485BPOS

January 27, 2023
Janus Investment Fund
Prospectus
 
Class D Shares
Ticker
Multi-Asset U.S. Equity
 
Janus Henderson Balanced Fund
JANBX
Janus Henderson Contrarian Fund
JACNX
Janus Henderson Enterprise Fund
JANEX
Janus Henderson Forty Fund
JFRDX
Janus Henderson Growth and Income Fund
JNGIX
Janus Henderson Research Fund
JNRFX
Janus Henderson Triton Fund
JANIX
Janus Henderson Venture Fund
JANVX
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The Securities and Exchange Commission has not approved or disapproved of these securities or passed on the accuracy or adequacy of this Prospectus. Any representation to the contrary is a criminal offense.

This Prospectus describes eight portfolios (each, a “Fund” and collectively, the “Funds”) of Janus Investment Fund (the “Trust”). Janus Henderson Investors US LLC (the “Adviser”) serves as investment adviser to each Fund.
The Funds offer multiple classes of shares in order to meet the needs of various types of investors. Only Class D Shares (the “Shares”) are offered by this Prospectus. The Shares are offered directly through the Janus Henderson funds to eligible investors by calling 1-800-525-3713 or at janushenderson.com/individual. The Shares are not offered through financial intermediaries.
For the purpose of this Prospectus, any reference to the “Janus Henderson funds” is inclusive of all series of the Trust, collectively, unless otherwise noted in this Prospectus.

Table of contents
Fund summary
 
2
9
14
18
23
27
32
37
Additional information about the Funds
 
42
42
50
Management of the Funds
 
62
62
65
68
69
Shareholder’s manual
 
72
76
78
78
79
80
81
83
85
89
97
1 | Janus Investment Fund

Fund summary
Ticker:
JANBX
Class D Shares
Investment Objective
Janus Henderson Balanced Fund seeks long-term capital growth, consistent with preservation of capital and balanced by current income.
Fees and Expenses of the Fund
This table describes the fees and expenses that you may pay if you buy, hold, and sell Shares of the Fund.
ANNUAL FUND OPERATING EXPENSES
(expenses that you pay each year as a percentage of the value of your investment)
 
Class D
Management Fees
 
0.55%
Other Expenses
 
0.15%
Total Annual Fund Operating Expenses
 
0.70%
EXAMPLE:
The Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated, reinvest all dividends and distributions, and then redeem all of your Shares at the end of each period. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
 
1 Year
3 Years
5 Years
10 Years
Class D Shares
$ 72
$ 224
$ 390
$ 871
Portfolio Turnover: The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 79% of the average value of its portfolio.
Principal investment strategies
The Fund pursues its investment objective by normally investing 35-65% of its assets in equity securities and the remaining assets in fixed-income securities and cash equivalents. The Fund normally invests at least 25% of its assets in fixed-income senior securities. As of September 30, 2022, approximately 52.15% of the Fund’s assets were held in equity securities, including common stocks, and 47.85% of the Fund’s assets were held in fixed-income securities and cash equivalents.
The Fund’s equity investments include, but are not limited to, common stocks and other securities with equity characteristics. The Fund’s fixed-income investments include, but are not limited to, government notes and bonds, corporate bonds, commercial and residential mortgage-backed securities, and asset-backed securities. The Fund may also invest in money market instruments. The Fund may invest in fixed and floating rate obligations with varying durations.
The Fund will limit its investments in high-yield/high-risk bonds (also known as “junk” bonds) to 35% of the fixed-income portion of its net assets. The Fund may enter into “to be announced” or “TBA” commitments when purchasing mortgage-backed securities or other securities. The Fund also invests in securities that have contractual restrictions that prohibit or limit their public resale (these are known as “restricted securities”), which may include Rule 144A securities. The Fund may also invest in foreign securities, which may include investments in emerging market securities.
The Fund may also invest its assets in derivatives, which are instruments that have a value derived from, or directly linked to, an underlying asset, such as equity securities, fixed-income securities, commodities, currencies, interest rates, or market indices. In particular, the Fund may use forward currency contracts to offset risks associated with an investment, currency
2 | Janus Henderson Balanced Fund

exposure, or market conditions and may use interest rate swaps and futures, including Treasury bond futures, to manage interest rate risk, yield curve positioning, and country exposure. The Fund may also use index credit default swaps for hedging purposes (to offset risks associated with an investment exposure, or market conditions), to increase or decrease the Fund’s exposure to a particular market, to manage or adjust the risk profile of the Fund relative to its benchmark index, and to earn income, enhance returns, or preserve capital. The Fund’s exposure to derivatives will vary, and may include derivatives that have characteristics similar to the securities in which the Fund may directly invest. The Fund may take short positions on derivatives instruments.
In choosing investments for the Fund, the portfolio manager who focuses on the equity portion of the Fund applies a “bottom up” approach. In other words, the equity portfolio manager looks at companies one at a time to determine if a company is an attractive investment opportunity and if it is consistent with the Fund’s investment policies. Factors that the equity portfolio manager may consider in his fundamental analysis include a company’s revenue growth potential, returns on capital, and balance sheet flexibility. The equity portfolio manager will generally consider selling a security when, among other things, it reaches or exceeds its targeted value, the investment thesis for owning the position has changed, or to rebalance industry or sector weightings.
The portfolio managers who focus on the fixed-income portion of the Fund use research-driven, “top-down” and “bottom-up” factors to identify and manage exposure to risks across sectors, industries, and individual investments. The fixed-income portfolio managers evaluate expected risk-adjusted returns on a portfolio and position level by analyzing fundamentals, valuations, and market technical indicators.
The Fund may seek to earn additional income through lending its securities to certain qualified broker-dealers and institutions on a short-term or long-term basis, in an amount equal to up to one-third of its total assets of its fixed-income investments as determined at the time of the loan origination.
Principal investment risks
The biggest risk is that the Fund’s returns will vary, and you could lose money. The Fund is designed for long-term investors seeking a balanced portfolio, including common stocks and bonds. Common stocks tend to be more volatile than many other investment choices. The principal risks associated with investing in the Fund are set forth below.
Market Risk.The value of the Fund’s portfolio may decrease due to short-term market movements and over more prolonged market downturns. As a result, the Fund’s net asset value may fluctuate and it may be more difficult to value or sell the Fund’s holdings. Market risk may affect a single issuer, industry, economic sector, or the market as a whole. Market risk may be magnified if certain social, political, economic, and other conditions and events (such as terrorism, conflicts, including related sanctions, social unrest, natural disasters, epidemics and pandemics, including COVID-19) adversely interrupt the global economy and financial markets. It is important to understand that the value of your investment may fall, sometimes sharply, in response to changes in the market, and you could lose money.
Growth Securities Risk.Securities of companies perceived to be “growth” companies may be more volatile than other stocks and may involve special risks. If the portfolio managers’ perception of a company’s growth potential is not realized, the securities purchased may not perform as expected, reducing the Fund’s returns. In addition, because different types of stocks tend to shift in and out of favor depending on market and economic conditions, “growth” stocks may perform differently from the market as a whole and other types of securities.
Dividend-Oriented Stocks Risk.Companies that have paid regular dividends to shareholders may decrease or eliminate dividend payments in the future. A decrease in dividend payments by an issuer may result in a decrease in the value of the security held by the Fund or the Fund receiving less income.
Fixed-Income Securities Risk.Fixed-income securities are generally subject to the following risks:
Interest rate risk is the risk that prices of bonds and other fixed-income securities will increase as interest rates fall and decrease as interest rates rise. The United States is currently experiencing a rising interest rate environment, which may increase the Fund’s exposure to risks associated with rising interest rates. Rising interest rates have unpredictable effects on the markets and may expose fixed-income and related markets to heightened volatility.
Credit risk is the risk that the credit strength of an issuer of a fixed-income security will weaken and/or that the issuer will be unable to make timely principal and interest payments and that the security may go into default.
3 | Janus Henderson Balanced Fund

Prepayment risk is the risk that, during periods of falling interest rates, certain debt obligations may be paid off quicker than originally anticipated, which may cause the Fund to reinvest its assets in securities with lower yields, resulting in a decline in the Fund’s income or return potential.
Extension risk is the risk that, during periods of rising interest rates, certain debt obligations may be paid off substantially slower than originally anticipated, and as a result, the value of those obligations may fall.
Valuation risk is the risk that one or more of the fixed-income securities in which the Fund invests are priced differently than the value realized upon such security’s sale. In times of market instability, valuation may be more difficult. Valuation may also be affected by changes in the issuer’s financial strength, the market’s perception of such strength, or in the credit rating of the issuer or the security.
Liquidity risk is the risk that fixed-income securities may be difficult or impossible to sell at the time that the portfolio managers would like or at the price the portfolio managers believe the security is currently worth. Consequently, the Fund may have to accept a lower price to sell a security, sell other securities to raise cash, or give up an investment opportunity, any of which could have a negative effect on the Fund’s performance. In unusual market conditions, even normally liquid securities may be affected by a degree of liquidity risk (i.e., if the number and capacity of traditional market participants is reduced).
High-Yield/High-Risk Bond Risk.High-yield/high-risk bonds are considered speculative and may be more sensitive than other types of bonds to economic changes, political changes, or adverse developments specific to the company that issued the bond, which may adversely affect their value.
Portfolio Management Risk.The Fund is an actively managed investment portfolio and is therefore subject to the risk that the investment strategies and research process employed for the Fund may fail to produce the intended results. The Fund may underperform its benchmark index or other mutual funds with similar investment objectives.
Mortgage- and Asset-Backed Securities Risk.Mortgage- and asset-backed securities represent interests in “pools” of commercial or residential mortgages or other assets, including consumer loans or receivables. The value of mortgage- and asset-backed securities will be influenced by factors affecting the real estate market and the assets underlying these securities. Investments in mortgage-and asset-backed securities may be subject to credit risk, valuation risk, liquidity risk, extension risk, and prepayment risk. These securities also are subject to risk of default on the underlying mortgage or asset, particularly during periods of economic downturn.
Sovereign Debt Risk.Some investments in U.S. and non-U.S. government debt securities (“sovereign debt”) are considered low risk. However, investments in sovereign debt, especially the debt of certain emerging market countries, can involve a high degree of risk, including the risk that the governmental entity that controls the repayment of sovereign debt may not be willing or able to repay the principal and/or to pay the interest on its sovereign debt in a timely manner. A sovereign debtor’s willingness or ability to satisfy its debt obligation may be affected by various factors including, but not limited to, its cash flow situation, the extent of its foreign currency reserves, the availability of foreign exchange when a payment is due, and the relative size of its debt position in relation to its economy as a whole. In the event of default, there may be limited or no legal remedies for collecting sovereign debt and there may be no bankruptcy proceedings through which the Fund may collect all or part of the sovereign debt that a governmental entity has not repaid. In addition, to the extent the Fund invests in non-U.S. sovereign debt, it may be subject to currency risk.
Derivatives Risk.Derivatives can be volatile and involve risks in addition to the risks of the underlying referenced securities or asset. Gains or losses from a derivative investment can be substantially greater than the derivative’s original cost, and can therefore involve leverage. Leverage may cause the Fund to be more volatile than if it had not used leverage. Derivatives entail the risk that the counterparty will default on its payment obligations. Derivatives used for hedging purposes may reduce or eliminate gains or cause losses if the market moves in a manner different from that anticipated by the portfolio managers or if the cost of the derivative outweighs the benefit of the hedge.
Floating Rate Obligations Risk.The Fund may invest in floating rate obligations with interest rates that reset regularly, maintaining a fixed spread over a stated reference rate. The interest rates on floating rate obligations typically reset quarterly, although rates on some obligations may adjust at other intervals. Unexpected changes in the interest rates on floating rate obligations could result in lower income to the Fund. In addition, the secondary market on which floating rate obligations are traded may be less liquid than the market for investment grade securities or other types of income-producing securities, which may have an adverse impact on their market price. There is also a potential that there is no active market to trade
4 | Janus Henderson Balanced Fund

floating rate obligations, that there may be restrictions on their transfer, or that the issuer may default. As a result, the Fund may be unable to sell floating rate obligations at the desired time or may be able to sell only at a price less than fair market value.
Foreign Exposure Risk.Foreign markets, including emerging markets, can be more volatile than the U.S. market. As a result, the Fund’s returns and net asset value may be affected by fluctuations in currency exchange rates or political or economic conditions in a particular country. In some foreign markets, there may not be protection against failure by other parties to complete transactions. It may not be possible for the Fund to repatriate capital, dividends, interest, and other income from a particular country or governmental entity. In addition, a market swing in one or more countries or regions where the Fund has invested a significant amount of its assets may have a greater effect on the Fund’s performance than it would in a more geographically diversified portfolio. To the extent the Fund invests in foreign debt securities, such investments are sensitive to changes in interest rates. Additionally, investments in securities of foreign governments involve the risk that a foreign government may not be willing or able to pay interest or repay principal when due. The Fund’s investments in emerging market countries, if any, may involve risks greater than, or in addition to, the risks of investing in more developed countries.
TBA Commitments Risk.Although TBA securities must meet industry-accepted “good delivery” standards, there can be no assurance that a security purchased on a forward commitment basis will ultimately be issued or delivered by the counterparty. If the counterparty to a transaction fails to deliver the securities, the Fund could suffer a loss. Because TBA commitments do not require the delivery of a specific security, the characteristics of a security delivered to the Fund may be less favorable than expected. There is a risk that the security that the Fund buys will lose value between the purchase and settlement dates. TBA purchase and sales commitments may significantly increase the Fund’s portfolio turnover rate and are not included in the portfolio turnover rate calculation.
Short Exposure Risk.The Fund may enter into a derivatives transaction to obtain short investment exposure to the underlying reference asset. If the value of the underlying reference asset on which the Fund has obtained a short investment exposure increases, the Fund will incur a loss. This potential loss is theoretically unlimited. A short exposure through a derivative also exposes the Fund to credit risk, counterparty risk, and leverage risk.
Restricted Securities Risk.Investments in restricted securities, including securities issued under Regulation S and Rule 144A, could have the effect of decreasing the Fund’s liquidity profile or preventing the Fund from disposing of them promptly at advantageous prices. Restricted securities may be less liquid than other investments because such securities may not always be readily sold in broad public markets and may have no active trading market. As a result, they may be difficult to value because market quotations may not be readily available.
LIBOR Replacement Risk.Certain debt securities, derivatives, or other financial instruments utilize the London Inter-Bank Offered Rate (“LIBOR”) as a reference rate for various rate calculations. The U.K. Financial Conduct Authority has ceased to publish or maintain as representative many LIBOR settings and will phase out certain other commonly-used U.S. dollar LIBOR settings as of June 30, 2023. The elimination of LIBOR or other reference rates and the transition process away from LIBOR could adversely impact (i) volatility and liquidity in markets that are tied to those reference rates, (ii) the market for, or value of, specific securities or payments linked to those reference rates, (iii) the availability or terms of borrowing or refinancing, or (iv) the effectiveness of hedging strategies. For these and other reasons, the elimination of LIBOR or other reference rates may adversely affect the Fund’s performance and/or net asset value. Alternatives to LIBOR are established or in development in most major currencies including the Secured Overnight Financing Rate (“SOFR”) that is intended to replace the U.S. dollar LIBOR.
The effect of the discontinuation of LIBOR or other reference rates on the Fund will vary depending on, among other things (i) existing fallback or termination provisions in individual contracts and (ii) whether, how, and when industry participants develop and adopt new reference rates and fallbacks for both legacy and new products and instruments. Accordingly, it is difficult to predict the full impact of the transition away from LIBOR or other reference rates on the Fund until new reference rates and fallbacks for both legacy and new products, instruments, and contracts are commercially accepted.
Securities Lending Risk.There is the risk that when portfolio securities are lent, the securities may not be returned on a timely basis, and the Fund may experience delays and costs in recovering the security or gaining access to the collateral provided to the Fund to collateralize the loan. If the Fund is unable to recover a security on loan, the Fund may use the collateral to purchase replacement securities in the market. There is a risk that the value of the collateral could decrease below the cost of the replacement security by the time the replacement investment is made, resulting in a loss to the Fund.
5 | Janus Henderson Balanced Fund

An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Performance information
The following information provides some indication of the risks of investing in the Fund by showing how the Fund’s performance has varied over time. Class D Shares of the Fund commenced operations on February 16, 2010, as a result of the restructuring of Class J Shares, the predecessor share class. The performance shown for Class D Shares for periods prior to February 16, 2010, reflects the performance of the Fund’s former Class J Shares, calculated using the fees and expenses in effect during the periods shown, net of any applicable fee and expense limitations or waivers. If Class D Shares of the Fund had been available during periods prior to February 16, 2010, the performance shown may have been different. The performance shown for the periods following the Fund’s commencement of Class D Shares reflects the fees and expenses of Class D Shares, net of any applicable fee and expense limitations or waivers.
The bar chart depicts the change in performance from year to year during the periods indicated. The table compares the Fund’s average annual returns for the periods indicated to a broad-based securities market index, as well as to one or more supplemental indices that have investment characteristics similar to those of the Fund. All figures assume reinvestment of dividends and distributions. For certain periods, the Fund’s performance reflects the effect of expense waivers. Without the effect of these expense waivers, the performance shown would have been lower.
The Fund’s past performance (before and after taxes) does not necessarily indicate how it will perform in the future. Updated performance information is available at janushenderson.com/allfunds or by calling 1-800-525-3713.
Annual Total Returns for Class D Shares (calendar year-end)
Best Quarter:
2nd Quarter 2020
12.90%
Worst Quarter:
2nd Quarter 2022
– 11.66%
Average Annual Total Returns (periods ended 12/31/22)
 
 
 
 
 
1 Year
5 Years
10 Years
Since
Inception
(9/1/92)
Class D Shares
 
 
 
 
Return Before Taxes
– 16.59%
6.62%
8.35%
9.28%
Return After Taxes on Distributions
– 17.00%
5.59%
7.10%
7.87%
Return After Taxes on Distributions and Sale of Fund Shares(1)
– 9.58%
5.03%
6.45%
7.46%
S&P 500® Index
(reflects no deduction for expenses, fees, or taxes)
– 18.11%
9.42%
12.56%
9.74%
Bloomberg U.S. Aggregate Bond Index
(reflects no deduction for expenses, fees, or taxes)
– 13.01%
0.02%
1.06%
4.54%
Balanced Index
(reflects no deduction for expenses, fees, or taxes)
– 15.52%
5.49%
7.51%
7.68%
(1) 
If the Fund incurs a loss, which generates a tax benefit, the Return After Taxes on Distributions and Sale of Fund Shares may exceed the Fund’s other return figures.
6 | Janus Henderson Balanced Fund

The Fund’s primary benchmark index is the S&P 500 Index. The Fund also compares its performance to the Bloomberg U.S. Aggregate Bond Index and the Balanced Index. The indices are described below.
The S&P 500 Index is a commonly recognized, market capitalization-weighted index of 500 widely held equity securities, designed to measure broad U.S. equity performance.
The Bloomberg U.S. Aggregate Bond Index is made up of U.S. dollar-denominated, fixed-rate taxable bonds, including securities that are of investment grade quality or better.
The Balanced Index is an internally-calculated, hypothetical combination of unmanaged indices that combines total returns from the S&P 500 Index (55%) and the Bloomberg U.S. Aggregate Bond Index (45%).
After-tax returns are calculated using distributions for the Fund’s Class D Shares for the periods following February 16, 2010; and for the Fund’s Class J Shares, the predecessor share class, for periods prior to February 16, 2010. If Class D Shares of the Fund had been available during these earlier periods, distributions may have been different and thus, after-tax returns may have been different from those shown. After-tax returns are calculated using the historically highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your individual tax situation and may differ from those shown in the preceding table. The after-tax return information shown above does not apply to Fund shares held through a tax-advantaged account, such as a 401(k) plan or an IRA.
Management
Investment Adviser:  Janus Henderson Investors US LLC
Portfolio Managers:  Jeremiah Buckley, CFA, is Executive Vice President and Co-Portfolio Manager of the Fund, which he has co-managed since December 2015. Michael Keough is Executive Vice President and Co-Portfolio Manager of the Fund, which he has co-managed since December 2019. Greg Wilensky, CFA, is Executive Vice President and Co-Portfolio Manager of the Fund, which he has co-managed since February 2020.
Purchase and sale of Fund shares
Minimum Investment Requirements
 
To open a new regular Fund account
$2,500
To open a new regular Fund account with an automatic investment program of $50 per month
$100
To open a new UGMA/UTMA account, Coverdell Education Savings Account, or a retirement Fund account
 
• without an automatic investment program
$1,000
• with an automatic investment program of $50 per month
$100
To add to any existing type of Fund account without an automatic investment program
$50
You may generally purchase, exchange, or redeem Fund Shares on any business day by written request, wire transfer, telephone, and in most cases, online at janushenderson.com/individual. You may conduct transactions by mail (Janus Henderson, P.O. Box 219109, Kansas City, MO 64121-9109), or by telephone at 1-800-525-3713. Purchase, exchange, or redemption requests must be received in good order by the Fund or its agents prior to the close of the trading session of the New York Stock Exchange in order to receive that day’s net asset value. For additional information, refer to “To Open an Account or Buy Shares,” “To Exchange Shares,” and/or “To Sell Shares” in the Prospectus.
Tax information
The Fund’s distributions are taxable, and will be taxed as ordinary income or capital gains, unless you are investing through a tax-advantaged arrangement, such as a 401(k) plan or an individual retirement account (in which case you may be taxed upon withdrawal of your investment from such account).
Payments to broker-dealers and other financial intermediaries
With respect to share classes not offered in this Prospectus, the Fund or its distributor (or its affiliates) pay select broker-dealer firms or other financial intermediaries for the sale of Fund shares and related services. These payments may create a
7 | Janus Henderson Balanced Fund

conflict of interest by influencing a broker-dealer or other intermediary or a salesperson to recommend the Fund over another investment or to recommend one share class over another.
8 | Janus Henderson Balanced Fund

Fund summary
Ticker:
JACNX
Class D Shares
Investment Objective
Janus Henderson Contrarian Fund seeks long-term growth of capital.
Fees and Expenses of the Fund
This table describes the fees and expenses that you may pay if you buy, hold, and sell Shares of the Fund.
ANNUAL FUND OPERATING EXPENSES
(expenses that you pay each year as a percentage of the value of your investment)
 
Class D
Management Fees(1)
 
0.70%
Other Expenses
 
0.16%
Total Annual Fund Operating Expenses
 
0.86%
(1)
This fee may adjust up or down monthly based on the Fund’s performance relative to its benchmark index over the performance measurement period. For more information regarding performance-based advisory fees, refer to “Management Expenses” in the Fund’s Prospectus.
EXAMPLE:
The Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated, reinvest all dividends and distributions, and then redeem all of your Shares at the end of each period. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
 
1 Year
3 Years
5 Years
10 Years
Class D Shares
$ 88
$ 274
$ 477
$ 1,061
Portfolio Turnover: The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 48% of the average value of its portfolio.
Principal investment strategies
The Fund pursues its investment objective by investing, under normal circumstances, at least 80% of its net assets (plus any borrowings for investment purposes) in equity securities with the potential for long-term growth of capital. The Fund normally invests primarily in a portfolio of 35-55 common stocks. The portfolio manager seeks to invest in companies where the stock price trades at a significant discount to the portfolio manager’s estimate of fair value and whose intrinsic value the portfolio manager believes will grow over time. The Fund is classified as non-diversified, which allows it to hold larger positions in securities compared to a fund that is classified as diversified. The Fund may invest in companies of any size, from larger, well-established companies to smaller, emerging growth companies. The Fund may also invest in fixed-income instruments, such as convertible securities and preferred stock. The Fund may invest in foreign securities. The Fund may also invest in real estate investment trusts (“REITs”).
The portfolio manager applies a “bottom up” approach in choosing investments. In other words, the portfolio manager looks at companies one at a time to determine if a company is an attractive investment opportunity and if it is consistent with the Fund’s investment policies. In conducting the “bottom up” analysis, the portfolio manager seeks to identify durable businesses whose stocks are available at market prices below the portfolio manager’s estimate of their intrinsic value, whose intrinsic value is expected to grow over time, and whose management teams are aligned with shareholders. The portfolio manager will generally consider selling a stock when, in the portfolio manager’s opinion, the business shows declining fundamentals, the stock is overvalued, or if the investing thesis for owning the stock has changed.
9 | Janus Henderson Contrarian Fund

The Fund may seek to earn additional income through lending its securities to certain qualified broker-dealers and institutions on a short-term or long-term basis, in an amount equal to up to one-third of its total assets as determined at the time of the loan origination.
Principal investment risks
The biggest risk is that the Fund’s returns will vary, and you could lose money. The Fund is designed for long-term investors seeking an equity portfolio, including common stocks. Common stocks tend to be more volatile than many other investment choices. The principal risks associated with investing in the Fund are set forth below.
Market Risk.The value of the Fund’s portfolio may decrease due to short-term market movements and over more prolonged market downturns. As a result, the Fund’s net asset value may fluctuate and it may be more difficult to value or sell the Fund’s holdings. Market risk may affect a single issuer, industry, economic sector, or the market as a whole. Market risk may be magnified if certain social, political, economic, and other conditions and events (such as terrorism, conflicts, including related sanctions, social unrest, natural disasters, epidemics and pandemics, including COVID-19) adversely interrupt the global economy and financial markets. It is important to understand that the value of your investment may fall, sometimes sharply, in response to changes in the market, and you could lose money.
Portfolio Management Risk.The Fund is an actively managed investment portfolio and is therefore subject to the risk that the investment strategies and research process employed for the Fund may fail to produce the intended results. The Fund may underperform its benchmark index or other mutual funds with similar investment objectives.
Small- and Mid-Sized Companies Risk.Investments in securities issued by small- and mid-sized companies, which can include smaller, start-up companies offering emerging products or services, may involve greater risks than are customarily associated with larger, more established companies. For example, while small- and mid-sized companies may realize more substantial growth than larger or more established issuers, they may also suffer more significant losses as a result of their narrow product lines, limited operating history, greater exposure to competitive threats, limited financial resources, limited trading markets, and the potential lack of management depth. Securities issued by small- and mid-sized companies tend to be more volatile and somewhat more speculative than securities issued by larger or more established companies and may underperform as compared to the securities of larger or more established companies. These holdings are also subject to wider price fluctuations and tend to be less liquid than stocks of larger or more established companies, which could have a significant adverse effect on the Fund’s returns, especially as market conditions change.
Value Investing Risk.Because different types of stocks tend to shift in and out of favor depending on market and economic conditions, “value” stocks may perform differently than other types of stocks and from the market as a whole, and can continue to be undervalued by the market for long periods of time. It is also possible that a value stock will never appreciate to the extent expected by the portfolio manager.
Growth Securities Risk.Securities of companies perceived to be “growth” companies may be more volatile than other stocks and may involve special risks. If the portfolio manager’s perception of a company’s growth potential is not realized, the securities purchased may not perform as expected, reducing the Fund’s returns. In addition, because different types of stocks tend to shift in and out of favor depending on market and economic conditions, “growth” stocks may perform differently from the market as a whole and other types of securities.
Nondiversification Risk.The Fund is classified as nondiversified under the Investment Company Act of 1940, as amended. This gives the Fund’s portfolio manager more flexibility to hold larger positions in securities. As a result, an increase or decrease in the value of a single security held by the Fund may have a greater impact on the Fund’s net asset value and total return.
Issuer Concentration Risk.The Fund’s portfolio may be comprised of a relatively small number of issuers in comparison to other funds. As a result, the Fund may be subject to greater risks than a fund that invests in a greater number of issuers. A change in the value of any single investment held by the Fund may affect the overall value of the Fund more than it would affect a fund that holds more investments. In particular, the Fund may be more susceptible to adverse developments affecting any single issuer held by the Fund and may be susceptible to greater losses because of these developments.
REIT Risk.REITs are subject to certain risks inherent in the direct ownership of real estate, including without limitation, a possible lack of mortgage funds and associated interest rate risks, overbuilding, property vacancies, increases in property taxes and operating expenses, changes in zoning laws, losses due to environmental damages and changes in neighborhood values
10 | Janus Henderson Contrarian Fund

and appeal to purchasers. In addition, a REIT could fail to qualify for tax-free pass-through of its income under the Internal Revenue Code of 1986, as amended, or fail to maintain its exemption from registration under the Investment Company Act of 1940, as amended, which could produce adverse economic consequences for the REIT and its investors, including the Fund. Dividends received by the Fund from a REIT generally will not constitute qualified dividend income.
Foreign Exposure Risk.Foreign markets can be more volatile than the U.S. market. As a result, the Fund’s returns and net asset value may be affected by fluctuations in currency exchange rates or political or economic conditions in a particular country. In some foreign markets, there may not be protection against failure by other parties to complete transactions. It may not be possible for the Fund to repatriate capital, dividends, interest, and other income from a particular country or governmental entity. In addition, a market swing in one or more countries or regions where the Fund has invested a significant amount of its assets may have a greater effect on the Fund’s performance than it would in a more geographically diversified portfolio.
Fixed-Income Securities Risk.Fixed-income securities are generally subject to the following risks:
Interest rate risk is the risk that prices of bonds and other fixed-income securities will increase as interest rates fall and decrease as interest rates rise. The United States is currently experiencing a rising interest rate environment, which may increase the Fund’s exposure to risks associated with rising interest rates. Rising interest rates have unpredictable effects on the markets and may expose fixed-income and related markets to heightened volatility.
Credit risk is the risk that the credit strength of an issuer of a fixed-income security will weaken and/or that the issuer will be unable to make timely principal and interest payments and that the security may go into default.
Prepayment risk is the risk that, during periods of falling interest rates, certain debt obligations may be paid off quicker than originally anticipated, which may cause the Fund to reinvest its assets in securities with lower yields, resulting in a decline in the Fund’s income or return potential.
Extension risk is the risk that, during periods of rising interest rates, certain debt obligations may be paid off substantially slower than originally anticipated, and as a result, the value of those obligations may fall.
Valuation risk is the risk that one or more of the fixed-income securities in which the Fund invests are priced differently than the value realized upon such security’s sale. In times of market instability, valuation may be more difficult. Valuation may also be affected by changes in the issuer’s financial strength, the market’s perception of such strength, or in the credit rating of the issuer or the security.
Liquidity risk is the risk that fixed-income securities may be difficult or impossible to sell at the time that the portfolio manager would like or at the price the portfolio manager believes the security is currently worth. Consequently, the Fund may have to accept a lower price to sell a security, sell other securities to raise cash, or give up an investment opportunity, any of which could have a negative effect on the Fund’s performance. In unusual market conditions, even normally liquid securities may be affected by a degree of liquidity risk (i.e., if the number and capacity of traditional market participants is reduced).
Convertible Securities Risk.The Fund may invest in securities that are convertible into preferred and common stocks, and thus, is subject to the risks of investments in both debt and equity securities. The market value of convertible securities tends to decline as interest rates increase and, conversely, tends to increase as interest rates decline. In addition, because of the conversion feature, the market value of convertible securities tends to vary with fluctuations in the market value of the underlying preferred and common stocks and, therefore, also will react to variations in the general market for equity securities.
Securities Lending Risk.There is the risk that when portfolio securities are lent, the securities may not be returned on a timely basis, and the Fund may experience delays and costs in recovering the security or gaining access to the collateral provided to the Fund to collateralize the loan. If the Fund is unable to recover a security on loan, the Fund may use the collateral to purchase replacement securities in the market. There is a risk that the value of the collateral could decrease below the cost of the replacement security by the time the replacement investment is made, resulting in a loss to the Fund.
An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Performance information
The following information provides some indication of the risks of investing in the Fund by showing how the Fund’s performance has varied over time. Class D Shares of the Fund commenced operations on February 16, 2010, as a result of
11 | Janus Henderson Contrarian Fund

the restructuring of Class J Shares, the predecessor share class. The performance shown for Class D Shares for periods prior to February 16, 2010, reflects the performance of the Fund’s former Class J Shares, calculated using the fees and expenses in effect during the periods shown, net of any applicable fee and expense limitations or waivers. If Class D Shares of the Fund had been available during periods prior to February 16, 2010, the performance shown may have been different. The performance shown for the periods following the Fund’s commencement of Class D Shares reflects the fees and expenses of Class D Shares, net of any applicable fee and expense limitations or waivers.
The bar chart depicts the change in performance from year to year during the periods indicated. The table compares the Fund’s average annual returns for the periods indicated to a broad-based securities market index. All figures assume reinvestment of dividends and distributions. For certain periods, the Fund’s performance reflects the effect of expense waivers. Without the effect of these expense waivers, the performance shown would have been lower.
The Fund’s past performance (before and after taxes) does not necessarily indicate how it will perform in the future. Updated performance information is available at janushenderson.com/allfunds or by calling 1-800-525-3713.
Annual Total Returns for Class D Shares (calendar year-end)
Best Quarter:
2nd Quarter 2020
25.98%
Worst Quarter:
1st Quarter 2020
– 24.60%
Average Annual Total Returns (periods ended 12/31/22)
 
 
 
 
 
1 Year
5 Years
10 Years
Since
Inception
(2/29/00)
Class D Shares
 
 
 
 
Return Before Taxes
– 21.54%
10.76%
10.39%
7.58%
Return After Taxes on Distributions
– 21.64%
8.96%
8.82%
6.68%
Return After Taxes on Distributions and Sale of Fund Shares(1)
– 12.68%
8.20%
8.16%
6.26%
S&P 500® Index
(reflects no deduction for expenses, fees, or taxes)
– 18.11%
9.42%
12.56%
6.64%
(1) 
If the Fund incurs a loss, which generates a tax benefit, the Return After Taxes on Distributions and Sale of Fund Shares may exceed the Fund’s other return figures.
The Fund’s primary benchmark index is the S&P 500 Index. The S&P 500 Index is used to calculate the Fund’s performance fee adjustment. The index is described below.
The S&P 500 Index is a commonly recognized, market capitalization-weighted index of 500 widely held equity securities, designed to measure broad U.S. equity performance.
After-tax returns are calculated using distributions for the Fund’s Class D Shares for the periods following February 16, 2010; and for the Fund’s Class J Shares, the predecessor share class, for periods prior to February 16, 2010. If Class D Shares of the Fund had been available during these earlier periods, distributions may have been different and thus, after-tax returns may have been different from those shown. After-tax returns are calculated using the historically highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your individual tax situation and may differ from those shown in the preceding table. The after-tax return information shown above does not apply to Fund shares held through a tax-advantaged account, such as a 401(k) plan or an IRA.
12 | Janus Henderson Contrarian Fund

Management
Investment Adviser:  Janus Henderson Investors US LLC
Portfolio Manager:  Nick Schommer, CFA, is Executive Vice President and Portfolio Manager of the Fund, which he has managed since July 2017.
Purchase and sale of Fund shares
Minimum Investment Requirements
 
To open a new regular Fund account
$2,500
To open a new regular Fund account with an automatic investment program of $50 per month
$100
To open a new UGMA/UTMA account, Coverdell Education Savings Account, or a retirement Fund account
 
• without an automatic investment program
$1,000
• with an automatic investment program of $50 per month
$100
To add to any existing type of Fund account without an automatic investment program
$50
You may generally purchase, exchange, or redeem Fund Shares on any business day by written request, wire transfer, telephone, and in most cases, online at janushenderson.com/individual. You may conduct transactions by mail (Janus Henderson, P.O. Box 219109, Kansas City, MO 64121-9109), or by telephone at 1-800-525-3713. Purchase, exchange, or redemption requests must be received in good order by the Fund or its agents prior to the close of the trading session of the New York Stock Exchange in order to receive that day’s net asset value. For additional information, refer to “To Open an Account or Buy Shares,” “To Exchange Shares,” and/or “To Sell Shares” in the Prospectus.
Tax information
The Fund’s distributions are taxable, and will be taxed as ordinary income or capital gains, unless you are investing through a tax-advantaged arrangement, such as a 401(k) plan or an individual retirement account (in which case you may be taxed upon withdrawal of your investment from such account).
Payments to broker-dealers and other financial intermediaries
With respect to share classes not offered in this Prospectus, the Fund or its distributor (or its affiliates) pay select broker-dealer firms or other financial intermediaries for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing a broker-dealer or other intermediary or a salesperson to recommend the Fund over another investment or to recommend one share class over another.
13 | Janus Henderson Contrarian Fund

Fund summary
Ticker:
JANEX
Class D Shares
Investment Objective
Janus Henderson Enterprise Fund seeks long-term growth of capital.
Fees and Expenses of the Fund
This table describes the fees and expenses that you may pay if you buy, hold, and sell Shares of the Fund.
ANNUAL FUND OPERATING EXPENSES
(expenses that you pay each year as a percentage of the value of your investment)
 
Class D
Management Fees
 
0.64%
Other Expenses
 
0.15%
Total Annual Fund Operating Expenses
 
0.79%
EXAMPLE:
The Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated, reinvest all dividends and distributions, and then redeem all of your Shares at the end of each period. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
 
1 Year
3 Years
5 Years
10 Years
Class D Shares
$ 81
$ 252
$ 439
$ 978
Portfolio Turnover: The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 9% of the average value of its portfolio.
Principal investment strategies
The Fund pursues its investment objective by investing primarily in common stocks selected for their growth potential, and normally invests at least 50% of its equity assets in medium-sized companies. The Fund considers medium-sized companies to be those whose market capitalization falls within the range of companies in the Russell Midcap® Growth Index. Market capitalization is a commonly used measure of the size and value of a company. The market capitalizations within the index will vary, but as of September 30, 2022, they ranged from approximately $271 million to $46.5 billion. The Fund may also invest in foreign securities.
The portfolio managers apply a “bottom up” approach in choosing investments. In other words, the portfolio managers look at companies one at a time to determine if a company is an attractive investment opportunity and if it is consistent with the Fund’s investment policies. Attributes considered in the process of securities selection may include sustainable growth, return on invested capital, attractive valuation, strength of management, and competitive positioning. The Fund will generally consider selling a stock when, in the portfolio managers’ opinion, there is a change in the company’s or industry’s fundamentals, there is a deterioration in a company’s competitive positioning, or if a company reaches or exceeds its targeted value. The Fund will also consider selling a stock if a company’s market capitalization exceeds the top of the medium-sized company range.
The Fund may seek to earn additional income through lending its securities to certain qualified broker-dealers and institutions on a short-term or long-term basis, in an amount equal to up to one-third of its total assets as determined at the time of the loan origination.
14 | Janus Henderson Enterprise Fund

Principal investment risks
The biggest risk is that the Fund’s returns will vary, and you could lose money. The Fund is designed for long-term investors seeking an equity portfolio, including common stocks. Common stocks tend to be more volatile than many other investment choices. The principal risks associated with investing in the Fund are set forth below.
Market Risk.The value of the Fund’s portfolio may decrease due to short-term market movements and over more prolonged market downturns. As a result, the Fund’s net asset value may fluctuate and it may be more difficult to value or sell the Fund’s holdings. Market risk may affect a single issuer, industry, economic sector, or the market as a whole. Market risk may be magnified if certain social, political, economic, and other conditions and events (such as terrorism, conflicts, including related sanctions, social unrest, natural disasters, epidemics and pandemics, including COVID-19) adversely interrupt the global economy and financial markets. It is important to understand that the value of your investment may fall, sometimes sharply, in response to changes in the market, and you could lose money.
Mid-Sized Companies Risk.Investments in securities issued by mid-sized companies may involve greater risks than are customarily associated with larger, more established companies. For example, while mid-sized companies may realize more substantial growth than larger or more established issuers, they may also suffer more significant losses as a result of their narrow product lines, limited operating history, greater exposure to competitive threats, limited financial resources, limited trading markets, and the potential lack of management depth. Securities issued by mid-sized companies tend to be more volatile than securities issued by larger or more established companies and may underperform as compared to the securities of larger or more established companies. These holdings are also subject to wider price fluctuations and tend to be less liquid than stocks of larger or more established companies, which could have a significant adverse effect on the Fund’s returns, especially as market conditions change.
Growth Securities Risk.Securities of companies perceived to be “growth” companies may be more volatile than other stocks and may involve special risks. If the portfolio managers’ perception of a company’s growth potential is not realized, the securities purchased may not perform as expected, reducing the Fund’s returns. In addition, because different types of stocks tend to shift in and out of favor depending on market and economic conditions, “growth” stocks may perform differently from the market as a whole and other types of securities.
Portfolio Management Risk.The Fund is an actively managed investment portfolio and is therefore subject to the risk that the investment strategies and research process employed for the Fund may fail to produce the intended results. The Fund may underperform its benchmark index or other mutual funds with similar investment objectives.
Industry and Sector Risk.Although the Fund does not concentrate its investments in specific industries or sectors, it may have a significant portion of its assets invested in securities of companies conducting similar business, or business within the same economic sector. Companies in the same industry or economic sector may be similarly affected by economic or market events, making the Fund more vulnerable to unfavorable developments than funds that invest more broadly. As the Fund’s portfolio becomes more concentrated, the Fund is less able to spread risk and potentially reduce the risk of loss and volatility. In addition, the Fund may be overweight or underweight in certain industries or sectors relative to its benchmark index, which may cause the Fund’s performance to be more or less sensitive to developments affecting those sectors.
Foreign Exposure Risk.Foreign markets can be more volatile than the U.S. market. As a result, the Fund’s returns and net asset value may be affected by fluctuations in currency exchange rates or political or economic conditions in a particular country. In some foreign markets, there may not be protection against failure by other parties to complete transactions. It may not be possible for the Fund to repatriate capital, dividends, interest, and other income from a particular country or governmental entity. In addition, a market swing in one or more countries or regions where the Fund has invested a significant amount of its assets may have a greater effect on the Fund’s performance than it would in a more geographically diversified portfolio.
Securities Lending Risk.There is the risk that when portfolio securities are lent, the securities may not be returned on a timely basis, and the Fund may experience delays and costs in recovering the security or gaining access to the collateral provided to the Fund to collateralize the loan. If the Fund is unable to recover a security on loan, the Fund may use the collateral to purchase replacement securities in the market. There is a risk that the value of the collateral could decrease below the cost of the replacement security by the time the replacement investment is made, resulting in a loss to the Fund.
An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
15 | Janus Henderson Enterprise Fund

Performance information
The following information provides some indication of the risks of investing in the Fund by showing how the Fund’s performance has varied over time. Class D Shares of the Fund commenced operations on February 16, 2010, as a result of the restructuring of Class J Shares, the predecessor share class. The performance shown for Class D Shares for periods prior to February 16, 2010, reflects the performance of the Fund’s former Class J Shares, calculated using the fees and expenses in effect during the periods shown, net of any applicable fee and expense limitations or waivers. If Class D Shares of the Fund had been available during periods prior to February 16, 2010, the performance shown may have been different. The performance shown for the periods following the Fund’s commencement of Class D Shares reflects the fees and expenses of Class D Shares, net of any applicable fee and expense limitations or waivers.
The bar chart depicts the change in performance from year to year during the periods indicated. The table compares the Fund’s average annual returns for the periods indicated to a broad-based securities market index. All figures assume reinvestment of dividends and distributions. For certain periods, the Fund’s performance reflects the effect of expense waivers. Without the effect of these expense waivers, the performance shown would have been lower.
The Fund’s past performance (before and after taxes) does not necessarily indicate how it will perform in the future. Updated performance information is available at janushenderson.com/allfunds or by calling 1-800-525-3713.
Annual Total Returns for Class D Shares (calendar year-end)
Best Quarter:
2nd Quarter 2020
23.21%
Worst Quarter:
1st Quarter 2020
– 24.06%
Average Annual Total Returns (periods ended 12/31/22)
 
 
 
 
 
1 Year
5 Years
10 Years
Since
Inception
(9/1/92)
Class D Shares
 
 
 
 
Return Before Taxes
– 16.05%
9.67%
13.02%
10.92%
Return After Taxes on Distributions
– 17.96%
7.45%
11.39%
9.96%
Return After Taxes on Distributions and Sale of Fund Shares(1)
– 8.16%
7.60%
10.68%
9.52%
Russell Midcap® Growth Index
(reflects no deduction for expenses, fees, or taxes)
– 26.72%
7.64%
11.41%
9.83%
(1) 
If the Fund incurs a loss, which generates a tax benefit, the Return After Taxes on Distributions and Sale of Fund Shares may exceed the Fund’s other return figures.
The Fund’s primary benchmark index is the Russell Midcap Growth Index. The index is described below.
The Russell Midcap Growth Index measures the performance of those Russell Midcap companies with higher price-to-book ratios and higher forecasted growth values. The stocks are also members of the Russell 1000® Growth Index.
After-tax returns are calculated using distributions for the Fund’s Class D Shares for the periods following February 16, 2010; and for the Fund’s Class J Shares, the predecessor share class, for periods prior to February 16, 2010. If Class D Shares of the Fund had been available during these earlier periods, distributions may have been different and thus, after-tax returns may have been different from those shown. After-tax returns are calculated using the historically highest individual federal
16 | Janus Henderson Enterprise Fund

marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your individual tax situation and may differ from those shown in the preceding table. The after-tax return information shown above does not apply to Fund shares held through a tax-advantaged account, such as a 401(k) plan or an IRA.
Management
Investment Adviser:  Janus Henderson Investors US LLC
Portfolio Managers:  Brian Demain, CFA, is Executive Vice President and Lead Portfolio Manager of the Fund, which he has managed or co-managed since November 2007. Cody Wheaton, CFA, is Executive Vice President and Co-Portfolio Manager of the Fund, which he has co-managed since July 2016.
Purchase and sale of Fund shares
Minimum Investment Requirements
 
To open a new regular Fund account
$2,500
To open a new regular Fund account with an automatic investment program of $50 per month
$100
To open a new UGMA/UTMA account, Coverdell Education Savings Account, or a retirement Fund account
 
• without an automatic investment program
$1,000
• with an automatic investment program of $50 per month
$100
To add to any existing type of Fund account without an automatic investment program
$50
You may generally purchase, exchange, or redeem Fund Shares on any business day by written request, wire transfer, telephone, and in most cases, online at janushenderson.com/individual. You may conduct transactions by mail (Janus Henderson, P.O. Box 219109, Kansas City, MO 64121-9109), or by telephone at 1-800-525-3713. Purchase, exchange, or redemption requests must be received in good order by the Fund or its agents prior to the close of the trading session of the New York Stock Exchange in order to receive that day’s net asset value. For additional information, refer to “To Open an Account or Buy Shares,” “To Exchange Shares,” and/or “To Sell Shares” in the Prospectus.
Tax information
The Fund’s distributions are taxable, and will be taxed as ordinary income or capital gains, unless you are investing through a tax-advantaged arrangement, such as a 401(k) plan or an individual retirement account (in which case you may be taxed upon withdrawal of your investment from such account).
Payments to broker-dealers and other financial intermediaries
With respect to share classes not offered in this Prospectus, the Fund or its distributor (or its affiliates) pay select broker-dealer firms or other financial intermediaries for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing a broker-dealer or other intermediary or a salesperson to recommend the Fund over another investment or to recommend one share class over another.
17 | Janus Henderson Enterprise Fund

Fund summary
Ticker:
JFRDX
Class D Shares
Investment Objective
Janus Henderson Forty Fund seeks long-term growth of capital.
Fees and Expenses of the Fund
This table describes the fees and expenses that you may pay if you buy, hold, and sell Shares of the Fund.
ANNUAL FUND OPERATING EXPENSES
(expenses that you pay each year as a percentage of the value of your investment)
 
Class D
Management Fees(1)
 
0.55%
Other Expenses
 
0.14%
Total Annual Fund Operating Expenses
 
0.69%
(1)
This fee may adjust up or down monthly based on the Fund’s performance relative to its benchmark index over the performance measurement period. For more information regarding performance-based advisory fees, refer to “Management Expenses” in the Fund’s Prospectus.
EXAMPLE:
The Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated, reinvest all dividends and distributions, and then redeem all of your Shares at the end of each period. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
 
1 Year
3 Years
5 Years
10 Years
Class D Shares
$ 70
$ 221
$ 384
$ 859
Portfolio Turnover: The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 39% of the average value of its portfolio.
Principal investment strategies
The Fund pursues its investment objective by normally investing primarily in a portfolio of 30-40 common stocks selected for their growth potential. The Fund may invest in companies of any size, but will invest primarily in larger, well-established companies. The Fund may also invest in foreign securities. The Fund is classified as non-diversified, which allows it to hold larger positions in securities compared to a fund that is classified as diversified. As of September 30, 2022, the Fund held stocks of 33 companies. Of these holdings, 30 comprised approximately 93.32% of the Fund’s holdings.
The portfolio managers apply a “bottom up” approach that focuses on fundamental research and considers, among other factors, a company’s sustainable competitive advantages, long-term growth potential, and shareholder value. The Fund will generally consider selling a security when, in the portfolio managers’ opinion, there is a deterioration in a company’s financials, the investment thesis for owning the position has changed, or if the security exceeds its targeted value.
The Fund may seek to earn additional income through lending its securities to certain qualified broker-dealers and institutions on a short-term or long-term basis, in an amount equal to up to one-third of its total assets as determined at the time of the loan origination.
18 | Janus Henderson Forty Fund

Principal investment risks
The biggest risk is that the Fund’s returns will vary, and you could lose money. The Fund is designed for long-term investors seeking an equity portfolio, including common stocks. Common stocks tend to be more volatile than many other investment choices. The principal risks associated with investing in the Fund are set forth below.
Market Risk.The value of the Fund’s portfolio may decrease due to short-term market movements and over more prolonged market downturns. As a result, the Fund’s net asset value may fluctuate and it may be more difficult to value or sell the Fund’s holdings. Market risk may affect a single issuer, industry, economic sector, or the market as a whole. Market risk may be magnified if certain social, political, economic, and other conditions and events (such as terrorism, conflicts, including related sanctions, social unrest, natural disasters, epidemics and pandemics, including COVID-19) adversely interrupt the global economy and financial markets. It is important to understand that the value of your investment may fall, sometimes sharply, in response to changes in the market, and you could lose money.
Portfolio Management Risk.The Fund is an actively managed investment portfolio and is therefore subject to the risk that the investment strategies and research process employed for the Fund may fail to produce the intended results. The Fund may underperform its benchmark index or other mutual funds with similar investment objectives.
Growth Securities Risk.Securities of companies perceived to be “growth” companies may be more volatile than other stocks and may involve special risks. If the portfolio managers’ perception of a company’s growth potential is not realized, the securities purchased may not perform as expected, reducing the Fund’s returns. In addition, because different types of stocks tend to shift in and out of favor depending on market and economic conditions, “growth” stocks may perform differently from the market as a whole and other types of securities.
Nondiversification Risk.The Fund is classified as nondiversified under the Investment Company Act of 1940, as amended. This gives the Fund’s portfolio managers more flexibility to hold larger positions in securities. As a result, an increase or decrease in the value of a single security held by the Fund may have a greater impact on the Fund’s net asset value and total return.
Issuer Concentration Risk.The Fund’s portfolio may be comprised of a relatively small number of issuers in comparison to other funds. As a result, the Fund may be subject to greater risks than a fund that invests in a greater number of issuers. A change in the value of any single investment held by the Fund may affect the overall value of the Fund more than it would affect a fund that holds more investments. In particular, the Fund may be more susceptible to adverse developments affecting any single issuer held by the Fund and may be susceptible to greater losses because of these developments. The Fund’s policy of concentrating its portfolio in a smaller number of holdings could result in more volatility in the Fund’s performance and share price.
Industry and Sector Risk.Although the Fund does not concentrate its investments in specific industries or sectors, it may have a significant portion of its assets invested in securities of companies conducting similar business, or business within the same economic sector. Companies in the same industry or economic sector may be similarly affected by economic or market events, making the Fund more vulnerable to unfavorable developments than funds that invest more broadly. As the Fund’s portfolio becomes more concentrated, the Fund is less able to spread risk and potentially reduce the risk of loss and volatility. In addition, the Fund may be overweight or underweight in certain industries or sectors relative to its benchmark index, which may cause the Fund’s performance to be more or less sensitive to developments affecting those sectors.
Mid-Sized Companies Risk.Investments in securities issued by mid-sized companies may involve greater risks than are customarily associated with larger, more established companies. For example, while mid-sized companies may realize more substantial growth than larger or more established issuers, they may also suffer more significant losses as a result of their narrow product lines, limited operating history, greater exposure to competitive threats, limited financial resources, limited trading markets, and the potential lack of management depth. Securities issued by mid-sized companies tend to be more volatile than securities issued by larger or more established companies and may underperform as compared to the securities of larger or more established companies. These holdings are also subject to wider price fluctuations and tend to be less liquid than stocks of larger or more established companies, which could have a significant adverse effect on the Fund’s returns, especially as market conditions change.
Foreign Exposure Risk.Foreign markets can be more volatile than the U.S. market. As a result, the Fund’s returns and net asset value may be affected by fluctuations in currency exchange rates or political or economic conditions in a particular country. In some foreign markets, there may not be protection against failure by other parties to complete transactions. It may
19 | Janus Henderson Forty Fund

not be possible for the Fund to repatriate capital, dividends, interest, and other income from a particular country or governmental entity. In addition, a market swing in one or more countries or regions where the Fund has invested a significant amount of its assets may have a greater effect on the Fund’s performance than it would in a more geographically diversified portfolio.
Securities Lending Risk.There is the risk that when portfolio securities are lent, the securities may not be returned on a timely basis, and the Fund may experience delays and costs in recovering the security or gaining access to the collateral provided to the Fund to collateralize the loan. If the Fund is unable to recover a security on loan, the Fund may use the collateral to purchase replacement securities in the market. There is a risk that the value of the collateral could decrease below the cost of the replacement security by the time the replacement investment is made, resulting in a loss to the Fund.
An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Performance information
The following information provides some indication of the risks of investing in the Fund by showing how the Fund’s performance has varied over time. Class D Shares of the Fund commenced operations on January 27, 2017. The performance shown for Class D Shares reflects the performance of the Fund’s Class S Shares from July 6, 2009 to January 27, 2017, calculated using the fees and expenses of Class S Shares, net of any applicable fee and expense limitations or waivers. The performance shown for Class D Shares reflects the performance of Janus Adviser Forty Fund’s (the “JAD Predecessor Fund”) Class S Shares (formerly named Class I Shares) from August 1, 2000 to July 6, 2009 (prior to the reorganization), calculated using the fees and expenses of Class S Shares of the JAD Predecessor Fund, net of any applicable fee and expense limitations or waivers. For the periods prior to August 1, 2000, the performance shown for Class D Shares reflects the historical performance of the Retirement Shares of Janus Aspen Series – Forty Portfolio (as a result of a separate prior reorganization of those Retirement Shares into the JAD Predecessor Fund). The performance shown for certain periods prior to August 1, 2000 was calculated using the fees and expenses of Class S Shares of the JAD Predecessor Fund, without the effect of any fee and expense limitations or waivers.
If Class D Shares of the Fund had been available during periods prior to January 27, 2017, the performance shown may have been different. The performance shown for periods following the Fund’s commencement of Class D Shares reflects the fees and expenses of Class D Shares, net of any applicable fee and expense limitations or waivers.
The bar chart depicts the change in performance from year to year during the periods indicated. The table compares the Fund’s average annual returns for the periods indicated to a broad-based securities market index, as well as to one or more supplemental indices that have investment characteristics similar to those of the Fund. All figures assume reinvestment of dividends and distributions. For certain periods, the Fund’s performance reflects the effect of expense waivers. Without the effect of these expense waivers, the performance shown would have been lower.
The Fund’s past performance (before and after taxes) does not necessarily indicate how it will perform in the future. Updated performance information is available at janushenderson.com/allfunds or by calling 1-800-525-3713.
Annual Total Returns for Class D Shares (calendar year-end)
Best Quarter:
2nd Quarter 2020
26.66%
Worst Quarter:
2nd Quarter 2022
– 25.51%
20 | Janus Henderson Forty Fund

Average Annual Total Returns (periods ended 12/31/22)
 
 
 
 
 
1 Year
5 Years
10 Years
Since
Inception
of Predecessor Fund
(5/1/97)
Class D Shares
 
 
 
 
Return Before Taxes
– 33.58%
9.52%
12.77%
10.85%
Return After Taxes on Distributions
– 33.59%
7.82%
9.54%
9.52%
Return After Taxes on Distributions and Sale of Fund Shares(1)
– 19.87%
7.61%
9.64%
9.26%
Russell 1000® Growth Index
(reflects no deduction for expenses, fees, or taxes)
– 29.14%
10.96%
14.10%
8.30%
S&P 500® Index
(reflects no deduction for expenses, fees, or taxes)
– 18.11%
9.42%
12.56%
8.30%
(1) 
If the Fund incurs a loss, which generates a tax benefit, the Return After Taxes on Distributions and Sale of Fund Shares may exceed the Fund’s other return figures.
The Fund’s primary benchmark index is the Russell 1000 Growth Index. The Fund also compares its performance to the S&P 500 Index. The indices are described below.
The Russell 1000 Growth Index measures the performance of those Russell 1000 companies with higher price-to-book ratios and higher forecasted growth values.
The S&P 500 Index is a commonly recognized, market capitalization-weighted index of 500 widely held equity securities, designed to measure broad U.S. equity performance.
After-tax returns are calculated using distributions for the Fund’s Class D Shares for the periods following January 27, 2017; for the Fund’s Class S Shares for periods July 6, 2009 to January 27, 2017; for the JAD Predecessor Fund’s Class S Shares (formerly named Class I Shares) for the periods August 1, 2000 to July 6, 2009; and actual distributions for other classes of shares for periods prior to August 1, 2000. If Class D Shares of the Fund had been available during these earlier periods, distributions may have been different and thus, after-tax returns may have been different from those shown. After-tax returns are calculated using the historically highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your individual tax situation and may differ from those shown in the preceding table. The after-tax return information shown above does not apply to Fund shares held through a tax-advantaged account, such as a 401(k) plan or an IRA.
Management
Investment Adviser:  Janus Henderson Investors US LLC
Portfolio Managers:  A. Douglas Rao is Executive Vice President and Co-Portfolio Manager of the Fund, which he has managed or co-managed since June 2013. Brian Recht is Executive Vice President and Co-Portfolio Manager of the Fund, which he has co-managed since March 2022. Nick Schommer, CFA, is Executive Vice President and Co-Portfolio Manager of the Fund, which he has co-managed since January 2016.
Purchase and sale of Fund shares
Minimum Investment Requirements
 
To open a new regular Fund account
$2,500
To open a new regular Fund account with an automatic investment program of $50 per month
$100
To open a new UGMA/UTMA account, Coverdell Education Savings Account, or a retirement Fund account
 
• without an automatic investment program
$1,000
• with an automatic investment program of $50 per month
$100
To add to any existing type of Fund account without an automatic investment program
$50
21 | Janus Henderson Forty Fund

You may generally purchase, exchange, or redeem Fund Shares on any business day by written request, wire transfer, telephone, and in most cases, online at janushenderson.com/individual. You may conduct transactions by mail (Janus Henderson, P.O. Box 219109, Kansas City, MO 64121-9109), or by telephone at 1-800-525-3713. Purchase, exchange, or redemption requests must be received in good order by the Fund or its agents prior to the close of the trading session of the New York Stock Exchange in order to receive that day’s net asset value. For additional information, refer to “To Open an Account or Buy Shares,” “To Exchange Shares,” and/or “To Sell Shares” in the Prospectus.
Tax information
The Fund’s distributions are taxable, and will be taxed as ordinary income or capital gains, unless you are investing through a tax-advantaged arrangement, such as a 401(k) plan or an individual retirement account (in which case you may be taxed upon withdrawal of your investment from such account).
Payments to broker-dealers and other financial intermediaries
With respect to share classes not offered in this Prospectus, the Fund or its distributor (or its affiliates) pay select broker-dealer firms or other financial intermediaries for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing a broker-dealer or other intermediary or a salesperson to recommend the Fund over another investment or to recommend one share class over another.
22 | Janus Henderson Forty Fund

Fund summary
Ticker:
JNGIX
Class D Shares
Investment Objective
Janus Henderson Growth and Income Fund seeks long-term capital growth and current income.
Fees and Expenses of the Fund
This table describes the fees and expenses that you may pay if you buy, hold, and sell Shares of the Fund.
ANNUAL FUND OPERATING EXPENSES
(expenses that you pay each year as a percentage of the value of your investment)
 
Class D
Management Fees
 
0.60%
Other Expenses
 
0.15%
Total Annual Fund Operating Expenses
 
0.75%
EXAMPLE:
The Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated, reinvest all dividends and distributions, and then redeem all of your Shares at the end of each period. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
 
1 Year
3 Years
5 Years
10 Years
Class D Shares
$ 77
$ 240
$ 417
$ 930
Portfolio Turnover: The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 17% of the average value of its portfolio.
Principal investment strategies
The Fund pursues its investment objective by normally investing in dividend-paying common stocks with strong growth potential. The Fund may also invest in foreign securities.
The portfolio manager applies a “bottom up” approach in choosing investments. In other words, the portfolio manager looks at companies one at a time to determine if a company is an attractive investment opportunity and if it is consistent with the Fund’s investment policies. Factors that the portfolio manager may consider in his fundamental analysis include a company’s returns on capital, balance sheet flexibility, and dividend growth potential. The portfolio manager will generally consider selling a security when, among other things, it reaches or exceeds its targeted value, the investment thesis for owning the position has changed, or to rebalance industry or sector weightings.
Principal investment risks
The biggest risk is that the Fund’s returns will vary, and you could lose money. The Fund is designed for long-term investors seeking an equity portfolio, including common stocks. Common stocks tend to be more volatile than many other investment choices. The Fund’s investment strategies could result in significant fluctuations of income. The principal risks associated with investing in the Fund are set forth below.
Market Risk.The value of the Fund’s portfolio may decrease due to short-term market movements and over more prolonged market downturns. As a result, the Fund’s net asset value may fluctuate and it may be more difficult to value or sell the
23 | Janus Henderson Growth and Income Fund

Fund’s holdings. Market risk may affect a single issuer, industry, economic sector, or the market as a whole. Market risk may be magnified if certain social, political, economic, and other conditions and events (such as terrorism, conflicts, including related sanctions, social unrest, natural disasters, epidemics and pandemics, including COVID-19) adversely interrupt the global economy and financial markets. It is important to understand that the value of your investment may fall, sometimes sharply, in response to changes in the market, and you could lose money.
Growth Securities Risk.Securities of companies perceived to be “growth” companies may be more volatile than other stocks and may involve special risks. If the portfolio manager’s perception of a company’s growth potential is not realized, the securities purchased may not perform as expected, reducing the Fund’s returns. In addition, because different types of stocks tend to shift in and out of favor depending on market and economic conditions, “growth” stocks may perform differently from the market as a whole and other types of securities.
Industry and Sector Risk.Although the Fund does not concentrate its investments in specific industries or sectors, it may have a significant portion of its assets invested in securities of companies conducting similar business, or business within the same economic sector. Companies in the same industry or economic sector may be similarly affected by economic or market events, making the Fund more vulnerable to unfavorable developments than funds that invest more broadly. As the Fund’s portfolio becomes more concentrated, the Fund is less able to spread risk and potentially reduce the risk of loss and volatility. In addition, the Fund may be overweight or underweight in certain industries or sectors relative to its benchmark index, which may cause the Fund’s performance to be more or less sensitive to developments affecting those sectors.
Dividend-Oriented Stocks Risk.Companies that have paid regular dividends to shareholders may decrease or eliminate dividend payments in the future. A decrease in dividend payments by an issuer may result in a decrease in the value of the security held by the Fund or the Fund receiving less income.
Portfolio Management Risk.The Fund is an actively managed investment portfolio and is therefore subject to the risk that the investment strategies and research process employed for the Fund may fail to produce the intended results. The Fund may underperform its benchmark index or other mutual funds with similar investment objectives.
Foreign Exposure Risk.Foreign markets can be more volatile than the U.S. market. As a result, the Fund’s returns and net asset value may be affected by fluctuations in currency exchange rates or political or economic conditions in a particular country. In some foreign markets, there may not be protection against failure by other parties to complete transactions. It may not be possible for the Fund to repatriate capital, dividends, interest, and other income from a particular country or governmental entity. In addition, a market swing in one or more countries or regions where the Fund has invested a significant amount of its assets may have a greater effect on the Fund’s performance than it would in a more geographically diversified portfolio.
An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Performance information
The following information provides some indication of the risks of investing in the Fund by showing how the Fund’s performance has varied over time. Class D Shares of the Fund commenced operations on February 16, 2010, as a result of the restructuring of Class J Shares, the predecessor share class. The performance shown for Class D Shares for periods prior to February 16, 2010, reflects the performance of the Fund’s former Class J Shares, calculated using the fees and expenses in effect during the periods shown, net of any applicable fee and expense limitations or waivers. If Class D Shares of the Fund had been available during periods prior to February 16, 2010, the performance shown may have been different. The performance shown for the periods following the Fund’s commencement of Class D Shares reflects the fees and expenses of Class D Shares, net of any applicable fee and expense limitations or waivers.
The bar chart depicts the change in performance from year to year during the periods indicated. The table compares the Fund’s average annual returns for the periods indicated to a broad-based securities market index. All figures assume reinvestment of dividends and distributions. For certain periods, the Fund’s performance reflects the effect of expense waivers. Without the effect of these expense waivers, the performance shown would have been lower.
The Fund’s past performance (before and after taxes) does not necessarily indicate how it will perform in the future. Updated performance information is available at janushenderson.com/allfunds or by calling 1-800-525-3713.
24 | Janus Henderson Growth and Income Fund

Annual Total Returns for Class D Shares (calendar year-end)
Best Quarter:
2nd Quarter 2020
17.80%
Worst Quarter:
1st Quarter 2020
– 22.97%
Average Annual Total Returns (periods ended 12/31/22)
 
 
 
 
 
1 Year
5 Years
10 Years
Since
Inception
(5/15/91)
Class D Shares
 
 
 
 
Return Before Taxes
– 14.20%
8.72%
12.33%
10.59%
Return After Taxes on Distributions
– 15.50%
7.30%
10.90%
9.44%
Return After Taxes on Distributions and Sale of Fund Shares(1)
– 7.50%
6.74%
9.95%
8.99%
S&P 500® Index
(reflects no deduction for expenses, fees, or taxes)
– 18.11%
9.42%
12.56%
9.88%
(1) 
If the Fund incurs a loss, which generates a tax benefit, the Return After Taxes on Distributions and Sale of Fund Shares may exceed the Fund’s other return figures.
The Fund’s primary benchmark index is the S&P 500 Index. The index is described below.
The S&P 500 Index is a commonly recognized, market capitalization-weighted index of 500 widely held equity securities, designed to measure broad U.S. equity performance.
After-tax returns are calculated using distributions for the Fund’s Class D Shares for the periods following February 16, 2010; and for the Fund’s Class J Shares, the predecessor share class, for periods prior to February 16, 2010. If Class D Shares of the Fund had been available during these earlier periods, distributions may have been different and thus, after-tax returns may have been different from those shown. After-tax returns are calculated using the historically highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your individual tax situation and may differ from those shown in the preceding table. The after-tax return information shown above does not apply to Fund shares held through a tax-advantaged account, such as a 401(k) plan or an IRA.
25 | Janus Henderson Growth and Income Fund

Management
Investment Adviser:  Janus Henderson Investors US LLC
Portfolio Manager:  Jeremiah Buckley, CFA, is Executive Vice President and Portfolio Manager of the Fund, which he has managed or co-managed since July 2014.
Purchase and sale of Fund shares
Minimum Investment Requirements
 
To open a new regular Fund account
$2,500
To open a new regular Fund account with an automatic investment program of $50 per month
$100
To open a new UGMA/UTMA account, Coverdell Education Savings Account, or a retirement Fund account
 
• without an automatic investment program
$1,000
• with an automatic investment program of $50 per month
$100
To add to any existing type of Fund account without an automatic investment program
$50
You may generally purchase, exchange, or redeem Fund Shares on any business day by written request, wire transfer, telephone, and in most cases, online at janushenderson.com/individual. You may conduct transactions by mail (Janus Henderson, P.O. Box 219109, Kansas City, MO 64121-9109), or by telephone at 1-800-525-3713. Purchase, exchange, or redemption requests must be received in good order by the Fund or its agents prior to the close of the trading session of the New York Stock Exchange in order to receive that day’s net asset value. For additional information, refer to “To Open an Account or Buy Shares,” “To Exchange Shares,” and/or “To Sell Shares” in the Prospectus.
Tax information
The Fund’s distributions are taxable, and will be taxed as ordinary income or capital gains, unless you are investing through a tax-advantaged arrangement, such as a 401(k) plan or an individual retirement account (in which case you may be taxed upon withdrawal of your investment from such account).
Payments to broker-dealers and other financial intermediaries
With respect to share classes not offered in this Prospectus, the Fund or its distributor (or its affiliates) pay select broker-dealer firms or other financial intermediaries for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing a broker-dealer or other intermediary or a salesperson to recommend the Fund over another investment or to recommend one share class over another.
26 | Janus Henderson Growth and Income Fund

Fund summary
Ticker:
JNRFX
Class D Shares
Investment Objective
Janus Henderson Research Fund seeks long-term growth of capital.
Fees and Expenses of the Fund
This table describes the fees and expenses that you may pay if you buy, hold, and sell Shares of the Fund.
ANNUAL FUND OPERATING EXPENSES
(expenses that you pay each year as a percentage of the value of your investment)
 
Class D
Management Fees(1)
 
0.50%
Other Expenses
 
0.14%
Total Annual Fund Operating Expenses
 
0.64%
(1)
This fee may adjust up or down monthly based on the Fund’s performance relative to its benchmark index over the performance measurement period. For more information regarding performance-based advisory fees, refer to “Management Expenses” in the Fund’s Prospectus.
EXAMPLE:
The Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated, reinvest all dividends and distributions, and then redeem all of your Shares at the end of each period. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
 
1 Year
3 Years
5 Years
10 Years
Class D Shares
$ 65
$ 205
$ 357
$ 798
Portfolio Turnover: The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 32% of the average value of its portfolio.
Principal investment strategies
The Fund pursues its investment objective by investing primarily in common stocks selected for their growth potential. The Fund may invest in companies of any size, from larger, well-established companies to smaller, emerging growth companies.
The Adviser’s equity research analysts, overseen by the Portfolio Oversight Team led by the Adviser’s Director of Research Matthew Peron (the “Central Research Team”), select investments for the Fund that represent the Central Research Team’s high-conviction investment ideas in all market capitalizations and styles. The Central Research Team, comprised of sector specialists, conducts fundamental analysis with a focus on “bottom up” research, quantitative modeling, and valuation analysis. Using this research process, analysts rate their stocks based upon attractiveness. Stocks considered to be attractive may have all or some of the following characteristics: (i) good and preferably growing free cash flow, (ii) strong and defensible market position, (iii) healthy risk/return profile, (iv) exemplary governance, and (v) attractive valuation. Analysts bring their high-conviction ideas to their respective sector teams. Sector teams compare the appreciation and risk potential of each of the team’s high-conviction ideas and construct a sector portfolio that is intended to maximize the best risk-reward opportunities. The Central Research Team and Mr. Peron participate in the portfolio construction process as part of their oversight function. Although the Central Research Team may find high-conviction investment ideas anywhere in the world, the Central Research Team emphasizes investments in securities of U.S.-based issuers.
27 | Janus Henderson Research Fund

Positions may be sold when, among other things, there is no longer high conviction in the return potential of the investment, if the risk characteristics have caused a re-evaluation of the opportunity, or if the investment thesis for owning a position has changed. This may occur if the stock has appreciated and reflects the anticipated value, if another company represents a better risk-reward opportunity, or if the investment’s fundamental characteristics deteriorate. Securities may also be sold from the portfolio to rebalance sector weightings.
Mr. Peron oversees the investment process and is responsible for the day-to-day management of the Fund. Although the Fund’s exposure to certain sectors may be higher than to others, it is expected that the Fund will be broadly diversified among a variety of sectors. The Fund intends to be fully invested under normal circumstances. However, under unusual circumstances, if the Central Research Team does not have high conviction in enough investment opportunities, the Fund’s uninvested assets may be held in cash or similar instruments.
The Fund may seek to earn additional income through lending its securities to certain qualified broker-dealers and institutions on a short-term or long-term basis, in an amount equal to up to one-third of its total assets as determined at the time of the loan origination.
Principal investment risks
The biggest risk is that the Fund’s returns will vary, and you could lose money. The Fund is designed for long-term investors seeking an equity portfolio, including common stocks. Common stocks tend to be more volatile than many other investment choices. The principal risks associated with investing in the Fund are set forth below.
Market Risk.The value of the Fund’s portfolio may decrease due to short-term market movements and over more prolonged market downturns. As a result, the Fund’s net asset value may fluctuate and it may be more difficult to value or sell the Fund’s holdings. Market risk may affect a single issuer, industry, economic sector, or the market as a whole. Market risk may be magnified if certain social, political, economic, and other conditions and events (such as terrorism, conflicts, including related sanctions, social unrest, natural disasters, epidemics and pandemics, including COVID-19) adversely interrupt the global economy and financial markets. It is important to understand that the value of your investment may fall, sometimes sharply, in response to changes in the market, and you could lose money.
Growth Securities Risk.Securities of companies perceived to be “growth” companies may be more volatile than other stocks and may involve special risks. If the investment personnel’s perception of a company’s growth potential is not realized, the securities purchased may not perform as expected, reducing the Fund’s returns. In addition, because different types of stocks tend to shift in and out of favor depending on market and economic conditions, “growth” stocks may perform differently from the market as a whole and other types of securities. The Fund’s Central Research Team compares and broadly matches the Fund’s sector weights to those of a growth-based index. If growth stocks are out of favor, sectors that are larger in a growth index may underperform, leading to Fund underperformance relative to indices less biased toward growth stocks.
Industry and Sector Risk.Although the Fund does not concentrate its investments in specific industries or sectors, it may have a significant portion of its assets invested in securities of companies conducting similar business, or business within the same economic sector. Companies in the same industry or economic sector may be similarly affected by economic or market events, making the Fund more vulnerable to unfavorable developments than funds that invest more broadly. As the Fund’s portfolio becomes more concentrated, the Fund is less able to spread risk and potentially reduce the risk of loss and volatility. In addition, the Fund may be overweight or underweight in certain industries or sectors relative to its benchmark index, which may cause the Fund’s performance to be more or less sensitive to developments affecting those sectors.
Mid-Sized Companies Risk.Investments in securities issued by mid-sized companies may involve greater risks than are customarily associated with larger, more established companies. For example, while mid-sized companies may realize more substantial growth than larger or more established issuers, they may also suffer more significant losses as a result of their narrow product lines, limited operating history, greater exposure to competitive threats, limited financial resources, limited trading markets, and the potential lack of management depth. Securities issued by mid-sized companies tend to be more volatile than securities issued by larger or more established companies and may underperform as compared to the securities of larger or more established companies. These holdings are also subject to wider price fluctuations and tend to be less liquid than stocks of larger or more established companies, which could have a significant adverse effect on the Fund’s returns, especially as market conditions change.
28 | Janus Henderson Research Fund

Portfolio Management Risk.The Fund is an actively managed investment portfolio and is therefore subject to the risk that the investment strategies and research process employed for the Fund may fail to produce the intended results. The Fund may underperform its benchmark index or other mutual funds with similar investment objectives.
Securities Lending Risk.There is the risk that when portfolio securities are lent, the securities may not be returned on a timely basis, and the Fund may experience delays and costs in recovering the security or gaining access to the collateral provided to the Fund to collateralize the loan. If the Fund is unable to recover a security on loan, the Fund may use the collateral to purchase replacement securities in the market. There is a risk that the value of the collateral could decrease below the cost of the replacement security by the time the replacement investment is made, resulting in a loss to the Fund.
An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Performance information
The following information provides some indication of the risks of investing in the Fund by showing how the Fund’s performance has varied over time. Class D Shares of the Fund commenced operations on February 16, 2010, as a result of the restructuring of Class J Shares, the predecessor share class. The performance shown for Class D Shares for periods prior to February 16, 2010, reflects the performance of the Fund’s former Class J Shares, calculated using the fees and expenses in effect during the periods shown, net of any applicable fee and expense limitations or waivers. If Class D Shares of the Fund had been available during periods prior to February 16, 2010, the performance shown may have been different. The performance shown for the periods following the Fund’s commencement of Class D Shares reflects the fees and expenses of Class D Shares, net of any applicable fee and expense limitations or waivers.
The bar chart depicts the change in performance from year to year during the periods indicated. The table compares the Fund’s average annual returns for the periods indicated to a broad-based securities market index, as well as to one or more supplemental indices that have investment characteristics similar to those of the Fund. All figures assume reinvestment of dividends and distributions. For certain periods, the Fund’s performance reflects the effect of expense waivers. Without the effect of these expense waivers, the performance shown would have been lower.
The Fund’s past performance (before and after taxes) does not necessarily indicate how it will perform in the future. Updated performance information is available at janushenderson.com/allfunds or by calling 1-800-525-3713.
Annual Total Returns for Class D Shares (calendar year-end)
Best Quarter:
2nd Quarter 2020
26.75%
Worst Quarter:
2nd Quarter 2022
– 22.31%
29 | Janus Henderson Research Fund

Average Annual Total Returns (periods ended 12/31/22)
 
 
 
 
 
1 Year
5 Years
10 Years
Since
Inception
(5/3/93)
Class D Shares
 
 
 
 
Return Before Taxes
– 29.96%
8.07%
11.87%
10.71%
Return After Taxes on Distributions
– 30.04%
6.27%
9.96%
9.26%
Return After Taxes on Distributions and Sale of Fund Shares(1)
– 17.69%
6.36%
9.53%
8.92%
Russell 1000® Growth Index
(reflects no deduction for expenses, fees, or taxes)
– 29.14%
10.96%
14.10%
9.65%
S&P 500® Index
(reflects no deduction for expenses, fees, or taxes)
– 18.11%
9.42%
12.56%
9.67%
(1) 
If the Fund incurs a loss, which generates a tax benefit, the Return After Taxes on Distributions and Sale of Fund Shares may exceed the Fund’s other return figures.
The Fund’s primary benchmark index is the Russell 1000 Growth Index. The Fund also compares its performance to the S&P 500 Index. The indices are described below.
The Russell 1000 Growth Index measures the performance of those Russell 1000 companies with higher price-to-book ratios and higher forecasted growth values.
The S&P 500 Index is a commonly recognized, market capitalization-weighted index of 500 widely held equity securities, designed to measure broad U.S. equity performance.
After-tax returns are calculated using distributions for the Fund’s Class D Shares for the periods following February 16, 2010; and for the Fund’s Class J Shares, the predecessor share class, for periods prior to February 16, 2010. If Class D Shares of the Fund had been available during these earlier periods, distributions may have been different and thus, after-tax returns may have been different from those shown. After-tax returns are calculated using the historically highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your individual tax situation and may differ from those shown in the preceding table. The after-tax return information shown above does not apply to Fund shares held through a tax-advantaged account, such as a 401(k) plan or an IRA.
Management
Investment Adviser:  Janus Henderson Investors US LLC
Portfolio Management:  Matthew Peron, the Adviser’s Director of Research and Executive Vice President of the Fund, provides general oversight of the Central Research Team and has done so since April 2020.
Purchase and sale of Fund shares
Minimum Investment Requirements
 
To open a new regular Fund account
$2,500
To open a new regular Fund account with an automatic investment program of $50 per month
$100
To open a new UGMA/UTMA account, Coverdell Education Savings Account, or a retirement Fund account
 
• without an automatic investment program
$1,000
• with an automatic investment program of $50 per month
$100
To add to any existing type of Fund account without an automatic investment program
$50
You may generally purchase, exchange, or redeem Fund Shares on any business day by written request, wire transfer, telephone, and in most cases, online at janushenderson.com/individual. You may conduct transactions by mail (Janus Henderson, P.O. Box 219109, Kansas City, MO 64121-9109), or by telephone at 1-800-525-3713. Purchase, exchange, or redemption requests must be received in good order by the Fund or its agents prior to the close of the trading session of the New York Stock Exchange in order to receive that day’s net asset value. For additional information, refer to “To Open an Account or Buy Shares,” “To Exchange Shares,” and/or “To Sell Shares” in the Prospectus.
30 | Janus Henderson Research Fund

Tax information
The Fund’s distributions are taxable, and will be taxed as ordinary income or capital gains, unless you are investing through a tax-advantaged arrangement, such as a 401(k) plan or an individual retirement account (in which case you may be taxed upon withdrawal of your investment from such account).
Payments to broker-dealers and other financial intermediaries
With respect to share classes not offered in this Prospectus, the Fund or its distributor (or its affiliates) pay select broker-dealer firms or other financial intermediaries for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing a broker-dealer or other intermediary or a salesperson to recommend the Fund over another investment or to recommend one share class over another.
31 | Janus Henderson Research Fund

Fund summary
Ticker:
JANIX
Class D Shares
Investment Objective
Janus Henderson Triton Fund seeks long-term growth of capital.
Fees and Expenses of the Fund
This table describes the fees and expenses that you may pay if you buy, hold, and sell Shares of the Fund.
ANNUAL FUND OPERATING EXPENSES
(expenses that you pay each year as a percentage of the value of your investment)
 
Class D
Management Fees
 
0.64%
Other Expenses
 
0.15%
Total Annual Fund Operating Expenses
 
0.79%
EXAMPLE:
The Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated, reinvest all dividends and distributions, and then redeem all of your Shares at the end of each period. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
 
1 Year
3 Years
5 Years
10 Years
Class D Shares
$ 81
$ 252
$ 439
$ 978
Portfolio Turnover: The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 8% of the average value of its portfolio.
Principal investment strategies
The Fund pursues its investment objective by investing at least 50% of its equity assets in small- and medium-sized companies. The Fund may also invest in larger companies with strong growth potential. Small- and medium-sized companies are defined by the portfolio managers as those companies whose market capitalization falls within the range of companies in the Russell 2500tm Growth Index at the time of initial purchase. Market capitalization is a commonly used measure of the size and value of a company. The market capitalizations within the index will vary, but as of September 30, 2022, they ranged from approximately $4 million to $18.09 billion. The Fund may invest in shares of companies through initial public offerings and secondary offerings.
The portfolio managers apply a “bottom up” approach in choosing investments. In other words, the portfolio managers look at companies one at a time to determine if a company is an attractive investment opportunity and if it is consistent with the Fund’s investment policies. Factors that the portfolio managers may consider in their fundamental analysis include a company’s valuation, operating margins, or returns on capital. The portfolio managers will generally consider selling a position when, among other things, there is a deterioration in a company’s competitive position or financials, a company reaches or exceeds its targeted value, or if a company’s market capitalization exceeds the top of the small- and medium-sized range.
The Fund may also invest in foreign securities, which may include investments in emerging markets.
32 | Janus Henderson Triton Fund

The Fund may seek to earn additional income through lending its securities to certain qualified broker-dealers and institutions on a short-term or long-term basis, in an amount equal to up to one-third of its total assets as determined at the time of the loan origination.
Principal investment risks
The biggest risk is that the Fund’s returns will vary, and you could lose money. The Fund is designed for long-term investors seeking an equity portfolio, including common stocks. Common stocks tend to be more volatile than many other investment choices. The principal risks associated with investing in the Fund are set forth below.
Market Risk.The value of the Fund’s portfolio may decrease due to short-term market movements and over more prolonged market downturns. As a result, the Fund’s net asset value may fluctuate and it may be more difficult to value or sell the Fund’s holdings. Market risk may affect a single issuer, industry, economic sector, or the market as a whole. Market risk may be magnified if certain social, political, economic, and other conditions and events (such as terrorism, conflicts, including related sanctions, social unrest, natural disasters, epidemics and pandemics, including COVID-19) adversely interrupt the global economy and financial markets. It is important to understand that the value of your investment may fall, sometimes sharply, in response to changes in the market, and you could lose money.
Portfolio Management Risk.The Fund is an actively managed investment portfolio and is therefore subject to the risk that the investment strategies and research process employed for the Fund may fail to produce the intended results. The Fund may underperform its benchmark index or other mutual funds with similar investment objectives.
Small- and Mid-Sized Companies Risk.Investments in securities issued by small- and mid-sized companies, which can include smaller, start-up companies offering emerging products or services, may involve greater risks than are customarily associated with larger, more established companies. For example, while small- and mid-sized companies may realize more substantial growth than larger or more established issuers, they may also suffer more significant losses as a result of their narrow product lines, limited operating history, greater exposure to competitive threats, limited financial resources, limited trading markets, and the potential lack of management depth. Securities issued by small- and mid-sized companies tend to be more volatile and somewhat more speculative than securities issued by larger or more established companies and may underperform as compared to the securities of larger or more established companies. These holdings are also subject to wider price fluctuations and tend to be less liquid than stocks of larger or more established companies, which could have a significant adverse effect on the Fund’s returns, especially as market conditions change.
Growth Securities Risk.Securities of companies perceived to be “growth” companies may be more volatile than other stocks and may involve special risks. If the portfolio managers’ perception of a company’s growth potential is not realized, the securities purchased may not perform as expected, reducing the Fund’s returns. In addition, because different types of stocks tend to shift in and out of favor depending on market and economic conditions, “growth” stocks may perform differently from the market as a whole and other types of securities.
Industry and Sector Risk.Although the Fund does not concentrate its investments in specific industries or sectors, it may have a significant portion of its assets invested in securities of companies conducting similar business, or business within the same economic sector. Companies in the same industry or economic sector may be similarly affected by economic or market events, making the Fund more vulnerable to unfavorable developments than funds that invest more broadly. As the Fund’s portfolio becomes more concentrated, the Fund is less able to spread risk and potentially reduce the risk of loss and volatility. In addition, the Fund may be overweight or underweight in certain industries or sectors relative to its benchmark index, which may cause the Fund’s performance to be more or less sensitive to developments affecting those sectors.
Initial Public Offering and Secondary Offering Risk.Initial public offerings (“IPOs”) and secondary offering shares frequently are volatile in price due to the absence of a prior public market, the small number of shares available for trading, and limited information about the issuer. Therefore, the Fund may hold IPO and secondary offering shares for a very short period of time. This may increase the portfolio turnover rate of the Fund and may lead to increased expenses for the Fund, such as commissions and transaction costs. Although IPOs and secondary offerings may have had a positive impact on the Fund’s performance in the past, there can be no assurance that the Fund will identify favorable IPO and secondary offering investment opportunities in the future. In addition, as the Fund increases in size, the impact of IPOs and secondary offerings on the Fund’s performance will generally decrease.
33 | Janus Henderson Triton Fund

Foreign Exposure Risk.Foreign markets, including emerging markets, can be more volatile than the U.S. market. As a result, the Fund’s returns and net asset value may be affected by fluctuations in currency exchange rates or political or economic conditions in a particular country. In some foreign markets, there may not be protection against failure by other parties to complete transactions. It may not be possible for the Fund to repatriate capital, dividends, interest, and other income from a particular country or governmental entity. In addition, a market swing in one or more countries or regions where the Fund has invested a significant amount of its assets may have a greater effect on the Fund’s performance than it would in a more geographically diversified portfolio. The Fund’s investments in emerging market countries, if any, may involve risks greater than, or in addition to, the risks of investing in more developed countries.
Securities Lending Risk.There is the risk that when portfolio securities are lent, the securities may not be returned on a timely basis, and the Fund may experience delays and costs in recovering the security or gaining access to the collateral provided to the Fund to collateralize the loan. If the Fund is unable to recover a security on loan, the Fund may use the collateral to purchase replacement securities in the market. There is a risk that the value of the collateral could decrease below the cost of the replacement security by the time the replacement investment is made, resulting in a loss to the Fund.
An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Performance information
The following information provides some indication of the risks of investing in the Fund by showing how the Fund’s performance has varied over time. Class D Shares of the Fund commenced operations on February 16, 2010, as a result of the restructuring of Class J Shares, the predecessor share class. The performance shown for Class D Shares for periods prior to February 16, 2010, reflects the performance of the Fund’s former Class J Shares, calculated using the fees and expenses in effect during the periods shown, net of any applicable fee and expense limitations or waivers. If Class D Shares of the Fund had been available during periods prior to February 16, 2010, the performance shown may have been different. The performance shown for the periods following the Fund’s commencement of Class D Shares reflects the fees and expenses of Class D Shares, net of any applicable fee and expense limitations or waivers.
The bar chart depicts the change in performance from year to year during the periods indicated. The table compares the Fund’s average annual returns for the periods indicated to a broad-based securities market index, as well as to one or more supplemental indices that have investment characteristics similar to those of the Fund. All figures assume reinvestment of dividends and distributions. For certain periods, the Fund’s performance reflects the effect of expense waivers. Without the effect of these expense waivers, the performance shown would have been lower.
The Fund’s past performance (before and after taxes) does not necessarily indicate how it will perform in the future. Updated performance information is available at janushenderson.com/allfunds or by calling 1-800-525-3713.
Annual Total Returns for Class D Shares (calendar year-end)
Best Quarter:
2nd Quarter 2020
29.44%
Worst Quarter:
1st Quarter 2020
– 27.82%
34 | Janus Henderson Triton Fund

Average Annual Total Returns (periods ended 12/31/22)
 
 
 
 
 
1 Year
5 Years
10 Years
Since
Inception
(2/25/05)
Class D Shares
 
 
 
 
Return Before Taxes
– 23.68%
5.04%
10.52%
10.87%
Return After Taxes on Distributions
– 24.76%
3.00%
8.69%
9.48%
Return After Taxes on Distributions and Sale of Fund Shares(1)
– 13.26%
3.94%
8.46%
9.09%
Russell 2500TM Growth Index
(reflects no deduction for expenses, fees, or taxes)
– 26.21%
5.97%
10.62%
8.80%
Russell 2000® Growth Index
(reflects no deduction for expenses, fees, or taxes)
– 26.36%
3.51%
9.20%
7.63%
(1) 
If the Fund incurs a loss, which generates a tax benefit, the Return After Taxes on Distributions and Sale of Fund Shares may exceed the Fund’s other return figures.
The Fund’s primary benchmark index is the Russell 2500 Growth Index. The Fund also compares its performance to the Russell 2000 Growth Index. The indices are described below.
The Russell 2500 Growth Index measures the performance of those Russell 2500 companies with higher price-to-book ratios and higher forecasted growth values.
The Russell 2000 Growth Index measures the performance of those Russell 2000 companies with higher price-to-book ratios and higher forecasted growth values.
After-tax returns are calculated using distributions for the Fund’s Class D Shares for the periods following February 16, 2010; and for the Fund’s Class J Shares, the predecessor share class, for periods prior to February 16, 2010. If Class D Shares of the Fund had been available during these earlier periods, distributions may have been different and thus, after-tax returns may have been different from those shown. After-tax returns are calculated using the historically highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your individual tax situation and may differ from those shown in the preceding table. The after-tax return information shown above does not apply to Fund shares held through a tax-advantaged account, such as a 401(k) plan or an IRA.
Management
Investment Adviser:  Janus Henderson Investors US LLC
Portfolio Managers:  Jonathan D. Coleman, CFA, is Executive Vice President and Lead Portfolio Manager of the Fund, which he has managed or co-managed since May 2013. Scott Stutzman, CFA, is Executive Vice President and Co-Portfolio Manager of the Fund, which he has co-managed since July 2016.
Purchase and sale of Fund shares
Minimum Investment Requirements
 
To open a new regular Fund account
$2,500
To open a new regular Fund account with an automatic investment program of $50 per month
$100
To open a new UGMA/UTMA account, Coverdell Education Savings Account, or a retirement Fund account
 
• without an automatic investment program
$1,000
• with an automatic investment program of $50 per month
$100
To add to any existing type of Fund account without an automatic investment program
$50
You may generally purchase, exchange, or redeem Fund Shares on any business day by written request, wire transfer, telephone, and in most cases, online at janushenderson.com/individual. You may conduct transactions by mail (Janus Henderson, P.O. Box 219109, Kansas City, MO 64121-9109), or by telephone at 1-800-525-3713. Purchase, exchange, or redemption requests must be received in good order by the Fund or its agents prior to the close of the trading session of
35 | Janus Henderson Triton Fund

the New York Stock Exchange in order to receive that day’s net asset value. For additional information, refer to “To Open an Account or Buy Shares,” “To Exchange Shares,” and/or “To Sell Shares” in the Prospectus.
Tax information
The Fund’s distributions are taxable, and will be taxed as ordinary income or capital gains, unless you are investing through a tax-advantaged arrangement, such as a 401(k) plan or an individual retirement account (in which case you may be taxed upon withdrawal of your investment from such account).
Payments to broker-dealers and other financial intermediaries
With respect to share classes not offered in this Prospectus, the Fund or its distributor (or its affiliates) pay select broker-dealer firms or other financial intermediaries for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing a broker-dealer or other intermediary or a salesperson to recommend the Fund over another investment or to recommend one share class over another.
36 | Janus Henderson Triton Fund

Fund summary
Ticker:
JANVX
Class D Shares
Investment Objective
Janus Henderson Venture Fund seeks capital appreciation.
Fees and Expenses of the Fund
This table describes the fees and expenses that you may pay if you buy, hold, and sell Shares of the Fund.
ANNUAL FUND OPERATING EXPENSES
(expenses that you pay each year as a percentage of the value of your investment)
 
Class D
Management Fees
 
0.64%
Other Expenses
 
0.15%
Total Annual Fund Operating Expenses
 
0.79%
EXAMPLE:
The Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated, reinvest all dividends and distributions, and then redeem all of your Shares at the end of each period. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
 
1 Year
3 Years
5 Years
10 Years
Class D Shares
$ 81
$ 252
$ 439
$ 978
Portfolio Turnover: The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 14% of the average value of its portfolio.
Principal investment strategies
The Fund pursues its investment objective by investing at least 50% of its equity assets in small-sized companies. The Fund may also invest in larger companies with strong growth potential. Small-sized companies are defined by the portfolio managers as those companies whose market capitalization falls within the range of companies in the Russell 2000® Growth Index at the time of initial purchase. Market capitalization is a commonly used measure of the size and value of a company. The market capitalizations within the index will vary, but as of September 30, 2022, they ranged from approximately $4 million to $9.82 billion. The Fund may invest in shares of companies through initial public offerings and secondary offerings.
The portfolio managers apply a “bottom up” approach in choosing investments. In other words, the portfolio managers look at companies one at a time to determine if a company is an attractive investment opportunity and if it is consistent with the Fund’s investment policies. Factors that the portfolio managers may consider in their fundamental analysis include a company’s valuation, operating margins, or returns on capital. The portfolio managers will generally consider selling a position when, among other things, there is a deterioration in a company’s competitive position or financials, a company reaches or exceeds its targeted value, or if a company’s market capitalization exceeds the top of the small-sized range.
The Fund may also invest in foreign securities, which may include investments in emerging markets.
The Fund may seek to earn additional income through lending its securities to certain qualified broker-dealers and institutions on a short-term or long-term basis, in an amount equal to up to one-third of its total assets as determined at the time of the loan origination.
37 | Janus Henderson Venture Fund

Principal investment risks
The biggest risk is that the Fund’s returns will vary, and you could lose money. The Fund is designed for long-term investors seeking an equity portfolio, including common stocks. Common stocks tend to be more volatile than many other investment choices. The principal risks associated with investing in the Fund are set forth below.
Market Risk.The value of the Fund’s portfolio may decrease due to short-term market movements and over more prolonged market downturns. As a result, the Fund’s net asset value may fluctuate and it may be more difficult to value or sell the Fund’s holdings. Market risk may affect a single issuer, industry, economic sector, or the market as a whole. Market risk may be magnified if certain social, political, economic, and other conditions and events (such as terrorism, conflicts, including related sanctions, social unrest, natural disasters, epidemics and pandemics, including COVID-19) adversely interrupt the global economy and financial markets. It is important to understand that the value of your investment may fall, sometimes sharply, in response to changes in the market, and you could lose money.
Portfolio Management Risk.The Fund is an actively managed investment portfolio and is therefore subject to the risk that the investment strategies and research process employed for the Fund may fail to produce the intended results. The Fund may underperform its benchmark index or other mutual funds with similar investment objectives.
Small-Sized Companies Risk.Investments in securities issued by small-sized companies, which can include smaller, start-up companies offering emerging products or services, may involve greater risks than are customarily associated with larger, more established companies. For example, while small-sized companies may realize more substantial growth than larger or more established issuers, they may also suffer more significant losses as a result of their narrow product lines, limited operating history, greater exposure to competitive threats, limited financial resources, limited trading markets, and the potential lack of management depth. Securities issued by small-sized companies tend to be more volatile and somewhat more speculative than securities issued by larger or more established companies and may underperform as compared to the securities of larger or more established companies. These holdings are also subject to wider price fluctuations and tend to be less liquid than stocks of larger or more established companies, which could have a significant adverse effect on the Fund’s returns, especially as market conditions change.
Growth Securities Risk.Securities of companies perceived to be “growth” companies may be more volatile than other stocks and may involve special risks. If the portfolio managers’ perception of a company’s growth potential is not realized, the securities purchased may not perform as expected, reducing the Fund’s returns. In addition, because different types of stocks tend to shift in and out of favor depending on market and economic conditions, “growth” stocks may perform differently from the market as a whole and other types of securities.
Industry and Sector Risk.Although the Fund does not concentrate its investments in specific industries or sectors, it may have a significant portion of its assets invested in securities of companies conducting similar business, or business within the same economic sector. Companies in the same industry or economic sector may be similarly affected by economic or market events, making the Fund more vulnerable to unfavorable developments than funds that invest more broadly. As the Fund’s portfolio becomes more concentrated, the Fund is less able to spread risk and potentially reduce the risk of loss and volatility. In addition, the Fund may be overweight or underweight in certain industries or sectors relative to its benchmark index, which may cause the Fund’s performance to be more or less sensitive to developments affecting those sectors.
Initial Public Offering and Secondary Offering Risk.Initial public offerings (“IPOs”) and secondary offering shares frequently are volatile in price due to the absence of a prior public market, the small number of shares available for trading, and limited information about the issuer. Therefore, the Fund may hold IPO and secondary offering shares for a very short period of time. This may increase the portfolio turnover rate of the Fund and may lead to increased expenses for the Fund, such as commissions and transaction costs. Although IPOs and secondary offerings may have had a positive impact on the Fund’s performance in the past, there can be no assurance that the Fund will identify favorable IPO and secondary offering investment opportunities in the future. In addition, as the Fund increases in size, the impact of IPOs and secondary offerings on the Fund’s performance will generally decrease.
Foreign Exposure Risk.Foreign markets, including emerging markets, can be more volatile than the U.S. market. As a result, the Fund’s returns and net asset value may be affected by fluctuations in currency exchange rates or political or economic conditions in a particular country. In some foreign markets, there may not be protection against failure by other parties to complete transactions. It may not be possible for the Fund to repatriate capital, dividends, interest, and other income from a particular country or governmental entity. In addition, a market swing in one or more countries or regions where the Fund
38 | Janus Henderson Venture Fund

has invested a significant amount of its assets may have a greater effect on the Fund’s performance than it would in a more geographically diversified portfolio. The Fund’s investments in emerging market countries, if any, may involve risks greater than, or in addition to, the risks of investing in more developed countries.
Securities Lending Risk.There is the risk that when portfolio securities are lent, the securities may not be returned on a timely basis, and the Fund may experience delays and costs in recovering the security or gaining access to the collateral provided to the Fund to collateralize the loan. If the Fund is unable to recover a security on loan, the Fund may use the collateral to purchase replacement securities in the market. There is a risk that the value of the collateral could decrease below the cost of the replacement security by the time the replacement investment is made, resulting in a loss to the Fund.
An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Performance information
The following information provides some indication of the risks of investing in the Fund by showing how the Fund’s performance has varied over time. Class D Shares of the Fund commenced operations on February 16, 2010, as a result of the restructuring of Class J Shares, the predecessor share class. The performance shown for Class D Shares for periods prior to February 16, 2010, reflects the performance of the Fund’s former Class J Shares, calculated using the fees and expenses in effect during the periods shown, net of any applicable fee and expense limitations or waivers. If Class D Shares of the Fund had been available during periods prior to February 16, 2010, the performance shown may have been different. The performance shown for the periods following the Fund’s commencement of Class D Shares reflects the fees and expenses of Class D Shares, net of any applicable fee and expense limitations or waivers.
The bar chart depicts the change in performance from year to year during the periods indicated. The table compares the Fund’s average annual returns for the periods indicated to a broad-based securities market index, as well as to one or more supplemental indices that have investment characteristics similar to those of the Fund. All figures assume reinvestment of dividends and distributions. For certain periods, the Fund’s performance reflects the effect of expense waivers. Without the effect of these expense waivers, the performance shown would have been lower.
The Fund’s past performance (before and after taxes) does not necessarily indicate how it will perform in the future. Updated performance information is available at janushenderson.com/allfunds or by calling 1-800-525-3713.
Annual Total Returns for Class D Shares (calendar year-end)
Best Quarter:
2nd Quarter 2020
29.70%
Worst Quarter:
1st Quarter 2020
– 25.80%
39 | Janus Henderson Venture Fund

Average Annual Total Returns (periods ended 12/31/22)
 
 
 
 
 
1 Year
5 Years
10 Years
Since
Inception
(4/30/85)
Class D Shares
 
 
 
 
Return Before Taxes
– 24.17%
5.60%
10.51%
11.41%
Return After Taxes on Distributions
– 24.94%
3.78%
8.53%
9.30%
Return After Taxes on Distributions and Sale of Fund Shares(1)
– 13.77%
4.31%
8.25%
9.19%
Russell 2000® Growth Index
(reflects no deduction for expenses, fees, or taxes)
– 26.36%
3.51%
9.20%
7.75%
Russell 2000® Index
(reflects no deduction for expenses, fees, or taxes)
– 20.44%
4.13%
9.01%
9.16%
(1) 
If the Fund incurs a loss, which generates a tax benefit, the Return After Taxes on Distributions and Sale of Fund Shares may exceed the Fund’s other return figures.
The Fund’s primary benchmark index is the Russell 2000 Growth Index. The Fund also compares its performance to the Russell 2000 Index. The indices are described below.
The Russell 2000 Growth Index measures the performance of those Russell 2000 companies with higher price-to-book ratios and higher forecasted growth values.
The Russell 2000 Index measures the performance of the 2,000 smallest companies in the Russell 3000® Index.
After-tax returns are calculated using distributions for the Fund’s Class D Shares for the periods following February 16, 2010; and for the Fund’s Class J Shares, the predecessor share class, for periods prior to February 16, 2010. If Class D Shares of the Fund had been available during these earlier periods, distributions may have been different and thus, after-tax returns may have been different from those shown. After-tax returns are calculated using the historically highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your individual tax situation and may differ from those shown in the preceding table. The after-tax return information shown above does not apply to Fund shares held through a tax-advantaged account, such as a 401(k) plan or an IRA.
Management
Investment Adviser:  Janus Henderson Investors US LLC
Portfolio Managers:  Jonathan D. Coleman, CFA, is Executive Vice President and Lead Portfolio Manager of the Fund, which he has managed or co-managed since May 2013. Scott Stutzman, CFA, is Executive Vice President and Co-Portfolio Manager of the Fund, which he has co-managed since July 2016.
Purchase and sale of Fund shares
Minimum Investment Requirements
 
To open a new regular Fund account
$2,500
To open a new regular Fund account with an automatic investment program of $50 per month
$100
To open a new UGMA/UTMA account, Coverdell Education Savings Account, or a retirement Fund account
 
• without an automatic investment program
$1,000
• with an automatic investment program of $50 per month
$100
To add to any existing type of Fund account without an automatic investment program
$50
You may generally purchase, exchange, or redeem Fund Shares on any business day by written request, wire transfer, telephone, and in most cases, online at janushenderson.com/individual. You may conduct transactions by mail (Janus Henderson, P.O. Box 219109, Kansas City, MO 64121-9109), or by telephone at 1-800-525-3713. Purchase, exchange, or redemption requests must be received in good order by the Fund or its agents prior to the close of the trading session of the New York Stock Exchange in order to receive that day’s net asset value. For additional information, refer to “To Open an Account or Buy Shares,” “To Exchange Shares,” and/or “To Sell Shares” in the Prospectus.
40 | Janus Henderson Venture Fund

Tax information
The Fund’s distributions are taxable, and will be taxed as ordinary income or capital gains, unless you are investing through a tax-advantaged arrangement, such as a 401(k) plan or an individual retirement account (in which case you may be taxed upon withdrawal of your investment from such account).
Payments to broker-dealers and other financial intermediaries
With respect to share classes not offered in this Prospectus, the Fund or its distributor (or its affiliates) pay select broker-dealer firms or other financial intermediaries for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing a broker-dealer or other intermediary or a salesperson to recommend the Fund over another investment or to recommend one share class over another.
41 | Janus Henderson Venture Fund

Additional information about the Funds
Please refer to the following important information when reviewing the “Fees and Expenses of the Fund” table in each Fund Summary of the Prospectus. The fees and expenses shown were determined based on average net assets as of the fiscal year ended September 30, 2022.
“Annual Fund Operating Expenses” are paid out of a Fund’s assets and include fees for portfolio management and administrative services, including recordkeeping, accounting, and other shareholder services, as well as reimbursement to the Adviser of its out-of-pocket costs for services as administrator. You do not pay these fees directly but, as the Example in each Fund Summary shows, these costs are borne indirectly by all shareholders.
The “Management Fee” is the investment advisory fee rate paid by each Fund to the Adviser. Janus Henderson Contrarian Fund, Janus Henderson Forty Fund, and Janus Henderson Research Fund each pay an investment advisory fee rate that adjusts up or down by a variable rate of up to 0.15% (assuming constant assets) on a monthly basis based upon the Fund’s performance relative to its benchmark index during a measurement period. This base fee rate, prior to any performance adjustment, is 0.64% for each of Janus Henderson Contrarian Fund, Janus Henderson Forty Fund, and Janus Henderson Research Fund. Refer to “Management Expenses” in this Prospectus for additional information with further description in the Statement of Additional Information (“SAI”).
“Other Expenses”
°
include an administrative services fee based on the average daily net assets of Class D Shares for shareholder services provided by Janus Henderson Services US LLC (the “Transfer Agent”), the Funds’ transfer agent, as detailed below.
Average Daily Net Assets of Class D Shares of the Janus Henderson funds
Administrative Services Fee
Under $40 billion
0.12%
$40 billion - $49.9 billion
0.10%
Over $49.9 billion
0.08%
°
include acquired fund fees and expenses, which are indirect expenses a Fund may incur as a result of investing in shares of an underlying fund, to the extent such expenses are less than 0.01%. “Acquired Fund” refers to any underlying fund (including, but not limited to, exchange-traded funds) in which a fund invests or has invested during the period. To the extent that a Fund invests in Acquired Funds, the Fund’s “Total Annual Fund Operating Expenses” may not correlate to the “Ratio of gross expenses to average net assets” presented in the Financial Highlights tables because that ratio includes only the direct operating expenses incurred by the Fund, not the indirect costs of investing in Acquired Funds. Such amounts are less than 0.01%.
°
may include reimbursement to the Transfer Agent of its out-of-pocket costs for arranging for the provision by third parties of certain servicing to shareholders.
°
include custodian fees and expenses, legal and auditing fees, printing and mailing costs of sending reports and other information to existing shareholders, and Independent Trustees’ fees and expenses.
The Adviser has contractually agreed to waive and/or reimburse each Fund’s “Total Annual Fund Operating Expenses” to certain limits for at least a one-year period commencing on January 27, 2023. The expense limits are described in the “Management Expenses” section of this Prospectus. Because a fee waiver will have a positive effect upon a fund’s performance, a fund that pays a performance-based investment advisory fee may experience a performance adjustment that is considered favorable to the Adviser as a result of a fee waiver that is in place during the period when the performance adjustment applies.
All expenses in a Fund’s “Fees and Expenses of the Fund” table are shown without the effect of expense offset arrangements. Pursuant to such arrangements, credits realized as a result of uninvested cash balances are used to reduce custodian and transfer agent expenses.
The Funds’ Board of Trustees (“Trustees”) may change each Fund’s investment objective or non-fundamental principal investment strategies without a shareholder vote. A Fund will notify you in writing at least 60 days before making any such change it considers material. To the extent that a Fund has an 80% investment policy, the Fund will provide shareholders with at least 60 days’ notice prior to changing this policy. If there is a material change to a Fund’s investment objective or
42 | Janus Investment Fund

principal investment strategies, you should consider whether the Fund remains an appropriate investment for you. There is no guarantee that a Fund will achieve its investment objective.
Unless otherwise stated, the following section provides additional information about the investment strategies and general policies that are summarized in the Fund Summary sections, including the types of securities each Fund may invest in when pursuing its investment objective. This section also describes investment strategies and policies that the Funds may use to a lesser extent. These non-principal investment strategies and policies may become more important in the future since a Fund’s composition can change over time. Except for the Funds’ policies with respect to illiquid investments, borrowing, and derivatives use, the percentage limitations included in these policies and elsewhere in this Prospectus and/or the SAI normally apply only at the time of purchase of a security. So, for example, if a Fund exceeds a limit, other than illiquid investments, borrowing, and derivatives use, as a result of market fluctuations or the sale of other securities, it will not be required to dispose of any securities. The “Glossary of Investment Terms” includes descriptions of investment terms used throughout the Prospectus.
Security Selection
Janus Henderson Balanced Fund pursues its investment objective by normally investing 35-65% of its assets in equity securities and the remaining assets in fixed-income securities and cash equivalents. In choosing investments for the Fund, the portfolio manager who focuses on the equity portion of the Fund applies a “bottom up” approach and looks at companies one at a time to determine if a company is an attractive investment opportunity and if it is consistent with the Fund’s investment policies. Factors that the equity portfolio manager may consider in his fundamental analysis include a company’s revenue growth potential, returns on capital, and balance sheet flexibility. The equity portfolio manager will generally consider selling a security when, among other things, it reaches or exceeds its targeted value, the investment thesis for owning the position has changed, or to rebalance industry or sector weightings. The portfolio managers who focus on the fixed-income portion of the Fund use research-driven, “top-down” and “bottom-up” factors to identify and manage exposure to risks across sectors, industries, and individual investments. The fixed-income portfolio managers evaluate expected risk-adjusted returns on a portfolio and position level by analyzing fundamentals, valuations, and market technical indicators.
Janus Henderson Contrarian Fund pursues its investment objective by normally investing at least 80% of its net assets (plus any borrowings for investment purposes) in equity securities with the potential for long-term growth of capital. The portfolio manager seeks to invest in companies where the stock price trades at a significant discount to the portfolio manager’s estimate of fair value and whose intrinsic value the portfolio manager believes will grow over time. The portfolio manager applies a “bottom up” approach in choosing investments. In other words, the portfolio manager looks at companies one at a time to determine if a company is an attractive investment opportunity and if it is consistent with the Fund’s investment policies. In conducting the “bottom up” analysis, the portfolio manager seeks to identify durable businesses whose stocks are available at market prices below the portfolio manager’s estimate of their intrinsic value, whose intrinsic value is expected to grow over time, and whose management teams are aligned with shareholders. The portfolio manager will generally consider selling a stock when, in the portfolio manager’s opinion, the business shows declining fundamentals, the stock is overvalued, or if the investing thesis for owning the stock has changed.
Janus Henderson Enterprise Fund may invest substantially all of its assets in common stock selected for their growth potential. The portfolio managers apply a “bottom up” approach in choosing investments. In other words, the portfolio managers look at companies one at a time to determine if a company is an attractive investment opportunity and if it is consistent with the Fund’s investment policies. Attributes considered in the process of securities selection may include sustainable growth, return on invested capital, attractive valuation, strength of management, and competitive positioning. The Fund will generally consider selling a stock when, in the portfolio managers’ opinion, there is a change in the company’s or industry’s fundamentals, there is a deterioration in a company’s competitive positioning, or if a company reaches or exceeds its targeted value. The Fund will also consider selling a stock if a company’s market capitalization exceeds the top of the medium-sized company range.
Janus Henderson Forty Fund pursues its investment objective by normally investing primarily in a portfolio of 30-40 common stocks selected for their growth potential. The portfolio managers apply a “bottom up” approach that focuses on fundamental research and considers, among other factors, a company’s sustainable competitive advantages, long-term growth potential, and shareholder value. The Fund will generally consider selling a security when, in the portfolio managers’ opinion, there is a deterioration in a company’s financial, the investment thesis for owning the position has changed, or if the security exceeds its targeted value.
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Janus Henderson Growth and Income Fund pursues its investment objective by normally investing in dividend-paying common stocks with strong growth potential. The portfolio manager applies a “bottom up” approach in choosing investments. In other words, the portfolio manager looks at companies one at a time to determine if a company is an attractive investment opportunity and if it is consistent with the Fund’s investment policies. Factors that the portfolio manager may consider in his fundamental analysis include a company’s returns on capital, balance sheet flexibility, and dividend growth potential. The portfolio manager will generally consider selling a security when, among other things, it reaches or exceeds its targeted value, the investment thesis for owning the position has changed, or to rebalance industry or sector weightings.
The Adviser’s equity research analysts, overseen by the Portfolio Oversight Team led by the Adviser’s Director of Research Matthew Peron (the “Central Research Team”), select investments for Janus Henderson Research Fund that reflect the Central Research Team’s high-conviction investment ideas in all market capitalizations and styles. The Central Research Team, comprised of sector specialists, conducts fundamental analysis with a focus on “bottom up” research, quantitative modeling, and valuation analysis and rate their stocks based upon attractiveness. Stocks considered to be attractive may have all or some of the following characteristics: (i) good and preferably growing free cash flow, (ii) strong and defensible market position, (iii) healthy risk/return profile, (iv) exemplary governance, and (v) attractive valuation. Analysts bring their high-conviction ideas to their respective sector teams. Sector teams compare the appreciation and risk potential of each of the team’s high-conviction ideas and construct a sector portfolio that is intended to maximize the best risk-reward opportunities. The Central Research Team and Mr. Peron participate in the portfolio construction process as part of their oversight function. Although the Central Research Team may find high-conviction investment ideas anywhere in the world, the Central Research Team emphasizes investments in securities of U.S.-based issuers. Positions may be sold when, among other things, there is no longer high conviction in the return potential of the investment, if the risk characteristics have caused a re-evaluation of the opportunity, or if the investment thesis for owning a position has changed. This may occur if the stock has appreciated and reflects the anticipated value, if another company represents a better risk-reward opportunity, or if the investment’s fundamental characteristics deteriorate. Securities may also be sold from the portfolio to rebalance sector weightings.
Janus Henderson Triton Fund pursues its investment objective by investing at least 50% of its equity assets in small- and medium-sized companies. The Fund may also invest in larger companies with strong growth potential. The portfolio managers apply a “bottom up” approach in choosing investments. In other words, the portfolio managers look at companies one at a time to determine if a company is an attractive investment opportunity and if it is consistent with the Fund’s investment policies. Factors that the portfolio managers may consider in their fundamental analysis include a company’s valuation, operating margins, or returns on capital. The portfolio managers will generally consider selling a position when, among other things, there is a deterioration in a company’s competitive position or financials, a company reaches or exceeds its targeted value, or if a company’s market capitalization exceeds the top of the small- and medium-sized range.
Janus Henderson Venture Fund pursues its investment objective by investing at least 50% of its equity assets in small-sized companies. The Fund may also invest in larger companies with strong growth potential. The portfolio managers of apply a “bottom up” approach in choosing investments. In other words, the portfolio managers look at companies one at a time to determine if a company is an attractive investment opportunity and if it is consistent with the Fund’s investment policies. Factors that the portfolio managers may consider in their fundamental analysis include a company’s valuation, operating margins, or returns on capital. The portfolio managers will generally consider selling a position when, among other things, there is a deterioration in a company’s competitive position or financials, a company reaches or exceeds its targeted value, or if a company’s market capitalization exceeds the top of the small-sized range.
Cash Position
The Funds may not always stay fully invested. For example, when the portfolio managers and/or investment personnel believe that market conditions are unfavorable for investing, or when they are otherwise unable to locate attractive investment opportunities, a Fund’s cash or similar investments may increase. Due to differing investment strategies, the cash positions among the Funds may vary significantly. When a Fund’s investments in cash or similar investments increase, it may not participate in market advances or declines to the same extent that it would if the Fund remained more fully invested. To the extent a Fund invests its uninvested cash through a sweep program (meaning its uninvested cash is pooled with uninvested cash of other funds and invested in certain securities such as repurchase agreements), it is subject to the risks of the account or fund into which it is investing, including liquidity issues that may delay the Fund from accessing its cash.
In addition, a Fund may temporarily increase its cash position under certain unusual circumstances, such as to protect its assets or maintain liquidity in certain circumstances to meet unusually large redemptions. A Fund’s cash position may also
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increase temporarily due to unusually large cash inflows. Under unusual circumstances such as these, a Fund may invest up to 100% of its assets in cash or similar investments. In this case, the Fund may take positions that are inconsistent with its investment policies. As a result, the Fund may not achieve its investment objective.
Consideration of ESG Factors
The portfolio managers and/or investment personnel of Janus Henderson Enterprise Fund, Janus Henderson Growth and Income Fund, Janus Henderson Research Fund, Janus Henderson Triton Fund, Janus Henderson Venture Fund, and the equity portion of Janus Henderson Balanced Fund may consider one or more environmental, social, and governance (“ESG”) factors alongside other fundamental characteristics considered in the investment research process. In the portfolio managers’ and/or investment personnel’s view, ESG factors, along with other attributes relevant to fundamental analysis, could potentially impact investment risk and/or returns. The identification of an ESG risk factor will not necessarily exclude a particular security or sector that, in the portfolio managers’ and/or investment personnel’s view, is otherwise suitable for investment. To facilitate the assessment of ESG factors, the portfolio managers and/or investment personnel use a mix of third-party data and internally generated analyses and may engage directly with companies. ESG factors may or may not be relevant or considered for each and every investment decision depending on the portfolio managers’ and/or investment personnel’s perspective. The portfolio managers and/or investment personnel may assess the relevance of ESG factors to their fundamental research process differently across issuers, sectors, regions, and asset classes.
Derivatives
A Fund may invest in derivatives, which are financial instruments whose value is derived from, or directly linked to, an underlying asset, instrument, currency, or index. A Fund may take long and short positions in derivatives. Derivatives can be used for hedging purposes or for non-hedging purposes, such as seeking to earn income and enhance return, to protect unrealized gains, or to avoid realizing losses. Such techniques may also be used to adjust currency exposure relative to a benchmark index, to gain exposure to the market pending investment of cash balances, or to meet liquidity needs.
Emerging Markets
Within the parameters of its specific investment policies, each Fund may invest in securities of issuers or companies from or with exposure to one or more “developing countries” or “emerging market countries.” Such countries include, but are not limited to, countries included in the MSCI Emerging Markets Indexsm. Emerging market countries in which a Fund may invest include frontier market countries, the economies of which are less developed than other emerging market countries. Frontier market countries typically are located in the Asia-Pacific region, Central and Eastern Europe, the Middle East, Central and South America, and Africa.
ESG Integration
The portfolio managers who focus on the fixed-income portion of Janus Henderson Balanced Fund integrate ESG factors by incorporating ESG information into the Fund’s investment process. The fixed-income portfolio managers focus on the ESG factors they consider most likely to have a material impact on the financial performance of the issuers in the Fund’s portfolio, which includes identifying material ESG risk factors attributable to a particular sector, industry, or issuer. The fixed-income portfolio managers believe that an issuer’s ESG practices may have an impact, positive or negative, on the issuer’s long-term financial performance, and, at their discretion, engage with an issuer’s management to encourage improved ESG practices. ESG factors are one of many considerations in the investment decision-making process and may not be determinative in deciding to include or exclude an investment from the portfolio.
Foreign Securities
Certain Funds may invest in foreign securities. The portfolio managers and/or investment personnel seek investments that meet the selection criteria, regardless of where an issuer or company is located. Foreign securities are generally selected on a security-by-security basis without regard to any predetermined allocation among countries or geographic regions. However, certain factors, such as expected levels of inflation, government policies influencing business conditions, the outlook for currency relationships, and prospects for economic growth among countries, regions, or geographic areas, may warrant greater consideration in selecting foreign securities. The Funds may at times have significant foreign exposure, including exposure to emerging markets.
High-Yield/High-Risk Bonds
Within the parameters of its specific investment policies, certain Funds may invest in bonds that are rated below investment grade, such as BB+ or lower by Standard & Poor’s Ratings Services (“Standard & Poor’s”) and Fitch, Inc. (“Fitch”), or Ba1 or
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lower by Moody’s Investors Service, Inc. (“Moody’s”), or is an unrated bond of similar quality. Lower rated bonds have a higher degree of credit risk than higher quality bonds. A Fund may also invest in unrated bonds of foreign and domestic issuers.
Illiquid Investments
A Fund will not acquire any illiquid investment if, immediately after the acquisition, the Fund would have invested more than 15% of its net assets in illiquid investments that are assets. An illiquid investment is any investment that a Fund reasonably expects cannot be sold or disposed of in current market conditions in seven calendar days or less without the sale or disposition significantly changing the market value of the investment.
Initial Public Offerings and Secondary Offerings
A Fund may purchase shares issued as part of, or a short period after, a company’s IPO, and may at times dispose of those shares shortly after their acquisition. An IPO is the first sale of stock by a private company to the public. IPOs are often issued by smaller, younger companies seeking the capital to expand, but can also be done by large privately-owned companies looking to become publicly traded. A Fund may also purchase shares in offerings made by companies that are publicly traded (“secondary offerings”). Secondary offerings may be made by companies for a number of reasons, including as part of a refinancing, to raise capital for growth, and/or to provide existing shareholders with a way to register and sell restricted shares.
Leverage
Certain of a Fund’s investments, including derivatives and short sale transactions, involve the use of leverage. Leverage is investment exposure which exceeds the initial amount invested. Leverage occurs when a Fund increases its assets available for investment using derivatives, short sales, when-issued, delayed delivery, or forward commitment transactions, or other similar transactions. The use of other investment techniques can also create a leveraging effect on a Fund.
Loans
Janus Henderson Balanced Fund may invest in various commercial loans, including bank loans, bridge loans, debtor-in-possession (“DIP”) loans, mezzanine loans, and other fixed and floating rate loans. These loans may be acquired through loan participations and assignments or on a when-issued basis. Commercial loans will comprise no more than 20% of the Fund’s total assets.
Bank Loans.Bank loans are obligations of companies or other entities entered into in connection with recapitalizations, acquisitions, and refinancings. The Fund’s investments in bank loans are generally acquired as a participation interest in, or assignment of, loans originated by a lender or other financial institution. These investments may include institutionally-traded floating and fixed-rate debt securities.
Bridge Loans.Bridge loans are short-term loan arrangements typically made by a borrower in anticipation of receiving intermediate-term or long-term permanent financing. Most bridge loans are structured as floating-rate debt with step-up provisions under which the interest rate on the bridge loan increases the longer the loan remains outstanding. In addition, bridge loans commonly contain a conversion feature that allows the bridge loan investor to convert its loan interest to senior exchange notes if the loan has not been prepaid in full on or prior to its maturity date. Bridge loans typically are structured as senior loans, but may be structured as junior loans.
DIP Loans.DIP loans are issued in connection with restructuring and refinancing transactions. DIP loans are loans to a debtor-in-possession in a proceeding under the U.S. bankruptcy code that have been approved by the bankruptcy court. DIP loans are typically fully secured by a lien on the debtor’s otherwise unencumbered assets or secured by a junior lien on the debtor’s encumbered assets (so long as the loan is fully secured based on the most recent current valuation or appraisal report of the debtor). DIP loans are often required to close with certainty and in a rapid manner to satisfy existing creditors and to enable the issuer to emerge from bankruptcy or to avoid a bankruptcy proceeding.
Mezzanine Loans.Mezzanine loans are a hybrid of debt and equity financing that is typically used to fund the expansion of existing companies. A mezzanine loan is composed of debt capital that gives the lender the right to convert to an ownership or equity interest in the company if the loan is not paid back in time and in full. Mezzanine loans typically are the most subordinated debt obligation in an issuer’s capital structure.
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Mortgage- and Asset-Backed Securities
A Fund may purchase fixed or variable rate commercial or residential mortgage-backed securities issued by the Government National Mortgage Association (“Ginnie Mae”), the Federal National Mortgage Association (“Fannie Mae”), the Federal Home Loan Mortgage Corporation (“Freddie Mac”), or other governmental or government-related entities. Ginnie Mae’s guarantees are backed by the full faith and credit of the U.S. Government, which means that the U.S. Government guarantees that the interest and principal will be paid when due. Fannie Mae and Freddie Mac securities are not backed by the full faith and credit of the U.S. Government.
A Fund may also purchase mortgage- and asset-backed securities through single- and multi-seller conduits, collateralized debt obligations, structured investment vehicles, and other similar securities. Asset-backed securities may be backed by various consumer obligations, including automobile loans, equipment leases, credit card receivables, or other collateral. In the event the underlying loans are not paid, the securities’ issuer could be forced to sell the assets and recognize losses on such assets, which could impact a Fund’s yield and return.
Nondiversification
Diversification is a way to reduce risk by investing in a broad range of stocks or other securities. Janus Henderson Contrarian Fund and Janus Henderson Forty Fund are classified as nondiversified. A fund that is classified as nondiversified has the ability to take larger positions in securities than a fund that is classified as diversified. This gives a fund which is classified as nondiversified more flexibility to focus its investments in companies that the portfolio managers have identified as the most attractive for the investment objective and strategy of the fund. However, because the appreciation or depreciation of a single security may have a greater impact on the net asset value of a fund which is classified as nondiversified, its share price can be expected to fluctuate more than a comparable fund which is classified as diversified. This fluctuation, if significant, may affect the performance of the fund.
Portfolio Turnover
In general, each Fund intends to purchase securities for long-term investment, although, to a limited extent, a Fund may purchase securities in anticipation of relatively short-term gains. Short-term transactions may also result from liquidity needs, securities having reached a price or yield objective, changes in interest rates or the credit standing of an issuer, or by reason of economic or other developments not foreseen at the time of the initial investment decision. A Fund may also sell one security and simultaneously purchase the same or a comparable security to take advantage of short-term differentials in bond yields or securities prices. Portfolio turnover is affected by market conditions, changes in the size of a Fund (including due to shareholder purchases and redemptions), the nature of a Fund’s investments, and the investment style of the portfolio managers and/or investment personnel. Changes are normally made in a Fund’s portfolio whenever the portfolio managers and/or investment personnel believe such changes are desirable. Portfolio turnover rates are generally not a factor in making buy and sell decisions for the Funds.
Increased portfolio turnover may result in higher costs for brokerage commissions, dealer mark-ups, and other transaction costs, and may also result in taxable capital gains. Higher costs associated with increased portfolio turnover also may have a negative effect on a Fund’s performance. The “Financial Highlights” section of this Prospectus shows the Funds’ historical turnover rates.
REITs and Real Estate-Related Securities
A Fund may invest in equity and debt securities of real estate-related companies. Such companies may include those in the real estate industry or real estate-related industries. These securities may include common stocks, preferred stocks, and other securities, including, but not limited to, mortgage-backed securities, real estate-backed securities, securities of REITs and similar REIT-like entities (such as real estate operation companies (“REOCs”)). A REIT is an entity that invests in real estate-related projects, such as properties, mortgage loans, and construction loans. REITs are often categorized as equity REITs, mortgage REITs, and hybrid REITs. An equity REIT, the most common type of REIT, invests primarily in the fee ownership of land and buildings. An equity REIT derives its income primarily from rental income but may also realize capital gains or losses by selling real estate properties in its portfolio that have appreciated or depreciated in value. A mortgage REIT invests primarily in mortgages on real estate, which may secure construction, development, or long-term loans. A mortgage REIT generally derives its income from interest payments on the credit it has extended. A hybrid REIT combines the characteristics of equity REITs and mortgage REITs, generally by holding both ownership interests and mortgage interests in real estate.
Similar to REITs, REOCs are publicly-traded real estate companies that typically engage in the development, management or financing of real estate, such as homebuilders, hotel management companies, land developers and brokers. REOCs, however,
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have not elected (or are not eligible) to be taxed as a REIT. The reasons for not making such an election include the (i) availability of tax-loss carry-forwards, (ii) operation in non-REIT-qualifying lines of business, and (iii) ability to retain earnings. Instead, REOCs are generally structured as “C” corporations under the Internal Revenue Code of 1986, as amended, and, as a result, are not required to distribute any portion of their income. In this regard, although REOCs do not receive the same favorable tax treatment that is accorded to REITs, REOCs are typically subject to fewer restrictions than REITS, including the ability to retain and/or reinvest funds from operations and more flexibility in terms of the real estate investments they can make.
Securities Lending
A Fund may seek to earn additional income through lending its securities to certain qualified broker-dealers and institutions on a short-term or long-term basis, in an amount equal to up to one-third of its total assets as determined at the time of the loan origination. When a Fund lends its securities, it receives collateral (including cash collateral), at least equal to the value of securities loaned. The Fund may earn income by investing this collateral in one or more affiliated or non-affiliated cash management vehicles or in time deposits. It is also possible that, due to a decline in the value of a cash management vehicle in which collateral is invested, the Fund may lose money. There is also the risk that when portfolio securities are lent, the securities may not be returned on a timely basis, and the Fund may experience delays and costs in recovering the security or gaining access to the collateral provided to the Fund to collateralize the loan. If the Fund is unable to recover a security on loan, the Fund may use the collateral to purchase replacement securities in the market. There is a risk that the value of the collateral could decrease below the cost of the replacement security by the time the replacement investment is made, resulting in a loss to the Fund. In certain circumstances, individual loan transactions could yield negative returns. The Adviser intends to manage a portion of the cash collateral in an affiliated cash management vehicle and will receive an investment advisory fee for managing such assets.
Short Sales
The Funds may invest in short positions through short sales of stocks and structured products, and through derivatives that include swaps, uncovered written calls, and futures. With the exception of Janus Henderson Balanced Fund, each Fund’s gross notional exposure to short positions may not exceed 10% of each Fund’s net assets. Janus Henderson Balanced Fund’s gross notional exposure to short positions may not exceed 50% of the net assets in the Fund’s fixed-income portion, and may not exceed 10% of the net assets in the Fund’s equity portion.
A Fund may also engage in short sales “against the box” and options for hedging purposes that are not subject to the limits set forth above. Short sales against the box involve selling short a security that a Fund owns, or the Fund has the right to obtain the amount of the security sold short at a specified date in the future. A Fund may also enter into a short sale to hedge against anticipated declines in the market price of a security or to reduce portfolio volatility.
A short sale is generally a transaction in which a Fund sells a security it does not own or have the right to acquire (or that it owns but does not wish to deliver) in anticipation that the market price of that security will decline. To complete the transaction, the Fund must borrow the security to make delivery to the buyer. The Fund is then obligated to replace the security borrowed by purchasing the security at the market price at the time of replacement. A short sale is subject to the risk that if the price of the security sold short increases in value, the Fund will incur a loss because it will have to replace the security sold short by purchasing it at a higher price. In addition, the Fund may not always be able to close out a short position at a particular time or at an acceptable price. A lender may request, or market conditions may dictate, that the borrowed securities be returned to the lender on short notice, and the Fund may have to buy the borrowed securities at an unfavorable price. If this occurs at a time when other short sellers of the same security also want to close out their positions, a “short squeeze” can occur, which means that the demand is greater than the supply for the stock sold short. If a short squeeze occurs, it is more likely that the Fund will have to cover its short sale at an unfavorable price and potentially reduce or eliminate any gain, or cause a loss, as a result of the short sale. Because there is no upper limit to the price a borrowed security may reach prior to closing a short position, a Fund’s losses are potentially unlimited in a short sale transaction. A Fund’s gains and losses will also be decreased or increased, as the case may be, by the amount of any dividends, interest, or expenses, including transaction costs and borrowing fees, the Fund may be required to pay in connection with a short sale. Such payments may result in the Fund having higher expenses than a Fund that does not engage in short sales and may negatively affect the Fund’s performance.
A Fund may enter into a derivatives transaction to obtain short investment exposure to an underlying reference asset. If the value of the underlying reference asset on which a Fund has obtained a short investment exposure increases, the Fund will
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incur a loss. This potential loss is theoretically unlimited. A short exposure through a derivative also exposes a Fund to credit risk, counterparty risk, and leverage risk.
Special Purpose Acquisition Companies
Certain Funds may invest in stock, warrants, and other securities of special purpose acquisition companies (“SPACs”) or similar entities that pool funds to seek potential acquisition opportunities. Unless and until an acquisition is completed, a SPAC typically invests its assets (less a portion retained to cover expenses) in U.S. Government securities, money market fund securities, and cash. If an acquisition that meets the requirements for the SPAC is not completed within a pre-established period of time (typically two years), the invested funds are returned to the SPAC’s shareholders. Because SPACs and similar entities are in essence blank check companies without an operating history or ongoing business other than seeking acquisitions, the value of a SPAC’s securities is particularly dependent on the ability of the SPAC’s management to timely identify and complete a profitable acquisition. Some SPACs may pursue acquisitions only within certain industries or regions, which may increase the volatility of their prices. To the extent the SPAC is invested in cash or similar securities while awaiting an acquisition opportunity, a Fund’s ability to meet its investment objective may be negatively impacted. In addition, some SPACs may be traded in the over-the-counter market and may be considered illiquid and/or be subject to restrictions on resale.
Special Situations
The Funds may invest in companies that demonstrate special situations or turnarounds, meaning companies that have experienced significant business problems but are believed to have favorable prospects for recovery. For example, a special situation or turnaround may arise when, in the opinion of a Fund’s portfolio managers and/or investment personnel, the securities of a particular issuer will be recognized as undervalued by the market and appreciate in value due to a specific development with respect to that issuer. Special situations may include significant changes in a company’s allocation of its existing capital, a restructuring of assets, or a redirection of free cash flow. For example, issuers undergoing significant capital changes may include companies involved in spin-offs, sales of divisions, mergers or acquisitions, companies involved in bankruptcy proceedings, or companies initiating large changes in their debt to equity ratio. Companies that are redirecting cash flows may be reducing debt, repurchasing shares, or paying dividends. Special situations may also result from: (i) significant changes in industry structure through regulatory developments or shifts in competition; (ii) a new or improved product, service, operation, or technological advance; (iii) changes in senior management or other extraordinary corporate event; (iv) differences in market supply of and demand for the security; or (v) significant changes in cost structure. Investments in “special situations” companies can present greater risks than investments in companies not experiencing special situations, and a Fund’s performance could be adversely impacted if the securities selected decline in value or fail to appreciate in value.
Swap Agreements
Certain Funds may utilize swap agreements including, but not limited to, credit default swaps, equity swaps, inflation index swaps, interest rate and currency swaps, total return swaps (including fixed-income total return swaps), and swaps on exchange-traded funds, as a means to gain exposure to certain companies or countries, and/or to “hedge” or protect their portfolios from adverse movements in securities prices, the rate of inflation, or interest rates. Swaps may also be used for capital appreciation. Swap agreements are two-party contracts to exchange one set of cash flows for another. Swap agreements entail the risk that a party will default on its payment obligations to a Fund. If the other party to a swap defaults, the Fund would risk the loss of the net amount of the payments that it contractually is entitled to receive. If a Fund utilizes a swap at the wrong time or judges market conditions incorrectly, the swap may result in a loss to the Fund and reduce the Fund’s total return. Various types of swaps such as credit default, equity, interest rate, and total return are described in the “Glossary of Investment Terms.”
TBA Commitments
A Fund may enter into “to be announced” or “TBA” commitments. TBA commitments are forward agreements for the purchase or sale of securities, including mortgage-backed securities, for a fixed price, with payment and delivery on an agreed upon future settlement date. The specific securities to be delivered are not identified at the trade date. However, delivered securities must meet specified terms, including issuer, rate, and mortgage terms. At the time the TBA commitment is made, the transaction is recorded and thereafter the value of such securities is reflected each day in determining a Fund’s net asset value (“NAV”). Because a Fund is generally not required to pay for the security until the settlement date, if the Fund remains substantially fully invested at a time when TBA commitment purchases are outstanding, the purchases may result in a form of leverage.
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U.S. Government Securities
Each Fund, particularly Janus Henderson Balanced Fund, may invest in U.S. Government securities. U.S. Government securities include those issued directly by the U.S. Treasury and those issued or guaranteed by various U.S. Government agencies and instrumentalities. Some government securities are backed by the full faith and credit of the United States. Other government securities are backed only by the rights of the issuer to borrow from the U.S. Treasury. Others are supported by the discretionary authority of the U.S. Government to purchase the obligations. Certain other government securities are supported only by the credit of the issuer. For securities not backed by the full faith and credit of the United States, a Fund must look principally to the agency or instrumentality issuing or guaranteeing the securities for repayment and may not be able to assert a claim against the United States if the agency or instrumentality does not meet its commitment. Such securities may involve increased risk of loss of principal and interest compared to government debt securities that are backed by the full faith and credit of the United States.
Because of the rising U.S. Government debt burden, it is possible that the U.S. Government may not be able to meet its financial obligations or that securities issued or backed by the U.S. Government may experience credit downgrades. Such a credit event may adversely affect the financial markets.
Other Types of Investments
Unless otherwise stated within its specific investment policies, each Fund may also invest in other types of domestic and foreign securities and use other investment strategies. These securities and strategies are not intended to be principal investment strategies of the Funds. If successful, they may benefit the Funds by earning a return on the Funds’ assets or reducing risk; however, they may not achieve the Funds’ investment objectives. These securities and strategies may include:
debt securities (such as bonds, notes, sovereign debt, and debentures)
other investment companies (such as exchange-traded funds (“ETFs”))
preferred stocks and securities convertible into common stocks or preferred stocks
indexed/structured securities (such as commercial and residential mortgage- and asset-backed securities)
securities purchased on a when-issued, delayed delivery, or forward commitment basis
equity and fixed-income securities issued in private placement transactions
The value of your investment will vary over time, sometimes significantly, and you may lose money by investing in the Funds. To varying degrees, the Funds may invest in stocks, fixed-income securities, money market instruments or cash/cash equivalents, and derivatives. The following information is intended to help you better understand some of the risks of investing in the Funds, including those risks that are summarized in the Fund Summary sections. This information also includes descriptions of other risks a Fund may be subject to as a result of additional investment strategies and general policies that may apply to the Fund. The impact of the following risks on a Fund may vary depending on the Fund’s investments. The greater the Fund’s investment in a particular security, the greater the Fund’s exposure to the risks associated with that security. Before investing in a Fund, you should consider carefully the risks that you assume when investing in the Fund.
Convertible Securities Risk.A Fund may invest in securities that are convertible into preferred and common stocks, and thus, is subject to the risks of investments in both debt and equity securities. The market value of convertible securities tends to decline as interest rates increase and, conversely, tends to increase as interest rates decline. In addition, because of the conversion feature, the market value of convertible securities tends to vary with fluctuations in the market value of the underlying preferred and common stocks and, therefore, also will react to variations in the general market for equity securities.
Counterparty Risk.Fund transactions involving a counterparty are subject to the risk that the counterparty or a third party will not fulfill its obligation to a Fund (“counterparty risk”). Counterparty risk may arise because of the counterparty’s financial condition (i.e., financial difficulties, bankruptcy, or insolvency), market activities and developments, or other reasons, whether foreseen or not. A counterparty’s inability to fulfill its obligation may result in significant financial loss to a Fund. A Fund may be unable to recover its investment from the counterparty or may obtain a limited recovery, and/or recovery may be delayed. A Fund may be exposed to counterparty risk to the extent it participates in lending its securities to
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third parties and/or cash sweep arrangements whereby the Fund’s cash balance is invested in one or more types of cash management vehicles or in time deposits. In addition, a Fund may be exposed to counterparty risk through its investments in certain securities, including, but not limited to, repurchase agreements, debt securities, and derivatives (including various types of swaps, futures, and options). Each Fund intends to enter into financial transactions with counterparties that the Adviser believes to be creditworthy at the time of the transaction. There is always the risk that the Adviser’s analysis of a counterparty’s creditworthiness is incorrect or may change due to market conditions. To the extent that a Fund focuses its transactions with a limited number of counterparties, it will have greater exposure to the risks associated with one or more counterparties.
Credit Quality Risk.Through a Fund’s investments in fixed-income securities, a Fund is subject to the risks associated with the credit quality of the issuers of those fixed-income securities. Credit quality measures the likelihood that the issuer or borrower will meet its obligations on a bond. One of the fundamental risks is credit risk, which is the risk that an issuer will be unable to make principal and interest payments when due, or default on its obligations. Higher credit risk may negatively impact a Fund’s returns and yield.
Many fixed-income securities receive credit ratings from services such as Standard & Poor’s, Fitch, and Moody’s. These services assign ratings to securities by assessing the likelihood of issuer default. The lower a bond issue is rated by an agency, the more credit risk it is considered to represent. Lower rated instruments and securities generally pay interest at a higher rate to compensate for the associated greater risk. Interest rates can fluctuate in response to economic or market conditions, which can result in a fluctuation in the price of a security and impact a Fund’s return and yield. If a security has not received a rating, a Fund must rely upon the Adviser’s credit assessment, which if incorrect can also impact the Fund’s returns and yield. Please refer to the “Explanation of Rating Categories” section of the SAI for a description of bond rating categories.
Credit Risk Transfer Securities Risk.Credit risk transfer securities (“CRTs”) are unguaranteed and unsecured debt securities that are commonly issued by a government sponsored entity. CRTs are not directly linked to or backed by the underlying mortgage loans, so investors such as a Fund have no direct recourse to the underlying mortgage loans in the event of a default. The risks associated with CRTs are different from the risks associated with investments in mortgage-backed securities issued by government sponsored entities or private issuers because some or all of the mortgage default or credit risk associated with the underlying mortgage loans is transferred to investors. Additional risks associated with investments in CRTs may include valuation risk, mortgage credit risk, liquidity risk, and prepayment risk.
Derivatives Risk.Derivatives can be volatile and involve risks in addition to the risks of the underlying referenced securities or asset. Gains or losses from a derivative investment can be substantially greater than the derivative’s original cost, and can therefore involve leverage. Leverage may cause a Fund to be more volatile than if it had not used leverage.
The Funds may use short sales, futures, options, swap agreements (including, but not limited to, equity, interest rate, credit default, and total return), and other derivative instruments individually or in combination to “hedge” or protect their portfolios from adverse movements in securities prices and interest rates. The Funds may also use a variety of currency hedging techniques, including the use of forward currency contracts, to manage currency risk. There is no guarantee that a portfolio manager’s and/or investment personnel’s use of derivative investments will benefit the Funds. A Fund’s performance could be worse than if the Fund had not used such instruments. Use of such investments may instead increase risk to the Fund, rather than reduce risk. Derivatives can be complex instruments and may involve analysis that differs from that required for other investment types used by a Fund. If the value of a derivative does not correlate well with the particular market or other asset class to which the derivative is intended to provide exposure, the derivative may not produce the anticipated result. Derivatives can also reduce the opportunity for gain or result in losses by offsetting positive returns in other investments. Derivatives entail the risk that the counterparty will default on its payment obligations. If the counterparty to a derivative transaction defaults, a Fund would risk the loss of the net amount of the payments that it contractually is entitled to receive. To the extent a Fund enters into short derivative positions, a Fund may be exposed to risks similar to those associated with short sales, including the risk that a Fund’s losses are theoretically unlimited.
Currency Futures Risk.Currency futures are similar to forward foreign currency exchange contracts, and pose similar risks, except that futures contracts are standardized, exchange-traded contracts while forward foreign currency exchange contracts are traded in the over-the-counter market. The use of currency futures contracts may substantially change a Fund’s exposure to currency exchange rates and could result in losses to a Fund if currencies do not perform as anticipated. Currency markets generally are not as regulated as securities markets. In addition, currency rates may fluctuate significantly over short periods of time, and can reduce returns. Currency futures may also involve leverage risk.
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Forward Foreign Currency Exchange Contract Risk.Forward foreign currency exchange contracts (“forward currency contracts”) involve the risk that unanticipated changes in currency prices may negatively impact a Fund’s performance. Moreover, there may be an imperfect correlation between a Fund’s portfolio holdings of securities quoted or denominated in a particular currency and any forward currency contracts entered into by the Fund, which will expose the Fund to risk of foreign exchange loss. The trading markets for forward currency contracts offer less protection against defaults than trading in currency instruments on an exchange. Because a forward currency contract is not guaranteed by an exchange or clearinghouse, a default on the contract could result in losses to a Fund and may force the Fund to cover its purchase or sale commitments, if any, at the current market price. In addition, forward currency contract markets can experience periods of illiquidity, which could prevent a Fund from divesting of a forward currency contract at the optimal time and may adversely affect a Fund’s returns and net asset value.
Interest Rate Swaps Risk.The Fund’s use of interest rate swaps involves investment techniques and risks different from those associated with ordinary portfolio security transactions. Interest rate swaps may result in potential losses if interest rates do not move as expected or if the counterparties are unable to satisfy their obligations.
Index Credit Default Swaps Risk.If a Fund holds a long position in an index credit default swap (“CDX”), the Fund would indirectly bear its proportionate share of any expenses paid by a CDX. By investing in CDXs, a Fund could be exposed to illiquidity risk, counterparty risk, and credit risk of the issuers of the underlying loan obligations and of the CDX markets. If there is a default by the CDX counterparty, a Fund will have contractual remedies pursuant to the agreements related to the transaction. CDXs also bear the risk that a Fund will not be able to meet its obligation to the counterparty.
Emerging Markets Risk.Within the parameters of its specific investment policies, each Fund may invest in securities of issuers or companies from or with exposure to one or more “developing countries” or “emerging market countries.” Such countries include, but are not limited to, countries included in the MSCI Emerging Markets Index. To the extent that a Fund invests a significant amount of its assets in one or more of these countries, its returns and net asset value may be affected to a large degree by events and economic conditions in such countries. The risks of foreign investing are heightened when investing in emerging markets, which may result in the price of investments in emerging markets experiencing sudden and sharp price swings. In many developing markets, there is less government supervision and regulation of stock exchanges, brokers, and listed companies than in more developed markets, making these investments potentially more volatile in price and less liquid than investments in developed securities markets, resulting in greater risk to investors. There is a risk in developing countries that a current or future economic or political crisis could lead to price controls, forced mergers of companies, expropriation or confiscatory taxation, imposition or enforcement of foreign ownership limits, seizure, nationalization, sanctions or imposition of restrictions by various governmental entities on investment and trading, or creation of government monopolies, any of which may have a detrimental effect on a Fund’s investments.
The securities markets of many of these emerging market countries may also be smaller, less liquid, and subject to greater price volatility than those in the United States. In the event of a default on any investments in foreign debt obligations, it may be more difficult for a Fund to obtain or to enforce a judgment against the issuers of such securities. In addition, a Fund’s investments may be denominated in foreign currencies and therefore, changes in the value of a country’s currency compared to the U.S. dollar may affect the value of the Fund’s investments. To the extent that a Fund invests a significant portion of its assets in the securities of emerging markets issuers in or companies of a single country or region, it is more likely to be impacted by events or conditions affecting that country or region, which could have a negative impact on the Fund’s performance. A Fund may be subject to emerging markets risk to the extent that it invests in securities of issuers or companies which are not considered to be from emerging markets, but which have customers, products, or transactions associated with emerging markets. Some of the risks of investing directly in emerging market securities may be reduced when a Fund invests indirectly in such securities through various other investment vehicles including derivatives, but such investments also involve other risks.
Emerging market countries in which a Fund may invest include frontier market countries, which generally have smaller economies and even less developed capital markets than traditional developing markets, and, as a result, the risks of investing in developing market countries are magnified in frontier market countries. The magnification of risks are the result of: potential for extreme price volatility and illiquidity in frontier markets; government ownership or control of parts of private sector and of certain companies; trade barriers, exchange controls, managed adjustments in relative currency values and other protectionist measures imposed or negotiated by other countries; and the relatively new and unsettled securities laws in many frontier market countries.
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ESG Integration Risk.The portfolio managers who focus on the fixed-income portion of Janus Henderson Balanced Fund integrate ESG factors by incorporating ESG information into the Fund’s investment process. As a result, the Fund may have different exposures to certain industries, sectors, or regions relative to its benchmark index and/or similar funds that do not consider ESG factors. This may in turn cause the Fund to underperform relative to its benchmark index or similar funds that do not consider ESG factors. In addition, information related to ESG factors provided by issuers and third parties, upon which the portfolio managers who focus on the fixed-income portion of the Fund may rely, continues to develop, and may be incomplete, inaccurate, use different methodologies or be applied differently across issuers and industries. Further, the regulatory landscape regarding ESG investing in the United States is still developing and future rules and regulations may require the Fund to modify or alter its investment process.
Eurozone Risk.A number of countries in the European Union (“EU”) have experienced, and may continue to experience, severe economic and financial difficulties. In particular, many EU nations are susceptible to economic risks associated with high levels of debt, notably due to investments in sovereign debt. These events have adversely affected the exchange rate of the euro and may continue to significantly affect European countries. As a result, financial markets in the EU have been subject to increased volatility and declines in asset values and liquidity. Responses to these financial problems by European governments, central banks, and others, including austerity measures and reforms, may not work, may result in social unrest, and may limit future growth and economic recovery or have other unintended consequences. All of these developments may continue to significantly affect the economies of all EU countries, which in turn may have a material adverse effect on a Fund’s investments in such countries, other countries that depend on EU countries for significant amounts of trade or investment, or issuers with exposure to debt issued by certain EU countries.
Exchange-Traded Funds Risk.The Funds may invest in ETFs to gain exposure to a particular portion of the market. ETFs are typically open-end investment companies, which may seek to track the performance of a specific index or be actively managed. ETFs are traded on a national securities exchange at market prices that may vary from the net asset value of their underlying investments. Accordingly, there may be times when an ETF trades at a premium or discount to its net asset value. When a Fund invests in an ETF, in addition to directly bearing the expenses associated with its own operations, it will bear a pro rata portion of the ETF’s expenses. As a result, the cost of investing in a Fund may be higher than the cost of investing directly in ETFs and may be higher than other mutual funds that invest directly in stocks and bonds. ETFs also involve the risk that an active trading market for an ETF’s shares may not develop or be maintained. Similarly, because the value of ETF shares depends on the demand in the market, a Fund may not be able to purchase or sell an ETF at the most optimal time, which could adversely affect the Fund’s performance. In addition, ETFs that track particular indices may be unable to match the performance of such underlying indices due to the temporary unavailability of certain index securities in the secondary market or other factors, such as discrepancies with respect to the weighting of securities.
The ETFs in which a Fund invests are subject to specific risks, depending on the investment strategy of the ETF. In turn, a Fund will be subject to substantially the same risks as those associated with direct exposure to the securities or commodities held by the ETF. Because a Fund may invest in a broad range of ETFs, such risks may include, but are not limited to, leverage risk, foreign exposure risk, and commodity-linked investments risk. To the extent a Fund invests in fixed-income ETFs, it will be indirectly exposed to the same risks described under “Fixed-Income Securities Risk.”
Fixed-Income Securities Risk.The Funds, particularly Janus Henderson Balanced Fund, may hold debt and other fixed-income securities. Typically, the values of fixed-income securities change inversely with prevailing interest rates. Therefore, a fundamental risk of fixed-income securities is interest rate risk, which is the risk that the value of such securities will generally decline as prevailing interest rates rise, which may cause a Fund’s net asset value to likewise decrease. How specific fixed-income securities may react to changes in interest rates will depend on the specific characteristics of each security. For example, while securities with longer maturities and durations tend to produce higher yields, they also tend to be more sensitive to changes in prevailing interest rates and are therefore more volatile than shorter-term securities and are subject to greater market fluctuations as a result of changes in interest rates. However, calculations of maturity and duration may be based on estimates and may not reliably predict a security’s price sensitivity to changes in interest rates. In addition, different interest rate measures (such as short- and long-term interest rates and U.S. and non-U.S. interest rates), or interest rates on different types of securities or securities of different issuers, may not necessarily change in the same amount or in the same direction. Investments in fixed-income securities with very low or negative interest rates may diminish a Fund’s yield and performance.
Fixed-income securities are also subject to credit risk, which is the risk that the credit strength of an issuer of a fixed-income security will weaken and/or that the issuer will be unable to make timely principal and interest payments and that the
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security may go into default. In addition, there is prepayment risk, which is the risk that during periods of falling interest rates, certain debt obligations may be paid off quicker than originally anticipated, which may cause a Fund to reinvest its assets in securities with lower yields, resulting in a decline in a Fund’s income or return potential. Fixed-income securities may also be subject to valuation risk and liquidity risk. Valuation risk is the risk that one or more of the fixed-income securities in which a Fund invests are priced differently than the value realized upon such security’s sale. In times of market instability, valuation may be more difficult. Valuation may also be affected by changes in the issuer’s financial strength, the market’s perception of such strength, or in the credit rating of the issuer of the security. Liquidity risk is the risk that fixed-income securities may be difficult or impossible to sell at the time that a portfolio manager would like or at the price a portfolio manager believes the security is currently worth. Consequently, the Fund may have to accept a lower price to sell a security, sell other securities to raise cash, or give up an investment opportunity, any of which could have a negative effect on the Fund’s performance. In unusual market conditions, even normally liquid securities may be affected by a degree of liquidity risk. To the extent a Fund invests in fixed-income securities in a particular industry or economic sector, its share values may fluctuate in response to events affecting that industry or sector. Securities underlying mortgage- and asset-backed securities, which may include subprime mortgages, also may be subject to a higher degree of credit risk, valuation risk, and liquidity risk. To the extent that a Fund invests in derivatives tied to fixed-income securities, the Fund may be more substantially exposed to these risks than a fund that does not invest in such derivatives. The market for certain fixed-income securities may become illiquid under adverse market or economic conditions independent of any specific adverse changes in the conditions of a particular issuer. Similarly, the amount of assets deemed illiquid remaining within a Fund may also increase, making it more difficult to meet shareholder redemptions and further adversely affecting the value of the Fund.
Foreign Exposure Risk.Within the parameters of its specific investment policies, each Fund may invest in foreign equity and debt securities either indirectly (e.g., depositary receipts, depositary shares, and passive foreign investment companies) or directly in foreign markets, including emerging markets. Additional risks may be present with respect to investments in securities of issuers or companies that are economically tied to different countries throughout the world. An issuer is deemed to be economically tied to a country or countries if one or more of the following tests are met: (i) the issuer is organized in, or its primary business office or principal trading market of its equity is located in, the country; (ii) a majority of the issuer’s revenues are derived from one or more countries; or (iii) a majority of the issuer’s assets are located in one or more countries. Investments in foreign securities, including securities of foreign and emerging market governments, may involve greater risks than investing in domestic securities because a Fund’s performance may depend on factors other than the performance of a particular company. These factors include:
Currency Risk.As long as a Fund holds a foreign security, its value will be affected by the value of the local currency relative to the U.S. dollar. When a Fund sells a foreign currency denominated security, its value may be worth less in U.S. dollars even if the security increases in value in its home country. U.S. dollar-denominated securities of foreign issuers may also be affected by currency risk, as the value of these securities may also be affected by changes in the issuer’s local currency.
Political and Economic Risk.Foreign investments may be subject to increased political and economic risks, including the imposition of economic and other sanctions. Sanctions imposed by the U.S. Government on other countries or persons or issuers operating in such countries could restrict a Fund’s ability to buy affected securities or force a Fund to dispose of any affected securities it has previously purchased at an inopportune time. As a result, a Fund may experience a greater risk of loss with respect to securities impacted by such sanctions.
Political and economic risks may be heightened in emerging markets, which may have relatively unstable governments, immature economic structures, national policies restricting investments by foreigners, social instability, and different and/or developing legal systems. In some countries, there is the risk that the government may take over the assets or operations of a company or that the government may impose withholding and other taxes or limits on the removal of a Fund’s assets from that country. In addition, the economies of emerging markets may be predominantly based on only a few industries, may be highly vulnerable to changes in local or global trade conditions, and may suffer from extreme and volatile debt burdens or inflation rates.
Regulatory Risk.There may be less government supervision of foreign markets. As a result, foreign issuers may not be subject to the uniform accounting, auditing, and financial reporting standards and practices applicable to domestic issuers, and there may be less publicly available information about foreign issuers.
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Foreign Market Risk.Foreign securities markets, particularly those of emerging market countries, may be less liquid and more volatile than domestic markets. These securities markets may trade a small number of securities, may have a limited number of issuers and a high proportion of shares, or may be held by a relatively small number of persons or institutions. Local securities markets may be unable to respond effectively to increases in trading volume, potentially making prompt liquidation of substantial holdings difficult or impossible at times. It is also possible that certain markets may require payment for securities before delivery, and delays may be encountered in settling securities transactions. In some foreign markets, there may not be protection against failure by other parties to complete transactions. It may not be possible for a Fund to repatriate capital, dividends, interest, and other income from a particular country or governmental entity. In addition, securities of issuers located in or economically tied to countries with emerging markets may have limited marketability and may be subject to more abrupt or erratic price movements which could also have a negative effect on a Fund. Such factors may hinder a Fund’s ability to buy and sell emerging market securities in a timely manner, affecting the Fund’s investment strategies and potentially affecting the value of the Fund.
Geographic Concentration Risk.To the extent that a Fund invests a substantial amount of its assets in issuers located in a single country or region, the economic, political, social, regulatory, or other developments or conditions within such country or region will generally have a greater effect on the Fund than they would on a more geographically diversified fund, which may result in greater losses and volatility. Adverse developments in certain regions could also adversely affect securities of other countries whose economies appear to be unrelated and could have a negative impact on a Fund’s performance.
Transaction Costs.Costs of buying, selling, and holding foreign securities, including brokerage, tax, and custody costs, may be higher than those involved in domestic transactions.
High-Yield/High-Risk Bond Risk.High-yield/high-risk bonds (also known as “junk” bonds) are bonds rated below investment grade by the primary rating agencies such as Standard & Poor’s, Fitch, and Moody’s or are unrated bonds of similar quality. The value of lower quality bonds generally is more dependent on credit risk than investment grade bonds. Issuers of high-yield/high-risk bonds may not be as strong financially as those issuing bonds with higher credit ratings and are more vulnerable to real or perceived economic changes, political changes, or adverse developments specific to the issuer. In addition, the junk bond market can experience sudden and sharp price swings.
The secondary market on which high-yield securities are traded is less liquid than the market for investment grade securities. The lack of a liquid secondary market may have an adverse impact on the market price of the security. Additionally, it may be more difficult to value the securities because valuation may require more research, and elements of judgment may play a larger role in the valuation because there is less reliable, objective data available.
Please refer to the “Explanation of Rating Categories” section of the SAI for a description of bond rating categories.
Industry and Sector Risk.Industry and sector risk is the possibility that a group of related securities will decline in price due to industry-specific or economic sector-specific developments. Companies in the same or similar industries and economic sectors may share common characteristics and are more likely to react similarly to industry-specific market or economic developments. Each Fund’s investments, if any, in multiple companies in a particular industry or economic sector may increase that Fund’s exposure to industry and sector risk.
Inflation Risk.Inflation creates uncertainty over the future real value of an investment (the value after adjusting for inflation). The real value of certain assets or real income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of a Fund’s assets and distributions may decline. This risk is more prevalent with respect to debt securities held by a Fund. Inflation rates may change frequently and drastically as a result of various factors, including unexpected shifts in the domestic or global economy. Moreover, a Fund’s investments may not keep pace with inflation, which may result in losses to Fund shareholders or adversely affect the real value of shareholders’ investment in a Fund. Fund shareholders’ expectation of future inflation can also impact the current value of a Fund’s portfolio, resulting in lower asset values and potential losses. This risk may be elevated compared to historical market conditions because of recent monetary policy measures and the current interest rate environment.
Inflation-Related Investments Risk.Inflation-linked bonds (including Treasury Inflation-Protected Securities, also known as TIPS), and other inflation-linked securities normally will decline in value when real interest rates rise. In certain interest rate environments, such as when real interest rates are rising faster than nominal interest rates, inflation-indexed bonds may experience greater losses than other fixed-income securities with similar durations. Except for a Fund’s investments in TIPS,
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which are guaranteed as to principal by the U.S. Treasury, the inflation-adjusted principal value of inflation-linked bonds repaid at maturity may be less than the original principal. Because of their inflation-linked adjustment feature, inflation-linked bonds typically have lower yields than conventional fixed-rate securities. In the event of deflation, where prices decline over time, the principal and income of inflation-linked bonds will likely decline, resulting in losses to a Fund.
Initial Public Offering and Secondary Offering Risk.A Fund’s purchase of shares issued in an IPO exposes it to the risks associated with companies that have little operating history as public companies, as well as to the risks inherent in those sectors of the market where these new issuers operate. Attractive IPOs are often oversubscribed and may not be available to the Funds, or may be available only in very limited quantities. The market for IPO issuers has been volatile, and share prices of newly public companies have fluctuated up and down significantly over short periods of time. Although IPO investments may have had a positive impact on certain Funds’ performance in the past, there can be no assurance that the Funds will identify favorable IPO investment opportunities in the future. In addition, under certain market conditions, a relatively small number of companies may issue securities in IPOs. Similarly, as the number of Funds to which IPO securities are allocated increases, the number of securities issued to any one Fund may decrease. In addition, as a Fund increases in size, the impact of IPOs on the Fund’s performance will generally decrease.
A Fund may purchase shares in secondary offerings. Secondary offerings may expose a Fund to some of the risks of IPOs. Participation in secondary offerings may have a magnified impact on the performance of a fund to the extent that it has a small asset base and the fund may not experience similar performance as its assets grow. Secondary offering shares frequently are volatile in price. As a result, a Fund may hold secondary offering shares for a very short period of time. This may increase the portfolio turnover rate of the Fund and may lead to increased expenses for the Fund, such as commissions and transaction costs. In addition, secondary offering shares can experience an immediate drop in value if the demand for the securities does not continue to support the offering price.
Interest Rate Risk.Generally, a fixed-income security will increase in value when prevailing interest rates fall and decrease in value when prevailing interest rates rise. Longer-term securities are generally more sensitive to interest rate changes than shorter-term securities, but they generally offer higher yields to compensate investors for the associated risks. High-yield bond prices and floating rate debt security prices are generally less directly responsive to interest rate changes than investment grade issues or comparable fixed rate securities, and may not always follow this pattern. The Funds may use futures, swaps, options, and other derivatives to manage interest rate risk. The income component of Janus Henderson Balanced Fund’s holdings includes fixed-income securities. The income component of Janus Henderson Growth and Income Fund’s holdings may include fixed-income securities.
Leverage Risk.Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose a Fund to greater risk and increase its costs. The use of leverage may cause a Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet the applicable requirements of the Investment Company Act of 1940, as amended, and the rules thereunder. Increases and decreases in the value of a Fund’s portfolio will be magnified when the Fund uses leverage.
LIBOR Replacement Risk.Janus Henderson Balanced Fund may invest in certain debt securities, derivatives, or other financial instruments that utilize the London InterBank Offered Rate (“LIBOR”) as a reference rate for various rate calculations. The U.K. Financial Conduct Authority has ceased to publish or maintain as representative many LIBOR settings and will phase out certain other commonly-used U.S. dollar LIBOR settings as of June 30, 2023. The elimination of LIBOR or other reference rates and the transition process away from LIBOR could adversely impact (i) volatility and liquidity in markets that are tied to these reference rates, (ii) the market for, or value of, specific securities or payments linked to those reference rates, (iii) the availability or terms of borrowing or refinancing, or (iv) the effectiveness of hedging strategies. For these and other reasons, the elimination of LIBOR or other reference rates may adversely affect a Fund’s performance and/or net asset value. Alternatives to LIBOR are established or in development in most major currencies including the Secured Overnight Financing Rate (“SOFR”) that is intended to replace the U.S. dollar LIBOR.
The effect of the discontinuation of LIBOR or other reference rates on a Fund will vary depending on, among other things (i) existing fallback or termination provisions in individual contracts and (ii) whether, how, and when industry participants develop and adopt new reference rates and fallbacks for both legacy and new products and instruments. Accordingly, it is difficult to predict the full impact of the transition away from LIBOR or other reference rates on a Fund until new reference rates and fallbacks for both legacy and new products, instruments, and contracts are commercially accepted.
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Liquidity Risk.A Fund may invest in securities or instruments that do not trade actively or in large volumes, and may make investments that are less liquid than other investments. Also, a Fund may make investments that may become less liquid in response to market developments or adverse investor perceptions. Investments that are illiquid or that trade in lower volumes may be more difficult to value. When there is no willing buyer and investments cannot be readily sold at the desired time or price, a Fund may have to accept a lower price or may not be able to sell the security or instrument at all. Investments in foreign securities, particularly those of issuers located in emerging market countries, tend to have greater exposure to liquidity risk than domestic securities. In unusual market conditions, even normally liquid securities may be affected by a degree of liquidity risk (i.e., if the number and capacity of traditional market participants is reduced). An inability to sell one or more portfolio positions can adversely affect a Fund’s value or prevent such Fund from being able to take advantage of other investment opportunities. Liquidity risk may be increased to the extent that a Fund invests in restricted securities that are deemed to be illiquid investments.
Liquidity risk may also refer to the risk that a Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests, or other reasons. While a Fund may pay redemptions in-kind, a Fund may instead choose to raise cash to meet redemption requests through the sale of portfolio securities or permissible borrowings. If a Fund is forced to sell securities at an unfavorable time and/or under unfavorable conditions, such sales may adversely affect the Fund’s net asset value, may increase brokerage costs, and may result in taxable capital gains.
Loan Risk.Janus Henderson Balanced Fund may invest in various commercial loans. The risks of such investments vary, depending on the type of loans underlying the investments, as described below.
Bank Loan Risk.The bank loans in which Janus Henderson Balanced Fund invests may be denominated in U.S. or non-U.S. currencies, including the euro. Bank loans are obligations of companies or other entities entered into in connection with recapitalizations, acquisitions, and refinancings. The Fund’s investments in bank loans are generally acquired as a participation interest in, or assignment of, loans originated by a lender or other financial institution. These investments may include institutionally-traded floating and fixed-rate debt securities. The bank loans underlying these securities often involve borrowers with low credit ratings whose financial conditions are troubled or uncertain, including companies that are highly leveraged or in bankruptcy proceedings. Participation interests and assignments involve credit, interest rate, and liquidity risk. Some participation interests and assignments may not be considered “securities,” and purchasers, such as the Fund, therefore may not be entitled to rely on the anti-fraud protections of the federal securities laws. Additionally, because the Adviser, in the course of investing the Fund’s assets in loans, may have access to material non-public information regarding the borrower, the ability of the Fund to purchase or sell publicly-traded securities of such borrowers may be restricted. In addition, to the extent the Fund invests in non-U.S. bank loan investments, those investments also are subject to the risks of foreign investment, including Eurozone risk.
If the Fund purchases a participation interest, it may only be able to enforce its rights through the lender and may assume the credit risk of both the borrower and the lender. There are also risks involved in purchasing assignments. If a loan is foreclosed, the Fund may become part owner of any collateral securing the loan and may bear the costs and liabilities associated with owning and disposing of any collateral. The Fund could be held liable as a co-lender. In addition, there is no assurance that the liquidation of any collateral from a secured loan would satisfy a borrower’s obligations or that any collateral could be liquidated. There may be a number of intermediate participants in bank loan transactions and loan agreements that have specific rights, obligations, terms, and conditions. As such, any number of factors in an investment in bank loans could cause the Fund to lose income or principal on a particular investment, which in turn could affect the Fund’s returns, and you could lose money.
Interest rates on floating rate bank loans adjust with interest rate changes and/or issuer credit quality, and unexpected changes in such rates could result in losses to the Fund. Additionally, borrowers may pay back principal in whole or part, prior to scheduled due dates. Such prepayment may result in the Fund realizing less income on a particular investment and replacing the floating rate bank loan with a less attractive security, which may provide less return to the Fund.
Bank loans are generally less liquid than many other fixed-income securities and may be subject to restrictions on resale. Transactions in bank loans may take more than seven days to settle. As a result, the proceeds related to the sale of bank loans may not be available to make additional investments or to meet the Fund’s redemption obligations until a substantial period after the sale of the loans. To the extent that extended settlement creates short-term liquidity needs, the Fund may
57 | Janus Investment Fund

satisfy these needs by holding additional cash or selling other investments (potentially at an inopportune time, which could result in losses to the Fund).
The Fund may not be able to identify and invest in attractive floating rate bank loans, such as senior loans, as the market for such investments may be limited in certain economic conditions or because of a high number of potential purchasers of assignments and participations. The Fund may also invest in other floating rate debt securities or other investments. For example, the Fund may invest in junior or subordinated loans or unsecured loans. Such loans may not provide desired returns or may increase the potential for loss of income or principal. Bank loan investments may be generally considered speculative and risks arising from the Fund’s investments in bank loans may be similar to those of investments in “junk” bonds or below investment grade investments. The Fund’s investments in bank loans may be more sensitive to economic changes, political changes, or adverse developments specific to the borrower than higher quality investments.
Bridge Loan Risk.Investments in bridge loans subject the Fund to certain risks in addition to those described above. In addition, any delay in obtaining permanent financing subjects the bridge loan investor to increased risk. A borrower’s use of bridge loans also involves the risk that the borrower may be unable to locate permanent financing to replace the bridge loan, which may impair the borrower’s perceived creditworthiness.
DIP Loan Risk.Investments in DIP loans are subject to the risk that the entity will not emerge from bankruptcy and will be forced to liquidate its assets. In the event of liquidation, the Fund’s only recourse will be against the property securing the DIP loan.
Mezzanine Loan Risk.Mezzanine loans generally are rated below investment grade, and frequently are unrated. Because mezzanine loans typically are the most subordinated debt obligation in an issuer’s capital structure, they are subject to the additional risk that the cash flow of the related borrower and any property securing the loan may be insufficient to repay the loan after the related borrower pays off any senior obligations. Mezzanine loans, which are usually issued in private placement transactions, may be considered illiquid. In addition, they are often used by smaller companies that may be highly leveraged, and in turn may be subject to a higher risk of default. Investment in mezzanine loans is a specialized practice that depends more heavily on independent credit analysis than investments in other fixed-income securities.
Market Risk.The value of a Fund’s portfolio may decrease if the value of one or more issuers in the Fund’s portfolio decreases. Further, regardless of how well individual companies or securities perform, the value of a Fund’s portfolio could also decrease if there are deteriorating economic or market conditions, including, but not limited to, a general decline in prices on the stock markets, a general decline in real estate markets, a decline in commodities prices, or if the market favors different types of securities than the types of securities in which the Fund invests. If the value of the Fund’s portfolio decreases, the Fund’s net asset value will also decrease, which means if you sell your shares in the Fund you may lose money. Market risk may affect a single issuer, industry, economic sector, or the market as a whole.
The increasing interconnectivity between global economies and financial markets increases the likelihood that events or conditions in one region or financial market may adversely impact issuers in a different country, region or financial market. Social, political, economic and other conditions and events, such as natural disasters, health emergencies (e.g., epidemics and pandemics), terrorism, conflicts, including related sanctions, and social unrest, could reduce consumer demand or economic output, result in market closures, travel restrictions and/or quarantines, and generally have a significant impact on the global economies and financial markets.
COVID-19 Pandemic.The effects of COVID-19 have contributed to increased volatility in global financial markets and have affected and may continue to affect certain countries, regions, issuers, industries and market sectors more dramatically than others. These conditions and events could have a significant impact on a Fund and its investments, a Fund’s ability to meet redemption requests, and the processes and operations of a Fund’s service providers, including the Adviser.
Russia/Ukraine Invasion. Russia launched a large-scale invasion of Ukraine on February 24, 2022. The extent and duration of the military action, resulting sanctions and resulting future market disruptions in the region are impossible to predict, but could be significant and have a severe adverse effect on the region, including significant negative impacts on the economy and the markets for certain securities and commodities, such as oil and natural gas, as well as other sectors.
Money Market Fund Investment Risk.A Fund may have cash balances that have not been invested in portfolio securities, which may be used to purchase shares of affiliated or non-affiliated money market funds, or cash management pooled investment vehicles that operate as money market funds, as part of a cash sweep program. By investing in a money market fund, a Fund will be exposed to the investment risks of the money market fund in direct proportion to such investment. The
58 | Janus Investment Fund

money market fund may not achieve its investment objective and a Fund may lose money. To the extent a Fund transacts in instruments such as derivatives, such Fund may hold investments, which may be significant, in money market fund shares to cover its obligations resulting from such Fund’s investments in derivatives. An investment in a money market fund is not a bank deposit and is not insured or guaranteed by any bank, the Federal Deposit Insurance Corporation or any other government agency. There can be no assurance that a money market fund will maintain a $1.00 per share net asset value (“NAV”) at all times. Factors that could adversely affect the value of a money market fund’s shares include, among other things, a sharp rise in interest rates, an illiquid market for the securities held by the money market fund, a high volume of redemption activity in a fund’s shares, and a credit event or credit rating downgrade affecting one or more of the issuers of securities held by the money market fund. In addition, the failure of even an unrelated money market fund to maintain a stable NAV could create a widespread risk of increased redemption pressures on all money market funds, potentially jeopardizing the stability of their NAVs. Certain money market funds have in the past failed to maintain stable NAVs, and there can be no assurance that such failures and resulting redemption pressures will not impact money market funds in the future.
Rules adopted by the Securities and Exchange Commission (the “SEC”) require, among other things, certain money market funds to cause transactions in shares of these funds to be effected using a fund’s NAV per share calculated out to the fourth decimal point (e.g., $1.0000 instead of $1.00). “Government Money Market Funds” and “Retail Money Market Funds” as defined in Rule 2a-7 under the Investment Company Act of 1940, as amended, are not subject to the floating NAV requirements. In addition, certain money market funds may impose a fee upon sale of shares or may temporarily suspend the ability to sell shares of the money market fund if the money market fund’s liquidity falls below required minimums because of market conditions or other factors.
There can be no assurance that a Fund’s investments in money market funds are not adversely affected by reforms to money market regulation that may be adopted by the SEC or other regulatory authorities.
In addition to the fees and expenses that a Fund directly bears, a Fund indirectly bears the fees and expenses of any money market fund in which it invests.
Mortgage- and Asset-Backed Securities Risk.Rising interest rates tend to extend the duration of, or reduce the rate of prepayments on, both commercial mortgage-backed securities (“CMBS”) and residential mortgage-backed securities (“RMBS”), making them more sensitive to changes in interest rates (“extension risk”). As a result, in a period of rising interest rates, the price of mortgage-backed securities may fall, causing a Fund that holds mortgage-backed securities to exhibit additional volatility. Mortgage-backed securities are also subject to prepayment risk. When interest rates decline, borrowers may pay off their mortgages sooner than expected. This can reduce a Fund’s returns because the Fund will have to reinvest that money at lower prevailing interest rates. Investments in certain mortgage-backed securities, including those comprised of subprime mortgages, may be subject to a higher degree of credit risk, valuation risk, and liquidity risk than various other types of fixed-income securities. Additionally, although mortgage-backed securities are generally supported by some form of government or private guarantee and/or insurance, there is no assurance that guarantors or insurers will meet their obligations.
CMBS are subject to certain other risks. The market for CMBS developed more recently than that for RMBS and is relatively small in terms of outstanding principal amount of issues compared to the RMBS market. CMBS are also subject to risks associated with a lack of standardized terms, shorter maturities than residential mortgage loans, and payment of all or substantially all of the principal at maturity, rather than regular amortization of principal. Moreover, the type and use of a particular commercial property may add to the risk of CMBS investments. Adverse changes in economic conditions and circumstances are more likely to have an adverse impact on mortgage-backed securities secured by loans on commercial properties than on those secured by residential properties.
Similarly, the value of a Fund’s investments in asset-backed securities may be adversely affected by changes in interest rates, factors concerning the interests in and structure of the issuer or originator of the receivables, the creditworthiness of the entities that provide any supporting letters of credit, surety bonds, or other credit or liquidity enhancements, and/or the market’s assessment of the quality of the underlying assets. Generally, the originating bank or credit provider is neither the obligor nor the guarantor of the security, and interest and principal payments ultimately depend upon payment of the underlying loans by individuals. A Fund could incur a loss if the underlying loans are not paid. In addition, most asset-backed securities are subject to prepayment risk in a declining interest rate environment. The impact of prepayments on the
59 | Janus Investment Fund

value of asset-backed securities may be difficult to predict and may result in greater volatility. Rising interest rates tend to extend the duration of asset-backed securities, making them more volatile and sensitive to changing interest rates.
Nondiversification Risk.Janus Henderson Contrarian Fund and Janus Henderson Forty Fund are classified as nondiversified under the Investment Company Act of 1940, as amended. As a result, an increase or decrease in the value of a single security held by a Fund may have a greater impact on the Fund’s net asset value and total return. Being nondiversified may also make a Fund more susceptible to financial, economic, political, or other developments that may impact a security. Although each Fund may satisfy the requirements for a diversified fund, and has from time to time operated as diversified, each Fund’s nondiversified classification gives the Fund’s portfolio manager more flexibility to hold larger positions in securities than a fund that is classified as diversified.
Portfolio Management Risk.The Funds are actively managed investment portfolios and are therefore subject to the risk that the investment strategies and research process employed for the Funds may fail to produce the intended results. A Fund may underperform its benchmark index or other mutual funds with similar investment objectives.
Private Placements and Other Restricted Securities Risk.Investments in private placements and other restricted securities could decrease a Fund’s liquidity profile or prevent a Fund from disposing of them promptly at advantageous prices. Private placements and restricted securities may be less liquid than other investments because such securities may not always be readily sold in broad public markets and may have no active trading market. As a result, they may be difficult to value because market quotations may not be readily available. Transaction costs may be higher for these securities, and a Fund may get only limited information about the issuer of a private placement or other restricted security.
REIT Risk.To the extent that a Fund holds REITs and REIT-like entities, it may be subject to the additional risks associated with REIT and REIT-like investments. REITs and REIT-like entities are subject to heavy cash flow dependency to allow them to make distributions to their shareholders. The prices of equity REITs are affected by changes in the value of the underlying property owned by the REITs, changes in capital markets and interest rates, management skill in running a REIT, and the creditworthiness of the REIT. The prices of mortgage REITs are affected by the quality of any credit they extend, the creditworthiness of the mortgages they hold, as well as by the value of the property that secures the mortgages. In addition, mortgage REITs (similar to direct investments in mortgage-backed securities) are subject to prepayment risk. Equity REITs and mortgage REITs are subject to heavy cash flow dependency, defaults by borrowers, and self-liquidation. There is also the risk that borrowers under mortgages held by a REIT or lessees of a property that a REIT owns may be unable to meet their obligations to the REIT. In the event of a default by a borrower or lessee, the REIT may incur substantial costs associated with protecting its investments. While equity REITs and mortgage REITs may provide exposure to a large number of properties, such properties may be concentrated in a particular industry, region, or housing type, making such investments more vulnerable to unfavorable developments to economic or market events. Certain “special purpose” REITs in which a Fund may invest focus their assets in specific real property sectors, such as hotels, shopping malls, nursing homes, or warehouses, and are therefore subject to the specific risks associated with adverse developments in these sectors. A Fund’s shareholders will indirectly bear their proportionate share of the REIT’s expenses, in addition to their proportionate share of the Fund’s expenses. The value of investments in REOCs will generally be affected by the same factors that adversely affect REIT investments; however, REOCs may also be adversely affected by income streams derived from businesses other than real estate ownership.
Additionally, a REIT that fails to comply with federal tax requirements affecting REITs may be subject to federal income taxation, or the federal tax requirement that a REIT distribute substantially all of its net income to its shareholders may result in a REIT having insufficient capital for future expenditures. REITs are also subject to certain provisions under federal tax law and the failure of a company to qualify as a REIT could have adverse consequences for a Fund, including significantly reducing the return to the Fund on its investment in such company.
Small- and Mid-Sized Companies Risk.A Fund’s investments in securities issued by small- and mid-sized companies, which can include smaller, start-up companies offering emerging products or services, may involve greater risks than are customarily associated with larger, more established companies. For example, while small- and mid-sized companies may realize more substantial growth than larger or more established issuers, they may also suffer more significant losses as a result of their narrow product lines, limited operating history, greater exposure to competitive threats, limited financial resources, limited trading markets, and the potential lack of management depth. Securities issued by small- and mid-sized companies tend to be more volatile and somewhat more speculative than securities issued by larger or more established companies and may underperform as compared to the securities of larger or more established companies. These holdings are also subject to wider
60 | Janus Investment Fund

price fluctuations and tend to be less liquid than stocks of larger or more established companies, which could have a significant adverse effect on a Fund’s returns, especially as market conditions change.
Sovereign Debt Risk.A Fund may invest in U.S. and non-U.S. government debt securities (“sovereign debt”). Some investments in sovereign debt, such as U.S. sovereign debt, are considered low risk. However, investments in sovereign debt, especially the debt of certain emerging market countries, can involve a high degree of risk, including the risk that the governmental entity that controls the repayment of sovereign debt may not be willing or able to repay the principal and/or to pay the interest on its sovereign debt in a timely manner. A sovereign debtor’s willingness or ability to satisfy its debt obligation may be affected by various factors, including its cash flow situation, the extent of its foreign currency reserves, the availability of foreign exchange when a payment is due, the relative size of its debt position in relation to its economy as a whole, the sovereign debtor’s policy toward international lenders, and local political constraints to which the governmental entity may be subject. Sovereign debtors may also be dependent on expected disbursements from foreign governments, multilateral agencies, and other entities. The failure of a sovereign debtor to implement economic reforms, achieve specified levels of economic performance, or repay principal or interest when due may result in the cancellation of third party commitments to lend funds to the sovereign debtor, which may further impair such debtor’s ability or willingness to timely service its debts. A Fund may be requested to participate in the rescheduling of such sovereign debt and to extend further loans to governmental entities, which may adversely affect the Fund’s holdings. In the event of default, there may be limited or no legal remedies for collecting sovereign debt and there may be no bankruptcy proceedings through which the Fund may collect all or part of the sovereign debt that a governmental entity has not repaid. In addition, to the extent a Fund invests in non-U.S. sovereign debt, it may be subject to currency risk.
TBA Commitments Risk.A Fund may enter into “to be announced” or “TBA” commitments. Although TBA securities must meet industry-accepted “good delivery” standards, there can be no assurance that a security purchased on a forward commitment basis will ultimately be issued or delivered by the counterparty. If the counterparty to a transaction fails to deliver the securities, a Fund could suffer a loss. Because TBA commitments do not require the delivery of a specific security, the characteristics of a security delivered to a Fund may be less favorable than expected. There is a risk that the security that a Fund buys will lose value between the purchase and settlement dates. When a Fund sells a TBA security prior to settlement, it does not participate in future gains or losses with respect to the security. A Fund is generally not required to pay for the TBA security until the settlement date and, as a result, if the Fund remains substantially fully invested at a time when TBA commitment purchases are outstanding, the purchases may result in a form of leverage.
Warrants and Rights Risk.The price, performance and liquidity of warrants and rights to purchase equity securities are typically linked to the underlying stock. These instruments have many characteristics of convertible securities and, similarly, will react to variations in the general market for equity securities. Rights are similar to warrants, but normally have a short duration and are distributed directly by the issuer to its shareholders. Rights and warrants have no voting rights, receive no dividends and have no rights with respect to the assets of the issuer.
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Management of the Funds
Janus Henderson Investors US LLC (the “Adviser”), 151 Detroit Street, Denver, Colorado 80206-4805, is the investment adviser to each Fund. The Adviser is responsible for the day-to-day management of the Funds’ investment portfolios and furnishes continuous advice and recommendations concerning the Funds’ investments. The Adviser also provides certain administration and other services and is responsible for other business affairs of each Fund.
The Adviser (together with its predecessors and affiliates) has served as investment adviser to the Janus Henderson mutual funds since 1970 and currently serves as investment adviser to all of the Janus Henderson mutual funds as well as the Janus Henderson exchange-traded funds, acts as subadviser for a number of private-label mutual funds, and provides separate account advisory services for institutional accounts and other unregistered products.
The Trust and the Adviser have received an exemptive order from the SEC that permits the Adviser, subject to the approval of the Trustees, to appoint or replace certain subadvisers to manage all or a portion of a Fund’s assets and enter into, amend, or terminate a subadvisory agreement with certain subadvisers without obtaining shareholder approval (a “manager-of-managers structure”). The manager-of-managers structure applies to subadvisers that are not affiliated with the Trust or the Adviser (“non-affiliated subadvisers”), as well as any subadviser that is an indirect or direct “wholly-owned subsidiary” (as such term is defined by the Investment Company Act of 1940, as amended) of the Adviser or of another company that, indirectly or directly, wholly owns the Adviser (collectively, “wholly-owned subadvisers”).
Pursuant to the order, the Adviser, with the approval of the Trustees, has the discretion to terminate any subadviser and allocate and, as appropriate, reallocate a Fund’s assets among the Adviser and any other non-affiliated subadvisers or wholly-owned subadvisers (including terminating a non-affiliated subadviser and replacing it with a wholly-owned subadviser). To the extent that a Fund’s assets are allocated to one or more subadvisers, the Adviser, subject to oversight by the Trustees, would have the responsibility to oversee such subadviser(s) to a Fund and to recommend for approval by the Trustees, the hiring, termination, and replacement of a subadviser for a Fund. In the event that the Adviser hires a subadviser pursuant to the manager-of-managers structure, the affected Janus Henderson fund would provide shareholders with information about the subadviser and subadvisory agreement within 90 days.
Shareholders of each Fund, with the exception of Janus Henderson Balanced Fund, Janus Henderson Contrarian Fund, Janus Henderson Enterprise Fund, and Janus Henderson Triton Fund, have approved the use of a manager-of-managers structure.
The Adviser furnishes certain administration, compliance, and accounting services to the Funds, including providing office space for the Funds and providing personnel to serve as officers to the Funds. The Funds reimburse the Adviser for certain of its costs in providing these services (to the extent the Adviser seeks reimbursement and such costs are not otherwise waived). These costs include some or all of the salaries, fees, and expenses of the Adviser employees and Fund officers, including the Funds’ Chief Compliance Officer and compliance staff, that provide specified administration and compliance services to the Funds. The Funds pay these costs based on out-of-pocket expenses incurred by the Adviser, and these costs are separate and apart from advisory fees and other expenses paid in connection with the investment advisory services the Adviser provides to the Funds.
Each Fund pays the Adviser an investment advisory fee and incurs expenses, including administrative services fees payable pursuant to the Transfer Agency Agreement, custodian fees and expenses, legal and auditing fees, printing and mailing costs of sending reports and other information to existing shareholders, and Independent Trustees’ fees and expenses. Each Fund’s investment advisory fee is calculated daily and paid monthly. Each Fund’s advisory agreement details the investment advisory fee and other expenses that each Fund must pay.
The following tables reflect each Fund’s contractual investment advisory fee rate or base fee rate, as applicable (expressed as an annual rate), as well as the actual investment advisory fee rate paid by each Fund to the Adviser (gross and net of fee waivers).
Fixed-Rate Investment Advisory Fee
The Funds reflected below pay an investment advisory fee at a fixed rate based on each Fund’s average daily net assets.
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Fund Name
Average Daily
Net Assets
of the Fund
Contractual
Investment
Advisory Fee (%)
(annual rate)
Actual Investment
Advisory Fee
Rate(1) (%) (for
the fiscal year ended
September 30, 2022
Janus Henderson Balanced Fund
All Asset Levels
0.55
0.55
Janus Henderson Enterprise Fund
All Asset Levels
0.64
0.64
Janus Henderson Growth and Income Fund
All Asset Levels
0.60
0.60
Janus Henderson Triton Fund
All Asset Levels
0.64
0.64
Janus Henderson Venture Fund
All Asset Levels
0.64
0.64
(1) 
The Adviser has agreed to waive its investment advisory fee and/or reimburse operating expenses to the extent that each Fund’s total annual fund operating expenses (excluding shareholder services fees, such as transfer agency fees (including out-of-pocket costs), brokerage commissions, interest, dividends, taxes, acquired fund fees and expenses, and extraordinary expenses) exceed certain levels for at least a one-year period commencing on January 27, 2023. Application of an expense waiver and its effect on annual fund operating expenses is reflected, when applicable, in the “Fees and Expenses of the Fund” table in each Fund Summary of the Prospectus, and additional information is included under “Expense Limitations” below. The waivers are reflected in the actual investment advisory fee rates shown.
Performance-Based Investment Advisory Fee
As reflected in the table below, Janus Henderson Contrarian Fund, Janus Henderson Research Fund, and Janus Henderson Forty Fund each pay an investment advisory fee rate that may adjust up or down based on each Fund’s performance relative to the cumulative investment record of its benchmark index over a rolling 36-month performance measurement period. The second column in the table below shows each Fund’s base fee rate. The third column shows the full performance rate for outperformance or underperformance during the measurement period relative to each Fund’s respective benchmark index. The fourth column shows the performance adjusted investment advisory fee rate, which is equal to each Fund’s base fee rate plus or minus the performance adjustment over the period without any fee waivers. The fifth column shows the actual investment advisory fee rate, which is equal to each Fund’s base fee rate plus or minus the performance adjustment over the period and includes any applicable fee waiver. This fifth column shows the actual amount of the investment advisory fee rate paid by each Fund as of the end of the fiscal year.
As an example, if a Fund outperformed its benchmark index over the performance measurement period by its full performance rate (listed in the table below), the advisory fee would increase by 0.15% (assuming constant assets). Conversely, if a Fund underperformed its benchmark index over the performance measurement period by its full performance rate (listed in the table below), the advisory fee would decrease by 0.15% (assuming constant assets). Actual performance within the full range of the full performance rate may result in positive or negative incremental adjustments to the advisory fee of greater or less than 0.15%. Additional details discussing the performance fee are included below with further description in the SAI.
Fund Name
Base Fee
Rate (%)
Full
Performance
Rate vs.
Benchmark Index
Performance
Adjusted
Investment
Advisory Fee
Rate (%)
Actual Investment
Advisory Fee
Rate(1) (%) (for
the fiscal year ended
September 30, 2022)
Janus Henderson Contrarian Fund
0.64
± 7.00%
0.70
0.70
Janus Henderson Research Fund
0.64
± 5.00%
0.50
0.50
Janus Henderson Forty Fund
0.64
± 8.50%
0.55
0.55
(1) 
The Adviser has agreed to waive its investment advisory fee and/or reimburse operating expenses to the extent that each Fund’s total annual fund operating expenses (excluding any performance adjustments to management fees, shareholder servicing fees, such as transfer agency fees (including out-of-pocket costs), brokerage commissions, interest, dividends, taxes, acquired fund fees and expenses, and extraordinary expenses) exceed certain levels for at least a one-year period commencing on January 27, 2023. Application of an expense waiver and its effect on annual fund operating expenses is reflected, when applicable, in the “Fees and Expenses of the Fund” table in each Fund Summary of the Prospectus, and additional information is included under “Expense Limitations” below. The waivers and any applicable performance adjustments are reflected in the actual investment advisory fee rates shown.
For Janus Henderson Contrarian Fund, Janus Henderson Research Fund, and Janus Henderson Forty Fund, the investment advisory fee rate is determined by calculating a base fee (shown in the previous table) and applying a performance
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adjustment (described in further detail below). The performance adjustment either increases or decreases the base fee depending on how well each Fund has performed relative to its benchmark index as shown below:
Fund Name
Benchmark Index
Janus Henderson Contrarian Fund
S&P 500 Index
Janus Henderson Research Fund
Russell 1000 Growth Index
Janus Henderson Forty Fund
Russell 1000 Growth Index
The calculation of the performance adjustment applies as follows:
Investment Advisory Fee = Base Fee Rate +/– Performance Adjustment
The investment advisory fee rate paid to the Adviser by each Fund in the table above consists of two components: (1) a base fee calculated by applying the contractual fixed rate of the advisory fee to the Fund’s average daily net assets during the previous month (“Base Fee Rate”), plus or minus (2) a performance-fee adjustment (“Performance Adjustment”) calculated by applying a variable rate of up to 0.15% (positive or negative) to the Fund’s average daily net assets during the applicable performance measurement period. The performance measurement period generally is the previous 36 months, although no Performance Adjustment is made until a Fund’s performance-based fee structure has been in effect for at least 12 months.
No Performance Adjustment is applied unless the difference between a Fund’s investment performance and the cumulative investment record of the Fund’s benchmark index is 0.50% or greater (positive or negative) during the applicable performance measurement period. The Base Fee Rate is subject to an upward or downward Performance Adjustment for every full 0.50% increment by which the Fund outperforms or underperforms its benchmark index. Because the Performance Adjustment is tied to a Fund’s relative performance compared to its benchmark index (and not its absolute performance), the Performance Adjustment could increase the Adviser’s fee even if the Fund’s Shares lose value during the performance measurement period and could decrease the Adviser’s fee even if the Fund’s Shares increase in value during the performance measurement period. For purposes of computing the Base Fee Rate and the Performance Adjustment, net assets are averaged over different periods (average daily net assets during the previous month for the Base Fee Rate, versus average daily net assets during the performance measurement period for the Performance Adjustment). Performance of a Fund is calculated net of expenses whereas a Fund’s benchmark index does not have any fees or expenses. Reinvestment of dividends and distributions is included in calculating both the performance of a Fund and the Fund’s benchmark index. The Base Fee Rate is calculated and accrued daily. The Performance Adjustment is calculated monthly in arrears and is accrued throughout the month. The investment advisory fee is paid monthly in arrears. Under extreme circumstances involving underperformance by a rapidly shrinking Fund, the dollar amount of the Performance Adjustment could be more than the dollar amount of the Base Fee Rate. In such circumstances, the Adviser would reimburse the applicable Fund.
The application of an expense limit, if any, will have a positive effect upon a Fund’s performance and may result in an increase in the Performance Adjustment. It is possible that the cumulative dollar amount of additional compensation ultimately payable to the Adviser may, under some circumstances, exceed the cumulative dollar amount of management fees waived by the Adviser.
The investment performance of a Fund’s Class A Shares (waiving the upfront sales load) for the performance measurement period is used to calculate the Performance Adjustment. After the Adviser determines whether a particular Fund’s performance was above or below its benchmark index by comparing the investment performance of the Fund’s load-waived Class A Shares against the cumulative investment record of that Fund’s benchmark index, the Adviser applies the same Performance Adjustment (positive or negative) across each other class of shares of the Fund, as applicable. It is not possible to predict the effect of the Performance Adjustment on future overall compensation to the Adviser since it depends on the performance of each Fund relative to the record of the Fund’s benchmark index and future changes to the size of each Fund.
A discussion regarding the basis for the Trustees’ approval of the Funds’ investment advisory agreements is included in each Fund’s annual report (for the period ending September 30) and semiannual report (for the period ending March 31) to shareholders. You can request the Funds’ annual or semiannual reports (as they become available), free of charge, by contacting a Janus Henderson representative at 1-800-525-3713. The reports are also available, free of charge, at janushenderson.com/reports.
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Expense Limitations
The Adviser has contractually agreed to waive the advisory fee payable by each Fund and/or reimburse expenses in an amount equal to the amount, if any, that the Fund’s total annual fund operating expenses, including the investment advisory fee, but excluding any performance adjustments to management fees, shareholder servicing fees, such as transfer agency fees (including out-of-pocket costs), brokerage commissions, interest, dividends, taxes, acquired fund fees and expenses, and extraordinary expenses, exceed the annual rate shown below. The Adviser has agreed to continue each waiver for at least a one-year period commencing on January 27, 2023. For information about how the expense limit affects the total expenses of each Fund, if applicable, see the “Fees and Expenses of the Fund” table in each Fund Summary of the Prospectus.
Fund Name
Expense Limit Percentage (%)
Janus Henderson Balanced Fund
0.68
Janus Henderson Contrarian Fund(1)
0.75
Janus Henderson Enterprise Fund
0.80
Janus Henderson Forty Fund(1)
0.68
Janus Henderson Growth and Income Fund
0.67
Janus Henderson Research Fund(1)
0.68
Janus Henderson Triton Fund(2)
0.86
Janus Henderson Venture Fund(2)
0.86
(1) 
The Fund pays an investment advisory fee rate that may adjust up or down based on the Fund’s performance relative to its benchmark index during a measurement period. Because a fee waiver will have a positive effect upon the Fund’s performance, a fee waiver that is in place during the period when the performance adjustment applies may affect the performance adjustment in a way that is favorable to the Adviser.
(2) 
The previous expense limit (for the one-year period commencing January 28, 2022) was 0.92%.
Janus Henderson Balanced Fund
Co-Portfolio Managers Jeremiah Buckley, Michael Keough, and Greg Wilensky are responsible for the day-to-day management of the Fund. Messrs. Keough and Wilensky focus on the fixed-income portion of the Fund. Mr. Buckley focuses on the equity portion of the Fund.
Jeremiah Buckley, CFA, is Executive Vice President and Co-Portfolio Manager of Janus Henderson Balanced Fund, which he has co-managed since December 2015. Mr. Buckley is also Portfolio Manager of other Janus Henderson accounts. He holds a Bachelor of Arts degree in Economics from Dartmouth College, where he graduated Phi Beta Kappa. Mr. Buckley holds the Chartered Financial Analyst designation.
Michael Keough is Executive Vice President and Co-Portfolio Manager of Janus Henderson Balanced Fund, which he has co-managed since December 2019. Mr. Keough is also Portfolio Manager of other Janus Henderson accounts. He joined the Adviser in January 2007. Mr. Keough holds a Bachelor of Science degree in Business/Management from the United States Air Force Academy.
Greg Wilensky, CFA, is Head of U.S. Fixed Income of Janus Henderson Investors. He is Executive Vice President and Co-Portfolio Manager of Janus Henderson Balanced Fund, which he has co-managed since February 2020. Mr. Wilensky is also Portfolio Manager of other Janus Henderson accounts. Prior to joining the Adviser in January 2020, he was Director and Lead Portfolio Manager of the U.S. Multi-Sector Fixed Income team at AllianceBernstein since 2007. Mr. Wilensky holds a Bachelor of Science degree in Business Administration from Washington University and a Master’s degree in Business Administration from the University of Chicago. He holds the Chartered Financial Analyst designation.
Janus Henderson Contrarian Fund
Nick Schommer, CFA, is Executive Vice President and Portfolio Manager of Janus Henderson Contrarian Fund, which he has managed since July 2017. Mr. Schommer is also Portfolio Manager of other Janus Henderson accounts. He holds a Bachelor of Science degree in Chemistry from the U.S. Military Academy at West Point, where he was recognized as a Distinguished Cadet and Phi Kappa Phi, and a Master of Business Administration degree from the UCLA Anderson School of Management. Mr. Schommer holds the Chartered Financial Analyst designation.
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Janus Henderson Enterprise Fund
Co-Portfolio Managers Brian Demain and Cody Wheaton are responsible for the day-to-day management of the Fund. Mr. Demain, as Lead Portfolio Manager, has the authority to exercise final decision-making on the overall portfolio.
Brian Demain, CFA, is Executive Vice President and Lead Portfolio Manager of Janus Henderson Enterprise Fund, which he has managed or co-managed since November 2007. Mr. Demain is also Portfolio Manager of other Janus Henderson accounts. He holds a Bachelor of Arts degree (summa cum laude) in Economics from Princeton University, where he was a recipient of the Daniel L. Rubinfeld ’67 Prize in Empirical Economics for his senior thesis. Mr. Demain holds the Chartered Financial Analyst designation.
Cody Wheaton, CFA, is Executive Vice President and Co-Portfolio Manager of Janus Henderson Enterprise Fund, which he has co-managed since July 2016. Mr. Wheaton is also Portfolio Manager of other Janus Henderson accounts and performs duties as an analyst. He holds Bachelor of Arts degrees in Economics and Government from Dartmouth College. Mr. Wheaton holds the Chartered Financial Analyst designation.
Janus Henderson Forty Fund
Co-Portfolio Managers A. Douglas Rao, Brian Recht, and Nick Schommer jointly share responsibility for the day-to-day management of the Fund, with no limitation on the authority of one co-portfolio manager in relation to the others.
A. Douglas Rao is Executive Vice President and Co-Portfolio Manager of Janus Henderson Forty Fund, which he has managed or co-managed since June 2013. Mr. Rao is also Portfolio Manager of other Janus Henderson accounts. He holds a Bachelor of Arts degree in History from the University of Virginia and a Master of Business Administration degree from the University of California, Los Angeles.
Brian Recht is Executive Vice President and Co-Portfolio Manager of Janus Henderson Forty Fund, which he has co-managed since March 2022. Mr. Recht is also Portfolio Manager of other Janus Henderson accounts and performs duties as an analyst. He joined the Adviser in 2015. Mr. Recht holds a Bachelor of Arts degree (summa cum laude) in Government from Dartmouth College where he was a member of Phi Beta Kappa. He also holds a Master of Business Administration degree from the Stanford Graduate School of Business and a Juris Doctorate from Stanford Law School.
Nick Schommer, CFA, is Executive Vice President and Co-Portfolio Manager of Janus Henderson Forty Fund, which he has co-managed since January 2016. Mr. Schommer is also Portfolio Manager of other Janus Henderson accounts. He holds a Bachelor of Science degree in Chemistry from the U.S. Military Academy at West Point, where he was recognized as a Distinguished Cadet and Phi Kappa Phi, and a Master of Business Administration degree from the UCLA Anderson School of Management. Mr. Schommer holds the Chartered Financial Analyst designation.
Janus Henderson Growth and Income Fund
Jeremiah Buckley, CFA, is Executive Vice President and Portfolio Manager of Janus Henderson Growth and Income Fund, which he has managed or co-managed since July 2014. Mr. Buckley is also Portfolio Manager of other Janus Henderson accounts. He holds a Bachelor of Arts degree in Economics from Dartmouth College, where he graduated Phi Beta Kappa. Mr. Buckley holds the Chartered Financial Analyst designation.
Janus Henderson Research Fund
The Central Research Team selects investments for Janus Henderson Research Fund and has done so since February 2006. The Central Research Team consists of the Adviser’s equity research analysts overseen by the Portfolio Oversight Team led by Matthew Peron.
Matthew Peron is the Adviser’s Director of Research and Executive Vice President of Janus Henderson Research Fund. Mr. Peron is primarily responsible for the day-to-day operations of the Fund. He leads the Portfolio Oversight Team that reviews the Fund’s risks, overall structure, and guidelines and has done so since April 2020. Mr. Peron is also Portfolio Manager of other Janus Henderson accounts. He holds a Bachelor of Science degree in Electrical Engineering from Swarthmore College and a Master of Business Administration degree from the University of Chicago. Prior to joining the Adviser in April 2020, Mr. Peron was Chief Investment Officer for City National Rochdale since 2018. Prior to serving in that role, he held various positions at Northern Trust, including serving as Executive Vice President and Managing Director of Global Equity, and as a member of the asset allocation committee.
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Janus Henderson Triton Fund and Janus Henderson Venture Fund
Co-Portfolio Managers Jonathan D. Coleman and Scott Stutzman are responsible for the day-to-day management of the Funds. Mr. Coleman, as Lead Portfolio Manager, has the authority to exercise final decision-making on the overall portfolios.
Jonathan D. Coleman, CFA, is Executive Vice President and Lead Portfolio Manager of Janus Henderson Triton Fund and Janus Henderson Venture Fund, which he has managed or co-managed since May 2013. Mr. Coleman is also Portfolio Manager of other Janus Henderson accounts. He holds a Bachelor of Arts degree in Political Economy and Spanish from Williams College, where he was a member of Phi Beta Kappa. Mr. Coleman holds the Chartered Financial Analyst designation.
Scott Stutzman, CFA, is Executive Vice President and Co-Portfolio Manager of Janus Henderson Triton Fund and Janus Henderson Venture Fund, which he has co-managed since July 2016. Mr. Stutzman is also Portfolio Manager of other Janus Henderson accounts and performs duties as an analyst. He holds a Bachelor of Science degree in Industrial Engineering and Management Sciences from Northwestern University, and a Master of Business Administration degree, with a concentration in Finance, from Columbia University. Mr. Stutzman holds the Chartered Financial Analyst designation.
Information about the portfolio managers’ and/or investment personnel’s compensation structure and other accounts managed, as well as the aggregate range of their individual ownership in the Fund(s) that they manage and certain other mutual funds advised by the Adviser, is included in the SAI.
Conflicts of Interest
The Adviser manages other funds and numerous other accounts, which may include separate accounts and other pooled investment vehicles, such as hedge funds. Side-by-side management of multiple accounts, including the management of a cash collateral pool for securities lending and investing the Janus Henderson funds’ cash, may give rise to conflicts of interest among those accounts, and may create potential risks, such as the risk that investment activity in one account may adversely affect another account. For example, short sale activity in an account could adversely affect the market value of long positions in one or more other accounts (and vice versa). Side-by-side management may raise additional potential conflicts of interest relating to the allocation of investment opportunities and the aggregation and allocation of trades. Additionally, the Adviser manages the Janus Henderson “funds of funds,” which are funds that invest primarily in other mutual funds that are managed by the Adviser. Because the Adviser manages the Janus Henderson “funds of funds” and the Janus Henderson funds, it is subject to certain potential conflicts of interest when allocating the assets of a Janus Henderson “fund of funds” among such Janus Henderson funds. To the extent that a Fund is an underlying fund in a Janus Henderson “fund of funds,” a potential conflict of interest arises when allocating the assets of the Janus Henderson “fund of funds” to that Fund. Purchases and redemptions of fund shares by a Janus Henderson “fund of funds” due to reallocations or rebalancings may result in a fund having to sell securities or invest cash when it otherwise would not do so. Such transactions could accelerate the realization of taxable income if sales of securities resulted in gains. In addition, redemptions by a Janus Henderson “fund of funds” could cause actual expenses to increase, or could result in a Fund’s current expenses being allocated over a smaller asset base, which may lead to an increase in the Fund’s expense ratio. The impact of these transactions is likely to be greater when a Janus Henderson “fund of funds” purchases, redeems, or owns a substantial portion of a Fund’s shares. A further discussion of potential conflicts of interest and a discussion of certain procedures intended to mitigate such potential conflicts are contained in the Funds’ SAI.
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CLOSED FUND POLICIES
A Fund may limit sales of its Shares to new investors. If sales of a Fund are limited, it is expected that existing shareholders invested in the Fund would be permitted to continue to purchase Shares through their existing Fund accounts and to reinvest any dividends or capital gains distributions in such accounts, absent highly unusual circumstances. Requests for new accounts into a closed fund would be reviewed by management, taking into consideration eligibility requirements and whether the addition to the fund is believed to negatively impact existing fund shareholders. The closed fund may decline opening new accounts, including eligible new accounts, if it would be in the best interests of the fund and its shareholders. If applicable, additional information regarding general policies and exceptions can be found in a closed fund’s prospectuses.
LIQUIDATION/REORGANIZATION OF A FUND
It is important to know that, pursuant to the Trust’s Amended and Restated Agreement and Declaration of Trust, the Trustees have the authority to merge, liquidate, and/or reorganize a Fund into another fund without seeking shareholder vote or consent.
DISTRIBUTION OF THE Funds
The Funds are distributed by Janus Henderson Distributors US LLC (the “Distributor”), which is a member of the Financial Industry Regulatory Authority, Inc. (“FINRA”). To obtain information about FINRA member firms and their associated persons, you may contact FINRA at www.finra.org, or 1-800-289-9999.
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Distributions
To avoid taxation of the Funds, the Internal Revenue Code of 1986, as amended (the “Internal Revenue Code”), requires each Fund to distribute all or substantially all of its net investment income and any net capital gains realized on its investments at least annually. A return of capital distribution is tax-free to the extent of your basis in your shares and thereafter is treated as a capital gain if you hold your shares as a capital asset. Because a return of capital distribution reduces the basis of your shares, a return of capital distribution may result in a higher capital gain or a lower capital loss when you sell your shares held in a taxable account. Distributions are made at the class level, so they may vary from class to class within a single Fund.
Distribution Schedule
Dividends from net investment income for Janus Henderson Balanced Fund and Janus Henderson Growth and Income Fund are normally declared and distributed in March, June, September, and December. Dividends from net investment income for each of the other Funds are normally declared and distributed in December. In addition, distributions of net capital gains are normally declared and distributed in December. If necessary, dividends and net capital gains may be distributed at other times as well.
How Distributions Affect a Fund’s NAV
Distributions are paid to shareholders as of the record date of a distribution of a Fund, regardless of how long the Shares have been held. Undistributed dividends and net capital gains are included in each Fund’s daily net asset value (“NAV”). The share price of a Fund drops by the amount of the distribution, net of any subsequent market fluctuations. For example, assume that on December 31, a Fund declared a dividend in the amount of $0.25 per share. If the Fund’s share price was $10.00 on December 30, the Fund’s share price on December 31 would be $9.75, barring market fluctuations. You should be aware that distributions from a taxable mutual fund do not increase the value of your investment and may create income tax obligations.
“Buying a Dividend”
If you purchase shares of a Fund just before a distribution, you will pay the full price for the shares and receive a portion of the purchase price back as a taxable distribution. This is referred to as “buying a dividend.” In the above example, if you bought shares on December 30, you would have paid $10.00 per share. On December 31, the Fund would pay you $0.25 per share as a dividend and your shares would now be worth $9.75 per share. Unless your account is set up as a tax-advantaged account, dividends paid to you would be included in your gross income for federal income tax purposes, even though you may not have participated in the increase in NAV of the Fund, whether or not you reinvested the dividends. You should consult with your tax adviser as to potential tax consequences of any distributions that may be paid shortly after purchase.
For your convenience, distributions of net investment income and net capital gains are automatically reinvested in additional Shares of the Fund. To receive distributions in cash, contact a Janus Henderson representative at 1-800-525-3713. Whether reinvested or paid in cash, the distributions may be subject to taxes, unless your shares are held in a qualified tax-advantaged plan or account.
Distribution Options
When you open an account, it will automatically provide for reinvestment of all distributions. If you have a non-retirement account, you may change your distribution option at any time by logging on to janushenderson.com/individual, by calling a Janus Henderson representative, or by writing to the Funds at one of the addresses listed in the Shareholder’s Manual section of this Prospectus. The Funds offer the following options:
Reinvestment Option.You may reinvest your income dividends and capital gains distributions in additional shares.
Cash Option.You may receive your income dividends and capital gains distributions in cash.
Reinvest and Cash Option.You may receive either your income dividends or capital gains distributions in cash and reinvest the other in additional shares.
Redirect Option.You may direct your dividends or capital gains distributions to purchase shares of another Janus Henderson fund.
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The Funds reserve the right to reinvest uncashed dividend and distribution checks into your open non-retirement account at the NAV next computed after the check is cancelled. Subsequent distributions may also be reinvested. For more information, refer to “Shareholder Services and Account Policies.”
TAXES
As with any investment, you should consider the tax consequences of investing in the Funds. The following is a general discussion of certain federal income tax consequences of investing in the Funds. The discussion does not apply to qualified tax-advantaged accounts or other non-taxable entities, nor is it a complete analysis of the federal income tax implications of investing in the Funds. You should consult your tax adviser regarding the effect that an investment in a Fund may have on your particular tax situation, including the federal, state, local, and foreign tax consequences of your investment.
Taxes on Distributions
Distributions by the Funds are subject to federal income tax, regardless of whether the distribution is made in cash or reinvested in additional shares of a Fund. Distributions from net investment income (which includes dividends, interest, and realized net short-term capital gains), other than qualified dividend income, are taxable to shareholders as ordinary income. Distributions of qualified dividend income are taxed to individuals and other noncorporate shareholders at long-term capital gain rates, provided certain holding period and other requirements are satisfied. Distributions of net capital gain (i.e., the excess of net long-term capital gain over net short-term capital loss) are taxable as long-term capital gain, regardless of how long a shareholder has held Fund shares. In certain states, a portion of the distributions (depending on the sources of a Fund’s income) may be exempt from state and local taxes. Individuals, trusts, and estates whose income exceeds certain threshold amounts are subject to an additional 3.8% Medicare contribution tax on net investment income. Net investment income includes dividends paid by a Fund and capital gains from any sale or exchange of Fund shares. A Fund’s net investment income and capital gains are distributed to (and may be taxable to) those persons who are shareholders of the Fund at the record date of such payments. Although a Fund’s total net income and net realized gain are the results of its operations, the per share amount distributed or taxable to shareholders is affected by the number of Fund shares outstanding at the record date. Distributions declared to shareholders of record in October, November, or December and paid on or before January 31 of the succeeding year will be treated for federal income tax purposes as if received by shareholders on December 31 of the year in which the distribution was declared. Generally, account tax information will be made available to shareholders on or before February 15 of each year. Information regarding distributions may also be reported to the Internal Revenue Service (the “IRS”). A portion of a Fund’s distributions received from REITs may be classified as a return of capital for federal income tax purposes. As a result, the Fund is more likely to make distributions that are treated as returns of capital, and possibly in greater amounts, than a fund that does not invest in REITs.
Distributions made by a Fund with respect to Shares purchased through a qualified retirement plan will generally be exempt from current taxation if left to accumulate within the qualified plan. Generally, withdrawals from qualified plans may be subject to federal income tax at ordinary income rates and, if made before age 59 12, a 10% penalty tax may be imposed. The federal income tax status of your investment depends on the features of your qualified plan. For further information, please contact your tax adviser.
Taxes on Sales or Exchanges
Any time you sell or exchange shares of a Fund in a taxable account, it is considered a taxable event. For federal income tax purposes, an exchange is treated the same as a sale. Depending on the purchase price and the sale price, you may have a gain or loss on the transaction. The gain or loss will generally be treated as a long-term capital gain or loss if you held your shares for more than one year and if not held for such period, as a short-term capital gain or loss. Any tax liabilities generated by your transactions are your responsibility. Your ability to deduct capital losses may be limited under the Internal Revenue Code.
The Funds may be required to withhold U.S. federal income tax on all distributions and redemption proceeds to shareholders who fail to provide their correct taxpayer identification number, fail to make certain required certifications, or who have been notified by the IRS that they are subject to backup withholding. The current backup withholding rate is applied.
If a shareholder does not meet the requirements of the Foreign Account Tax Compliance Act (“FATCA”), a Fund may be required to impose a 30% U.S. withholding tax on distributions and proceeds from the sale or other disposition of shares in the Fund. FATCA withholding will generally apply to payments of dividends from net investment income, payments of gross proceeds from sales of Fund shares, and distributions of net capital gains. Proposed Treasury regulations, however, generally
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eliminate withholding under FATCA on gross proceeds, which include certain capital gains distributions and gross proceeds from a sale or disposition of Fund shares. Taxpayers generally may rely on these proposed Treasury regulations until final Treasury regulations are issued. Shareholders should consult their individual tax advisers regarding the possible implications of FATCA.
For Shares purchased on or after January 1, 2012 and sold thereafter from a taxable account, the Janus Henderson funds will report cost basis information to you and to the IRS. Each Fund will permit shareholders to elect their preferred cost basis method. In the absence of an election, the Fund will use an average cost basis method. Please consult your tax adviser to determine the appropriate cost basis method for your particular tax situation and to learn more about how the cost basis reporting laws apply to you and your investments.
Taxation of the Funds
Dividends, interest, and some capital gains received by the Funds on foreign securities may be subject to foreign tax withholding or other foreign taxes. If a Fund is eligible, it may from year to year make the election permitted under Section 853 of the Internal Revenue Code to pass through such taxes to shareholders as a foreign tax credit. If a Fund makes such election, foreign taxes paid by the Fund will be reported to shareholders as income and shareholders may claim a tax credit or deduction for such taxes, subject to certain limitations. If such an election is not made, any foreign taxes paid or accrued will represent an expense to the Funds.
Certain fund transactions may involve short sales, futures, options, swap agreements, hedged investments, and other similar transactions, and may be subject to special provisions of the Internal Revenue Code that, among other things, can potentially affect the character, amount, and timing of distributions to shareholders, and utilization of capital loss carryforwards. The Funds will monitor their transactions and may make certain tax elections and use certain investment strategies where applicable in order to mitigate the effect of these tax provisions, if possible.
The Funds do not expect to pay any federal income or excise taxes because they intend to meet certain requirements of the Internal Revenue Code, including the distribution each year of substantially all their net investment income and net capital gains. It is important that the Funds meet these requirements so that any earnings on your investment will not be subject to federal income tax twice. If a Fund invests in partnerships, it may be subject to state tax liabilities.
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Shareholder’s manual
This Shareholder’s Manual is for those shareholders investing directly with the Funds. This section will help you become familiar with the different types of accounts you can establish with the Adviser. It also explains in detail the wide array of services and features you can establish on your account, as well as describes account policies and fees that may apply to your account. Account policies (including fees), services, and features may be modified or discontinued without shareholder approval or prior notice.
With certain exceptions, the Funds are generally available only to shareholders residing in the United States and employees of the Adviser or its affiliates. For purposes of this policy, the Funds require that a shareholder and/or entity be a U.S. citizen residing in the United States or a U.S. Territory (including overseas U.S. military or diplomatic addresses) or a resident alien residing in the United States or a U.S. Territory with a valid U.S. Taxpayer Identification Number to open an account with a Fund.
The Funds offer multiple classes of shares in order to meet the needs of various types of investors. You should carefully consider which class of shares to purchase. Certain classes have higher expenses than other classes, which may lower the return on your investment. If you would like additional information about the other available share classes, please call 1-800-525-3713.
Online – janushenderson.com – 24 hours a day, 7 days a week
At janushenderson.com/individual* existing shareholders can:
Obtain Fund information and performance
View your personalized performance
Review your account or your complete portfolio
Buy, exchange, and sell Janus Henderson funds
Update personal information
Receive electronic daily transaction confirmations, quarterly and year-end statements, semiannual and annual reports, prospectuses, and tax forms
Analyze the fees associated with your investment (www.finra.org/fundanalyzer)
Open a new account
*
Certain account or transaction types may be restricted from being processed through janushenderson.com. If you would like more information about these restrictions, please contact a Janus Henderson representative.
Janus Henderson XpressLinetm
1-888-979-7737
• 24-hour automated phone system
Janus Henderson Representatives
1-800-525-3713
TDD
For the speech and hearing impaired.
1-800-525-0056
Mailing Address
Janus Henderson
P.O. Box 219109
Kansas City, MO 64121-9109
For Overnight Mail
Janus Henderson
430 W 7th Street, Suite 219109
Kansas City, MO 64105-1407
Minimum Investments*
To open a new regular Fund account
$2,500
To open a new regular Fund account with an automatic investment program of $50 per month
$100
To open a new UGMA/UTMA account, Coverdell Education Savings Account, or a retirement Fund account
 
• without an automatic investment program
$1,000
• with an automatic investment program of $50 per month
$100
To add to any existing type of Fund account without an automatic investment program
$50
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*
The Funds reserve the right to change the amount of these minimums from time to time or to waive them in whole or in part. Participants in certain retirement plans, including but not limited to, Janus Henderson prototype Money Purchase Pension and Profit Sharing plans, SEP IRAs, SARSEP IRAs, or outside qualified retirement plans, may not be subject to the stated minimums. Employees of JHG and its subsidiaries may open Fund accounts for $100.
Minimum Investment Requirements
Due to the proportionately higher costs of maintaining small accounts, the Funds reserve the right to deduct an annual $25 minimum balance fee per Fund account (paid to the Transfer Agent) with values below the minimums described under “Minimum Investments” or to close Fund accounts valued at less than $100. This policy may not apply to accounts that fall below the minimums solely as a result of market value fluctuations or to those accounts not subject to a minimum investment requirement. The fee or account closure will occur during the fourth quarter of each calendar year. You will receive written notice before we charge the $25 fee or close your account so that you may increase your account balance to the required minimum provided you meet certain residency eligibility requirements. Please note that you may incur a tax liability as a result of the fee being charged or the redemption.
Available Incentive Programs
Bonus Program for Taxable Account Purchases and Tax-Advantaged Account Transfers/Rollovers
Through the Transfer Agent’s Bonus Program, the Transfer Agent will pay a bonus of up to $2,500 to you for making certain eligible purchases of Fund shares in taxable accounts or transfers/rollovers from a non-Janus Henderson fund account into a Janus Henderson fund tax-advantaged account. The Bonus Program is valid with an eligible purchase or transfer/rollover of $20,000 or more. If you meet the eligibility requirements for the Bonus Program and enroll in it, the Transfer Agent will deposit a bonus payment into your Fund account within approximately 30 days after the deposit of eligible funds in good order and receipt of a signed contract governing the Bonus Program. An investor must keep the eligible purchase in the account for a period of 360 calendar days in order to retain the bonus payment. Any sale of the qualifying purchase amount (in whole or in part), transfer, or closure of the account within the 360 calendar day period may result in forfeiture of the bonus payment. Any decline in an account’s value due solely to market value fluctuations will not result in the forfeiture of the bonus payment. Only taxable account purchases or transfers/rollovers to tax-advantaged accounts that are made on or after January 1, 2023 through December 31, 2023 are eligible for a bonus payment. The eligible period for the Bonus Program may be extended beyond this time frame at the sole discretion of the Transfer Agent. Before enrolling in the Bonus Program, consult with your tax advisor about the appropriate tax treatment for the bonus offer and any tax implications associated with the receipt of a bonus payment. The Transfer Agent reserves the right to change the terms, restrict, or revoke this Bonus Program at any time without advance notice.
You can request more information about the Transfer Agent’s Bonus Program and eligibility requirements for taxable accounts by contacting a Janus Henderson representative at 1-800-525-3713 or by visiting www.janushenderson.com/bonus. You can request more information about the Bonus Program for tax-advantaged account transfers/rollovers by contacting a Janus Henderson Direct Rollover Specialist at 1-800-379-7603 or by visiting www.janushenderson.com/bonus.
Contribution Match Payments
Investors that transfer/rollover assets from a non-Janus Henderson fund account into a tax-advantaged account are also eligible for the Transfer Agent’s Contribution Match Program. To receive a Transfer Agent’s Contribution Match payment, (i) the value of your tax-advantaged account must remain equal to or greater than the value of the eligible transfer/rollover (but not including any losses due solely to market value fluctuations) for 12 months following the receipt of your transfer/rollover in good order and receipt of a signed contract governing the Contribution Match Program, and (ii) you must provide instructions to the Transfer Agent on how to invest these payments. The Transfer Agent’s Contribution Match payments will commence at the end of the first quarter in 2024 following an eligible contribution during the first quarter of 2024 into a Janus Henderson fund tax-advantaged account. The eligible period for the Transfer Agent’s Contribution Match payments may be extended beyond this time frame at the sole discretion of the Transfer Agent. The Transfer Agent will match a percentage of these contributions based on the aggregate value of eligible 2023 rollover or asset transfer amounts, and provide a matching contribution in an amount up to ten percent of your contribution. Before enrolling in the Contribution Match Program, consult with your tax advisor about the appropriate tax treatment for the Transfer Agent’s Contribution Match payments and any tax implications associated with the receipt of a Contribution Match payment. The Transfer Agent reserves the right to change the terms, restrict, or revoke the Contribution Match Program at any time without advance notice.
You can request more information about the Contribution Match Program and eligibility requirements by contacting a Janus Henderson Direct Rollover Specialist at 1-800-379-7603 or by visiting www.janushenderson.com/bonus.
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New Shareholder Incentive Program
New investors that are referred to Janus Henderson funds by an existing shareholder are eligible to participate in the Transfer Agent’s New Shareholder Incentive Program. After the new investor has completed the required Referral Program Contract, the Transfer Agent will fund the $100 initial investment required for new investors who have been referred through the New Shareholder Incentive Program, provided that new investors enroll in Janus Henderson’s automatic investment program in an amount equal to at least $50 per month. New investors will forfeit the $100 contributed by the Transfer Agent if their account is closed or if their automatic monthly investment program payment is terminated within two years from the date the initial investment was made. Investor-initiated amounts outside of the initial investment are redeemable at any time at net asset value. Before enrolling in the New Shareholder Incentive Program, new investors should consult with their tax advisor about the appropriate tax treatment for participating in the New Shareholder Incentive Program and any tax implications associated with the receipt of the $100 initial investment. The Transfer Agent reserves the right to change the terms, restrict, or revoke the New Shareholder Incentive Program at any time without advance notice.
You can request more information about the Transfer Agent’s New Shareholder Incentive Program by contacting a Janus Henderson representative at 1-800-525-3713 or by visiting www.janushenderson.com/bonus.
Types of Account Ownership
Please refer to janushenderson.com/individual for the appropriate account application and for information related to maintaining an account.
Individual or Joint Ownership
Individual accounts are owned by one person. Joint accounts have two or more owners.
Trust
An established trust can open an account. The names of each trustee, the name of the trust, and the date of the trust agreement must be included on the application.
Business Accounts
Corporations and partnerships may also open an account. The application must be signed by an authorized officer of the corporation or a general partner of the partnership.
Tax-Advantaged Accounts
Please refer to janushenderson.com/individual for the appropriate account application and for information related to maintaining an account. Certain tax-advantaged accounts can only be maintained via written request. Please contact a Janus Henderson representative for more information.
If you are eligible, you may set up one or more tax-advantaged accounts. A tax-advantaged account allows you to shelter your investment income and capital gains from current income taxes. A contribution to certain of these plans may also be tax deductible. The types of tax-advantaged accounts that may be opened with Janus Henderson are described below. Investors should consult their tax adviser or legal counsel before selecting a tax-advantaged account.
Investing for Your Retirement
Please visit janushenderson.com/individual or call a Janus Henderson representative for more complete information regarding the different types of IRAs available. Distributions from these plans may be subject to income tax and generally to an additional tax if withdrawn prior to age 59 12 and used for a nonqualifying purpose.
Traditional and Roth IRAs
Both IRAs allow most individuals with earned income to contribute up to the lesser of $6,000 or 100% of compensation, with future years increased by cost-of-living adjustments. In addition, IRA holders age 50 or older may contribute $1,000 more than these limits.
Simplified Employee Pension (“SEP”) IRA
This plan allows small business owners (including sole proprietors) to make tax-deductible contributions for themselves and any eligible employee(s). A SEP requires an IRA (a “SEP-IRA”) to be set up for each SEP participant.
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Profit Sharing or Money Purchase Pension Plans
These plans are open to corporations, partnerships, and small business owners (including sole proprietors) for the benefit of their employees and themselves. You may only maintain this type of account via written request. Please contact a Janus Henderson representative for more information.
Accounts for the Benefit of a Child
Custodial Accounts (UGMA or UTMA)
An UGMA/UTMA account is a custodial account managed for the benefit of a minor.
Coverdell Education Savings Account
This tax-advantaged plan allows individuals, subject to certain income limitations, to contribute up to $2,000 annually on behalf of any child under the age of 18. Contributions are also allowed on behalf of children with special needs beyond age 18. Distributions are generally tax-free when used for qualified education expenses.
Please refer to the following for information regarding opening an account and conducting business with Janus Henderson.
To Open an Account or Buy Shares
New accounts can be opened via written request or online. Please visit janushenderson.com/individual or contact a Janus Henderson representative for more information.
As previously noted, with certain exceptions, the Funds are generally available only to shareholders residing in the United States. Unless you meet certain residency eligibility requirements, you may not be able to open an account or buy additional shares.
By Mail/In Writing
To open your Fund account, complete and sign the appropriate application. Make your check payable to Janus Henderson or elect a one-time electronic withdrawal from your bank account as noted on the appropriate application.
To buy additional shares, complete the remittance slip accompanying your confirmation statement. If you are making a purchase into a retirement account, please indicate whether the purchase is a rollover or a current or prior year contribution. Send your check and remittance slip or written instructions to the address listed on the slip.
Online
You may open a new account or buy additional shares in an existing Fund account (note that certain account or transaction types may be restricted from being processed through janushenderson.com). You may elect to have Janus Henderson electronically withdraw funds from your designated bank account. A real-time confirmation of your transaction will be provided via janushenderson.com/individual.
By Telephone
For an existing account, you may use Janus Henderson XpressLine to buy shares 24 hours a day, or you may call a Janus Henderson representative during normal business hours. Janus Henderson will electronically withdraw funds from your designated bank account.
You may also buy shares by wiring money from your bank account to your Fund account. For wiring instructions, call a Janus Henderson representative.
By Automated Investments
To buy additional shares through the Automatic Investment Program, you select the frequency with which your money ($50 minimum) will be electronically transferred from your bank account to your Fund account. Certain tax-advantaged accounts are not eligible for automated investments.
You may buy additional shares using Payroll Deduction if your employer can initiate this type of transaction. You may have all or a portion of your paycheck ($50 minimum) invested directly into your Fund account.

Note:For more information, refer to “Paying for Shares.”
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To Exchange Shares
As previously noted, with certain exceptions, the Funds are generally available only to shareholders residing in the United States. Unless you meet certain residency eligibility requirements, the exchange privilege may not be available.
Online
Exchanges may generally be made online at janushenderson.com/individual.
By Telephone
Generally all accounts are automatically eligible to exchange shares by telephone. To exchange all or a portion of your shares into any other available Janus Henderson fund, call Janus Henderson XpressLine or a Janus Henderson representative.
By Mail/In Writing
To request an exchange in writing, please follow the instructions in “Written Instructions.”
By Systematic Exchange
You determine the amount of money you would like automatically exchanged from one Fund account to another on any day of the month.

Note:For more information, refer to “Exchanges.”
To Sell Shares
As previously noted, with certain exceptions, the Funds are generally available only to shareholders residing in the United States. Unless you meet certain residency eligibility requirements, once you close your account, you may not make additional investments in the Funds.
Online
Redemptions may be made online at janushenderson.com/individual.
By Telephone
Generally all accounts are automatically eligible to sell shares by telephone. To sell all or a portion of your shares, call Janus Henderson XpressLine or a Janus Henderson representative. The Funds reserve the right to limit the dollar amount that you may redeem from your account by telephone.
By Mail/In Writing
To request a redemption in writing, please follow the instructions in “Written Instructions.”
By Systematic Redemption
This program allows you to sell shares worth a specific dollar amount from your Fund account on a regular basis.

Note:For more information, refer to “Payment of Redemption Proceeds.”
The per share NAV for each class is computed by dividing the total value of assets allocated to the class, less liabilities allocated to that class, by the total number of outstanding shares of the class. A Fund’s NAV is calculated as of the close of the trading session of the New York Stock Exchange (“NYSE”) (normally 4:00 p.m. New York time) each day that the NYSE is open (“business day”). However, the time at which a Fund’s NAV is calculated may be changed if trading on the NYSE is restricted, the NYSE closes at a different time, or as permitted by the SEC. Foreign securities held by a Fund may be traded on days and at times when the NYSE is closed and the NAV is therefore not calculated. Accordingly, the value of a Fund’s holdings may change on days that are not business days in the United States and on which you will not be able to purchase or redeem a Fund’s Shares.
All purchases, exchanges, and redemptions will be duly processed at the NAV as described under “Policies in Relation to Transactions” after your request is received in good order by a Fund or its agents.
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Fund holdings are valued in accordance with policies and procedures established by the Adviser pursuant to Rule 2a-5 under the Investment Company Act of 1940, as amended, and approved by and subject to the oversight of the Trustees (the “Valuation Procedures”). To the extent available, domestic and foreign equity securities traded on a securities exchange are generally valued at readily available market quotations, which are (i) the official close prices or (ii) last sale prices on the primary market or exchange in which the securities trade. Most fixed-income securities are typically valued using an evaluated bid price supplied by an Adviser-approved pricing service that is intended to reflect market value. The evaluated bid price is an evaluation that may consider factors such as security prices, yields, maturities, and ratings. Certain short-term instruments maturing within 60 days or less may be valued at amortized cost, which approximates market value. If a market quotation or evaluated price for a security is not readily available or is deemed unreliable, or if an event that is expected to affect the value of the security occurs after the close of the principal exchange or market on which the security is traded, and before the close of the NYSE, a fair value of the security will be determined in good faith by the Adviser pursuant to the Valuation Procedures. Such events include, but are not limited to: (i) a significant event that may affect the securities of a single issuer, such as a merger, bankruptcy, or significant issuer-specific development; (ii) an event that may affect an entire market, such as a natural disaster or significant governmental action; (iii) a non-significant event such as a market closing early or not opening, or a security trading halt; and (iv) pricing of a non-valued security and a restricted or non-public security. This type of fair valuation may be more commonly used with foreign equity securities, but it may also be used with, among other things, thinly-traded domestic securities or fixed-income securities. Special valuation considerations may apply with respect to “odd-lot” fixed-income transactions which, due to their small size, may receive evaluated prices by pricing services which reflect a large block trade and not what actually could be obtained for the odd-lot position. For valuation purposes, quotations of foreign portfolio securities, other assets and liabilities, and forward contracts stated in foreign currency are generally translated into U.S. dollar equivalents at the prevailing market rates. The Valuation Procedures provide for the use of systematic fair valuation models provided by an independent pricing service to value foreign equity securities in order to adjust for stale pricing, which may occur between the close of certain foreign exchanges and the close of the NYSE. The methodologies employed when fair valuing Fund holdings may change from time to time. Because fair value pricing involves subjective judgments, it is possible that the fair value determination for a security may be different than the value that could be realized when selling that security.
Due to the subjective nature of systematic fair valuation, the value of a particular security may be different from the last quoted market price. Systematic fair valuation may reduce arbitrage activity involving the frequent buying and selling of mutual fund shares by investors seeking to take advantage of a perceived lag between a change in the value of a Fund’s portfolio securities and the reflection of such change in a Fund’s NAV, as further described in the “Excessive Trading” section of this Prospectus. While funds that invest in foreign securities may be at a greater risk for arbitrage activity, such activity may also arise in funds which do not invest in foreign securities, for example, when trading in a security held by a fund is halted and does not resume prior to the time the fund calculates its NAV (referred to as “stale pricing”). Funds that hold thinly-traded securities, such as certain small-capitalization securities or high-yield fixed-income securities, may be subject to attempted use of arbitrage techniques. To the extent that the valuation of a security is different from the security’s market value, short-term arbitrage traders buying and/or selling shares of a Fund may dilute the NAV of the Fund, which negatively impacts long-term shareholders. The Valuation Procedures and the Trust’s excessive trading policies and procedures may not completely eliminate short-term trading in certain omnibus accounts and other accounts traded through intermediaries.
The value of the securities of other mutual funds held by a Fund, if any, will be calculated using the NAV of such mutual funds, and the prospectuses for such mutual funds explain the circumstances under which they use fair valuation and the effects of using fair valuation.
Generally, futures contracts and/or options on futures are valued at the actual settlement price on valuation date on the exchange as reported by an approved vendor. In the event actual settlement price is unavailable or is deemed unreliable, then the reported settlement price (there can be different settlement prices at different times), early settlement price or the last trade price shall be used. Option contracts are valued using an evaluated price from an approved vendor. Evaluated prices can be derived using an option pricing model, including inputs derived from volatility surfaces, market data and characteristics of the portfolio investment. In cases when an approved vendor cannot provide coverage for an option, a broker quotation or an internal valuation using the Black-Scholes model, or other appropriate option pricing model shall be used. Index swaps, credit default swaps, and interest rate swaps are typically valued using an evaluated price from an approved vendor. Evaluated prices will generally have a fixed and floating leg with the present value of each being calculated based on the terms of the trade.
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Policies in Relation to Transactions
All requests, including but not limited to, exchanges between a Fund and other Janus Henderson funds, purchases by check or automated investment, redemptions by wire transfer, ACH transfer, or check, must be received in good order by the Fund or its agents prior to the close of the trading session of the NYSE (normally 4:00 p.m. New York time) in order to receive that day’s NAV. Transaction requests submitted in writing and mailed to Janus Henderson’s P.O. Box, once delivered, are considered received for processing the following business day. Transactions involving funds which pay dividends will generally begin to earn dividends, as applicable, on the first bank business day following the date of purchase.
The Funds pay an annual administrative services fee based on the average daily net assets of Class D Shares, as detailed below.
Average Daily Net Assets of Class D Shares of the Janus Henderson funds
Administrative Services Fee
Under $40 billion
0.12%
$40 billion - $49.9 billion
0.10%
Over $49.9 billion
0.08%
These administrative services fees are paid by Class D Shares of each Fund. The Transfer Agent provides or arranges for the provision of shareholder services including, but not limited to, recordkeeping, accounting, answering inquiries regarding accounts, transaction processing, transaction confirmations, and the mailing of prospectuses and shareholder reports.
With respect to other share classes not offered in this Prospectus, the Adviser or its affiliates pay fees, from their own assets, to certain brokerage firms, banks, financial advisors, retirement plan service providers, and other financial intermediaries that sell the Janus Henderson funds for distribution, marketing, promotional, or related services, and/or for providing recordkeeping, subaccounting, transaction processing, other shareholder or administrative services (including payments for processing transactions via the National Securities Clearing Corporation (“NSCC”) or other means), and the Committee on Uniform Security Identification Procedures (“CUSIP”) and fund setup fees, in connection with investments in the Janus Henderson funds. These fees are in addition to any fees that may be paid by the Janus Henderson funds for certain of these types of services or other services. Shareholders investing through an intermediary should consider whether such arrangements exist when evaluating any recommendations from an intermediary and when considering which share class of a fund is most appropriate.
In addition, the Adviser or its affiliates periodically share certain marketing expenses with selected intermediaries, or pay for or sponsor informational meetings, seminars, client awareness events, support for marketing materials, sales reporting, or business building programs for such financial intermediaries to raise awareness of the Funds. The Adviser or its affiliates make payments to participate in selected intermediary marketing support programs which may provide the Adviser or its affiliates with one or more of the following benefits: attendance at sales conferences, participation in meetings or training sessions, access to or information about intermediary personnel, use of an intermediary’s marketing and communication infrastructure, fund analysis tools, data, business planning and strategy sessions with intermediary personnel, information on industry- or platform-specific developments, trends and service providers, and other marketing-related services. Such payments may be in addition to, or in lieu of, the payments described above. These payments are intended to promote the sales of Janus Henderson funds and to reimburse financial intermediaries, directly or indirectly, for the costs that they or their salespersons incur in connection with educational seminars, meetings, and training efforts about the Janus Henderson funds to enable the intermediaries and their salespersons to make suitable recommendations, provide useful services, and maintain the necessary infrastructure to make the Janus Henderson funds available to their customers.
The receipt of (or prospect of receiving) payments described above may provide a financial intermediary and its salespersons with an incentive to favor sales of Janus Henderson funds’ shares over sales of other mutual funds (or non-mutual fund investments) or to favor sales of one class of Janus Henderson funds’ shares over sales of another Janus Henderson funds’ share class, with respect to which the financial intermediary does not receive such payments or receives them in a lower amount. The receipt of these payments may cause certain financial intermediaries to elevate the prominence of the Janus Henderson funds within such financial intermediary’s organization by, for example, placement on a list of preferred or
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recommended funds and/or the provision of preferential or enhanced opportunities to promote the Janus Henderson funds in various ways within such financial intermediary’s organization.
From time to time, certain financial intermediaries approach the Adviser to request that the Adviser make contributions to certain charitable organizations. In these cases, the Adviser’s contribution may result in the financial intermediary, or its salespersons, recommending Janus Henderson funds over other mutual funds (or non-mutual fund investments).
The payment arrangements described above will not change the price an investor pays for Shares nor the amount that a Janus Henderson fund receives to invest on behalf of the investor. You should consider whether such arrangements exist when evaluating any recommendations from an intermediary to purchase or sell Shares of the Funds and, if applicable, when considering which share class of a Fund is most appropriate for you.
As previously noted, with certain exceptions, the Funds are generally available only to shareholders residing in the United States. Unless you meet certain residency eligibility requirements, you may not be able to buy shares.
Please note the following when purchasing Shares:
Cash, credit cards, third party checks (with certain limited exceptions), travelers cheques, credit card checks, line of credit checks, or money orders will not be accepted.
All purchases must be made in U.S. dollars and checks must be drawn on U.S. banks or an accepted non-U.S. bank.
Purchases initiated using a bill-pay service (or an equivalent) and presented either electronically or in the form of a check are considered direct deposit transactions.
When purchasing Shares through the Automatic Investment Program, your automatic investment selection(s) will generally be active within three days following receipt of your authorization for the date and amount you specify. If no date or dollar amount is specified on your application, investments of $50 will be made on the 20th of each month. If the balance in the Janus Henderson fund account you are buying into falls to zero as the result of a redemption, exchange, or minimum balance fee, your Automatic Investment Program will be discontinued.
We may make additional attempts to debit your predesignated bank account for automated investments that initially fail. You are liable for any costs associated with these additional attempts. If your automated investment fails, you may purchase Shares of the Funds by submitting good funds via another method accepted by the Funds (e.g., by wire transfer). In this case, your purchase will be processed at the next NAV determined after we receive good funds, not at the NAV available as of the date of the original request.
Each Fund reserves the right to reject any purchase order, including exchange purchases, for any reason. The Funds are not intended for excessive trading. For more information about the Funds’ policy on excessive trading, refer to “Excessive Trading.”
If all or a portion of a purchase is received for investment without a specific fund designation, for investment in one of our closed funds, or for investment in a fund that is not yet available for public sale, the undesignated amount or entire investment, as applicable, will be invested in Janus Henderson Government Money Market Fund. For investments without a specific fund designation, where you own a single Fund account with a current balance greater than zero, the investment will be applied to that Fund account. For investments without a specific fund designation, where you own two or more Fund accounts with current balances greater than zero, and for investments in closed funds, unless you later direct Janus Henderson to (i) buy shares of another Janus Henderson fund or (ii) sell shares of Janus Henderson Government Money Market Fund and return the proceeds (including any dividends earned) to you, Janus Henderson will treat your inaction as approval of the purchase of Janus Henderson Government Money Market Fund. If you hold shares of a closed fund and submit an order directly to Janus Henderson for your account in that closed fund, your account must be open and your order must clearly indicate that you are currently a shareholder of the closed fund, or your money will be invested in Janus Henderson Government Money Market Fund. If you submit an order to buy shares of a fund that is not yet available for investment (during a subscription period), your investment will be held in Janus Henderson Government Money Market Fund until the new fund’s commencement of operations. At that time, your investment (including any dividends) will be automatically exchanged from Janus Henderson Government Money Market Fund to the new fund. All orders for purchase, exchange, or redemption will receive the NAV as described under “Policies in Relation to Transactions.”
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For Fund purchases by check, if your check does not clear for any reason, your purchase will be cancelled.
If your purchase is cancelled for any reason, you will be responsible for any losses or fees imposed by your bank and any losses incurred by a Fund as a result. A Fund may redeem shares held in your account to cover any losses it incurs if your purchase is cancelled.
In compliance with the Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act of 2001 (“USA PATRIOT Act”), the Adviser is required to verify certain information on your account application as part of its Anti-Money Laundering Program. You will be required to provide your full name, date of birth, Social Security number, and permanent street address to assist in verifying your identity. You may also be asked to provide documents that may help to establish your identity. For investors other than individuals: When you open an account, you will be asked for the name of the entity, its principal place of business, and taxpayer identification number, and you may be requested to provide information on persons with authority or control over the account, or persons who own (whether directly, indirectly, or beneficially) 25% or more of the entity, such as name, permanent street address, date of birth, and Social Security number. Until verification of an identity is made, the Adviser may temporarily limit additional share purchases. In addition, the Adviser may close an account if it is unable to verify a shareholder’s identity. Please contact a Janus Henderson representative if you need additional assistance when completing your application or additional information about the Anti-Money Laundering Program.
In an effort to ensure compliance with this law, the Adviser’s Anti-Money Laundering Program (the “Program”) provides for the development of internal practices, procedures and controls, designation of anti-money laundering compliance officers, an ongoing training program, and an independent audit function to determine the effectiveness of the Program.
The Funds have also adopted an identity theft policy (“Red Flag Policy”) to detect, prevent, and mitigate patterns, practices, or specific activities that indicate the possible existence of identity theft. The Funds are required by law to obtain certain personal information which will be used to verify your identity. The Red Flag Policy applies to the opening of Fund accounts and activity with respect to existing accounts.
As previously noted, with certain exceptions, the Funds are generally available only to shareholders residing in the United States. Unless you meet certain residency eligibility requirements, the exchange privilege may not be available.
Please note the following when exchanging Shares:
An exchange represents the redemption (or sale) of shares from one Fund and the purchase of shares of another Fund, which may produce a taxable gain or loss in a non-retirement account.
You may generally exchange Shares of a Fund for Shares of the same class of any other fund in the Trust, with the exception of the Janus Henderson money market funds. Only accounts beneficially owned by natural persons will be allowed to exchange to Janus Henderson Money Market Fund; all other account types can only exchange to Janus Henderson Government Money Market Fund.
You may also exchange shares of one class for another class of shares within the same fund, provided the eligibility requirements of the class of shares to be received are met. A Fund’s fees and expenses differ between share classes. Exchanging from a direct share class to one held through an intermediary typically results in increased expenses. This is because share classes distributed through intermediaries include additional fees for administration and/or distribution to pay for services provided by intermediaries. Please read the Prospectus for the share class you are interested in prior to investing in that share class.
New regular Janus Henderson fund accounts established by exchange must be opened with $2,500 or the total account value if the value of the Janus Henderson fund account you are exchanging from is less than $2,500 ($100 for new regular Fund accounts with an automatic investment program of $50 per month). (If your Janus Henderson fund account balance does not meet the minimum investment requirements, you may be subject to an annual minimum balance fee or account closure. For more information, refer to “Minimum Investment Requirements.”)
UGMA/UTMA accounts, Traditional or Roth IRAs, Simplified Employee Pension IRAs, and Coverdell Education Savings Accounts established by exchange must meet the minimum investment requirements previously described. If the value of the Janus Henderson fund account you are exchanging from is less than the stated minimum, you must exchange the entire
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balance. (If your Janus Henderson fund account balance does not meet the minimum investment requirements, you may be subject to an annual minimum balance fee or account closure. For more information, refer to “Minimum Investment Requirements.”)
New Janus Henderson fund non-retirement accounts established by an exchange (or exchange purchases to an existing Roth IRA) resulting from a required minimum distribution from a retirement account do not have an initial minimum investment requirement. (If your Janus Henderson fund account balance does not meet the minimum investment requirements, you may be subject to an annual minimum balance fee or account closure. For more information, refer to “Minimum Investment Requirements.”)
Exchanges between existing Janus Henderson fund accounts must meet the $50 subsequent investment requirement.
For Systematic Exchanges, if no date is specified on your request, systematic exchanges will be made on the 20th of each month. You may establish this option for as little as $100 per exchange. If the balance in the Janus Henderson fund account you are exchanging from falls below the Systematic Exchange amount, all remaining shares will be exchanged and your Systematic Exchange Program will be discontinued.
The exchange privilege is not intended as a vehicle for short-term or excessive trading. A Fund may suspend or terminate the exchange privilege of any investor who is identified as having a pattern of short-term trading. Different restrictions may apply if you invest through an intermediary.
Each Fund reserves the right to reject any exchange request and to modify or terminate the exchange privilege at any time.
With certain exceptions, exchanges between Janus Henderson fund accounts will be accepted only if the registrations are identical. If you are exchanging into a closed Janus Henderson fund, you will need to meet criteria for investing in the closed fund. For more information, refer to Closed Fund Policies in the “Other Information” section of this Prospectus.
If the shares you are exchanging are held in certificate form, you must return the certificate to Janus Henderson prior to making any exchanges. Shares are no longer available in certificate form.
Note: For the fastest and easiest way to exchange shares, log on to janushenderson.com/individual* 24 hours a day, 7 days a week.
*
Certain account types and transactions are not available via janushenderson.com. For more information, access janushenderson.com/individual or refer to this Shareholder’s Manual.
As previously noted, with certain exceptions, the Funds are generally available only to shareholders residing in the United States. Unless you meet certain residency eligibility requirements, once you close your account, you may not make additional investments in the Funds.
By Electronic Transfer – Generally all accounts are automatically eligible for the electronic redemption option if bank information is provided.
Next Day Wire Transfer – Your redemption proceeds can be electronically transferred to your predesignated bank account on the next bank business day after receipt of your redemption request (wire transfer). You may be charged a fee for each wire transfer, and your bank may charge an additional fee to receive the wire.
ACH (Automated Clearing House) Transfer – Your redemption proceeds can be electronically transferred to your predesignated bank account on or about the next bank business day after receipt of your redemption request. There is no fee associated with this type of electronic transfer.
By Check – Redemption proceeds will be sent to the shareholder(s) of record at the address of record normally within seven days after receipt of a valid redemption request. During the 10 days following an address change, requests for redemption checks to be sent to a new address require a signature guarantee.
By Systematic Redemption – If no date is specified on your request, systematic redemptions will be made on or about the 24th of each month. If the balance in the Janus Henderson fund account you are selling from falls to zero, your Systematic Redemption Program will be discontinued.
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The Funds typically expect to meet redemption requests by paying out proceeds from cash or cash equivalent portfolio holdings, or by selling portfolio holdings. In stressed market conditions, and other appropriate circumstances, redemption methods may include borrowing funds or redeeming in-kind.
Generally, orders to sell Shares may be initiated at any time at janushenderson.com/individual, by telephone, or in writing. Certain accounts may require a written request. If the Shares being sold were purchased by check or automated investment, the Funds can delay the payment of your redemption proceeds for up to 15 days from the day of purchase to allow the purchase to clear. In addition, there may be a delay in the payment of your redemption proceeds if you request a redemption by electronic transfer and your bank information is new. Unless you provide alternate instructions, your proceeds will be invested in Shares of Janus Henderson Government Money Market Fund during the 15-day hold period.
Each Fund reserves the right to postpone payment of redemption proceeds for up to seven calendar days. Additionally, the right to require the Funds to redeem their Shares may be suspended, or the date of payment may be postponed beyond seven calendar days, whenever: (i) trading on the NYSE is restricted, as determined by the SEC, or the NYSE is closed (except for holidays and weekends); (ii) the SEC permits such suspension and so orders; or (iii) an emergency exists as determined by the SEC so that disposal of securities or determination of NAV is not reasonably practicable. A temporary hold may also be placed on the disbursement of redemption proceeds from an account if there is a reasonable belief that financial exploitation of a Specified Adult has occurred, is occurring, has been attempted, or will be attempted, as described under “Temporary Suspension of Services.”
Note: For the fastest and easiest way to redeem shares, log on to janushenderson.com/individual* 24 hours a day, 7 days a week.
*
Certain account types and transactions are not available via janushenderson.com. For more information, access janushenderson.com/individual or refer to this Shareholder’s Manual.
Large Shareholder Redemptions
Certain large shareholders, such as other funds, individuals, accounts, and the affiliates of the Adviser, may from time to time own (beneficially or of record) or control a significant percentage of a Fund’s Shares. Redemptions by these large shareholders of their holdings in a Fund may cause the Fund to sell portfolio securities at times when it would not otherwise do so, which may negatively impact the Fund’s NAV and liquidity. Similarly, large Fund share purchases may adversely affect a Fund’s performance to the extent that the Fund is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. These transactions may also accelerate the realization of taxable income to shareholders if such sales of investments result in gains, and may also increase transaction costs. In addition, a large redemption could result in a Fund’s current expenses being allocated over a smaller asset base, which could lead to an increase in the Fund’s expense ratio.
Redemptions In-Kind
Shares normally will be redeemed for cash, although each Fund retains the right to redeem some or all of its shares in-kind under unusual circumstances, in order to protect the interests of remaining shareholders, to accommodate a request by a particular shareholder that does not adversely affect the interests of the remaining shareholders, or in connection with the liquidation of a fund, by delivery of securities selected from its assets at its discretion. However, each Fund is required to redeem shares solely for cash up to the lesser of $250,000 or 1% of the NAV of that Fund during any 90-day period for any one shareholder. Should redemptions by any shareholder exceed such limitation, a Fund will have the option of redeeming the excess in cash or in-kind. In-kind payment means payment will be made in portfolio securities rather than cash, and may potentially include illiquid investments. Illiquid investments may not be able to be sold quickly or at a price that reflects full value, or there may not be a market for such investments, which could cause the redeeming shareholder to realize losses on the investment if it is sold at a price lower than that at which it had been valued. If a Fund makes an in-kind payment, the redeeming shareholder might incur brokerage or other transaction costs to convert the securities to cash, whereas such costs are borne by the Fund for cash redemptions. Redemptions in-kind are taxable for federal income tax purposes in the same manner as redemptions for cash and subsequent sale of securities received in-kind may result in taxable gains for federal income tax purposes.
While a Fund may pay redemptions in-kind, a Fund may instead choose to raise cash to meet redemption requests through the sale of fund securities or permissible borrowings. If a Fund is forced to sell securities at an unfavorable time and/or under
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unfavorable conditions, such sales may adversely affect the Fund’s NAV and may increase brokerage costs and accelerate the recognition of taxable income.
Written Instructions
To redeem or exchange all or part of your Shares in writing, your request should be sent to one of the addresses listed under “Doing Business with Janus Henderson.” Requests or documents received in a language other than English may be inadvertently delayed or returned due to an inability to accurately translate the intended instructions. Please include the following information:
the name of the Janus Henderson fund(s) being redeemed or exchanged;
the account number(s);
the amount of money or number of shares being redeemed or exchanged;
the name(s) on the account;
the signature(s) of one or more registered account owners; and
your daytime telephone number.
Signature Guarantee
A signature guarantee for each registered account owner is required if any of the following is applicable:
You request a redemption by check above a certain dollar amount.
You would like a check made payable to anyone other than the shareholder(s) of record.
You would like a check mailed to an address that has been changed within 10 days of the redemption request.
You would like a check mailed to an address other than the address of record.
You would like your redemption proceeds sent to a bank account other than a bank account of record.
The Funds reserve the right to require a signature guarantee under other circumstances or to reject or delay a redemption on certain legal grounds.
A signature guarantee may be refused if any of the following is applicable:
It does not appear valid or in good form.
The transaction amount exceeds the surety bond limit of the signature guarantee.
The guarantee stamp has been reported as stolen, missing, or counterfeit.
How to Obtain a Signature Guarantee
A signature guarantee assures that a signature is genuine. The signature guarantee protects shareholders from unauthorized account transfers. The following financial institutions may guarantee signatures: banks, savings and loan associations, trust companies, credit unions, broker-dealers, and member firms of a national securities exchange. Call your financial institution to see if it has the ability to guarantee a signature. A signature guarantee cannot be provided by a notary public.
Excessive and Short-Term Trading Policies and Procedures
The Trustees have adopted policies and procedures with respect to short-term and excessive trading of Fund shares (“excessive trading”). The Funds are intended for long-term investment purposes, and the Funds will take reasonable steps to attempt to detect and deter short-term and excessive trading. Transactions placed in violation of the Funds’ exchange limits or excessive trading policies and procedures may be cancelled or rescinded by a Fund by the next business day following receipt by the Fund. The trading history of accounts determined to be under common ownership or control within any of the Janus Henderson funds may be considered in enforcing these policies and procedures. Direct investors should be aware that the Funds are also available for purchase through third party intermediaries. As described below, the Funds may not be able to identify all instances of excessive trading or completely eliminate the possibility of excessive trading. In particular, it may be difficult to identify excessive trading in certain omnibus accounts and other accounts traded through intermediaries. By their nature, omnibus accounts, in which purchases and redemptions of the Funds’ shares by multiple investors are aggregated by the intermediary and presented to the Funds on a net basis, may effectively conceal the identity of individual investors and
83 | Janus Investment Fund

their transactions from the Funds and their agents. This makes the elimination of excessive trading in the accounts impractical without the assistance of the intermediary.
The Janus Henderson funds attempt to deter excessive trading through at least the following methods:
exchange limitations as described under “Exchanges”;
fair valuation of securities as described under “Pricing of Fund Shares”; and
trade monitoring and transaction restrictions as described below.
The Funds monitor for patterns of shareholder short-term trading and may suspend or permanently terminate the purchase and exchange privilege of any investor who is identified as having a pattern of short-term trading. The Funds at all times reserve the right to reject any purchase or exchange request and to modify or terminate the purchase and exchange privileges for any investor for any reason without prior notice, in particular, if the trading activity in the account(s) is deemed to be disruptive to a Fund.
The Funds’ Trustees may approve from time to time a redemption fee to be imposed by any Janus Henderson fund, subject to 60 days’ notice to shareholders of that fund.
Investors in other share classes who place transactions through the same financial intermediary on an omnibus basis may be deemed part of a group for the purpose of the Funds’ excessive trading policies and procedures and may be rejected in whole or in part by a Fund. Transactions accepted by a financial intermediary in violation of the Funds’ excessive trading policies may be cancelled or revoked by a Fund by the next business day following receipt by that Fund.
In an attempt to deter excessive trading in omnibus accounts, the Funds or their agents may require intermediaries to impose restrictions on the trading activity of accounts traded through those intermediaries. Such restrictions may include, but are not limited to, requiring that trades be placed by U.S. mail, prohibiting future purchases by investors who have recently redeemed Fund shares, requiring intermediaries to report information about customers who purchase and redeem large amounts, and similar restrictions. The Funds’ ability to impose such restrictions with respect to accounts traded through particular intermediaries may vary depending on the systems’ capabilities, applicable contractual and legal restrictions, and cooperation of those intermediaries.
Generally, the Funds’ excessive trading policies and procedures do not apply to (i) a money market fund, although money market funds at all times reserve the right to reject any purchase request (including exchange purchases) for any reason without prior notice; (ii) transactions in the Janus Henderson funds by a Janus Henderson “fund of funds,” which is a fund that primarily invests in other Janus Henderson funds; (iii) periodic rebalancing and identifiable transactions by certain funds of funds and asset allocation programs to realign portfolio investments with existing target allocations; and (iv) systematic purchase, exchange, or redemption programs.
The Funds’ policies and procedures regarding excessive trading may be modified at any time by the Funds’ Trustees.
Excessive Trading Risks
Excessive trading may present risks to a Fund’s long-term shareholders. Excessive trading into and out of a Fund may disrupt portfolio investment strategies, may create taxable gains to remaining Fund shareholders, and may increase Fund expenses, all of which may negatively impact investment returns for all remaining shareholders, including long-term shareholders.
Funds that invest in foreign securities may be at a greater risk for excessive trading. Investors may attempt to take advantage of anticipated price movements in securities held by a fund based on events occurring after the close of a foreign market that may not be reflected in the fund’s NAV (referred to as “price arbitrage”). Such arbitrage opportunities may also arise in funds which do not invest in foreign securities, for example, when trading in a security held by a fund is halted and does not resume prior to the time the fund calculates its NAV (referred to as “stale pricing”). Funds that hold thinly-traded securities, such as certain small-capitalization securities, may be subject to attempted use of arbitrage techniques. To the extent that a Fund’s valuation of a security differs from the security’s market value, short-term arbitrage traders may dilute the NAV of a Fund, which negatively impacts long-term shareholders. There is potential for short-term arbitrage trades to dilute the value of shares held by a Fund despite the Funds’ adoption of policies and procedures intended to reduce the Fund’s exposure to price arbitrage, stale pricing, and other potential pricing inefficiencies.
There is no assurance that the policies and procedures adopted by the Funds to detect and deter excessive trading will be effective in all circumstances. For example, for share classes sold through financial intermediaries, the Funds may be unable to completely eliminate the possibility of excessive trading in certain omnibus accounts and other accounts traded through
84 | Janus Investment Fund

intermediaries. Omnibus accounts may effectively conceal the identity of individual investors and their transactions from the Funds and their agents. This makes the Funds’ identification of excessive trading transactions in the Funds through an omnibus account difficult and makes the elimination of excessive trading in the account impractical without the assistance of the intermediary. Although the Funds encourage intermediaries to take necessary actions to detect and deter excessive trading, some intermediaries may be unable or unwilling to do so, and accordingly, the Funds cannot eliminate completely the possibility of excessive trading.
Shareholders that invest through an omnibus account should be aware that they may be subject to the policies and procedures of their financial intermediary with respect to excessive trading in the Funds.
Availability of Portfolio Holdings Information
The Mutual Fund Holdings Disclosure Policies and Procedures adopted by the Adviser and all mutual funds managed within the Janus Henderson fund complex are designed to be in the best interests of the funds and to protect the confidentiality of the funds’ portfolio holdings. The following describes policies and procedures with respect to disclosure of portfolio holdings.
Full Holdings.A schedule of each Fund’s portfolio holdings, consisting of at least the names of the holdings, is generally available on a monthly basis with a 30-day lag and is posted under Full Holdings for each Fund at janushenderson.com/reports. A complete schedule of each Fund’s portfolio holdings is also available semiannually and annually in shareholder reports and, after the first and third fiscal quarters, in Form N-PORT. Information reported in shareholder reports and in Form N-PORT will be made publicly available within 60 days after the end of the respective fiscal quarter. Each Fund’s shareholder reports and Form N-PORT filings are available on the SEC’s website at http://www.sec.gov. In addition, each Fund’s shareholder reports are available without charge, upon request, by calling a Janus Henderson representative at 1-800-525-3713 (toll free).
Top Holdings.Each Fund’s top portfolio holdings, in order of position size and as a percentage of a Fund’s total portfolio, are available monthly with a 15-day lag.
Other Information.Each Fund may occasionally provide security breakdowns (e.g., industry, sector, regional, market capitalization, and asset allocation) and specific portfolio level performance attribution information and statistics monthly with a 15-day lag. Top/bottom equity securities and/or fixed-income issuers ranked by performance attribution, including the percentage attribution to Fund performance, average Fund weighting, and other relevant data points, may be provided monthly with a 15-day lag.
The Adviser may exclude from publication on its websites all or any portion of portfolio holdings or change the time periods of disclosure as deemed necessary to protect the interests of the Janus Henderson funds. Under extraordinary circumstances, exceptions to the Mutual Fund Holdings Disclosure Policies and Procedures may be made by the head of the applicable investment unit or a delegate, in consultation with the Funds’ Chief Compliance Officer or a delegate. Such exceptions may be made without prior notice to shareholders. A summary of the Funds’ portfolio holdings disclosure policies and procedures, which includes a discussion of any exceptions, is contained in the Funds’ SAI.
Address Changes
For the easiest way to change the address on your account, visit janushenderson.com/individual. You may also call a Janus Henderson representative or send a written request signed by one or more shareholder(s) of record. Include the name of the Janus Henderson fund(s) you hold, the account number(s), the name(s) on the account, and both the old and new addresses. Certain options may be suspended for 10 days following an address change unless a signature guarantee is provided.
Bank Account Changes
For the easiest way to change your bank account of record or add new bank account information to your account, visit janushenderson.com/individual. You may also send a written request signed by the shareholder of record or by each shareholder of record if more than one. Certain accounts may require a written notice and, in some instances, bank privileges may not be available. If multiple account owners are named on the added bank account, at least one name on the bank account must match one name on the Fund account. There may be a delay in the payment of your redemption proceeds if you request a redemption by electronic transfer to a new bank or bank account.
85 | Janus Investment Fund

You may revoke the authorization to use your bank account information at any time by visiting janushenderson.com/individual, or by sending a written request by mail (Janus Henderson, P.O. Box 219109, Kansas City, MO 64121-9109), or by telephone at 1-800-525-3713. Your request will be processed within a reasonable amount of time upon its receipt.
Distributions
Generally, all income dividends and capital gains distributions will automatically be reinvested in your Fund account. If you wish to change your distribution option, please visit janushenderson.com/individual, call a Janus Henderson representative, or send a written request signed by one or more shareholder(s) of record.
Your non-retirement Fund account distribution checks may be reinvested in your Fund account if you do not cash them within one year of the date they were written. No interest will accrue on amounts represented by uncashed distribution or redemption checks.
Involuntary Redemptions
The Funds reserve the right to close an account if the shareholder is deemed to engage in activities which are illegal or otherwise believed to be detrimental to the Funds. This includes, but is not limited to, accounts that a Fund or its agents believe are engaged in market timing. Any time shares are redeemed in a taxable account, it is considered a taxable event. You are responsible for any tax liabilities associated with an involuntary redemption of your account.
Lost (Unclaimed/Abandoned) Accounts
It is important that the Funds maintain a correct address for each shareholder. An incorrect address may cause a shareholder’s account statements and other mailings to be returned to the Funds as undeliverable. Based upon statutory requirements for returned mail, the Adviser will attempt to locate the shareholder or rightful owner of the account. If the Adviser is unable to locate the shareholder, then the Adviser is legally obligated to deem the property “unclaimed” or “abandoned,” and subsequently escheat (or transfer) unclaimed property (including shares of a mutual fund) to the appropriate state’s unclaimed property administrator in accordance with statutory requirements. Further, your mutual fund account may be deemed “unclaimed” or “abandoned,” and subsequently transferred to your state of residence if no activity (as defined by that state) occurs within your account during the time frame specified in your state’s unclaimed property laws. The shareholder’s last known address of record determines which state has jurisdiction. Interest or income is not earned on redemption or distribution check(s) sent to you during the time the check(s) remained uncashed.
Online and Telephone Transactions
You may initiate many transactions through janushenderson.com/individual or by calling Janus Henderson XpressLine. You may also contact a Janus Henderson representative. Generally all new accounts automatically receive online and telephone transaction privileges including redemption privileges. If you do not want to receive these privileges, please call a Janus Henderson representative. The Funds and their agents will not be responsible for any losses, costs, or expenses resulting from unauthorized transactions when reasonable procedures designed to verify the identity of the online user or caller are followed.
Your ability to access your account or transact business electronically may be impacted due to unexpected circumstances, such as system outages, or during periods of increased web activity. For example, periods of substantial market change or other unexpected events can contribute to high call volumes, which may delay your ability to reach a Janus Henderson representative by telephone.
If you experience difficulty transacting business with us through a particular method, please consider using an alternate method, such as visiting janushenderson.com/individual, calling Janus Henderson XpressLine, contacting a Janus Henderson representative by telephone, or sending written instructions to complete your transaction. Please remember that purchase, exchange, or redemption requests must be received in good order by a Fund or its agents prior to the close of the trading session of the NYSE in order to receive that day’s NAV.
Your account information, including online credentials, should be kept private, and you should immediately review any account statements that you receive from Janus Henderson. Someone other than you could act on your account if that person is able to provide the required identifying information. Contact Janus Henderson immediately about any transactions you believe to be unauthorized.
86 | Janus Investment Fund

Registration Changes
To change the name on an account, the shares are generally transferred to a new account. In some cases, legal documentation may be required. Please visit janushenderson.com/individual or call a Janus Henderson representative for further instructions.
Statements, Reports, and Prospectuses
We will send you a confirmation upon the completion of individual account transactions. We will also send you quarterly account statements detailing financial transactions on open accounts processed year-to-date. Systematic transactions are confirmed on quarterly statements unless otherwise requested. Confirmations and quarterly account statements will be sent to the account address of record unless you have elected to receive online statements. The Funds reserve the right to charge a fee for additional account statement requests.
At account setup, or any time thereafter, you may elect (at janushenderson.com/edelivery) to discontinue physical delivery of quarterly account statements and/or confirmations, and instead receive an e-mail notification when they are available online. All statements are available online regardless of your delivery option elections (to view, you must first establish online access at janushenderson.com/individual).
The Funds produce shareholder reports that include a complete list of each of the Funds’ portfolio holdings semiannually, and update their prospectus annually. Beginning on January 1, 2021, as permitted by regulations adopted by the SEC, paper copies of the Funds’ shareholder reports are no longer sent by mail, unless you specifically request paper copies of the reports by contacting a Janus Henderson representative. Instead, the reports are made available on a website, and you will be notified by mail each time a report is posted and provided with a website link to access the report. You may elect to receive shareholder reports and prospectus updates electronically at janushenderson.com/edelivery. The Funds’ fiscal year ends September 30.
Unless you instruct Janus Henderson otherwise by contacting a Janus Henderson representative, the Funds will mail only one report or prospectus to your address of record (“household”), even if more than one person in your household has a Fund account. This process, known as “householding,” reduces the amount of mail you receive and helps lower Fund expenses. If you decide that you no longer want the mailing of these documents to be combined with the other members of your household, please call a Janus Henderson representative or send a written request signed by one or more shareholder(s) of record. Individual copies will be sent within thirty (30) days after the Funds receive your instructions.
Taxpayer Identification Number
On the application or other appropriate forms, you may be asked to certify that your Social Security or employer identification number is correct and that you are not subject to backup withholding for failing to report income to the IRS. If you are subject to backup withholding, or you did not certify your taxpayer identification number, the IRS requires the Funds to withhold a certain percentage (at the currently applicable rate) of any dividends paid and redemption or exchange proceeds. In addition to this backup withholding, you may be subject to a $50 fee to reimburse the Funds for any penalty that the IRS may impose.
Temporary Suspension of Services
The Funds or their agents may, in case of emergency, temporarily suspend telephone transactions and other shareholder services. As previously noted, the Funds may postpone payment of redemption proceeds for up to seven calendar days. In addition, the right to require the Funds to redeem their Shares may be suspended or the date of payment may be postponed beyond seven calendar days whenever: (i) trading on the NYSE is restricted, as determined by the SEC, or the NYSE is closed (except for holidays and weekends); (ii) the SEC permits such suspension and so orders; or (iii) an emergency exists as determined by the SEC so that disposal of securities or determination of NAV is not reasonably practicable. The exchange privilege may also be suspended in these circumstances.
In addition, a temporary hold may be placed on the disbursement of redemption proceeds from an account if there is a reasonable belief that financial exploitation of a Specified Adult (as defined below) has occurred, is occurring, has been attempted, or will be attempted. This temporary delay will be for an initial period of no more than 15 business days while we conduct an internal review of the facts and circumstances of the suspected financial exploitation. If our internal review supports our belief that actual or attempted financial exploitation has occurred or is occurring, we may extend the hold for up to 10 additional business days. Both the initial and subsequent hold on the disbursement may be terminated or extended by a state regulator or an agency or court of competent jurisdiction. For purposes of this paragraph, the term “Specified Adult” refers to an individual who is (i) a natural person age 65 and older, or (ii) a natural person age 18 and older who is
87 | Janus Investment Fund

reasonably believed to have a mental or physical impairment that renders the individual unable to protect his or her own interests. We may not be aware of factors suggesting financial exploitation of a Specified Adult and may not be able to identify Specified Adults in all circumstances. Furthermore, we are not required to delay the disbursement of redemption proceeds and do not assume any obligation to do so.
88 | Janus Investment Fund

The financial highlights tables are intended to help you understand the Funds’ financial performance for each fiscal period shown. Items “Net asset value, beginning of period” through “Net asset value, end of period” reflect financial results for a single Fund Share. The gross expense ratio reflects expenses prior to any expense offset arrangement and waivers (reimbursements), if applicable. The net expense ratio reflects expenses after any expense offset arrangement and waivers (reimbursements), if applicable. The information for the Funds for the fiscal periods ended September 30 has been audited by PricewaterhouseCoopers LLP, whose report, along with the Funds’ financial statements, is included in the Annual Report, which is available upon request, and incorporated by reference into the SAI.
The total returns in the tables represent the rate that an investor would have earned (or lost) on an investment in Class D Shares of the Funds (assuming reinvestment of all dividends and distributions).
Janus Henderson Balanced Fund – Class D
 
Years ended September 30
 
2022
2021
2020
2019
2018
Net Asset Value, Beginning of Period
$44.40
$38.89
$35.54
$35.30
$32.52
Income/(Loss) from Investment Operations:
 
 
 
 
 
Net investment income/(loss)(1)
0.41
0.42
0.56
0.68
0.58
Net realized and unrealized gain/(loss)
(6.68)
6.04
3.77
1.82
3.89
Total from Investment Operations
(6.27)
6.46
4.33
2.50
4.47
Less Dividends and Distributions:
 
 
 
 
 
Dividends (from net investment income)
(0.41)
(0.49)
(0.59)
(0.67)
(0.58)
Distributions (from capital gains)
(1.68)
(0.46)
(0.39)
(1.59)
(1.11)
Return of capital
Total Dividends and Distributions
(2.09)
(0.95)
(0.98)
(2.26)
(1.69)
Net Asset Value, End of Period
$36.04
$44.40
$38.89
$35.54
$35.30
Total Return*
(14.97)%
16.80%
12.39%
7.95%
14.10%
Net Assets, End of Period (in thousands)
$1,946,256
$2,362,421
$2,022,689
$1,860,900
$1,761,817
Average Net Assets for the Period (in thousands)
$2,286,371
$2,246,350
$1,895,563
$1,759,287
$1,667,210
Ratios to Average Net Assets**:
 
 
 
 
 
Ratio of Gross Expenses
0.70%
0.70%
0.71%
0.72%
0.71%
Ratio of Net Expenses (After Waivers and Expense Offsets)
0.70%
0.70%
0.71%
0.72%
0.71%
Ratio of Net Investment Income/(Loss)
0.98%
0.99%
1.54%
2.00%
1.71%
Portfolio Turnover Rate
79%(2)
60%(2)
90%(2)
81%(2)
88%
*
Total return includes adjustments in accordance with generally accepted accounting principles required at the year or period end and are not annualized for periods of less than one full year.
**
Annualized for periods of less than one full year.
(1)
Per share amounts are calculated based on average shares outstanding during the year or period.
(2)
Portfolio Turnover Rate excludes TBA (to be announced) purchase and sales commitments.
89 | Janus Investment Fund

Janus Henderson Contrarian Fund – Class D
 
Years ended September 30
 
2022
2021
2020
2019
2018
Net Asset Value, Beginning of Period
$31.54
$22.56
$21.70
$21.65
$19.97
Income/(Loss) from Investment Operations:
 
 
 
 
 
Net investment income/(loss)(1)
0.09
0.10
0.17
0.16
0.11
Net realized and unrealized gain/(loss)
(7.79)
9.33
3.19
1.37
3.11
Total from Investment Operations
(7.70)
9.43
3.36
1.53
3.22
Less Dividends and Distributions:
 
 
 
 
 
Dividends (from net investment income)
(0.09)
(0.14)
(0.18)
(0.06)
(0.07)
Distributions (from capital gains)
(2.74)
(0.31)
(2.32)
(1.42)
(1.47)
Return of capital
Total Dividends and Distributions
(2.83)
(0.45)
(2.50)
(1.48)
(1.54)
Net Asset Value, End of Period
$21.01
$31.54
$22.56
$21.70
$21.65
Total Return*
(26.60)%
42.18%
16.29%
8.99%
17.20%
Net Assets, End of Period (in thousands)
$2,122,792
$3,021,999
$2,152,848
$1,988,711
$1,925,749
Average Net Assets for the Period (in thousands)
$2,758,198
$2,773,321
$1,994,412
$1,855,826
$1,841,765
Ratios to Average Net Assets**:
 
 
 
 
 
Ratio of Gross Expenses
0.86%
0.90%
0.72%
0.71%
0.65%
Ratio of Net Expenses (After Waivers and Expense Offsets)
0.86%
0.90%
0.72%
0.71%
0.65%
Ratio of Net Investment Income/(Loss)
0.33%
0.34%
0.83%
0.80%
0.53%
Portfolio Turnover Rate
48%
37%
68%
76%
59%
*
Total return includes adjustments in accordance with generally accepted accounting principles required at the year or period end and are not annualized for periods of less than one full year.
**
Annualized for periods of less than one full year.
(1)
Per share amounts are calculated based on average shares outstanding during the year or period.
90 | Janus Investment Fund

Janus Henderson Enterprise Fund – Class D
 
Years ended September 30
 
2022
2021
2020
2019
2018
Net Asset Value, Beginning of Period
$174.13
$142.10
$139.87
$134.99
$113.64
Income/(Loss) from Investment Operations:
 
 
 
 
 
Net investment income/(loss)(1)
0.18
0.25
0.33
0.37
0.23
Net realized and unrealized gain/(loss)
(28.23)
45.06
8.20
11.50
23.31
Total from Investment Operations
(28.05)
45.31
8.53
11.87
23.54
Less Dividends and Distributions:
 
 
 
 
 
Dividends (from net investment income)
(0.52)
(0.46)
(0.15)
(0.19)
(0.10)
Distributions (from capital gains)
(24.67)
(12.82)
(6.15)
(6.80)
(2.09)
Return of capital
Total Dividends and Distributions
(25.19)
(13.28)
(6.30)
(6.99)
(2.19)
Net Asset Value, End of Period
$120.89
$174.13
$142.10
$139.87
$134.99
Total Return*
(18.82)%
32.99%
6.15%
10.22%
20.99%
Net Assets, End of Period (in thousands)
$1,937,787
$2,507,220
$1,983,824
$2,061,471
$1,973,861
Average Net Assets for the Period (in thousands)
$2,337,701
$2,394,871
$1,974,784
$1,930,540
$1,853,456
Ratios to Average Net Assets**:
 
 
 
 
 
Ratio of Gross Expenses
0.79%
0.79%
0.80%
0.81%
0.81%
Ratio of Net Expenses (After Waivers and Expense Offsets)
0.79%
0.79%
0.80%
0.81%
0.81%
Ratio of Net Investment Income/(Loss)
0.12%
0.15%
0.25%
0.28%
0.18%
Portfolio Turnover Rate
9%
12%
14%
13%
13%
*
Total return includes adjustments in accordance with generally accepted accounting principles required at the year or period end and are not annualized for periods of less than one full year.
**
Annualized for periods of less than one full year.
(1)
Per share amounts are calculated based on average shares outstanding during the year or period.
91 | Janus Investment Fund

Janus Henderson Forty Fund – Class D
 
Years ended September 30
 
2022
2021
2020
2019
2018
Net Asset Value, Beginning of Period
$54.28
$45.24
$35.99
$36.25
$32.02
Income/(Loss) from Investment Operations:
 
 
 
 
 
Net investment income/(loss)(1)
0.01
(0.15)
(2)
0.09
0.04
Net realized and unrealized gain/(loss)
(16.58)
13.04
11.86
2.18
7.15
Total from Investment Operations
(16.57)
12.89
11.86
2.27
7.19
Less Dividends and Distributions:
 
 
 
 
 
Dividends (from net investment income)
(0.03)
(0.08)
(0.01)
Distributions (from capital gains)
(5.21)
(3.85)
(2.53)
(2.53)
(2.95)
Return of capital
Total Dividends and Distributions
(5.24)
(3.85)
(2.61)
(2.53)
(2.96)
Net Asset Value, End of Period
$32.47
$54.28
$45.24
$35.99
$36.25
Total Return*
(33.86)%
30.00%
34.88%
8.03%
24.06%
Net Assets, End of Period (in thousands)
$8,069,316
$12,846,210
$10,287,828
$8,018,389
$7,842,180
Average Net Assets for the Period (in thousands)
$11,038,490
$11,890,281
$8,759,841
$7,517,796
$7,241,280
Ratios to Average Net Assets**:
 
 
 
 
 
Ratio of Gross Expenses
0.69%
0.82%
0.80%
0.79%
0.79%
Ratio of Net Expenses (After Waivers and Expense Offsets)
0.69%
0.82%
0.80%
0.75%
0.73%
Ratio of Net Investment Income/(Loss)
0.03%
(0.29)%
0.00%(3)
0.27%
0.13%
Portfolio Turnover Rate
39%
31%
42%
44%
37%
*
Total return includes adjustments in accordance with generally accepted accounting principles required at the year or period end and are not annualized for periods of less than one full year.
**
Annualized for periods of less than one full year.
(1)
Per share amounts are calculated based on average shares outstanding during the year or period.
(2)
Less than $0.005 on a per share basis.
(3)
Less than 0.005%.
92 | Janus Investment Fund

Janus Henderson Growth and Income Fund – Class D
 
Years ended September 30
 
2022
2021
2020
2019
2018
Net Asset Value, Beginning of Period
$74.09
$59.87
$58.58
$59.27
$51.71
Income/(Loss) from Investment Operations:
 
 
 
 
 
Net investment income/(loss)(1)
0.74
0.67
0.93
1.09
1.01
Net realized and unrealized gain/(loss)
(10.34)
16.11
2.54
2.28
8.51
Total from Investment Operations
(9.60)
16.78
3.47
3.37
9.52
Less Dividends and Distributions:
 
 
 
 
 
Dividends (from net investment income)
(0.76)
(0.70)
(0.96)
(1.09)
(1.01)
Distributions (from capital gains)
(3.76)
(1.86)
(1.22)
(2.97)
(0.95)
Return of capital
Total Dividends and Distributions
(4.52)
(2.56)
(2.18)
(4.06)
(1.96)
Net Asset Value, End of Period
$59.97
$74.09
$59.87
$58.58
$59.27
Total Return*
(14.17)%
28.63%
6.07%
6.71%
18.69%
Net Assets, End of Period (in thousands)
$3,529,397
$4,284,567
$3,506,038
$3,546,939
$3,508,493
Average Net Assets for the Period (in thousands)
$4,238,795
$4,038,177
$3,410,901
$3,396,252
$3,349,596
Ratios to Average Net Assets**:
 
 
 
 
 
Ratio of Gross Expenses
0.75%
0.75%
0.76%
0.76%
0.77%
Ratio of Net Expenses (After Waivers and Expense Offsets)
0.75%
0.75%
0.76%
0.76%
0.77%
Ratio of Net Investment Income/(Loss)
1.04%
0.97%
1.64%
1.95%
1.80%
Portfolio Turnover Rate
17%
11%
24%
13%
13%
*
Total return includes adjustments in accordance with generally accepted accounting principles required at the year or period end and are not annualized for periods of less than one full year.
**
Annualized for periods of less than one full year.
(1)
Per share amounts are calculated based on average shares outstanding during the year or period.
93 | Janus Investment Fund

Janus Henderson Research Fund – Class D
 
Years ended September 30
 
2022
2021
2020
2019
2018
Net Asset Value, Beginning of Period
$71.42
$59.86
$49.98
$53.74
$45.60
Income/(Loss) from Investment Operations:
 
 
 
 
 
Net investment income/(loss)(1)
0.02
(0.01)
0.17
0.24
0.19
Net realized and unrealized gain/(loss)
(17.29)
13.48
14.87
0.50
10.33
Total from Investment Operations
(17.27)
13.47
15.04
0.74
10.52
Less Dividends and Distributions:
 
 
 
 
 
Dividends (from net investment income)
(0.07)
(0.23)
(0.15)
(0.12)
Distributions (from capital gains)
(8.85)
(1.84)
(4.93)
(4.35)
(2.26)
Return of capital
Total Dividends and Distributions
(8.85)
(1.91)
(5.16)
(4.50)
(2.38)
Net Asset Value, End of Period
$45.30
$71.42
$59.86
$49.98
$53.74
Total Return*
(27.96)%
22.89%
32.40%
3.20%
23.85%
Net Assets, End of Period (in thousands)
$10,017,030
$14,715,777
$12,635,778
$10,221,640
$10,550,222
Average Net Assets for the Period (in thousands)
$13,156,776
$14,113,628
$11,047,912
$9,901,606
$9,778,967
Ratios to Average Net Assets**:
 
 
 
 
 
Ratio of Gross Expenses
0.64%
0.66%
0.66%
0.69%
0.72%
Ratio of Net Expenses (After Waivers and Expense Offsets)
0.64%
0.66%
0.66%
0.68%
0.69%
Ratio of Net Investment Income/(Loss)
0.03%
(0.02)%
0.32%
0.50%
0.39%
Portfolio Turnover Rate
32%
31%
38%
41%
43%
*
Total return includes adjustments in accordance with generally accepted accounting principles required at the year or period end and are not annualized for periods of less than one full year.
**
Annualized for periods of less than one full year.
(1)
Per share amounts are calculated based on average shares outstanding during the year or period.
94 | Janus Investment Fund

Janus Henderson Triton Fund – Class D
 
Years ended September 30
 
2022
2021
2020
2019
2018
Net Asset Value, Beginning of Period
$39.82
$30.99
$30.79
$33.89
$28.56
Income/(Loss) from Investment Operations:
 
 
 
 
 
Net investment income/(loss)(1)
(0.10)
(0.14)
(0.07)
0.01
0.02
Net realized and unrealized gain/(loss)
(8.64)
10.56
1.60
(1.21)
6.77
Total from Investment Operations
(8.74)
10.42
1.53
(1.20)
6.79
Less Dividends and Distributions:
 
 
 
 
 
Dividends (from net investment income)
Distributions (from capital gains)
(6.93)
(1.59)
(1.33)
(1.90)
(1.46)
Return of capital
Total Dividends and Distributions
(6.93)
(1.59)
(1.33)
(1.90)
(1.46)
Net Asset Value, End of Period
$24.15
$39.82
$30.99
$30.79
$33.89
Total Return*
(26.39)%
33.85%
4.98%
(2.41)%
24.67%
Net Assets, End of Period (in thousands)
$864,531
$1,289,904
$1,057,332
$1,191,950
$1,302,196
Average Net Assets for the Period (in thousands)
$1,111,102
$1,297,945
$1,088,543
$1,183,056
$1,190,715
Ratios to Average Net Assets**:
 
 
 
 
 
Ratio of Gross Expenses
0.79%
0.78%
0.80%
0.80%
0.80%
Ratio of Net Expenses (After Waivers and Expense Offsets)
0.79%
0.78%
0.80%
0.80%
0.80%
Ratio of Net Investment Income/(Loss)
(0.32)%
(0.37)%
(0.25)%
0.04%
0.07%
Portfolio Turnover Rate
8%
24%
32%
26%
21%
*
Total return includes adjustments in accordance with generally accepted accounting principles required at the year or period end and are not annualized for periods of less than one full year.
**
Annualized for periods of less than one full year.
(1)
Per share amounts are calculated based on average shares outstanding during the year or period.
95 | Janus Investment Fund

Janus Henderson Venture Fund – Class D
 
Years ended September 30
 
2022
2021
2020
2019
2018
Net Asset Value, Beginning of Period
$110.41
$84.98
$79.17
$90.73
$78.25
Income/(Loss) from Investment Operations:
 
 
 
 
 
Net investment income/(loss)(1)
(0.32)
(0.47)
(0.22)
(0.08)
(0.08)
Net realized and unrealized gain/(loss)
(27.95)
31.52
9.21
(4.75)
16.67
Total from Investment Operations
(28.27)
31.05
8.99
(4.83)
16.59
Less Dividends and Distributions:
 
 
 
 
 
Dividends (from net investment income)
Distributions (from capital gains)
(12.33)
(5.62)
(3.18)
(6.73)
(4.11)
Return of capital
Total Dividends and Distributions
(12.33)
(5.62)
(3.18)
(6.73)
(4.11)
Net Asset Value, End of Period
$69.81
$110.41
$84.98
$79.17
$90.73
Total Return*
(28.42)%
37.07%
11.52%
(3.87)%
22.09%
Net Assets, End of Period (in thousands)
$1,500,311
$2,228,324
$1,731,098
$1,668,639
$1,843,494
Average Net Assets for the Period (in thousands)
$1,877,171
$2,160,434
$1,645,324
$1,668,200
$1,712,398
Ratios to Average Net Assets**:
 
 
 
 
 
Ratio of Gross Expenses
0.79%
0.78%
0.80%
0.80%
0.80%
Ratio of Net Expenses (After Waivers and Expense Offsets)
0.79%
0.78%
0.80%
0.80%
0.80%
Ratio of Net Investment Income/(Loss)
(0.37)%
(0.45)%
(0.28)%
(0.10)%
(0.09)%
Portfolio Turnover Rate
14%
21%
25%
19%
28%
*
Total return includes adjustments in accordance with generally accepted accounting principles required at the year or period end and are not annualized for periods of less than one full year.
**
Annualized for periods of less than one full year.
(1)
Per share amounts are calculated based on average shares outstanding during the year or period.
96 | Janus Investment Fund

This glossary provides a more detailed description of some of the types of securities, investment strategies, and other instruments in which the Funds may invest, as well as some general investment terms. The Funds may invest in these instruments to the extent permitted by their investment objectives and policies. The Funds are not limited by this discussion and may invest in any other types of instruments not precluded by the policies discussed elsewhere in this Prospectus.
Equity and Debt Securities
Average-Weighted Effective Maturity is a measure of a bond’s maturity. The stated maturity of a bond is the date when the issuer must repay the bond’s entire principal value to an investor. Some types of bonds may also have an “effective maturity” that is shorter than the stated date due to prepayment or call provisions. Securities without prepayment or call provisions generally have an effective maturity equal to their stated maturity. Average-weighted effective maturity is calculated by averaging the effective maturity of bonds held by a Fund with each effective maturity “weighted” according to the percentage of net assets that it represents.
Bank loans include institutionally-traded floating and fixed-rate debt securities generally acquired as a participation interest in or assignment of a loan originated by a lender or financial institution. Assignments and participations involve credit, interest rate, and liquidity risk. Interest rates on floating rate securities adjust with interest rate changes and/or issuer credit quality.
Bonds are debt securities issued by a company, municipality, government, or government agency. The issuer of a bond is required to pay the holder the amount of the loan (or par value of the bond) at a specified maturity and to make scheduled interest payments.
Common stocks are equity securities representing shares of ownership in a company and usually carry voting rights and earn dividends. Unlike preferred stock, dividends on common stock are not fixed but are declared at the discretion of the issuer’s board of directors.
Convertible securities are preferred stocks or bonds that pay a fixed dividend or interest payment and are convertible into common stock at a specified price or conversion ratio.
Debt securities are securities representing money borrowed that must be repaid at a later date. Such securities have specific maturities and usually a specific rate of interest or an original purchase discount.
Depositary receipts are receipts for shares of a foreign-based corporation that entitle the holder to dividends and capital gains on the underlying security. Receipts include those issued by domestic banks (American Depositary Receipts), foreign banks (Global or European Depositary Receipts), and broker-dealers (depositary shares).
Duration is a measurement of price sensitivity to interest rate changes. Unlike average maturity, duration reflects both principal and interest payments. Generally, the higher the coupon rate on a bond, the lower its duration will be. The duration of a bond portfolio is calculated by averaging the duration of bonds held by a Fund with each duration “weighted” according to the percentage of net assets that it represents. Because duration accounts for interest payments, a Fund’s duration is usually shorter than its average maturity. Securities with longer durations tend to be more sensitive to changes in interest rates, and are usually more volatile than securities with shorter duration. For example, the price of a bond portfolio with an average duration of five years would be expected to fall approximately 5% if interest rates rose by one percentage point. A Fund with a longer portfolio duration is more likely to experience a decrease in its share price as interest rates rise.
Equity securities generally include domestic and foreign common stocks; preferred stocks; securities convertible into common stocks or preferred stocks; warrants to purchase common or preferred stocks; and other securities with equity characteristics.
Exchange-traded funds (“ETFs”) are index-based investment companies which hold substantially all of their assets in securities with equity characteristics. As a shareholder of another investment company, a Fund would bear its pro rata portion of the other investment company’s expenses, including advisory fees, in addition to the expenses the Fund bears directly in connection with its own operations.
Fixed-income securities are securities that pay a specified rate of return. The term generally includes short-and long-term government, corporate, and municipal obligations that pay a specified rate of interest, dividends, or coupons for a specified period of time. Coupon and dividend rates may be fixed for the life of the issue or, in the case of adjustable and floating rate securities, for a shorter period.
97 | Janus Investment Fund

High-yield/high-risk bonds are bonds that are rated below investment grade by the primary rating agencies (i.e., BB+ or lower by Standard & Poor’s and Fitch, or Ba1 or lower by Moody’s). Other terms commonly used to describe such bonds include “lower rated bonds,” “non-investment grade bonds,” and “junk bonds.”
Mortgage- and asset-backed securities are shares in a pool of mortgages or other debt instruments. These securities are generally pass-through securities, which means that principal and interest payments on the underlying securities (less servicing fees) are passed through to shareholders on a pro rata basis.
Passive foreign investment companies (“PFICs”) are any foreign corporations which generate certain amounts of passive income or hold certain amounts of assets for the production of passive income. Passive income includes dividends, interest, royalties, rents, and annuities. To avoid taxes and interest that a Fund must pay if these investments are profitable, the Fund may make various elections permitted by the tax laws. These elections could require that a Fund recognize taxable income, which in turn must be distributed, before the securities are sold and before cash is received to pay the distributions.
Preferred stocks are equity securities that generally pay dividends at a specified rate and have preference over common stock in the payment of dividends and liquidation. Preferred stock generally does not carry voting rights.
Private placements are securities that are subject to legal and/or contractual restrictions on their sales. These securities may not be listed on an exchange and may have no active trading market. As a result of the absence of a public trading market, the prices of these securities may be more volatile and more difficult to determine than publicly traded securities and these securities may involve heightened risk as compared to investments in securities of publicly traded companies.
Real estate investment trust (“REIT”) is an investment trust that operates through the pooled capital of many investors who buy its shares. Investments are in direct ownership of either income property or mortgage loans. A REIT may be listed on an exchange or traded over-the-counter.
Restricted securities are securities acquired through nonpublic transactions that have limitations on their resale. Restricted securities are unregistered and may only be resold under certain circumstances as noted in Rule 144A of the Securities Act of 1933, as amended (the “1933 Act”).
Senior securities are securities that rank above an issuing company’s other securities in the event of a bankruptcy or liquidation, which means a Fund would be in line to receive repayment of its investment before certain of the company’s other creditors.
“To be announced” or “TBA” commitments are forward agreements for the purchase or sale of securities, including mortgage-backed securities, for a fixed price, with payment and delivery on an agreed upon future settlement date. The specific securities to be delivered are not identified at the trade date. However, delivered securities must meet specified terms, including issuer, rate, and mortgage terms. At the time the TBA commitment is made, the transaction is recorded and thereafter the value of such securities is reflected each day in determining a Fund’s net asset value (“NAV”). Because a Fund is generally not required to pay for the security until the settlement date, if the Fund remains substantially fully invested at a time when TBA commitment purchases are outstanding, the purchases may result in a form of leverage.
U.S. Government securities include direct obligations of the U.S. Government that are supported by its full faith and credit. Treasury bills have initial maturities of less than one year, Treasury notes have initial maturities of one to ten years, and Treasury bonds may be issued with any maturity but generally have maturities of at least ten years. U.S. Government securities also include indirect obligations of the U.S. Government that are issued by federal agencies and government sponsored entities. Unlike Treasury securities, agency securities generally are not backed by the full faith and credit of the U.S. Government. Some agency securities are supported by the right of the issuer to borrow from the Treasury, others are supported by the discretionary authority of the U.S. Government to purchase the agency’s obligations, and others are supported only by the credit of the sponsoring agency.
Variable and floating rate securities have variable or floating rates of interest and, under certain limited circumstances, may have varying principal amounts. Variable and floating rate securities pay interest at rates that are adjusted periodically according to a specified formula, usually with reference to some interest rate index or market interest rate. The floating rate tends to decrease the security’s price sensitivity to changes in interest rates.
Warrants are securities, typically issued with preferred stock or bonds, which give the holder the right to buy a proportionate amount of common stock at a specified price. The specified price is usually higher than the market price at the time of issuance of the warrant. The right may last for a period of years or indefinitely.
98 | Janus Investment Fund

Futures, Options, and Other Derivatives
Credit default swaps are a specific kind of counterparty agreement that allows the transfer of third party credit risk from one party to the other. One party in the swap is a lender and faces credit risk from a third party, and the counterparty in the credit default swap agrees to insure this risk in exchange for regular periodic payments.
Derivatives are instruments that have a value derived from, or directly linked to, an underlying asset (stock, bond, commodity, currency, interest rate or market index). Types of derivatives can include, but are not limited to options, forward currency contracts, swaps, and futures contracts.
Equity swaps involve the exchange by two parties of future cash flow (e.g., one cash flow based on a referenced interest rate and the other based on the performance of stock or a stock index).
Forward contracts are contracts to purchase or sell a specified amount of a financial instrument for an agreed upon price at a specified time. Forward contracts are not currently exchange-traded and are typically negotiated on an individual basis. A Fund may enter into forward currency contracts for investment purposes or to hedge against declines in the value of securities denominated in, or whose value is tied to, a currency other than the U.S. dollar or to reduce the impact of currency appreciation on purchases of such securities. It may also enter into forward contracts to purchase or sell securities or other financial indices.
Futures contracts are contracts that obligate the buyer to receive and the seller to deliver an instrument or money at a specified price on a specified date. A Fund may buy and sell futures contracts on foreign currencies, securities, and financial indices including indices of U.S. Government, foreign government, equity, or fixed-income securities. A Fund may also buy options on futures contracts. An option on a futures contract gives the buyer the right, but not the obligation, to buy or sell a futures contract at a specified price on or before a specified date. Futures contracts and options on futures are standardized and traded on designated exchanges. To the extent a Fund engages in futures contracts on foreign exchanges, such exchanges may not provide the same protection as U.S. exchanges.
Indexed/structured securities are typically short- to intermediate-term debt securities whose value at maturity or interest rate is linked to currencies, interest rates, equity securities, indices, commodity prices, or other financial indicators. Such securities may be positively or negatively indexed (e.g., their value may increase or decrease if the reference index or instrument appreciates). Indexed/structured securities may have return characteristics similar to direct investments in the underlying instruments and may be more volatile than the underlying instruments.
Interest rate swaps involve the exchange by two parties of their respective commitments to pay or receive interest (e.g., an exchange of floating rate payments for fixed rate payments).
Options are the right, but not the obligation, to buy or sell a specified amount of securities or other assets on or before a fixed date at a predetermined price. A Fund may purchase and write put and call options on securities, securities indices, and foreign currencies. A Fund may purchase or write such options individually or in combination.
Total return swaps involve an exchange by two parties in which one party makes payments based on a set rate, either fixed or variable, while the other party makes payments based on the return of an underlying asset, which includes both the income it generates and any capital gains over the payment period. A fixed-income total return swap may be written on many different kinds of underlying reference assets, and may include different indices for various kinds of debt securities (e.g., U.S. investment grade bonds, high-yield bonds, or emerging market bonds).
Other Investments, Strategies, and/or Techniques
Cash sweep program is an arrangement in which a Fund’s uninvested cash balance is used to purchase shares of affiliated or non-affiliated money market funds or cash management pooled investment vehicles that operate pursuant to the provisions of the Investment Company Act of 1940, as amended, that govern the operation of money market funds at the end of each day.
Diversification is a classification given to a fund under the Investment Company Act of 1940, as amended. Funds are classified as either diversified or nondiversified. To be classified as diversified under the Investment Company Act of 1940, as amended, a fund may not, with respect to 75% of its total assets, invest more than 5% of its total assets in any issuer and may not own more than 10% of the outstanding voting securities of an issuer. A fund that is classified as nondiversified under the Investment Company Act of 1940, as amended, on the other hand, has the flexibility to take larger positions in securities than a fund that is classified as diversified. However, because the appreciation or depreciation of a single security
99 | Janus Investment Fund

may have a greater impact on the net asset value of a fund which is classified as nondiversified, its share price can be expected to fluctuate more than a comparable fund which is classified as diversified.
Leverage is investment exposure which exceeds the initial amount invested. Leverage occurs when a Fund increases its assets available for investment using derivatives or other similar transactions. In addition, other investment techniques, such as short sales, can create a leveraging effect.
Market capitalization is the most commonly used measure of the size and value of a company. It is computed by multiplying the current market price of a share of the company’s stock by the total number of its shares outstanding. Market capitalization is an important investment criterion for certain funds, while others do not emphasize investments in companies of any particular size.
Repatriation is the ability to move liquid financial assets from a foreign country to an investor’s country of origin.
Repurchase agreements involve the purchase of a security by a Fund and a simultaneous agreement by the seller (generally a bank or dealer) to repurchase the security from the Fund at a specified date or upon demand. This technique offers a method of earning income on idle cash.
Short sales in which a Fund may engage may be either “short sales against the box” or other short sales. Short sales against the box involve selling short a security that a Fund owns, or the Fund has the right to obtain the amount of the security sold short at a specified date in the future. A Fund may also enter into a short sale to hedge against anticipated declines in the market price of a security or to reduce portfolio volatility. If the value of a security sold short increases prior to the scheduled delivery date, the Fund loses the opportunity to participate in the gain.
When-issued, delayed delivery, and forward commitment transactions generally involve the purchase of a security with payment and delivery at some time in the future – i.e., beyond normal settlement. New issues of stocks and bonds, private placements, and U.S. Government securities may be sold in this manner.
100 | Janus Investment Fund

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You can make inquiries and request other information, including a Statement of Additional Information, annual report, or semiannual report (as they become available), free of charge, by contacting a Janus Henderson representative at 1-800-525-3713. The Funds’ Statement of Additional Information and most recent annual and semiannual reports are also available, free of charge, at janushenderson.com/reports. Additional information about the Funds’ investments is available in the Funds’ annual and semiannual reports. In the Funds’ annual reports, you will find a discussion of the market conditions and investment strategies that significantly affected the Funds’ performance during their last fiscal period.
The Statement of Additional Information provides detailed information about the Funds and is incorporated into this Prospectus by reference. Reports and other information about the Funds are available on the Electronic Data Gathering Analysis and Retrieval (EDGAR) Database on the SEC’s website at http://www.sec.gov. You may obtain copies of this information, after paying a duplicating fee, by electronic request at the following e-mail address: [email protected].
janushenderson.com
P.O. Box 219109
Kansas City, MO 64121-9109
1-800-525-3713
The Trust’s Investment Company Act File No. is 811-1879.