Prospectus for MainStay Equity Funds

MainStay Funds®

February 28, 2024

                       
 

Class A

Investor Class

Class B1

Class C

Class I

Class P

Class R1

Class R2

Class R3

Class R6

SIMPLE

Class

U.S. Equity

                     

MainStay Epoch U.S. Equity Yield Fund

EPLPX

EPLIX

EPLBX

EPLKX

EPLCX

-

-

-

-

EPLDX

EPLMX

MainStay Fiera SMID Growth Fund

APSRX

-

-

APSLX

APSGX

-

-

-

-

APSDX

-

MainStay PineStone U.S. Equity Fund

FCUEX

-

-

FCUCX

FCUIX

FCUPX

-

-

-

FCUDX

-

MainStay S&P 500 Index Fund

MSXAX

MYSPX

-

-

MSPIX

-

-

-

-

-

MSXMX

MainStay Winslow Large Cap Growth Fund

MLAAX

MLINX

MLABX

MLACX

MLAIX

-

MLRRX

MLRTX

MLGRX

MLRSX

MLRMX

MainStay WMC Enduring Capital Fund

MSOAX

MCSSX

MOPBX

MGOCX

MSOIX

-

-

-

-

MCSDX

-

MainStay WMC Growth Fund

KLGAX

KLGNX

KLGBX

KLGCX

KLGIX

-

-

-

-

KLGDX

-

MainStay WMC Small Companies Fund

MOPAX

MOINX

MOTBX

MOPCX

MOPIX

-

-

-

-

-

-

MainStay WMC Value Fund

MAPAX

MSMIX

MAPBX

MMPCX

MUBFX

-

-

-

-

MMPDX

-

International

                     

MainStay Epoch International Choice Fund

ICEVX

ICELX

-

ICEWX

ICEUX

-

-

-

-

-

ICERX

MainStay PineStone International Equity Fund

FCIRX

FCIKX

-

FCICX

FCIUX

FCIHX

-

-

-

FCIWX

-

MainStay WMC International Research Equity Fund

MYITX

MYINX

-

MYICX

MYIIX

-

-

-

-

-

-

Emerging Markets

                     

MainStay Candriam Emerging Markets Equity Fund

MCYAX

MCYVX

-

MCYCX

MCYIX

-

-

-

-

MCYSX

-

Global

                     

MainStay Epoch Capital Growth Fund

MECDX

MECVX

-

MECEX

MECFX

-

-

-

-

-

-

MainStay Epoch Global Equity Yield Fund

EPSPX

EPSIX

-

EPSKX

EPSYX

-

-

-

-

EPSRX

-

MainStay PineStone Global Equity Fund

FCGEX

-

-

FCGYX

FCGIX

FCGPX

-

-

-

FCGMX

-

1. Class B shares are closed to all new purchases as well as additional investments by existing Class B shareholders.


Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the accuracy or adequacy of this Prospectus. Any representation to the contrary is a criminal offense.



Table of Contents

U.S. Equity

   

MainStay Epoch U.S. Equity Yield Fund

5

MainStay Fiera SMID Growth Fund

10

MainStay PineStone U.S. Equity Fund

16

MainStay PineStone U.S. Equity Fund (Class P)

21

MainStay S&P 500 Index Fund

26

MainStay Winslow Large Cap Growth Fund

31

MainStay WMC Enduring Capital Fund

36

MainStay WMC Growth Fund

41

MainStay WMC Small Companies Fund

46

MainStay WMC Value Fund

51

International

   

MainStay Epoch International Choice Fund

56

MainStay PineStone International Equity Fund

63

MainStay PineStone International Equity Fund (Class P)

69

MainStay WMC International Research Equity Fund

75

Emerging Markets

   

MainStay Candriam Emerging Markets Equity Fund

81

Global

   

MainStay Epoch Capital Growth Fund

88

MainStay Epoch Global Equity Yield Fund

94

MainStay PineStone Global Equity Fund

100

MainStay PineStone Global Equity Fund (Class P)

106

More About Investment Strategies and Risks

112

Shareholder Guide

130

Know With Whom You Are Investing

171

Financial Highlights

181

Appendix A – Intermediary-Specific Sales Charge
Waivers and Discounts

237


MainStay Epoch U.S. Equity Yield Fund

Investment Objective

The Fund seeks current income and capital appreciation.

Fees and Expenses of the Fund

The table below describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund. In addition, different financial intermediary firms and financial professionals may impose different sales loads and waivers. More information about these and other discounts or waivers is available from your financial professional, in the "Information on Sales Charges" section starting on page 139 of the Prospectus and Appendix A – Intermediary-Specific Sales Charge Waivers and Discounts, and in the "Alternative Sales Arrangements" section on page 147 of the Statement of Additional Information.

                                                             

 

 

Class A

 

Investor  Class

 

Class B1

 

Class C

 

Class I

 

Class R6 

 

SIMPLE Class

 

Shareholder Fees (fees paid directly from your investment)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

 

5.50

%

 

5.00

%

 

None

 

 

 

None

 

 

 

None

 

 

 

None

 

 

 

None

 

 

 

 

Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)

 

None

2 

 

 

None

2 

 

 

5.00

%

 

1.00

%

 

None

 

 

 

None

 

 

 

None

 

 

 

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Management Fees (as an annual percentage of the Fund's average daily net assets)3

 

0.69

%

 

0.69

%

 

0.69

%

 

0.69

%

 

0.69

%

 

0.69

%

 

0.69

%

 

 

Distribution and/or Service (12b-1) Fees

 

0.25

%

 

0.25

%

 

1.00

%

 

1.00

%

 

None

 

 

 

None

 

 

 

0.50

%

 

 

Other Expenses

 

0.12

%

 

0.45

%

 

0.45

%

 

0.45

%

 

0.12

%

 

0.04

%

 

0.19

%

 

 

Total Annual Fund Operating Expenses

 

1.06

%

 

1.39

%

 

2.14

%

 

2.14

%

 

0.81

%

 

0.73

%

 

1.38

%

 

 

Waivers / Reimbursements4,5

 

0.00

%

 

(0.06

)%

 

(0.06

)%

 

(0.06

)%

 

(0.08

)%

 

0.00

%

 

0.00

%

 

 

Total Annual Fund Operating Expenses After Waivers / Reimbursements4,5

 

1.06

%

 

1.33

%

 

2.08

%

 

2.08

%

 

0.73

%

 

0.73

%

 

1.38

%

 

1. Class B shares are closed to all new purchases as well as additional investments by existing Class B shareholders.

2.  No initial sales charge applies on investments of $1 million or more (and certain other qualified purchases). However, a contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within 18 months of the date of purchase on shares that were purchased without an initial sales charge.

3. The management fee is as follows: 0.70% on assets up to $500 million; 0.68% on assets from $500 million to $1 billion; 0.66% on assets from $1 billion to $2 billion; and 0.65% on assets over $2 billion.

4. New York Life Investment Management LLC ("New York Life Investments") has contractually agreed to waive fees and/or reimburse expenses so that Total Annual Fund Operating Expenses (excluding taxes, interest, litigation, extraordinary expenses, brokerage and other transaction expenses relating to the purchase or sale of portfolio investments, and acquired (underlying) fund fees and expenses) for Class I shares do not exceed 0.73% of its average daily net assets. This agreement will remain in effect until February 28, 2025, and thereafter shall renew automatically for one-year terms unless New York Life Investments provides written notice of termination prior to the start of the next term or upon approval of the Board of Trustees of the Fund.

5.  New York Life Investments has contractually agreed to waive fees and/or reimburse expenses so that the transfer agency expenses charged to each of the Fund’s share classes do not exceed 0.35% of that share class’s average daily net assets on an annual basis after deducting any applicable Fund or class-level expense reimbursements or small account fees. This agreement will remain in effect until February 28, 2025, and thereafter shall renew automatically for one-year terms unless New York Life Investments provides written notice of termination prior to the start of the next term or upon approval of the Board of Trustees of the Fund.

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 whether or not you redeem all of your shares at the end of those periods (except as indicated with respect to Class B and Class C shares). The Example reflects Class B and Class C shares converting into Investor Class shares in years 9-10; expenses could be lower if you are eligible to convert to Class A shares instead. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects the contractual fee waiver and/or expense reimbursement arrangement, if applicable, for the current duration of the arrangement only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

                                           

   Expenses After

Class A

 

 

Investor

Class B

Class C

Class I

 

Class R6

 

SIMPLE

 

 

 

 

 

Class

Assuming no redemption

 

 

Assuming redemption at end of period

Assuming no redemption

 

 

Assuming redemption at end of period

 

 

 

 

Class

 

   1 Year

$      652

 

 

$      629

 

$      211

 

 

$      711

 

$        211

 

 

$      311

 

$        75

 

$        75

 

$      140

 

   3 Years

$      869

 

 

$      912

 

$      664

 

 

$      964

 

$        664

 

 

$      664

 

$      251

 

$      233

 

$      437

 

   5 Years

$   1,103

 

 

$   1,217

 

$   1,144

 

 

$   1,344

 

$        1,144

 

 

$   1,144

 

$      442

 

$      406

 

$      755

 

   10 Years

$   1,773

 

 

$   2,080

 

$   2,277

 

 

$   2,277

 

$        2,277

 

 

$   2,277

 

$      994

 

$      906

 

$   1,657

 

5


MainStay Epoch U.S. Equity Yield Fund

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 19% of the average value of its portfolio.

Principal Investment Strategies

The Fund generally invests in a diversified portfolio consisting of equity securities of U.S. companies that have a history of attractive dividend yields and positive growth in operating cash flow. Under normal circumstances, the Fund invests at least 80% of its assets (net assets plus any borrowings for investment purposes) in equity securities of dividend-paying U.S. companies across all market capitalizations. The Fund may invest up to 15% of its net assets in foreign securities. An issuer of a security is considered to be a U.S. or foreign issuer based on the issuer's "country of risk" (or similar designation) as determined by a third-party such as Bloomberg.

Investment Process: Epoch Investment Partners, Inc., the Fund's Subadvisor, invests primarily in companies that generate increasing levels of free cash flow and have management teams that the Subadvisor believes allocate free cash flow effectively to create shareholder value.

The security selection process focuses on free-cash-flow analytics as opposed to traditional accounting-based metrics. The Subadvisor seeks to identify companies with a consistent, straightforward ability to both generate free cash flow and to intelligently allocate it among internal reinvestment opportunities, acquisitions, dividends, share repurchases and/or debt reduction.

The Subadvisor seeks to find and invest in companies that meet its definition of quality-companies that are free cash flow positive or becoming free cash flow positive, and that are led by strong management. The Subadvisor evaluates whether a company has a focus on shareholder yield by analyzing the company's existing cash dividend, the company's share repurchase activities, and the company's debt reduction activities as well as the likelihood of positive changes to each of these criteria, among other factors. Material environmental, social and governance ("ESG") factors are identified and monitored by the Subadvisor. Material ESG factors vary by company and industry, but the Subadvisor pays particular attention to factors relating to climate change and corporate governance. This information is taken into account by the Subadvisor in making investment decisions. Material ESG factors are identified and monitored by the Subadvisor through review of ESG information published by the company (where relevant) or selected specialist third-party research and data providers. While the Subadvisor considers ESG factors in the investment decision-making process of the Fund, this does not mean that ESG considerations are the sole or foremost considerations for investment decisions.

The Subadvisor may sell or reduce a position in a security when it believes its investment objectives have been met or if the investment thesis is failing to materialize. The Subadvisor may also sell or reduce a position in a security if it sees an interruption to the dividend policy, a deterioration in fundamentals or when the security is deemed less attractive relative to another security on a return/risk basis.

Principal Risks

You can lose money by investing in 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 governmental agency. The investments selected by the Subadvisor may underperform the market in which the Fund invests or other investments. The Fund may receive large purchase or redemption orders which may have adverse effects on performance if the Fund were required to sell securities, invest cash or hold a relatively large amount of cash at times when it would not otherwise do so.

The principal risks of investing in the Fund are summarized below.

Market Risk: Changes in markets may cause the value of investments to fluctuate, which could cause the Fund to underperform other funds with similar investment objectives and strategies. Such changes may be rapid and unpredictable. From time to time, markets may experience periods of stress as a result of various market, economic and geopolitical factors for potentially prolonged periods that may result in: (i) increased market volatility; (ii) reduced market liquidity; and (iii) increased redemptions of shares. Such conditions may add significantly to the risk of volatility in the net asset value of the Fund's shares and adversely affect the Fund and its investments.

Portfolio Management Risk: The investment strategies, practices and risk analyses used by the Subadvisor may not produce the desired results or expected returns. The Subadvisor may give consideration to certain ESG criteria when evaluating an investment opportunity. The application of ESG criteria may result in the Fund (i) having exposure to certain securities or industry sectors that are significantly different than the composition of the Fund's benchmark; and (ii) performing differently than other funds and strategies in its peer group that do not take into account ESG criteria or the Fund's benchmark.

Equity Securities Risk: Investments in common stocks and other equity securities are particularly subject to the risk of changing economic, stock market, industry and company conditions and the risks inherent in the ability to anticipate such changes that can adversely affect the value of portfolio holdings.

Dividend-Paying Stock Risk: Emphasis on equity and equity-related securities that produce income or other distributions involves the risk that such securities may fall out of favor with investors and underperform the market. Depending upon market conditions, income producing stocks that meet the Fund’s investment criteria may not be widely available and/or may be highly concentrated in only a few market sectors. This may limit the

6


MainStay Epoch U.S. Equity Yield Fund

ability of the Fund to produce current income while remaining fully diversified. Also, an issuer may reduce or eliminate its income payments or other distributions, particularly during a market downturn. The distributions received may not qualify as income for Fund investors.

Value Stock Risk: Value stocks may never reach what the Subadvisor believes is their full value or they may go down in value. In addition, different types of stocks tend to shift in and out of favor depending on market and economic conditions, and therefore the Fund's performance may be lower or higher than that of funds that invest in other types of equity securities.

Market Capitalization Risk: Investments in securities issued by small-, mid-, or large-cap companies will be subject to the risks associated with securities issued by companies of the applicable market capitalization.  Securities of small-cap and mid-cap companies may be subject to greater price volatility, significantly lower trading volumes, cyclical, static or moderate growth prospects and greater spreads between their bid and ask prices than securities of larger companies. Smaller capitalization companies frequently rely on narrower product lines and niche markets and may be more vulnerable to adverse business or market developments.  Securities issued by larger companies may have less growth potential and may not be able to attain the high growth rates of successful smaller companies, especially during strong economic periods.  In addition, larger companies may be less capable of responding quickly to competitive challenges and industry changes, including those resulting from improvements in technology, and may suffer sharper price declines as a result of earnings disappointments.  There is a risk that the securities issued by companies of a certain market capitalization may underperform the broader market at any given time.

Foreign Securities Risk: An issuer of a security is considered to be a U.S. or foreign issuer based on the issuer’s “country of risk” (or similar designation) as determined by a third party such as Bloomberg (or another similar third party). The issuer’s “country of risk” is determined based on a number of criteria, which may change from time to time and currently include, but are not limited to, its country of domicile, the primary stock exchange on which it trades, the location from which the majority of its revenue comes, and its reporting currency. Although a Fund will generally rely on an issuer’s “country of risk” (or similar designation) as determined by Bloomberg (or another similar third party) when categorizing securities as either U.S. or foreign-based, it is not required to do so.

Investments in foreign (non-U.S.) securities may be riskier than investments in U.S. securities. Foreign regulatory regimes and securities markets can have less stringent investor protections and disclosure standards and less liquid trading markets than U.S. regulatory regimes and securities markets, and can experience political, social and economic developments that may affect the value of investments in foreign securities. Foreign securities may also subject the Fund's investments to changes in currency rates. Changes in the value of foreign currencies may make the return on an investment increase or decrease, unrelated to the quality or performance of the investment itself. Economic sanctions may be, and have been, imposed against certain countries, organizations, companies, entities and/or individuals. Economic sanctions and other similar governmental actions or developments could, among other things, effectively restrict or eliminate the Fund’s ability to purchase or sell certain foreign securities or groups of foreign securities, and thus may make the Fund’s investments in such securities less liquid or more difficult to value. Such sanctions may also cause a decline in the value of securities issued by the sanctioned country or companies located in or economically tied to the sanctioned country. In addition, as a result of economic sanctions and other similar governmental actions or developments, the Fund may be forced to sell or otherwise dispose of foreign investments at inopportune times or prices. The Fund may seek to hedge against its exposure to changes in the value of foreign currency, but there is no guarantee that such hedging techniques will be successful in reducing any related foreign currency valuation risk.

Past Performance

The following bar chart and table provide some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual returns compare with those of a broad measure of market performance, as well as an additional index and a composite index over time. Sales loads, if any, are not reflected in the bar chart. If they were, returns would be less than those shown. In accordance with new regulatory requirements, the Fund has selected the Russell 3000® Index, which represents a broad measure of market performance, as a replacement for the Russell 1000® Value Index. The table also includes the average annual returns of the Russell 1000® Value Index and the U.S. Equity Yield Component Index, which are generally representative of the market sectors or types of investments in which the Fund invests. Index returns reflect no deductions for fees, expenses or taxes, except for foreign withholding taxes where applicable.

Performance data for the classes varies based on differences in their fee and expense structures. Performance data is not shown for classes with less than one calendar year of performance. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Please visit newyorklifeinvestments.com/funds for more recent performance information.

7


MainStay Epoch U.S. Equity Yield Fund

Annual Returns, Class I Shares

(by calendar year 2014-2023)

PerformanceBarChartData(2014:14.85,2015:-2.49,2016:14.66,2017:16.91,2018:-5.37,2019:23.97,2020:0.24,2021:22.98,2022:-2.57,2023:8.62)

     

Best Quarter

 

2022, Q4

13.65

%

Worst Quarter

 

2020, Q1

-23.86

%

Average Annual Total Returns (for the periods ended December 31, 2023)

                 

 

 

 

 

 

10 Years or

 

Inception

 

       1 Year

5 Years

Since

 

 

 

 

 

Inception

Return Before Taxes

 

 

 

 

 

 

 

 

Class I

12/3/2008

 

8.62

%

10.09

%

8.67

%

Return After Taxes on Distributions

 

 

 

 

 

 

 

 

Class I

 

 

7.18

%

9.15

%

7.53

%

Return After Taxes on Distributions and Sale of Fund Shares

 

 

 

 

 

 

 

 

Class I

 

 

6.05

%

7.89

%

6.78

%

Return Before Taxes

 

 

 

 

 

 

 

 

Class A

2/3/2009

 

2.30

%

8.51

%

7.75

%

Investor Class

11/16/2009

 

2.62

%

8.26

%

7.53

%

Class B

5/8/2017

 

2.16

%

8.37

%

6.83

%

Class C

11/16/2009

 

6.16

%

8.66

%

7.33

%

Class R6

5/8/2017

 

8.62

%

10.12

%

8.26

%

SIMPLE Class

8/31/2020

 

7.92

%

N/A

 

10.26

%

 

 

 

 

 

 

 

 

 

Russell 3000® Index1

25.96

%

15.16

%

11.48

%

Russell 1000® Value Index2

11.46

%

10.91

%

8.40

%

U.S. Equity Yield Composite Index3

7.18

%

8.88

%

8.92

%

1. The Russell 3000® Index measures the performance of the largest 3,000 U.S. companies representing approximately 98% of the investable U.S. equity market.

2.  The Russell 1000® Value Index measures the performance of the large-cap value segment of the U.S. equity universe. It includes those Russell 1000® Index companies with lower price-to-book ratios and lower expected growth values.

3.  The U.S. Equity Yield Composite Index consists of the MSCI USA High Dividend Yield Index and the MSCI USA Minimum Volatility (USD) Index weighted at 60% and 40%, respectively. The MSCI USA High Dividend Yield Index is based on the MSCI USA Index and includes large- and mid-cap stocks. It is designed to reflect the performance of equities in the MSCI USA Index (excluding real estate investment trusts) with higher dividend income and quality characteristics than average dividend yields that are both sustainable and persistent. The MSCI USA Minimum Volatility (USD) Index aims to reflect the performance characteristics of a minimum variance strategy applied to the large- and mid-cap U.S. equity universe. It is calculated by optimizing the MSCI USA Index in U.S. dollars for the lowest absolute risk (within a given set of constraints).

8


MainStay Epoch U.S. Equity Yield Fund

After-tax returns are calculated using the highest individual federal marginal income tax rates in effect at the time of each distribution or capital gain or upon the sale of Fund shares, and do not reflect the impact of state and local taxes. In some cases, the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of shares at the end of the measurement period. Actual after-tax returns depend on your tax situation and may differ from those shown. After-tax returns are not relevant if you hold your shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. After-tax returns shown are for Class I shares. After-tax returns for the other share classes may vary.

Management

New York Life Investment Management LLC serves as the Manager. Epoch Investment Partners, Inc. serves as the Subadvisor. The individuals listed below are jointly and primarily responsible for day-to-day portfolio management.

     

Subadvisor

Portfolio Managers

Service Date

Epoch Investment Partners, Inc.

Michael A. Welhoelter, President and Co-Chief Investment Officer

Since 2009

 

William W. Priest, Executive Chairman & Co-Chief Investment Officer*

Since 2009

 

John Tobin, Managing Director

Since 2013

 

Kera Van Valen, Managing Director

Since 2013

* Mr. Priest will serve as portfolio manager of the Fund until on or about March 31, 2024.

How to Purchase and Sell Shares

You may purchase or sell shares of the Fund on any day the Fund is open for business by contacting your financial adviser or financial intermediary firm, or by contacting the Fund by telephone at 800-624-6782, by mail at MainStay Funds, P.O. Box 219003, Kansas City, MO 64121-9000, by overnight mail to 430 West 7th Street, Suite 219003, Kansas City, MO 64105-1407, or by accessing our website at newyorklifeinvestments.com/accounts. Class R6 shares are generally only available to certain retirement plans invested in the Fund through omnibus accounts (either at the plan level or omnibus accounts held on the books of the Fund). SIMPLE Class shares are generally only available to SIMPLE IRA Plan accounts. Class R6 and SIMPLE Class shares are generally not available to retail accounts. Generally, an initial investment minimum of $2,500 applies if you invest in Investor Class or Class C shares, $1,000 for SIMPLE Class shares, $15,000 for Class A shares and $1,000,000 for individual investors in Class I shares investing directly (i) with the Fund or (ii) through certain private banks and trust companies that have an agreement with NYLIFE Distributors LLC, the Fund’s principal underwriter and distributor, or its affiliates. A subsequent investment minimum of $50 applies to investments in Investor Class and Class C shares. These initial investment minimum and subsequent purchase amounts also apply to Investor Class and Class C shares purchased through AutoInvest, MainStay's systematic investment plan. Class A and SIMPLE Class shares have no subsequent investment minimum. Class R6 shares and institutional shareholders in Class I shares have no initial or subsequent investment minimums. Class B shares are closed to all new purchases and additional investments by existing Class B shareholders.

Certain financial intermediaries through whom you may invest may impose their own investment minimums, fees, policies and procedures for purchasing and selling Fund shares, which are not described in this Prospectus or the Statement of Additional Information, and which will depend on the policies, procedures and trading platforms of the financial intermediary. Consult a representative of your financial intermediary about the availability of shares of the Fund and the intermediary's policies, procedures and other information.

Tax Information

The Fund's distributions are generally taxable to you as ordinary income, capital gains, or a combination of the two, unless you are investing through a tax-deferred arrangement, such as a 401(k) plan or an individual retirement account.

Compensation to Financial Intermediary Firms

If you purchase Fund shares through a financial intermediary firm (such as a broker/dealer or bank), the Fund and its related companies may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the financial intermediary firm or your financial adviser to recommend the Fund over another investment. Ask your financial adviser or visit your financial intermediary firm's website for more information. No compensation, administrative payments, sub-transfer agency payments or service payments are paid to broker/dealers or other financial intermediaries from Fund assets or the Distributor’s or an affiliate’s resources on sales of or investments in Class R6 shares. The Distributor or an affiliate may pay de minimis amounts to intermediaries for setup, connectivity or other technological expenses. Class R6 shares do not carry sales charges or pay Rule 12b-1 fees, or make payments to financial intermediaries to assist in, or in connection with, the sale of the Fund’s shares.

9


MainStay Fiera SMID Growth Fund

Investment Objective

The Fund seeks long term capital growth.

Fees and Expenses of the Fund

The table below describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund. In addition, different financial intermediary firms and financial professionals may impose different sales loads and waivers. More information about these and other discounts or waivers is available from your financial professional, in the "Information on Sales Charges" section starting on page 139 of the Prospectus and Appendix A – Intermediary-Specific Sales Charge Waivers and Discounts, and in the "Alternative Sales Arrangements" section on page 147 of the Statement of Additional Information.

                                     

 

 

Class A

 

Class C

 

Class I

 

Class R6 

 

Shareholder Fees (fees paid directly from your investment)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

 

5.50

%

 

None

 

 

 

None

 

 

 

None

 

 

 

 

Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)

 

None

1 

 

 

1.00

%

 

None

 

 

 

None

 

 

 

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Management Fees (as an annual percentage of the Fund's average daily net assets)

 

0.75

%

 

0.75

%

 

0.75

%

 

0.75

%

 

 

Distribution and/or Service (12b-1) Fees

 

0.25

%

 

1.00

%

 

None

 

 

 

None

 

 

 

 

Other Expenses2

 

0.20

%

 

0.33

%

 

0.20

%

 

0.08

%

 

 

Total Annual Fund Operating Expenses

 

1.20

%

 

2.08

%

 

0.95

%

 

0.83

%

 

 

Waivers / Reimbursements3

 

(0.05

)%

 

(0.03

)%

 

(0.10

)%

 

0.00

%

 

 

Total Annual Fund Operating Expenses After Waivers / Reimbursements3

 

1.15

%

 

2.05

%

 

0.85

%

 

0.83

%

 

1.  No initial sales charge applies on investments of $1 million or more (and certain other qualified purchases). However, a contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within 18 months of the date of purchase on shares that were purchased without an initial sales charge.

2. Restated to reflect the expenses expected to be incurred during the current fiscal year.

3. New York Life Investments has contractually agreed to waive fees and/or reimburse expenses so that Total Annual Fund Operating Expenses (excluding taxes, interest, litigation, extraordinary expenses, brokerage and other transaction expenses relating to the purchase or sale of portfolio investments, and acquired (underlying) fund fees and expenses) for a class do not exceed the following percentage of its average daily net assets: Class A, 1.15%; Class C, 2.05%; Class I, 0.85%; and Class R6, 0.84%. This agreement will remain in effect until February 28, 2026, and thereafter shall renew automatically for one-year terms unless New York Life Investments provides written notice of termination prior to the start of the next term or upon approval of the Board of Trustees of the Fund.

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 whether or not you redeem all of your shares at the end of those periods (except as indicated with respect to Class C shares). The Example reflects Class C shares converting into Class A shares in years 9-10. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects the contractual fee waiver and/or expense reimbursement arrangement, if applicable, for the current duration of the arrangement only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

                             

   Expenses After

 

Class A

 

 

Class C

 

Class I

 

Class R6

 

 

 

 

 

 

Assuming no redemption

 

 

Assuming redemption at end of period

 

 

 

 

 

   1 Year

 

$      661

 

 

$        208

 

 

$      308

 

 

$        87

 

$        85

 

   3 Years

 

$      900

 

 

$        646

 

 

$      646

 

 

$      282

 

$      265

 

   5 Years

 

$   1,164

 

 

$        1,113

 

 

$   1,113

 

 

$      505

 

$      460

 

   10 Years

 

$   1,916

 

 

$        2,180

 

 

$   2,180

 

 

$   1,148

 

$   1,025

 

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 period, the Fund's portfolio turnover rate was 24% of the average value of its portfolio.

Principal Investment Strategies

Fiera Capital Inc. (the “Subadvisor”) seeks to achieve the Fund’s investment objective by investing in a diversified portfolio of common stocks of companies believed to be small- and mid-cap growth-oriented companies that are selected for their long-term capital appreciation potential and which the Subadvisor expects to grow faster than the U.S. economy.

10


MainStay Fiera SMID Growth Fund

The Fund considers an issuer to be a small- or mid-capitalization issuer if it has a market capitalization, at the time of purchase, within the range of Russell 2500TM Growth Index (which as of December 31, 2023 ranged from $25 million to $22.2 billion) or the Russell Midcap® Growth Index (which as of December 31, 2023 ranged from $978 million to $73.3 billion). These ranges are subject to change over time due to changes in market and/or economic conditions. The Fund may also invest in exchange-traded funds (“ETFs”).

The Fund may also invest in companies that are in the earlier stages of their growth cycle that the Subadvisor recognizes as “emerging growth” companies. The Subadvisor believes that emerging growth companies can typically exhibit more aggressive growth characteristics and may be experiencing a significant positive transformation or a favorable catalyst impacting their long-term earnings potential. Characteristics the Subadvisor considers in identifying emerging growth companies for the Fund include accelerating revenue growth, strong relative strength, company specific market advantage, or an introduction of a new product line with a large addressable marketplace.

Under normal circumstances, the Fund will invest at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in common stocks of small- and mid-cap companies. The Fund may invest up to 15% of its assets in common stocks of foreign small- and mid-cap companies through the purchase of sponsored American Depositary Receipts (“ADRs”), sponsored Global Depositary Receipts and/or foreign companies listed on U.S. stock exchanges.

An issuer is considered to be U.S. or foreign based on the issuer’s “country of risk” (or similar designation) as determined by a third party such as Bloomberg.

The Fund may from time to time emphasize one or more sectors as defined by GICs classification in selecting its investments, including the information technology, health care and consumer staples sectors.

Investment Process:

In selecting investments for the Fund, the Subadvisor uses an approach that combines “top-down” secular/macro-economic trend analysis with “bottom-up” security selection. The “top-down” approach takes into consideration factors such as interest rates, inflation, fiscal and monetary policy, global demographic trends, the regulatory environment and other attractive global investment opportunities. In addition, the Subadvisor may make investments in companies that seek to benefit from secular growth trends.

Through this “top-down” view, the Subadvisor seeks to provide a framework for “bottom-up” research by identifying sectors, industries and companies that may benefit from the sustainability of the observed trends.

The Subadvisor then looks to fundamental “bottom-up” research for individual companies that it believes are exhibiting earnings growth potential at different stages of a company’s growth cycle and may benefit from the observed secular/macro trends. The core investments of the Fund typically include more established companies that the Subadvisor recognizes as “stable growth” companies, but the Fund may also invest in “emerging growth” companies. The Subadvisor believes that stable growth companies can typically provide more stability and consistency in volatile markets and are identified as exhibiting potential earnings acceleration, consistency of earnings, solid fundamentals (e.g., a strong balance sheet and the ability to generate free cash flow), franchise durability and reasonable valuations in the context of projected growth rates.

The Fund may sell securities and other investments when the Subadvisor believes that they have achieved full valuation, the Subadvisor identifies a more attractive investment, the Fund needs to maintain portfolio diversification, or an individual stock experiences declining fundamentals, negative earnings reports or similar adverse events or other relevant factors. In general, once the market capitalization of an investment exceeds the market capitalization ranges stated above, the Subadvisor expects to gradually liquidate the position.

Principal Risks

You can lose money by investing in 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 governmental agency. The investments selected by the Subadvisor may underperform the market in which the Fund invests or other investments. The Fund may receive large purchase or redemption orders which may have adverse effects on performance if the Fund were required to sell securities, invest cash or hold a relatively large amount of cash at times when it would not otherwise do so.

The principal risks of investing in the Fund are summarized below.

Market Risk: Changes in markets may cause the value of investments to fluctuate, which could cause the Fund to underperform other funds with similar investment objectives and strategies. Such changes may be rapid and unpredictable. From time to time, markets may experience periods of stress as a result of various market, economic and geopolitical factors for potentially prolonged periods that may result in: (i) increased market volatility; (ii) reduced market liquidity; and (iii) increased redemptions of shares. Such conditions may add significantly to the risk of volatility in the net asset value of the Fund's shares and adversely affect the Fund and its investments.

Portfolio Management Risk: The investment strategies, practices and risk analyses used by the Subadvisor may not produce the desired results or expected returns.

Equity Securities Risk: Investments in common stocks and other equity securities are particularly subject to the risk of changing economic, stock market, industry and company conditions and the risks inherent in the ability to anticipate such changes that can adversely affect the value of portfolio holdings.

11


MainStay Fiera SMID Growth Fund

Market Capitalization Risk: Investments in securities issued by small- or mid-cap companies, will be subject to the risks associated with securities issued by companies of the applicable market capitalization.  Securities of small-cap and mid-cap companies may be subject to greater price volatility, significantly lower trading volumes, cyclical, static or moderate growth prospects and greater spreads between their bid and ask prices than securities of larger companies. Smaller capitalization companies frequently rely on narrower product lines and niche markets and may be more vulnerable to adverse business or market developments. There is a risk that the securities issued by companies of a certain market capitalization may underperform the broader market at any given time.

Growth Stock Risk: If growth companies do not increase their earnings at a rate expected by investors, the market price of the stock may decline significantly, even if earnings show an absolute increase. Growth company stocks also typically lack the dividend yield that can cushion stock prices in market downturns. These risks may be more pronounced in companies that are in the earlier stages of their growth cycle.

Issuer Risk: An issuer in which the Fund invests or to which it has exposure may perform poorly, and the value of its securities may therefore decline, which would negatively affect the Fund’s performance. Poor performance may be caused by poor management decisions, competitive pressures, breakthroughs in technology, reliance on suppliers, labor problems or shortages, corporate restructurings, fraudulent disclosures, natural disasters, military confrontations and actions, war, other conflicts, terrorism, disease/virus outbreaks, epidemics or other events, conditions or factors.

Foreign Securities Risk: An issuer of a security is considered to be a U.S. or foreign issuer based on the issuer’s “country of risk” (or similar designation) as determined by a third party such as Bloomberg (or another similar third party). The issuer’s “country of risk” is determined based on a number of criteria, which may change from time to time and currently include, but are not limited to, its country of domicile, the primary stock exchange on which it trades, the location from which the majority of its revenue comes, and its reporting currency. Although a Fund will generally rely on an issuer’s “country of risk” (or similar designation) as determined by Bloomberg (or another similar third party) when categorizing securities as either U.S. or foreign-based, it is not required to do so.

Investments in foreign (non-U.S.) securities may be riskier than investments in U.S. securities. Foreign regulatory regimes and securities markets can have less stringent investor protections and disclosure standards and less liquid trading markets than U.S. regulatory regimes and securities markets, and can experience political, social and economic developments that may affect the value of investments in foreign securities. Foreign securities may also subject the Fund's investments to changes in currency rates. Changes in the value of foreign currencies may make the return on an investment increase or decrease, unrelated to the quality or performance of the investment itself. Economic sanctions may be, and have been, imposed against certain countries, organizations, companies, entities and/or individuals. Economic sanctions and other similar governmental actions or developments could, among other things, effectively restrict or eliminate the Fund’s ability to purchase or sell certain foreign securities or groups of foreign securities, and thus may make the Fund’s investments in such securities less liquid or more difficult to value. Such sanctions may also cause a decline in the value of securities issued by the sanctioned country or companies located in or economically tied to the sanctioned country. In addition, as a result of economic sanctions and other similar governmental actions or developments, the Fund may be forced to sell or otherwise dispose of foreign investments at inopportune times or prices. The Fund may seek to hedge against its exposure to changes in the value of foreign currency, but there is no guarantee that such hedging techniques will be successful in reducing any related foreign currency valuation risk.

Depositary Receipts Risk: Investments in depositary receipts may entail the special risks of investing in foreign securities, including currency exchange fluctuations, government regulations, and the potential for political and economic instability.

Exchange-Traded Fund Risk: The risks of owning an ETF generally reflect the risks of owning the underlying securities in which the ETF invests or is designed to track, although lack of liquidity in an ETF’s shares could result in the market price of the ETF’s shares being more volatile than its underlying portfolio securities. Disruptions in the markets for the securities underlying ETFs could result in losses on the investments in ETFs. ETFs also have management fees and transaction costs that may make them more expensive than owning the underlying securities directly.

Sector Risk: To the extent the Fund focuses its investments in particular sectors of the economy, the Fund’s performance may be more subject to the risks of volatile economic cycles and/or conditions or developments adversely affecting such sectors than if the Fund held a broader range of investments. Individual sectors may fluctuate more widely than the broader market.

At times, the Fund may have a significant portion of its assets invested in securities of companies conducting business in a related group of industries within an economic sector, including information technology, health care and consumer staples sectors. Companies in the same economic sector may be similarly affected by economic, regulatory, political or market events or conditions, which may make the Fund more vulnerable to unfavorable developments in that economic sector than funds that invest more broadly. Generally, the more broadly the Fund invests, the more it spreads risk and potentially reduces the risks of loss and volatility.

The Fund may be more susceptible to the particular risks that may affect companies in the information technology sector, as well as other technology-related sectors (collectively, the technology sectors) than if it were invested in a wider variety of companies in unrelated sectors. Companies in the technology sectors are subject to certain risks, including the risk that new services, equipment or technologies will not be accepted by consumers and businesses or will become rapidly obsolete. Performance of such companies may be affected by factors including obtaining and protecting patents (or the failure to do so) and significant competitive pressures, including aggressive pricing of their products or services, new market entrants, competition for market share and short product cycles due to an accelerated rate of technological developments.

12


MainStay Fiera SMID Growth Fund

Such competitive pressures may lead to limited earnings and/or falling profit margins. As a result, the value of their securities may fall or fail to rise. In addition, many technology sector companies have limited operating histories and prices of these companies’ securities historically have been more volatile than other securities, especially over the short term.

The Fund may also be more susceptible to the particular risks that may affect companies in the consumer staples sector than if it were invested in a wider variety of companies in unrelated sectors. Investments in the consumer staples sector involve risks associated with companies that manufacture products and provide staples services directly to the consumer. Performance of companies in the consumer staples sector may be adversely impacted by fluctuations in supply and demand, changes in the global economy, consumer spending, competition, demographics and consumer preferences, and production spending. Companies in the consumer staples sector are also affected by changes in government regulation, global economic, environmental and political events, and economic conditions.

Past Performance

The following bar chart and table provide some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual returns compare with those of a broad measure of market performance, as well as an additional index over time. Sales loads, if any, are not reflected in the bar chart. If they were, returns would be less than those shown. In accordance with new regulatory requirements, the Fund has selected the Russell 3000® Index, which represents a broad measure of market performance, as a replacement for the Russell 2500™ Growth Index. The table also includes the average annual returns of the Russell 2500™ Growth Index, which is generally representative of the market sectors or types of investments in which the Fund invests.

Index returns reflect no deductions for fees, expenses or taxes, except for foreign withholding taxes where applicable.

Performance data for the classes varies based on differences in their fee and expense structures. Performance data is not shown for classes with less than one calendar year of performance. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Please visit newyorklifeinvestments.com/funds for more recent performance information.

Effective July 21, 2023, the Fiera Capital Small/Mid-Cap Growth Fund (the "Predecessor Fund") was reorganized into the Fund. As accounting successor to the Predecessor Fund, the Fund has assumed the Predecessor Fund's historical performance. Therefore, the performance information shown below prior to July 21, 2023 is that of the Predecessor Fund, which had a different fee structure from the Fund. The returns of the Predecessor Fund have not been adjusted to reflect the applicable expenses other than sales loads (if applicable) of the Fund. The historical performance presented prior to February 12, 2018 reflects the performance of APEXcm Small/Mid-Cap Growth Fund, a former series of The Ultimus Managers Trust (the "Prior Predecessor Fund"). The returns of the Prior Predecessor Fund have not been adjusted to reflect the applicable expenses other than sales loads (if applicable) of the Predecessor Fund or the Fund. The returns prior to February 12, 2018 are based on the previous performance and actual fees and expenses of the Prior Predecessor Fund's sole class of shares (i.e., the Predecessor Fund's Institutional Class shares, which commenced operations on June 29, 2012). The Predecessor Fund's Investor Class shares commenced operations on February 12, 2018.

13


MainStay Fiera SMID Growth Fund

Annual Returns, Class I shares

(by calendar year 2014-2023)

PerformanceBarChartData(2014:7.04,2015:-2.46,2016:2.97,2017:26.6,2018:-9.56,2019:31.15,2020:44.48,2021:16.96,2022:-23.56,2023:25.16)

     

Best Quarter

 

2020, Q2

33.72

%

Worst Quarter

 

2020, Q1

-23.24

%

Average Annual Total Returns (for the periods ended December 31, 2023)

                 

 

 

 

 

 

10 Years or

 

Inception

 

       1 Year

5 Years

Since

 

 

 

 

 

Inception

Return Before Taxes

 

 

 

 

 

 

 

 

Class I

6/29/2012

 

25.16

%

16.22

%

10.07

%

Return After Taxes on Distributions

 

 

 

 

 

 

 

 

Class I

 

 

24.39

%

13.04

%

7.92

%

Return After Taxes on Distributions and Sale of Fund Shares

 

 

 

 

 

 

 

 

Class I

 

 

15.39

%

12.62

%

7.78

%

Return Before Taxes

 

 

 

 

 

 

 

 

Class A

2/12/2018

 

24.75

%

15.92

%

11.31

%

 

 

 

 

 

 

 

 

 

Russell 3000® Index1

25.96

%

15.16

%

11.48

%

Russell 2500TM Growth Index2

18.93

%

11.43

%

8.78

%

1. The Russell 3000® Index measures the performance of the largest 3,000 U.S. companies representing approximately 98% of the investable U.S. equity market.

2.  The Russell 2500™ Growth Index measures the performance of the small- to mid-cap growth segment of the U.S. equity universe. It includes those Russell 2500 companies with higher price-to-book ratios and higher forecasted growth values.

Management

New York Life Investment Management LLC serves as the Manager. Fiera Capital, Inc. serves as the Subadvisor. The individuals listed below are primarily responsible for day-to-day portfolio management.

     

Subadvisor

Portfolio Managers

Service Date

Fiera Capital, Inc.

Sunil M. Reddy - Lead Portfolio Manager

Since 2023

 

David Cook - Portfolio Manager

Since 2023

14


MainStay Fiera SMID Growth Fund

How to Purchase and Sell Shares

You may purchase or sell shares of the Fund on any day the Fund is open for business by contacting your financial adviser or financial intermediary firm, or by contacting the Fund by telephone at 800-624-6782, by mail at MainStay Funds, P.O. Box 219003, Kansas City, MO 64121-9000, by overnight mail to 430 West 7th Street, Suite 219003, Kansas City, MO 64105-1407, or by accessing our website at newyorklifeinvestments.com/accounts.

Class R6 shares are generally only available to certain retirement plans invested in the Fund through omnibus accounts (either at the plan level or omnibus accounts held on the books of the Fund). Class R6 shares are generally not available to retail accounts. Generally, an initial investment minimum of $1,000 applies if you invest in Class C shares, $15,000 for Class A shares and $1,000,000 for individual investors in Class I shares investing directly (i) with the Fund or (ii) through certain private banks and trust companies that have an agreement with NYLIFE Distributors LLC, the Fund’s principal underwriter and distributor, or its affiliates. A subsequent investment minimum of $50 applies to investments in Class C shares. However, for Class C shares purchased through AutoInvest, MainStay’s systematic investment plan, a $500 initial investment minimum and a $50 minimum for subsequent purchases applies. Class A shares have no subsequent investment minimum. Class R6 shares and institutional shareholders in Class I shares have no initial or subsequent investment minimums.

Certain financial intermediaries through whom you may invest may impose their own investment minimums, fees, policies and procedures for purchasing and selling Fund shares, which are not described in this Prospectus or the Statement of Additional Information, and which will depend on the policies, procedures and trading platforms of the financial intermediary. Consult a representative of your financial intermediary about the availability of shares of the Fund and the intermediary's policies, procedures and other information.

Tax Information

The Fund's distributions are generally taxable to you as ordinary income, capital gains, or a combination of the two, unless you are investing through a tax-deferred arrangement, such as a 401(k) plan or an individual retirement account.

Compensation to Financial Intermediary Firms

If you purchase Fund shares through a financial intermediary firm (such as a broker/dealer or bank), the Fund and its related companies may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the financial intermediary firm or your financial adviser to recommend the Fund over another investment. Ask your financial adviser or visit your financial intermediary firm's website for more information. No compensation, administrative payments, sub-transfer agency payments or service payments are paid to broker/dealers or other financial intermediaries from Fund assets or the Distributor’s or an affiliate’s resources on sales of or investments in Class R6 shares. The Distributor or an affiliate may pay de minimis amounts to intermediaries for setup, connectivity or other technological expenses. Class R6 shares do not carry sales charges or pay Rule 12b-1 fees, or make payments to financial intermediaries to assist in, or in connection with, the sale of the Fund’s shares.

15


MainStay PineStone U.S. Equity Fund

Investment Objective

The Fund seeks long-term capital appreciation.

Fees and Expenses of the Fund

The table below describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund. In addition, different financial intermediary firms and financial professionals may impose different sales loads and waivers. More information about these and other discounts or waivers is available from your financial professional, in the "Information on Sales Charges" section starting on page 139 of the Prospectus and Appendix A – Intermediary-Specific Sales Charge Waivers and Discounts, and in the "Alternative Sales Arrangements" section on page 147 of the Statement of Additional Information.

                                     

 

 

Class A

 

Class C

 

Class I

 

Class R6 

 

Shareholder Fees (fees paid directly from your investment)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

 

5.00

%

 

None

 

 

 

None

 

 

 

None

 

 

 

 

Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)

 

None

1 

 

 

1.00

%

 

None

 

 

 

None

 

 

 

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Management Fees (as an annual percentage of the Fund's average daily net assets)

 

0.55

%

 

0.55

%

 

0.55

%

 

0.55

%

 

 

Distribution and/or Service (12b-1) Fees

 

0.25

%

 

1.00

%

 

None

 

 

 

None

 

 

 

 

Other Expenses2

 

0.15

%

 

0.32

%

 

0.15

%

 

0.07

%

 

 

Total Annual Fund Operating Expenses

 

0.95

%

 

1.87

%

 

0.70

%

 

0.62

%

 

1.  No initial sales charge applies on investments of $1 million or more (and certain other qualified purchases). However, a contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within 18 months of the date of purchase on shares that were purchased without an initial sales charge.

2. Restated to reflect the expenses expected to be incurred during the current fiscal year.

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 whether or not you redeem all of your shares at the end of those periods (except as indicated with respect to Class C shares). The Example reflects Class C shares converting into Class A shares in years 9-10. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects the contractual fee waiver and/or expense reimbursement arrangement, if applicable, for the current duration of the arrangement only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

                             

   Expenses After

 

Class A

 

 

Class C

 

Class I

 

Class R6

 

 

 

 

 

 

Assuming no redemption

 

 

Assuming redemption at end of period

 

 

 

 

 

   1 Year

 

$      642

 

 

$        190

 

 

$      290

 

 

$        72

 

$        63

 

   3 Years

 

$      836

 

 

$        588

 

 

$      588

 

 

$      224

 

$      199

 

   5 Years

 

$   1,047

 

 

$        1,011

 

 

$   1,011

 

 

$      390

 

$      346

 

   10 Years

 

$   1,652

 

 

$        1,950

 

 

$   1,950

 

 

$      871

 

$      774

 

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 costsand 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 period, the Fund's portfolio turnover rate was 2% of the average value of its portfolio.

Principal Investment Strategies

PineStone Asset Management Inc., the Fund’s subadvisor (the “Subadvisor”), seeks to achieve the Fund’s investment objective by investing substantially in a portfolio of U.S. equities. The Fund generally expects to focus on issuers with market capitalizations in excess of $1 billion.

The Subadvisor seeks to invest in what it believes are quality companies, i.e., companies that the Subadvisor considers to have, among other things, an ability to generate an elevated level of return on invested capital significantly above the cost of capital.

Under normal circumstances, the Fund invests at least 80% of its assets (net assets plus any borrowings for investment purposes) in equity securities of U.S. companies. An issuer of a security is considered to be a U.S. or foreign issuer based on the issuer’s “country of risk” (or similar designation) as determined by a third party such as Bloomberg, Factset or ICE Data Services Inc.

16


MainStay PineStone U.S. Equity Fund

Equity securities include common stock, preferred stock, convertible securities and depositary receipts.

Investment Process:

In pursuing the Fund’s investment objective, the Subadvisor employs a bottom-up stock selection approach which results in a portfolio generally ranging from 20 to 45 companies. A bottom-up stock selection approach focuses on the analysis of individual stocks (microeconomic factors) as opposed to the significance of economic cycles and market cycles (macroeconomic factors).

The Subadvisor looks for quality companies that have growth potential that are believed to be trading at attractive valuations. In doing so, the Subadvisor focuses on companies believed by the portfolio management team to have the following characteristics, among others:

· Competitive advantage in an industry with high barriers to entry;

· Attractive industry with pricing power, organic growth and limited cyclicality;

· Strong management teams with sound corporate governance;

· History of stable profit margins;

· Solid balance sheet with low leverage; and

· Attractive valuation with a stock price below intrinsic value.

The portfolio management team expects to take a longer-term investment perspective, generally seeking to hold investments in companies for at least 5 years. In evaluating whether to sell a security, the Subadvisor considers, among other factors, whether in its view the company no longer continues to meet the standards described above and/or the Subadvisor believes there are more attractive opportunities available for investment by the Fund.

The Fund is non-diversified, which means that it may invest a greater amount of its assets in the securities of a single issuer or a small number of issuers than a diversified fund.

Principal Risks

You can lose money by investing in 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 governmental agency. The investments selected by the Subadvisor may underperform the market in which the Fund invests or other investments. The Fund may receive large purchase or redemption orders which may have adverse effects on performance if the Fund were required to sell securities, invest cash or hold a relatively large amount of cash at times when it would not otherwise do so.

The principal risks of investing in the Fund are summarized below.

An issuer of a security is considered to be a U.S. or foreign issuer based on the issuer’s “country of risk” (or similar designation) as determined by a third party such as Bloomberg, Factset or ICE Data Services, Inc. The issuer’s “country of risk” is determined based on a number of criteria, which may change from time to time and currently include, but are not limited to, its country of domicile, the primary stock exchange on which it trades, the location from which the majority of its revenue comes, and its reporting currency. Although the Fund will generally rely on an issuer’s “country of risk,” (or similar designation) as determined by Bloomberg, Factset or ICE Data Services, Inc when categorizing securities as either U.S. or foreign-based, it is not required to do so.

Market Risk: Changes in markets may cause the value of investments to fluctuate, which could cause the Fund to underperform other funds with similar investment objectives and strategies. Such changes may be rapid and unpredictable. From time to time, markets may experience periods of stress as a result of various market, economic and geopolitical factors for potentially prolonged periods that may result in: (i) increased market volatility; (ii) reduced market liquidity; and (iii) increased redemptions of shares. Such conditions may add significantly to the risk of volatility in the net asset value of the Fund's shares and adversely affect the Fund and its investments.

Portfolio Management Risk: The investment strategies, practices and risk analyses used by the Subadvisor may not produce the desired results or expected returns.

Equity Securities Risk: Investments in common stocks and other equity securities are particularly subject to the risk of changing economic, stock market, industry and company conditions and the risks inherent in the ability to anticipate such changes that can adversely affect the value of portfolio holdings.

Market Capitalization Risk: Investments in securities issued by small-, mid-, or large-cap companies will be subject to the risks associated with securities issued by companies of the applicable market capitalization.  Securities of small-cap and mid-cap companies may be subject to greater price volatility, significantly lower trading volumes, cyclical, static or moderate growth prospects and greater spreads between their bid and ask prices than securities of larger companies. Smaller capitalization companies frequently rely on narrower product lines and niche markets and may be more vulnerable to adverse business or market developments.  Securities issued by larger companies may have less growth potential and may not be able to attain the high growth rates of successful smaller companies, especially during strong economic periods.  In addition, larger

17


MainStay PineStone U.S. Equity Fund

companies may be less capable of responding quickly to competitive challenges and industry changes, including those resulting from improvements in technology, and may suffer sharper price declines as a result of earnings disappointments.  There is a risk that the securities issued by companies of a certain market capitalization may underperform the broader market at any given time.

Issuer Risk: An issuer in which the Fund invests or to which it has exposure may perform poorly, and the value of its securities may therefore decline, which would negatively affect the Fund’s performance. Poor performance may be caused by poor management decisions, competitive pressures, breakthroughs in technology, reliance on suppliers, labor problems or shortages, corporate restructurings, fraudulent disclosures, natural disasters, military confrontations and actions, war, other conflicts, terrorism, disease/virus outbreaks, epidemics or other events, conditions or factors.

Non-Diversification Risk: The Fund is a non-diversified, open-end management investment company under the Investment Company Act of 1940, as amended. A non-diversified fund may have a significant portion of its investments in a smaller number of issuers than a diversified fund. Having a larger percentage of assets in a smaller number of issuers makes a non-diversified fund, like the Fund, more susceptible to the risk that one single event or occurrence can have a significant adverse impact upon the Fund.

Sector Risk: To the extent the Fund focuses its investments in particular sectors of the economy, the Fund’s performance may be more subject to the risks of volatile economic cycles and/or conditions or developments adversely affecting such sectors than if the Fund held a broader range of investments. Individual sectors may fluctuate more widely than the broader market.

At times, the Fund may have a significant portion of its assets invested in securities of companies conducting business in a related group of industries within an economic sector, including the consumer staples sector. Companies in the same economic sector may be similarly affected by economic, regulatory, political or market events or conditions, which may make the Fund more vulnerable to unfavorable developments in that economic sector than funds that invest more broadly. Generally, the more broadly the Fund invests, the more it spreads risk and potentially reduces the risks of loss and volatility.

The Fund may also be more susceptible to the particular risks that may affect companies in the consumer staples sector than if it were invested in a wider variety of companies in unrelated sectors. Investments in the consumer staples sector involve risks associated with companies that manufacture products and provide staples services directly to the consumer. Performance of companies in the consumer staples sector may be adversely impacted by fluctuations in supply and demand, changes in the global economy, consumer spending, competition, demographics and consumer preferences, and production spending. Companies in the consumer staples sector are also affected by changes in government regulation, global economic, environmental and political events, and economic conditions.

Depositary Receipts Risk: Investments in depositary receipts may entail the special risks of investing in foreign securities, including currency exchange fluctuations, government regulations, and the potential for political and economic instability.

Preferred Stock Risk: Preferred stock is subject to many of the risks associated with debt securities, including interest rate risk. In addition, preferred stocks may not pay dividends, an issuer may suspend payment of dividends on preferred stock at any time, and in certain situations an issuer may call or redeem its preferred stock or convert it to common stock. To the extent that the Fund invests a substantial portion of its assets in convertible preferred stocks, declining common stock values may also cause the value of the Fund’s investments to decline.

Convertible Securities Risk: Convertible securities are typically subordinate to an issuer’s other debt obligations. In part, the total return for a convertible security depends upon the performance of the underlying stock into which it can be converted. Also, issuers of convertible securities are often not as strong financially as those issuing securities with higher credit ratings, are more likely to encounter financial difficulties and typically are more vulnerable to changes in the economy, such as a recession or a sustained period of rising interest rates, which could affect their ability to make interest and principal payments. If an issuer stops making interest and/or principal payments, the Fund could lose its entire investment.

Past Performance

The following bar chart and table provide some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual returns compare with those of a broad measure of market performance, as well as an additional index over time. Sales loads, if any, are not reflected in the bar chart. If they were, returns would be less than those shown. In accordance with new regulatory requirements, the Fund has selected the Russell 3000® Index, which represents a broad measure of market performance, as a replacement for the S&P 500® Index. The table also includes the average annual returns of the S&P 500® Index, which is generally representative of the market sectors or types of investments in which the Fund invests.

Index returns reflect no deductions for fees, expenses or taxes, except for foreign withholding taxes where applicable.

Performance data for the classes varies based on differences in their fee and expense structures. Performance data is not shown for classes with less than one calendar year of performance. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Please visit newyorklifeinvestments.com/funds for more recent performance information.

Effective August 25, 2023, the Fiera Capital U.S. Equity Long-Term Quality Fund (the "Predecessor Fund") was reorganized into the Fund. As accounting successor to the Predecessor Fund, the Fund has assumed the Predecessor Fund's historical performance. Therefore, the performance

18


MainStay PineStone U.S. Equity Fund

information shown below is that of the Predecessor Fund, which had a different fee structure from the Fund. The returns of the Predecessor Fund have not been adjusted to reflect the applicable expenses of the Fund.

Annual Returns, Class I Shares

(by the calendar year 2020-2023)

PerformanceBarChartData(2020:23.41,2021:33.27,2022:-15.52,2023:21.83)

     

Best Quarter

 

2020, Q2

19.83

%

Worst Quarter

 

2020, Q1

-15.17

%

Average Annual Total Returns (for the periods ended December 31, 2023)

             

 

 

 

 

 

 

Inception

 

         1 Year

Since

 

 

 

 

Inception

Return Before Taxes

 

 

 

 

 

 

Class I

9/30/2019

 

21.83

%

15.67

%

Return After Taxes on Distributions

 

 

 

 

 

 

Class I

 

 

21.73

%

15.23

%

Return After Taxes on Distributions and Sale of Fund Shares

 

 

 

 

 

 

Class I

 

 

12.99

%

12.48

%

Return Before Taxes

 

 

 

 

 

 

Class A

9/30/2019

 

21.58

%

15.40

%

 

 

 

 

 

 

 

Russell 3000® Index1

25.96

%

13.09

%

S&P 500® Index2

26.29

%

13.59

%

1. The Russell 3000® Index measures the performance of the largest 3,000 U.S. companies representing approximately 98% of the investable U.S. equity market.

2.  The S&P 500® Index is widely regarded as the standard index for measuring large-cap U.S. stock market performance.

Management

New York Life Investment Management LLC serves as the Manager. PineStone Asset Management Inc. serves as the Subadvisor. The individuals listed below are jointly and primarily responsible for day-to-day portfolio management.

     

Subadvisor

Portfolio Managers

Service Date

PineStone Asset Management Inc.

Nadim Rizk, MBA, CFA, Lead Portfolio Manager

Since 2023

 

Andrew Chan, M.Sc., Portfolio Manager

Since 2023

19


MainStay PineStone U.S. Equity Fund

How to Purchase and Sell Shares

You may purchase or sell shares of the Fund on any day the Fund is open for business by contacting your financial adviser or financial intermediary firm, or by contacting the Fund by telephone at 800-624-6782, by mail at MainStay Funds, P.O. Box 219003, Kansas City, MO 64121-9000, by overnight mail to 430 West 7th Street, Suite 219003, Kansas City, MO 64105-1407, or by accessing our website at newyorklifeinvestments.com/accounts.

Class R6 shares are generally only available to certain retirement plans invested in the Fund through omnibus accounts (either at the plan level or omnibus accounts held on the books of the Fund). Class R6 shares are generally not available to retail accounts. Generally, an initial investment minimum of $1,000 applies if you invest in Class C shares, $15,000 for Class A shares and $1,000,000 for individual investors in Class I shares investing directly (i) with the Fund or (ii) through certain private banks and trust companies that have an agreement with NYLIFE Distributors LLC, the Fund’s principal underwriter and distributor, or its affiliates. A subsequent investment minimum of $50 applies to investments in Class C shares. However, for Class C shares purchased through AutoInvest, MainStay’s systematic investment plan, a $500 initial investment minimum and a $50 minimum for subsequent purchases applies. Class A shares have no subsequent investment minimum. Class R6 shares and institutional shareholders in Class I shares have no initial or subsequent investment minimums.

Certain financial intermediaries through whom you may invest may impose their own investment minimums, fees, policies and procedures for purchasing and selling Fund shares, which are not described in this Prospectus or the Statement of Additional Information, and which will depend on the policies, procedures and trading platforms of the financial intermediary. Consult a representative of your financial intermediary about the availability of shares of the Fund and the intermediary's policies, procedures and other information.

Tax Information

The Fund's distributions are generally taxable to you as ordinary income, capital gains, or a combination of the two, unless you are investing through a tax-deferred arrangement, such as a 401(k) plan or an individual retirement account.

Compensation to Financial Intermediary Firms

If you purchase Fund shares through a financial intermediary firm (such as a broker/dealer or bank), the Fund and its related companies may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the financial intermediary firm or your financial adviser to recommend the Fund over another investment. Ask your financial adviser or visit your financial intermediary firm's website for more information. No compensation, administrative payments, sub-transfer agency payments or service payments are paid to broker/dealers or other financial intermediaries from Fund assets or the Distributor’s or an affiliate’s resources on sales of or investments in Class R6 shares. The Distributor or an affiliate may pay de minimis amounts to intermediaries for setup, connectivity or other technological expenses. Class R6 shares do not carry sales charges or pay Rule 12b-1 fees, or make payments to financial intermediaries to assist in, or in connection with, the sale of the Fund’s shares.

20


MainStay PineStone U.S. Equity Fund

Investment Objective

The Fund seeks long-term capital appreciation.

Fees and Expenses of the Fund

The table below describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries for effecting transactions in a class of shares of the Fund that has no initial sales charge, contingent deferred sales charge, or other asset-based fee for sales or distribution, such as Class P shares. These fees are not reflected in the fee and expense table or example table below.

           

 

 

Class P

Shareholder Fees (fees paid directly from your investment)

 

 

 

 

 

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

 

None

 

 

 

Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)

 

None

 

 

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

 

 

 

 

 

Management Fees (as an annual percentage of the Fund's average daily net assets)

 

0.55

%

 

Distribution and/or Service (12b-1) Fees

 

None

 

 

 

Other Expenses1

 

0.07

%

 

Total Annual Fund Operating Expenses

 

0.62

%

1. Restated to reflect the expenses expected to be incurred during the current fiscal year.

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 whether or not you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects the contractual fee waiver and/or expense reimbursement arrangement, if applicable, for the current duration of the arrangement only. 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 P

 

$        63

 

$      199

 

$      346

 

$      774

 

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 period, the Fund's portfolio turnover rate was 2% of the average value of its portfolio.

Principal Investment Strategies

PineStone Asset Management Inc., the Fund’s subadvisor (the “Subadvisor”), seeks to achieve the Fund’s investment objective by investing substantially in a portfolio of U.S. equities. The Fund generally expects to focus on issuers with market capitalizations in excess of $1 billion.

The Subadvisor seeks to invest in what it believes are quality companies, i.e., companies that the Subadvisor considers to have, among other things, an ability to generate an elevated level of return on invested capital significantly above the cost of capital.

Under normal circumstances, the Fund invests at least 80% of its assets (net assets plus any borrowings for investment purposes) in equity securities of U.S. companies. An issuer of a security is considered to be a U.S. or foreign issuer based on the issuer’s “country of risk” (or similar designation) as determined by a third party such as Bloomberg, Factset or ICE Data Services Inc.

Equity securities include common stock, preferred stock, convertible securities and depositary receipts.

Investment Process:

In pursuing the Fund’s investment objective, the Subadvisor employs a bottom-up stock selection approach which results in a portfolio generally ranging from 20 to 45 companies. A bottom-up stock selection approach focuses on the analysis of individual stocks (microeconomic factors) as opposed to the significance of economic cycles and market cycles (macroeconomic factors).

The Subadvisor looks for quality companies that have growth potential that are believed to be trading at attractive valuations. In doing so, the Subadvisor focuses on companies believed by the portfolio management team to have the following characteristics, among others:

· Competitive advantage in an industry with high barriers to entry;

· Attractive industry with pricing power, organic growth and limited cyclicality;

21


MainStay PineStone U.S. Equity Fund

· Strong management teams with sound corporate governance;

· History of stable profit margins;

· Solid balance sheet with low leverage; and

· Attractive valuation with a stock price below intrinsic value.

The portfolio management team expects to take a longer-term investment perspective, generally seeking to hold investments in companies for at least 5 years. In evaluating whether to sell a security, the Subadvisor considers, among other factors, whether in its view the company no longer continues to meet the standards described above and/or the Subadvisor believes there are more attractive opportunities available for investment by the Fund.

The Fund is non-diversified, which means that it may invest a greater amount of its assets in the securities of a single issuer or a small number of issuers than a diversified fund.

Principal Risks

You can lose money by investing in 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 governmental agency. The investments selected by the Subadvisor may underperform the market in which the Fund invests or other investments. The Fund may receive large purchase or redemption orders which may have adverse effects on performance if the Fund were required to sell securities, invest cash or hold a relatively large amount of cash at times when it would not otherwise do so.

The principal risks of investing in the Fund are summarized below.

An issuer of a security is considered to be a U.S. or foreign issuer based on the issuer’s “country of risk” (or similar designation) as determined by a third party such as Bloomberg, Factset or ICE Data Services, Inc. The issuer’s “country of risk” is determined based on a number of criteria, which may change from time to time and currently include, but are not limited to, its country of domicile, the primary stock exchange on which it trades, the location from which the majority of its revenue comes, and its reporting currency. Although the Fund will generally rely on an issuer’s “country of risk,” (or similar designation) as determined by Bloomberg, Factset or ICE Data Services, Inc when categorizing securities as either U.S. or foreign-based, it is not required to do so.

Market Risk: Changes in markets may cause the value of investments to fluctuate, which could cause the Fund to underperform other funds with similar investment objectives and strategies. Such changes may be rapid and unpredictable. From time to time, markets may experience periods of stress as a result of various market, economic and geopolitical factors for potentially prolonged periods that may result in: (i) increased market volatility; (ii) reduced market liquidity; and (iii) increased redemptions of shares. Such conditions may add significantly to the risk of volatility in the net asset value of the Fund's shares and adversely affect the Fund and its investments.

Portfolio Management Risk: The investment strategies, practices and risk analyses used by the Subadvisor may not produce the desired results or expected returns.

Equity Securities Risk: Investments in common stocks and other equity securities are particularly subject to the risk of changing economic, stock market, industry and company conditions and the risks inherent in the ability to anticipate such changes that can adversely affect the value of portfolio holdings.

Market Capitalization Risk: Investments in securities issued by small-, mid-, or large-cap companies will be subject to the risks associated with securities issued by companies of the applicable market capitalization.  Securities of small-cap and mid-cap companies may be subject to greater price volatility, significantly lower trading volumes, cyclical, static or moderate growth prospects and greater spreads between their bid and ask prices than securities of larger companies. Smaller capitalization companies frequently rely on narrower product lines and niche markets and may be more vulnerable to adverse business or market developments.  Securities issued by larger companies may have less growth potential and may not be able to attain the high growth rates of successful smaller companies, especially during strong economic periods.  In addition, larger companies may be less capable of responding quickly to competitive challenges and industry changes, including those resulting from improvements in technology, and may suffer sharper price declines as a result of earnings disappointments.  There is a risk that the securities issued by companies of a certain market capitalization may underperform the broader market at any given time.

Issuer Risk: An issuer in which the Fund invests or to which it has exposure may perform poorly, and the value of its securities may therefore decline, which would negatively affect the Fund’s performance. Poor performance may be caused by poor management decisions, competitive pressures, breakthroughs in technology, reliance on suppliers, labor problems or shortages, corporate restructurings, fraudulent disclosures, natural disasters, military confrontations and actions, war, other conflicts, terrorism, disease/virus outbreaks, epidemics or other events, conditions or factors.

Non-Diversification Risk: The Fund is a non-diversified, open-end management investment company under the Investment Company Act of 1940, as amended. A non-diversified fund may have a significant portion of its investments in a smaller number of issuers than a diversified fund.

22


MainStay PineStone U.S. Equity Fund

Having a larger percentage of assets in a smaller number of issuers makes a non-diversified fund, like the Fund, more susceptible to the risk that one single event or occurrence can have a significant adverse impact upon the Fund.

Sector Risk: To the extent the Fund focuses its investments in particular sectors of the economy, the Fund’s performance may be more subject to the risks of volatile economic cycles and/or conditions or developments adversely affecting such sectors than if the Fund held a broader range of investments. Individual sectors may fluctuate more widely than the broader market.

At times, the Fund may have a significant portion of its assets invested in securities of companies conducting business in a related group of industries within an economic sector, including the consumer staples sector. Companies in the same economic sector may be similarly affected by economic, regulatory, political or market events or conditions, which may make the Fund more vulnerable to unfavorable developments in that economic sector than funds that invest more broadly. Generally, the more broadly the Fund invests, the more it spreads risk and potentially reduces the risks of loss and volatility.

The Fund may also be more susceptible to the particular risks that may affect companies in the consumer staples sector than if it were invested in a wider variety of companies in unrelated sectors. Investments in the consumer staples sector involve risks associated with companies that manufacture products and provide staples services directly to the consumer. Performance of companies in the consumer staples sector may be adversely impacted by fluctuations in supply and demand, changes in the global economy, consumer spending, competition, demographics and consumer preferences, and production spending. Companies in the consumer staples sector are also affected by changes in government regulation, global economic, environmental and political events, and economic conditions.

Depositary Receipts Risk: Investments in depositary receipts may entail the special risks of investing in foreign securities, including currency exchange fluctuations, government regulations, and the potential for political and economic instability.

Preferred Stock Risk: Preferred stock is subject to many of the risks associated with debt securities, including interest rate risk. In addition, preferred stocks may not pay dividends, an issuer may suspend payment of dividends on preferred stock at any time, and in certain situations an issuer may call or redeem its preferred stock or convert it to common stock. To the extent that the Fund invests a substantial portion of its assets in convertible preferred stocks, declining common stock values may also cause the value of the Fund’s investments to decline.

Convertible Securities Risk: Convertible securities are typically subordinate to an issuer’s other debt obligations. In part, the total return for a convertible security depends upon the performance of the underlying stock into which it can be converted. Also, issuers of convertible securities are often not as strong financially as those issuing securities with higher credit ratings, are more likely to encounter financial difficulties and typically are more vulnerable to changes in the economy, such as a recession or a sustained period of rising interest rates, which could affect their ability to make interest and principal payments. If an issuer stops making interest and/or principal payments, the Fund could lose its entire investment.

Past Performance

The following bar chart and table provide some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual returns compare with those of a broad measure of market performance, as well as an additional index over time. Sales loads, if any, are not reflected in the bar chart. If they were, returns would be less than those shown. In accordance with new regulatory requirements, the Fund has selected the Russell 3000® Index, which represents a broad measure of market performance, as a replacement for the S&P 500® Index. The table also includes the average annual returns of the S&P 500® Index, which is generally representative of the market sectors or types of investments in which the Fund invests.

Index returns reflect no deductions for fees, expenses or taxes, except for foreign withholding taxes where applicable.

Because it has less than one calendar year of performance, performance data is not shown for Class P shares. The following bar chart and table reflect the performance for Class I shares of the Fund. The performance of Class P shares would be similar to Class I shares of the Fund because all share classes are invested in the same portfolio of securities and would differ only to the extent that Class P shares have different expenses.

Performance data for the classes varies based on differences in their fee and expense structures. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Please visit newyorklifeinvestments.com/funds for more recent performance information.

Effective August 25, 2023, the Fiera Capital U.S. Equity Long-Term Quality Fund (the "Predecessor Fund") was reorganized into the Fund. As accounting successor to the Predecessor Fund, the Fund has assumed the Predecessor Fund's historical performance. Therefore, the performance information shown below is that of the Predecessor Fund, which had a different fee structure from the Fund. The returns of the Predecessor Fund have not been adjusted to reflect the applicable expenses other than sales loads (if applicable) of the Fund.

23


MainStay PineStone U.S. Equity Fund

Annual Returns, Class I Shares

(by calendar year 2020-2023)

PerformanceBarChartData(2020:23.41,2021:33.27,2022:-15.52,2023:21.83)

     

Best Quarter

 

2020, Q2

19.83

%

Worst Quarter

 

2020, Q1

-15.17

%

Average Annual Total Returns (for the periods ended December 31, 2023)

             

 

 

 

 

 

 

Inception

 

         1 Year

Since

 

 

 

 

Inception

Return Before Taxes

 

 

 

 

 

 

Class I

9/30/2019

 

21.83

%

15.67

%

Return After Taxes on Distributions

 

 

 

 

 

 

Class I

 

 

21.73

%

15.23

%

Return After Taxes on Distributions and Sale of Fund Shares

 

 

 

 

 

 

Class I

 

 

12.99

%

12.48

%

Return Before Taxes

 

 

 

 

 

 

Class A

9/30/2019

 

21.58

%

15.40

%

 

 

 

 

 

 

 

Russell 3000® Index1

25.96

%

13.09

%

S&P 500® Index2

26.29

%

13.59

%

1. The Russell 3000® Index measures the performance of the largest 3,000 U.S. companies representing approximately 98% of the investable U.S. equity market.

2.  The S&P 500® Index is widely regarded as the standard index for measuring large-cap U.S. stock market performance.

Management

New York Life Investment Management LLC serves as the Manager. PineStone Asset Management Inc. serves as the Subadvisor. The individuals listed below are jointly and primarily responsible for day-to-day portfolio management.

     

Subadvisor

Portfolio Managers

Service Date

PineStone Asset Management Inc.

Nadim Rizk, MBA, CFA, Lead Portfolio Manager

Since 2023

 

Andrew Chan, M.Sc., Portfolio Manager

Since 2023

24


MainStay PineStone U.S. Equity Fund

How to Purchase and Sell Shares

You may purchase or sell shares of the Fund on any day the Fund is open for business by contacting your financial adviser or financial intermediary firm, or by contacting the Fund by telephone at 800-624-6782, by mail at MainStay Funds, P.O. Box 219003, Kansas City, MO 64121-9000, by overnight mail to 430 West 7th Street, Suite 219003, Kansas City, MO 64105-1407, or by accessing our website at newyorklifeinvestments.com/accounts.

Class P shares are generally only available to investors that have a relationship with PineStone Asset Management Inc. and are investing directly with the Fund. An investment minimum of $5,000,000 applies for Class P shares. Class P shares have no subsequent investment minimum.

Certain financial intermediaries through whom you may invest may impose their own investment minimums, fees, policies and procedures for purchasing and selling Fund shares, which are not described in this Prospectus or the Statement of Additional Information, and which will depend on the policies, procedures and trading platforms of the financial intermediary. Consult a representative of your financial intermediary about the availability of shares of the Fund and the intermediary's policies, procedures and other information.

Tax Information

The Fund's distributions are generally taxable to you as ordinary income, capital gains, or a combination of the two, unless you are investing through a tax-deferred arrangement, such as a 401(k) plan or an individual retirement account.

Compensation to Financial Intermediary Firms

If you purchase Fund shares through a financial intermediary firm (such as a broker/dealer or bank), the Fund and its related companies may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the financial intermediary firm or your financial adviser to recommend the Fund over another investment. Ask your financial adviser or visit your financial intermediary firm's website for more information. No compensation, administrative payments, sub-transfer agency payments or service payments are paid to broker/dealers or other financial intermediaries from Fund assets or the Distributor’s or an affiliate’s resources on sales of or investments in Class P shares. The Distributor or an affiliate may pay de minimis amounts to intermediaries for setup, connectivity or other technological expenses. Class P shares do not carry sales charges or pay Rule 12b-1 fees, or make payments to financial intermediaries to assist in, or in connection with, the sale of the Fund’s shares.

25


MainStay S&P 500 Index Fund

Investment Objective

The Fund seeks investment results that correspond to the total return performance (reflecting reinvestment of dividends) of common stocks in the aggregate, as represented by the S&P 500® Index.

Fees and Expenses of the Fund

The table below describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund. In addition, different financial intermediary firms and financial professionals may impose different sales loads and waivers. More information about these and other discounts or waivers is available from your financial professional, in the "Information on Sales Charges" section starting on page 139 of the Prospectus and Appendix A – Intermediary-Specific Sales Charge Waivers and Discounts, and in the "Alternative Sales Arrangements" section on page 147 of the Statement of Additional Information.

                                   

 

 

Class A

 

Investor  Class

 

Class I

 

SIMPLE Class

Shareholder Fees (fees paid directly from your investment)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

 

1.50

%

 

1.00

%

 

None

 

 

 

None

 

 

 

Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)

 

None

1 

 

 

None

1 

 

 

None

 

 

 

None

 

 

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Management Fees (as an annual percentage of the Fund's average daily net assets)2

 

0.16

%

 

0.16

%

 

0.16

%

 

0.16

%

 

Distribution and/or Service (12b-1) Fees

 

0.25

%

 

0.25

%

 

None

 

 

 

0.50

%

 

Other Expenses

 

0.11

%

 

0.43

%

 

0.11

%

 

0.16

%

 

Total Annual Fund Operating Expenses

 

0.52

%

 

0.84

%

 

0.27

%

 

0.82

%

1.  No initial sales charge applies on investments of $1 million or more (and certain other qualified purchases). However, a contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within 18 months of the date of purchase on shares that were purchased without an initial sales charge.

2. The management fee is as follows: 0.16% on assets up to $2.5 billion; and 0.15% on assets over $2.5 billion.

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 whether or not you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects the contractual fee waiver and/or expense reimbursement arrangement, if applicable, for the current duration of the arrangement only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

                         

   Expenses After

 

Class A

 

 

Investor

 

Class I

 

SIMPLE

 

 

 

 

 

 

 

Class

 

 

 

Class

 

   1 Year

 

$      202

 

 

$      185

 

 

$        28

 

$        84

 

   3 Years

 

$      314

 

 

$      365

 

 

$        87

 

$      262

 

   5 Years

 

$      436

 

 

$      561

 

 

$      152

 

$      455

 

   10 Years

 

$      793

 

 

$   1,127

 

 

$      343

 

$   1,014

 

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 2% of the average value of its portfolio.

Principal Investment Strategies

The Fund normally invests at least 80% of its assets (net assets plus any borrowings for investment purposes) in stocks as represented in the Standard & Poor's 500® Index ("S&P 500® Index”) in the same proportion, to the extent feasible.

The Fund may invest up to 20% of its total assets in options and futures contracts to maintain cash reserves, while being fully invested, to facilitate trading or to reduce transaction costs. The Fund may invest in such derivatives to try to enhance returns or reduce the risk of loss by hedging certain of its holdings.

Investment Process: IndexIQ Advisors LLC, the Fund's Subadvisor, uses statistical techniques to determine which stocks are to be purchased or sold to replicate the S&P 500® Index to the extent feasible. From time to time, adjustments may be made in the Fund's holdings because of

26


MainStay S&P 500 Index Fund

changes in the composition of the S&P 500® Index. The correlation between the investment performance of the Fund and the S&P 500® Index is expected to be at least 0.95, before charges, fees and expenses, on an annual basis. A correlation of 1.00 would indicate perfect correlation, which would be achieved when the net asset value of the Fund, including the value of its dividend and capital gains distributions, increases or decreases in exact proportion to changes in the S&P 500® Index.

Principal Risks

You can lose money by investing in 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 governmental agency. The investments selected by the Subadvisor may underperform the market in which the Fund invests or other investments. The Fund may receive large purchase or redemption orders which may have adverse effects on performance if the Fund were required to sell securities, invest cash or hold a relatively large amount of cash at times when it would not otherwise do so.

The principal risks of investing in the Fund are summarized below.

Market Risk: Changes in markets may cause the value of investments to fluctuate, which could cause the Fund to underperform other funds with similar investment objectives and strategies. Such changes may be rapid and unpredictable. From time to time, markets may experience periods of stress as a result of various market, economic and geopolitical factors for potentially prolonged periods that may result in: (i) increased market volatility; (ii) reduced market liquidity; and (iii) increased redemptions of shares. Such conditions may add significantly to the risk of volatility in the net asset value of the Fund's shares and adversely affect the Fund and its investments.

Portfolio Management Risk: The investment strategies, practices and risk analyses used by the Subadvisor may not produce the desired results or expected returns.

Equity Securities Risk: Investments in common stocks and other equity securities are particularly subject to the risk of changing economic, stock market, industry and company conditions and the risks inherent in the ability to anticipate such changes that can adversely affect the value of portfolio holdings.

Index Strategy Risk: The Fund employs an index strategy that seeks to invest in stocks as represented in the S&P 500® Index. If the value of the S&P 500® Index declines, the net asset value of shares of the Fund will also decline. Also, the Fund’s fees and expenses will reduce the Fund’s returns, whereas the S&P 500® Index is not subject to fees and expenses.

Correlation Risk: The ability to track the S&P 500® Index may be affected by, among other things, transaction costs; changes in either the composition of the S&P 500® Index or the number of shares outstanding for the components of the S&P 500® Index; and timing and amount of purchases and redemptions of the Fund's shares. Therefore, there is no assurance that the investment performance of the Fund will equal or exceed that of the S&P 500® Index.

Derivatives Risk: Derivatives are investments whose value depends on (or is derived from) the value of an underlying instrument, such as a security, asset, reference rate or index. Derivative strategies may be riskier than investing directly in the underlying instrument and often involve leverage, which may exaggerate a loss, potentially causing the Fund to lose more money than it originally invested and would have lost had it invested directly in the underlying instrument. Derivatives may be difficult to sell, unwind and/or value. Derivatives may also be subject to counterparty risk, which is the risk that the counterparty (the party on the other side of the transaction) on a derivative transaction will be unable or unwilling to honor its contractual obligations to the Fund. Futures and other derivatives may be more volatile than direct investments in the instrument underlying the contract, and may not correlate perfectly to the underlying instrument. Futures and other derivatives also may involve a small initial investment relative to the risk assumed, which could result in losses greater than if they had not been used. Due to fluctuations in the price of the underlying instrument, the Fund may not be able to profitably exercise an option and may lose its entire investment in an option. To the extent that the Fund writes or sells an option, if the decline in the value of the underlying instrument is significantly below the exercise price in the case of a written put option or increase above the exercise price in the case of a written call option, the Fund could experience a substantial loss. Derivatives may also increase the expenses of the Fund.

Regulatory Risk: The Fund as well as the issuers of the securities and other instruments in which the Fund invests are subject to considerable regulation and the risks associated with adverse changes in laws and regulations governing their operations.

Market Capitalization Risk: Investments in securities issued by small-, mid-, or large-cap companies will be subject to the risks associated with securities issued by companies of the applicable market capitalization.  Securities of small-cap and mid-cap companies may be subject to greater price volatility, significantly lower trading volumes, cyclical, static or moderate growth prospects and greater spreads between their bid and ask prices than securities of larger companies. Smaller capitalization companies frequently rely on narrower product lines and niche markets and may be more vulnerable to adverse business or market developments.  Securities issued by larger companies may have less growth potential and may not be able to attain the high growth rates of successful smaller companies, especially during strong economic periods.  In addition, larger companies may be less capable of responding quickly to competitive challenges and industry changes, including those resulting from improvements in technology, and may suffer sharper price declines as a result of earnings disappointments.  There is a risk that the securities issued by companies of a certain market capitalization may underperform the broader market at any given time.

27


MainStay S&P 500 Index Fund

Past Performance

The following bar chart and table provide some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual returns compare with those of a broad measure of market performance over time. Sales loads, if any, are not reflected in the bar chart. If they were, returns would be less than those shown. The Fund has selected the S&P 500® Index , which represents a broad measure of market performance, and is generally representative of the market sectors or types of investments in which the Fund invests.

Index returns reflect no deductions for fees, expenses or taxes, except for foreign withholding taxes where applicable.

Performance data for the classes varies based on differences in their fee and expense structures. Performance data is not shown for classes with less than one calendar year of performance. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Please visit newyorklifeinvestments.com/funds for more recent performance information.

The Fund’s subadvisor changed effective January 1, 2018 due to an organizational restructuring whereby all investment personnel of Cornerstone Capital Management Holdings LLC, a former subadvisor, transitioned to MacKay Shields LLC. The Fund's subadvisor changed again effective June 10, 2022 due to the transition of Francis J. Ok, the Fund's portfolio manager, from MacKay Shields LLC, a former subadvisor, to IndexIQ Advisors LLC, which is a wholly-owned, indirect subsidiary of New York Life Investment Holdings LLC.

Annual Returns, Class I Shares

(by calendar year 2014-2023)

PerformanceBarChartData(2014:13.28,2015:1.07,2016:11.57,2017:21.45,2018:-4.61,2019:31.18,2020:18.12,2021:28.37,2022:-18.31,2023:25.96)

     

Best Quarter

 

2020, Q2

20.45

%

Worst Quarter

 

2020, Q1

-19.61

%

28


MainStay S&P 500 Index Fund

Average Annual Total Returns (for the periods ended December 31, 2023)

                 

 

 

 

 

 

10 Years or

 

Inception

 

       1 Year

5 Years

Since

 

 

 

 

 

Inception

Return Before Taxes

 

 

 

 

 

 

 

 

Class I

1/2/1991

 

25.96

%

15.40

%

11.72

%

Return After Taxes on Distributions

 

 

 

 

 

 

 

 

Class I

 

 

24.70

%

13.08

%

9.50

%

Return After Taxes on Distributions and Sale of Fund Shares

 

 

 

 

 

 

 

 

Class I

 

 

16.19

%

11.94

%

9.05

%

Return Before Taxes

 

 

 

 

 

 

 

 

Class A

1/2/2004

 

23.74

%

14.41

%

11.10

%

Investor Class

2/28/2008

 

24.16

%

14.21

%

10.94

%

SIMPLE Class

8/31/2020

 

25.28

%

N/A

 

10.46

%

 

 

 

 

 

 

 

 

 

S&P 500® Index1

26.29

%

15.69

%

12.03