In vesco Oppenheimer Capital Income Fund

Investment Objective(s)

The Fund’s investment objective is to seek total return.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Fees and expenses of a wholly-owned subsidiary of the Fund organized under the laws of the Cayman Islands (Subsidiary) are included in the table. Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class R6 shares, which are not reflected in the table or the Example below.

Shareholder Fees (fees paid directly from your investment)
Class:		R5					R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)				None					None
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less)				None					None

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Class:		R5					R6
Management Fees				0.53	%				0.53	%
Distribution and/or Service (12b-1) Fees				None					None
Other Expenses 1				0.11					0.06
Acquired Fund Fees and Expenses 1				0.02					0.02
Total Annual Fund Operating Expenses				0.66					0.61
Fee Waiver and/or Expense Reimbursement 2				0.04					0.04
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement				0.62					0.57

1	“Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.

2

Invesco Advisers, Inc. (Invesco or the Adviser) has contractually agreed to waive advisory fees and/or reimburse expenses to the extent necessary to limit Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement (excluding Acquired Fund Fees and Expenses and certain items discussed in the statement of additional information (SAI)) of Class R5, and Class R6 shares to 0.68% and 0.63%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. Invesco has also contractually agreed to waive a portion of the Fund’s management fee in an amount equal to the net management fee that Invesco earns on the Fund’s investments in certain affiliated funds, which will have the effect of reducing the Acquired Fund Fees and Expenses, through at least May 28, 2021. During their terms, the fee waiver agreements cannot be terminated or amended to increase the expense limits or reduce the advisory waiver without approval of the Board of Trustees.

Example. This 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 and then redeem all of your shares at the end of those periods. This Example does not include commissions and/or other forms of compensation that investors may pay on transactions in Class R6 shares. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain equal to the Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement for the contractual period above and the Total Annual Fund Operating Expenses thereafter.

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 R5			$	63				$	203				$	360				$	815
Class R6			$	58				$	187				$	332				$	754

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 predecessor fund’s (defined below) portfolio turnover rate was 88% of the average value of its portfolio.

Principal Investment Strategies of the Fund

The Fund invests in equity, debt and other securities of domestic and foreign issuers in different capitalization ranges and in developed or developing countries. Under normal market conditions, the Fund invests at least 65% of its total assets in equity and debt securities that are expected to generate income. The percentages of equity and debt securities the Fund holds may vary from time to time. There is no limit on the Fund’s investments in foreign securities. The Fund employs multiple strategies: an equity/equity-like strategy, which may include common stocks, preferred stocks, structured notes, convertible bonds and other derivatives such as options and futures on equities and equity indices; a high grade fixed income strategy, which may include corporate bonds, government bonds, mortgage related securities and structured products; and an opportunistic strategy, which seeks asymmetric risk/reward opportunities where the portfolio managers believe the return profile has a low correlation to traditional investment strategies, as well as opportunistically selecting positions to seek total return, income, or capital appreciation. The opportunistic strategy may include convertible bonds, corporate bonds, asset-backed securities, convertible bonds, derivatives, such as currency and commodity-linked derivatives, cash and other securities. The opportunistic strategy may also include floating rate loans (sometimes referred to as “adjustable rate loans”) that hold a senior position in the capital structure of U.S. and foreign corporations, partnerships or other business entities that, under normal circumstances, allow them to have priority of claim ahead of other obligations of a borrower in the event of liquidation. These investments are referred to as “Senior Loans.” Senior Loans may be collateralized or uncollateralized. They typically pay interest at rates that are reset periodically based on a reference benchmark that reflects current interest rates, plus a margin or premium.

Equity Securities. In selecting equity securities, the portfolio managers mainly use value-oriented and core investing styles. A security may be undervalued because the market does not yet recognize its potential or the issuer is temporarily out of favor. The Fund seeks to realize gains when other investors recognize the real or prospective worth of the security. Value securities may offer higher than average dividends and the Fund may invest in equity securities to seek either current income or capital growth, or both. The Fund may also invest in equity securities solely for the purpose of seeking dividend yields, which may include engaging in dividend capture strategies, in which the portfolio managers purchase securities prior to the record date for a dividend and sell them within a short time thereafter. The portfolio managers typically looks for securities that can deliver attractive risk-adjusted returns, which may include securities that: have high current income, are believed to have substantial earnings possibilities, have low price/earnings ratios, or have a low price relative to the underlying value of the issuer’s assets, earnings, cash flow or other factors.

Debt Securities. In connection with the high grade fixed income strategy, the portfolio managers look for high current yields and typically search for corporate and government debt securities that offer: attractive relative value, more income than U.S. treasury obligations, a balance of risk and return, high income potential and portfolio diversification. The Fund may also invest in zero-coupon and stripped securities. In connection with the opportunistic strategy, the portfolio managers look for high yield, below-investment-grade securities, senior loans and asset-backed securities, among other debt securities, that may offer attractive returns on a

risk-adjusted basis, with lower interest rate sensitivity. The Fund can invest up to 40% of its total assets in below-investment-grade securities, also referred to as “junk bonds.”

The Fund’s debt securities may be rated by a nationally recognized statistical rating organization or may be unrated. “Investment grade” securities are rated in one of the top four rating categories.

Other Securities. In pursuing its strategies, the Fund may also use derivative instruments, including to seek income or returns, or to try to manage market or other investment risks. These derivatives may include options, futures, swaps, “structured” notes, mortgage-related securities, equity-linked debt securities and commodity-linked derivatives. The Fund may also invest in convertible bonds, asset-backed securities, Senior Loans, participation interests in loans, pooled investment entities that invest in loans and currency derivatives, among other types of investments.

The Fund may sell securities that no longer meet the above criteria.

The Fund’s holdings may at times differ significantly from the weightings of the indices comprising its reference index (the Reference Index). The Fund’s Reference Index is a customized weighted index currently comprised of the following underlying broad-based security indices: 65% of the Bloomberg Barclays U.S. Aggregate Bond Index and 35% of the Russell 3000 Index. The Fund is not managed to be invested in the same percentages as those indices comprising the Reference Index.

The Fund may invest up to 25% of its total assets in the Subsidiary, a Cayman Islands company that is wholly-owned and controlled by the Fund. The Subsidiary invests in commodity-linked derivatives (including commodity futures, financial futures, options and swap contracts) and exchange-traded funds and other exchange-traded products related to gold or other special minerals (Gold ETFs). The Subsidiary may also invest in certain fixed-income securities and other investments that may serve as margin or collateral for its derivatives positions. Investments in the Subsidiary are intended to provide the Fund with exposure to commodities market returns within the limitations of the federal tax requirements that apply to the Fund. The Fund applies its investment restrictions and compliance policies and procedures, on a look-through basis, to the Subsidiary. The Fund’s investment in the Subsidiary may vary based on the portfolio managers’ use of different types of commodity-linked derivatives, fixed-income securities, Gold ETFs, and other investments. Since the Fund may invest a substantial portion of its assets in the Subsidiary, which may hold certain of the investments described in this prospectus, the Fund may be considered to be investing indirectly in those investments through its Subsidiary. Therefore, references in this prospectus to investments by the Fund also may be deemed to include the Fund’s indirect investments through the Subsidiary.

Principal Risks of Investing in the Fund

As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are:

Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall sharply at times. Adverse events in any part of the equity or fixed-income markets may have unexpected negative effects on other market segments. Different stock markets may behave differently from each other and U.S. stock markets may move in the opposite direction from one or more foreign stock markets.

The prices of individual stocks generally do not all move in the same direction at the same time. A variety of factors can negatively affect the price of a particular company’s stock. These factors may include, but are not limited to: poor earnings reports, a loss of customers, litigation against the company, general unfavorable performance of the company’s sector or industry, or changes in government regulations affecting the company or its industry. To the extent that securities of a particular type are emphasized (for example

foreign stocks, stocks of small- or mid-cap companies, growth or value stocks, or stocks of companies in a particular industry), fund share values may fluctuate more in response to events affecting the market for those types of securities.

Risks of Value Investing. Value investing entails the risk that if the market does not recognize that a fund’s securities are undervalued, the prices of those securities might not appreciate as anticipated. A value approach could also result in fewer investments that increase rapidly during times of market gains and could cause a fund to underperform funds that use a growth or non-value approach to investing. Value investing has gone in and out of favor during past market cycles and when value investing is out of favor or when markets are unstable, the securities of “value” companies may underperform the securities of “growth” companies.

Risks of Investing in Debt Securities. Debt securities may be subject to interest rate risk, duration risk, credit risk, credit spread risk, extension risk, reinvestment risk, prepayment risk and event risk. Interest rate risk is the risk that when prevailing interest rates fall, the values of already-issued debt securities generally rise; and when prevailing interest rates rise, the values of already-issued debt securities generally fall, and therefore, those debt securities may be worth less than the amount the Fund paid for them or valued them. When interest rates change, the values of longer-term debt securities usually change more than the values of shorter-term debt securities. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are near historic lows. Duration is a measure of the price sensitivity of a debt security or portfolio to interest rate changes. Duration risk is the risk that longer-duration debt securities will be more volatile and thus more likely to decline in price, and to a greater extent, in a rising interest rate environment than shorter-duration debt securities. Credit risk is the risk that the issuer of a security might not make interest and principal payments on the security as they become due. If an issuer fails to pay interest or repay principal, the Fund’s income or share value might be reduced. Adverse news about an issuer or a downgrade in an issuer’s credit rating, for any reason, can also reduce the market value of the issuer’s securities. “Credit spread” is the difference in yield between securities that is due to differences in their credit quality. There is a risk that credit spreads may increase when the market expects lower-grade bonds to default more frequently. Widening credit spreads may quickly reduce the market values of the Fund’s lower-rated and unrated securities. Some unrated securities may not have an active trading market or may trade less actively than rated securities, which means that the Fund might have difficulty selling them promptly at an acceptable price. Extension risk is the risk that an increase in interest rates could cause prepayments on a debt security to occur at a slower rate than expected. Extension risk is particularly prevalent for a callable security where an increase in interest rates could result in the issuer of that security choosing not to redeem the security as anticipated on the security’s call date. Such a decision by the issuer could have the effect of lengthening the debt security’s expected maturity, making it more vulnerable to interest rate risk and reducing its market value. Reinvestment risk is the risk that when interest rates fall the Fund may be required to reinvest the proceeds from a security’s sale or redemption at a lower interest rate. Callable bonds are generally subject to greater reinvestment risk than non-callable bonds. Prepayment risk is the risk that the issuer may redeem the security prior to the expected maturity or that borrowers may repay the loans that underlie these securities more quickly than expected, thereby causing the issuer of the security to repay the principal prior to the expected maturity. The Fund may need to reinvest the proceeds at a lower interest rate, reducing its income. Event risk is the risk that an issuer could be subject to an event, such as a buyout or debt restructuring, that interferes with its ability to make timely interest and principal payments and cause the value of its debt securities to fall.

Fixed-Income Market Risks. The fixed-income securities market can be susceptible to increases in volatility and decreases in liquidity. Liquidity may decline unpredictably in response to overall economic conditions or credit tightening. During times of reduced market liquidity, the Fund may not be able to readily sell bonds at the prices at which they are carried on

the Fund’s books and could experience a loss. If the Fund needed to sell large blocks of bonds to meet shareholder redemption requests or to raise cash, those sales could further reduce the bonds’ prices, particularly for lower-rated and unrated securities. An unexpected increase in redemptions by Fund shareholders (including requests from shareholders who may own a significant percentage of the Fund’s shares), which may be triggered by general market turmoil or an increase in interest rates, as well as other adverse market and economic developments, could cause the Fund to sell its holdings at a loss or at undesirable prices and adversely affect the Fund’s share price and increase the Fund’s liquidity risk, Fund expenses and/or taxable distributions. As of the date of this prospectus, interest rates in the U.S. are near historically low levels, increasing the exposure of bond investors to the risks associated with rising interest rates.

Economic and other market developments can adversely affect fixed-income securities markets in the United States, Europe and elsewhere. At times, participants in debt securities markets may develop concerns about the ability of certain issuers of debt securities to make timely principal and interest payments, or they may develop concerns about the ability of financial institutions that make markets in certain debt securities to facilitate an orderly market. Those concerns may impact the market price or value of those debt securities and may cause increased volatility in those debt securities or debt securities markets. Under some circumstances, those concerns may cause reduced liquidity in certain debt securities markets, reducing the willingness of some lenders to extend credit, and making it more difficult for borrowers to obtain financing on attractive terms (or at all). A lack of liquidity or other adverse credit market conditions may hamper the Fund’s ability to sell the debt securities in which it invests or to find and purchase suitable debt instruments.

Risks of Below-Investment-Grade Securities. As compared to investment-grade debt securities, below-investment grade debt securities (also referred to as “junk” bonds), whether rated or unrated, may be subject to greater price fluctuations and increased credit risk, as the issuer might not be able to pay interest and principal when due, especially during times of weakening economic conditions or rising interest rates. Credit rating downgrades of a single issuer or related similar issuers whose securities the Fund holds in significant amounts could substantially and unexpectedly increase the Fund’s exposure to below-investment-grade securities and the risks associated with them, especially liquidity and default risk. The market for below-investment-grade securities may be less liquid and therefore these securities may be harder to value or sell at an acceptable price, especially during times of market volatility or decline.

Risks of Senior Loans and Other Loans. The Fund may invest in loans, and in particular, in floating rate loans (sometimes referred to as “adjustable rate loans”) that hold (or in the judgment of the investment adviser, hold) a senior position in the capital structure of U.S. and foreign corporations, partnerships or other business entities that, under normal circumstances, allow them to have priority of claim ahead of (or at least as high as) other obligations of a borrower in the event of liquidation. These investments are referred to as “Senior Loans.” Loans may be collateralized or uncollateralized. They typically pay interest at rates that are reset periodically based on a reference benchmark that reflects current interest rates, plus a margin or premium. In addition to the risks typically associated with debt securities, such as credit and interest rate risk, senior loans are also subject to the risk that a court could subordinate a senior loan, which typically holds a senior position in the capital structure of a borrower, to presently existing or future indebtedness or take other action detrimental to the holders of senior loans. Loans usually have mandatory and optional prepayment provisions. If a borrower prepays a loan, the Fund will have to reinvest the proceeds in other loans or financial assets that may pay lower rates of return.

Loans are subject to the risk that the value of the collateral, if any, securing a loan may decline, be insufficient to meet the obligations of the borrower, or be difficult to liquidate. In the event of a default, the Fund may have difficulty collecting on any collateral and would not have the ability to collect on any collateral for an uncollateralized loan. In addition, the

lenders’ security interest or their enforcement of their security under the loan agreement may be found by a court to be invalid or the collateral may be used to pay other outstanding obligations of the borrower. The Fund’s access to collateral, if any, may be limited by bankruptcy, other insolvency laws, or by the type of loan the Fund has purchased. As a result, a collateralized loan may not be fully collateralized and can decline significantly in value.

Loan investments are often issued in connection with highly leveraged transactions. Such transactions include leveraged buyout loans, leveraged recapitalization loans, and other types of acquisition financing. These obligations are subject to greater credit risks than other investments including a greater possibility that the borrower may default or enter bankruptcy.

Due to restrictions on transfers in loan agreements and the nature of the private syndication of loans including, for example, the lack of publicly-available information, some loans are not as easily purchased or sold as publicly-traded securities. Some loans are illiquid, which may make it difficult for the Fund to value them or dispose of them at an acceptable price when it wants to. The market price of investments in floating rate loans are expected to be less affected by changes in interest rates than fixed-rate investments because floating rate loans pay a floating rate of interest that will fluctuate as market interests rates do and therefore should more closely track market movements in interest rates.

Compared to securities and to certain other types of financial assets, purchases and sales of loans take relatively longer to settle. This extended settlement process can (i) increase the counterparty credit risk borne by the Fund; (ii) leave the Fund unable to timely vote, or otherwise act with respect to, loans it has agreed to purchase; (iii) delay the Fund from realizing the proceeds of a sale of a loan; (iv) inhibit the Fund’s ability to re-sell a loan that it has agreed to purchase if conditions change (leaving the Fund more exposed to price fluctuations); (v) prevent the Fund from timely collecting principal and interest payments; and (vi) expose the Fund to adverse tax or regulatory consequences.

To the extent the extended loan settlement process gives rise to short-term liquidity needs, such as the need to satisfy redemption requests, the Fund may hold cash, sell investments or temporarily borrow from banks or other lenders. If the Fund undertakes such measures, the Fund’s ability to pay redemption proceeds in a timely manner may be adversely affected, as well as the Fund’s performance.

If the Fund invests in a loan via a participation, the Fund will be exposed to the ongoing counterparty risk of the entity providing exposure to the loan (and, in certain circumstances, such entity’s credit risk), in addition to the exposure the Fund has to the creditworthiness of the borrower.

In certain circumstances, loans may not be deemed to be securities, and in the event of fraud or misrepresentation by a borrower or an arranger, lenders will not have the protection of the anti-fraud provisions of the federal securities laws, as would be the case for bonds or stocks. Instead, in such cases, lenders generally rely on the contractual provisions in the loan agreement itself, and common-law fraud protections under applicable state law.

Risks of Mortgage-Related Securities. The Fund can buy interests in pools of residential or commercial mortgages in the form of “pass-through” mortgage securities. They may be issued or guaranteed by the U.S. government, or its agencies and instrumentalities, or by private issuers. The prices and yields of mortgage-related securities are determined, in part, by assumptions about the rate of payments of the underlying mortgages and are subject to the risks of unanticipated prepayment and extension risks. Mortgage-backed securities are also subject to interest rate risk, and the market for mortgage-backed securities may be volatile at times and may be less liquid than the markets for other types of securities. Mortgage-related securities issued by private issuers are not U.S. government securities, and are subject to greater credit risks than mortgage-related securities that are U.S. government securities. In addition, a substantial portion of the Fund’s assets may be subject to “forward roll” transactions (also referred to as “mortgage dollar rolls”) at any given time, which subject the Fund to the risk that market value of the mortgage-related securities involved might decline, and that the counterparty might default in its obligations.

Asset-Backed Securities Risk. The Fund can buy asset-backed securities, which are fractional interests in pools of loans and are collateralized by the loans, other assets or receivables. They are typically issued by trusts and special purpose corporations that pass the income from the underlying pool to the purchasers. These securities are subject to the risk of default by the issuer as well as by the borrowers of the underlying loans in the pool, and to interest rate and prepayment risks.

Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight.

Risks of Developing and Emerging Markets. Investments in developing and emerging markets are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Developing or emerging market countries may have less well-developed securities markets and exchanges that may be substantially less liquid than those of more developed markets. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, and governments of developing or emerging market countries may also be more unstable than the governments of more developed countries. Such countries’ economies may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries also may be subject to social, political or economic instability. The value of developing or emerging market countries’ currencies may fluctuate more than the currencies of countries with more mature markets. Investments in developing or emerging market countries may be subject to greater risks of government restrictions, including confiscatory taxation, expropriation or nationalization of a company’s assets, restrictions on foreign ownership of local companies, restrictions on withdrawing assets from the country, protectionist measures, and practices such as share blocking. In addition, the ability of foreign entities to participate in privatization programs of certain developing or emerging market countries may be limited by local law. Investments in securities of issuers in developing or emerging market countries may be considered speculative.

Eurozone Investment Risks. Certain of the regions in which the Fund may invest, including the European Union (EU), currently experience significant financial difficulties. Following the global economic crisis that

began in 2008, some of these countries have depended on, and may continue to be dependent on, the assistance from others such as the European Central Bank (ECB) or other governments or institutions, and failure to implement reforms as a condition of assistance could have a significant adverse effect on the value of investments in those and other European countries. In addition, countries that have adopted the euro are subject to fiscal and monetary controls that could limit the ability to implement their own economic policies, and could voluntarily abandon, or be forced out of, the euro. Such events could impact the market values of Eurozone and various other securities and currencies, cause redenomination of certain securities into less valuable local currencies, and create more volatile and illiquid markets. Additionally, the United Kingdom’s intended departure from the EU, commonly known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the United Kingdom.

Risks of Small- and Mid-Cap Companies. Small-cap companies may be either established or newer companies, including “unseasoned” companies that have typically been in operation for less than three years. Mid-cap companies are generally companies that have completed their initial start-up cycle, and in many cases have established markets and developed seasoned market teams. While smaller companies might offer greater opportunities for gain than larger companies, they also may involve greater risk of loss. They may be more sensitive to changes in a company’s earnings expectations and may experience more abrupt and erratic price movements. Small- and mid-cap companies’ securities may trade in lower volumes and it might be harder for the Fund to dispose of its holdings at an acceptable price when it wants to sell them. Small- and mid-cap companies may not have established markets for their products or services and may have fewer customers and product lines. They may have more limited access to financial resources and may not have the financial strength to sustain them through business downturns or adverse market conditions. Since small- and mid-cap companies typically reinvest a high proportion of their earnings in their business, they may not pay dividends for some time, particularly if they are newer companies. Small- and mid-cap companies may have unseasoned management or less depth in management skill than larger, more established companies. They may be more reliant on the efforts of particular members of their management team and management changes may pose a greater risk to the success of the business. It may take a substantial period of time before the Fund realizes a gain on an investment in a small- or mid-cap company, if it realizes any gain at all.

Risks of Commodity-Linked Investments. Commodity-linked investments are considered speculative and have substantial risks, including the risk of loss of a significant portion of their principal value. Prices of commodities and commodity-linked investments may fluctuate significantly over short periods due to a variety of factors, including for example agricultural, economic and regulatory developments. These risks may make commodity-linked investments more volatile than other types of investments. The tax treatment of commodity-linked investments may be adversely affected by changes in legislation, regulations or other legally binding authority. If, as a result of any such adverse action, the income of the Fund from certain commodity-linked derivatives was treated as non-qualifying income, the Fund might fail to qualify as a regulated investment company and be subject to federal income tax at the Fund level.

Risks of Investments In The Fund ’ s Wholly-Owned Subsidiary. The Subsidiary is not registered under the Investment Company Act of 1940 and is not subject to its investor protections (except as otherwise noted in this prospectus). As an investor in the Subsidiary, the Fund does not have all of the protections offered to investors by the Investment Company Act of 1940. However, the Subsidiary is wholly-owned and controlled by the Fund and managed by the Adviser. Therefore, the Fund’s ownership and control of the Subsidiary make it unlikely that the Subsidiary would take actions contrary to the interests of the Fund or its shareholders. In addition,

changes in the laws of the United States and/or the Cayman Islands (where the Subsidiary is incorporated) could result in the inability of the Fund and/or the Subsidiary to operate as described in this prospectus and the SAI and could adversely affect the Fund. Changes in the laws of the United States and/or the Cayman Islands could adversely affect the performance of the Fund and/or the Subsidiary. For example, the Cayman Islands currently does not impose certain taxes on exempted companies like the Subsidiary, including income and capital gains tax, among others. If Cayman Islands laws were changed to require such entities to pay Cayman Islands taxes, the investment returns of the Fund would likely decrease.

Risks of Derivative Investments. Derivatives may involve significant risks. Derivatives may be more volatile than other types of investments, may require the payment of premiums, may increase portfolio turnover, may be illiquid, and may not perform as expected. Derivatives are subject to counterparty risk and the Fund may lose money on a derivative investment if the issuer or counterparty fails to pay the amount due. Some derivatives have the potential for unlimited loss, regardless of the size of the Fund’s initial investment. As a result of these risks, the Fund could realize little or no income or lose money from its investment, or a hedge might be unsuccessful. In addition, pursuant to rules implemented under financial reform legislation, certain over-the-counter derivatives are required to be executed on a regulated market and/or cleared through a clearinghouse. Entering into a derivative transaction with a clearinghouse may entail further risks and costs.

Risks of Leverage. Leverage may be created when an investment exposes the Fund to a risk of loss that exceeds the amount invested. Certain derivatives and other investments provide the potential for investment gain or loss that may be several times than the value of the underlying security, index or other investment.

Performance Information

The bar chart and performance table provide an indication of the risks of investing in the Fund. The Fund has adopted the performance of the Oppenheimer Capital Income Fund (the predecessor fund) as the result of a reorganization of the predecessor fund into the Fund, which was consummated after the close of business on May 24, 2019 (the “Reorganization”). Prior to the Reorganization, the Fund had not yet commenced operations. The bar chart shows changes in the performance of the predecessor fund from year to year as of December 31. The performance table compares the predecessor fund’s performance to that of a broad measure of market performance and additional indices with characteristics relevant to the Fund. For more information on the benchmarks used see the “Benchmark Descriptions” section of the prospectus. The Fund’s (and the predecessor fund’s) past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Class R6 shares’ returns shown for periods ending on or prior to May 24, 2019 are those of the Class I shares of the predecessor fund. Class I shares of the predecessor fund were reorganized into Class R6 shares of the Fund after the close of business on May 24, 2019. Class R6 shares’ returns of the Fund will be different from Class I shares’ returns of the predecessor fund as they have different expenses.

Class R5 shares of the Fund have less than a calendar year of performance; therefore, the returns shown are those of the Fund’s and predecessor fund’s Class A shares. Although the Class R5 shares are invested in the same portfolio of securities, Class R5 shares’ returns of the Fund will be different from Class A returns of the Fund and predecessor fund as they have different expenses.

Updated performance information is available on the Fund’s website at www.invesco.com/us.

Annual Total Returns

Class R6 shares year-to-date (ended March 31, 2019): 6.18%

Best Quarter (ended September 30, 2018): 3.22%

Worst Quarter (ended December 31, 2018): -5.76%

Average Annual Total Returns (for the periods ended December 31, 2018)
		1 Year					5 Years					10 Years					Since Inception
Class R6 shares: Inception (12/27/2013)
Return Before Taxes				-3.76	%				3.15	%				—					3.18	%
Return After Taxes on Distributions				-4.99					1.73					—					1.76
Return After Taxes on Distributions and Sale of Fund Shares				-2.20					1.77					—					1.80
Class R5 shares 1 : Inception (5/24/2019)				-4.15					2.71					6.66	%				—
Russell 3000 ® Index (reflects no deduction for fees, expenses or taxes) (12/27/2013)				-5.24					7.91					—					7.98
Bloomberg Barclays U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes) (12/27/2013)				0.01					2.52					—					2.53
Custom Invesco Oppenheimer Capital Income Index (reflects no deduction for fees, expenses or taxes) (12/27/2013)				-1.51					4.63					—					4.66

1

Class R5 shares’ performance prior to the inception date is that of the predecessor fund’s Class A shares at net asset value (NAV) and includes the 12b-1 fees applicable to Class A shares. Class A shares’ performance reflects any applicable fee waivers and/or expense reimbursements. The inception date of the predecessor fund’s Class A shares is December 1, 1970.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-advantaged arrangements, such as 401(k) plans, 529 college savings plans or individual retirement accounts. After-tax returns are shown for Class R6 shares only and after-tax returns for other classes will vary.

Management of the Fund

Investment Adviser: Invesco Advisers, Inc.

Portfolio Managers		Title		Length of Service on the Fund
Michelle Elena Borré Massick		Portfolio Manager (lead)		2019 (predecessor fund 2009)
Krishna Memani		Portfolio Manager		2019 (predecessor fund 2009)

Purchase and Sale of Fund Shares

You may purchase, redeem or exchange shares of the Fund on any business day through your financial adviser or by telephone at 800-959-4246.

There is no minimum initial investment for Employer Sponsored Retirement and Benefit Plans investing through a retirement platform that administers at least $2.5 billion in retirement plan assets. All other Employer Sponsored Retirement and Benefit Plans must meet a minimum initial investment of at least $1 million in each Fund in which it invests.

The minimum initial investment for all other institutional investors is $1 million, unless such investment is made by (i) an investment company, as defined under the Investment Company Act of 1940, as amended (1940 Act), that is part of a family of investment companies which own in the aggregate at least $100 million in securities, or (ii) an account established with a 529 college savings plan managed by Invesco, in which case there is no minimum initial investment.

There are no minimum investment amounts for Class R6 shares held through retail omnibus accounts maintained by an intermediary, such as a

broker, that (i) generally charges an asset-based fee or commission in

addition to those described in this prospectus, and (ii) maintains Class R6 shares and makes them available to retail investors.

Tax Information

The Fund’s distributions generally are taxable to you as ordinary income, capital gains, or some combination of both, unless you are investing through a tax-advantaged arrangement, such as a 401(k) plan, 529 college savings plan or individual retirement account. Any distributions from a 401(k) plan or individual retirement account may be taxed as ordinary income when withdrawn from such plan or account.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase the Fund through a broker-dealer or other financial intermediary (such as a bank), the Fund’s distributor or 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 broker-dealer or other intermediary and your salesperson or financial adviser to recommend the Fund over another investment. Ask your salesperson or financial adviser or visit your financial intermediary’s Web site for more information.

Inve sco Oppenheimer Developing Markets Fund

Investment Objective(s)

The Fund’s investment objective is to seek capital appreciation.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class R6 shares, which are not reflected in the table or the Example below.

Shareholder Fees (fees paid directly from your investment)
Class:		R5					R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)				None					None
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less)				None					None

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Class:		R5					R6
Management Fees				0.77	%				0.77	%
Distribution and/or Service (12b-1) Fees				None					None
Other Expenses 1				0.13					0.08
Total Annual Fund Operating Expenses 2				0.90					0.85

1	“Other Expenses” are based on estimated amounts for the current fiscal year.

2

Invesco Advisers, Inc. (Invesco or the Adviser) has contractually agreed to waive advisory fees and/or reimburse expenses to the extent necessary to limit Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement (excluding certain items discussed in the statement of additional information (SAI)) of Class R5 and Class R6 shares to 0.92% and 0.87%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. During its term, the fee waiver agreement cannot be terminated or amended to increase the expense limits without approval of the Board of Trustees.

Example. This 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 and then redeem all of your shares at the end of those periods. This Example does not include commissions and/or other forms of compensation that investors may pay on transactions in Class R6 shares. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same.

Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

		1 Year					3 Years					5 Years					10 Years
Class R5			$	92				$	287				$	498				$	1,108
Class R6			$	87				$	271				$	471				$	1,049

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 predecessor fund’s (defined below) portfolio turnover rate was 36% of the average value of its portfolio.

Principal Investment Strategies of the Fund

The Fund mainly invests in common stocks of issuers in developing and emerging markets throughout the world and at times it may invest up to 100% of its total assets in foreign securities. Under normal market conditions, the Fund will invest at least 80% of its net assets, plus borrowings for investment purposes, in equity securities of issuers whose principal activities are in a developing market, i.e. are in a developing market or are economically tied to a developing market country, and in derivatives and other instruments that have economic characteristics similar to such securities. The Fund will invest in at least three developing markets. The Fund focuses on companies with above-average earnings growth.

In general, countries may be considered developing or emerging markets if they are included in any one of the Morgan Stanley Capital International (MSCI) emerging markets indices, classified as a developing or emerging market, or classified under a similar or corresponding classification, by organizations such as the World Bank and the International Monetary Fund, or have economies, industries and stock markets with similar characteristics. For purposes of the Fund’s investments, a determination that an issuer is economically tied to a developing market country is based on factors including, but not limited to, geographic location of its primary trading markets, location of its assets, its domicile or its principal offices, or whether it receives revenues from a developing market. Such a determination can also be based, in whole or in part, on inclusion of an issuer or its securities in an Index representative of developing or emerging markets.

The Fund may invest directly in certain eligible China A Shares through Stock Connect (a securities trading and clearing program designed to achieve mutual stock market access between the People’s Republic of China (PRC) and Hong Kong), or, for operational efficiency and regulatory considerations, through an investment in a private investment vehicle organized under Delaware law that intends to invest significantly in China A Shares and other securities available to certain qualified investors (the China Fund). The China Fund’s managing member, OppenheimerFunds, has full and exclusive discretionary authority to manage the day-to-day operations of the China Fund and to invest its assets. The Fund’s investment in the China Fund may vary based on the portfolio manager’s use of different types of investments that provide exposure to Chinese securities (through Stock Connect). Since the Fund may invest a portion of its assets in the China Fund, the Fund may be considered to be investing indirectly in such Chinese securities through the China Fund.

In selecting investments for the Fund, the portfolio manager evaluates investment opportunities on a company-by-company basis. This approach includes fundamental analysis of a company’s financial statements, management record, and capital structure, operations, product development, and competitive position in its industry. The portfolio manager also looks for newer or established businesses that are entering into a growth cycle, have the potential for accelerating earnings growth or cash flow, and possess reasonable valuations. The portfolio manager considers the effect of worldwide trends on the growth of particular business sectors and looks for

companies that may benefit from those trends and seeks a diverse mix of industries and countries to help reduce the risks of foreign investing, such as currency fluctuations and stock market volatility. The portfolio manager may invest in growth companies of different capitalization ranges in any developing market country. The portfolio manager monitors individual issuers for changes in the factors above, which may trigger a decision to sell a security.

Principal Risks of Investing in the Fund

As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are:

Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall sharply at times. Adverse events in any part of the equity or fixed-income markets may have unexpected negative effects on other market segments. Different stock markets may behave differently from each other and U.S. stock markets may move in the opposite direction from one or more foreign stock markets.

The prices of individual stocks generally do not all move in the same direction at the same time. A variety of factors can negatively affect the price of a particular company’s stock. These factors may include, but are not limited to: poor earnings reports, a loss of customers, litigation against the company, general unfavorable performance of the company’s sector or industry, or changes in government regulations affecting the company or its industry. To the extent that securities of a particular type are emphasized (for example foreign stocks, stocks of small- or mid-cap companies, growth or value stocks, or stocks of companies in a particular industry), fund share values may fluctuate more in response to events affecting the market for those types of securities.

Industry and Sector Focus. At times the Fund may increase the relative emphasis of its investments in a particular industry or sector. The prices of stocks of issuers in a particular industry or sector may go up and down in response to changes in economic conditions, government regulations, availability of basic resources or supplies, or other events that affect that industry or sector more than others. To the extent that the Fund increases the relative emphasis of its investments in a particular industry or sector, its share values may fluctuate in response to events affecting that industry or sector. To some extent that risk may be limited by the Fund’s policy of not concentrating its investments in any one industry.

Risks of Investing in China A Shares. Investments in Class A Shares of Chinese companies involve certain risks and special considerations not typically associated with investments in U.S. companies, such as greater government control over the economy, political and legal uncertainty, currency fluctuations or blockage, the risk that the Chinese government may decide not to continue to support economic reform programs and the risk of nationalization or expropriation of assets. Additionally, the Chinese securities markets are emerging markets subject to the special risks applicable to developing and emerging market countries described elsewhere in this prospectus.

Risks of Investing in the China Fund. The China Fund is not registered under the Investment Company Act of 1940. As an investor in the China Fund, the Fund does not have all of the protections offered to investors by the Investment Company Act of 1940. However, the China Fund is controlled by the Fund and managed by OppenheimerFunds. Pursuant to an exemptive order granted on October 31, 2017 to the China Fund by the SEC, the China Fund is required to comply with the substantive requirements of a number of provisions of the Investment Company Act and the regulations thereunder. Further, the China Fund may invest substantially all of its assets in a limited number of issuers or a single issuer. To the extent that it does so, the China Fund is more subject to the risks associated with

and developments affecting such issuers than a fund that invests more widely.

Risks of Investing through Stock Connect. The Fund may invest directly in China A shares through Stock Connect, and will be subject to the following risks: sudden changes in quota limitations, application of trading suspensions, differences in trading days between the PRC and Stock Connect, operational risk, clearing and settlement risk and regulatory and taxation risk.

Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight.

Risks of Developing and Emerging Markets. Investments in developing and emerging markets are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Developing or emerging market countries may have less well-developed securities markets and exchanges that may be substantially less liquid than those of more developed markets. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, and governments of developing or emerging market countries may also be more unstable than the governments of more developed countries. Such countries’ economies may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries also may be subject to social, political or economic instability. The value of developing or emerging market countries’ currencies may fluctuate more than the currencies of countries with more mature markets. Investments in developing or emerging market countries may be subject to greater risks of government restrictions, including confiscatory taxation, expropriation or nationalization of a company’s assets, restrictions on foreign ownership of local companies, restrictions on withdrawing assets from the country, protectionist measures, and practices such as share blocking. In addition, the ability of foreign entities to participate in privatization programs of certain developing or emerging market countries may be limited by local law. Investments in securities of issuers in developing or emerging market countries may be considered speculative.

Eurozone Investment Risks. Certain of the regions in which the Fund may invest, including the European Union (EU), currently experience

significant financial difficulties. Following the global economic crisis that began in 2008, some of these countries have depended on, and may continue to be dependent on, the assistance from others such as the European Central Bank (ECB) or other governments or institutions, and failure to implement reforms as a condition of assistance could have a significant adverse effect on the value of investments in those and other European countries. In addition, countries that have adopted the euro are subject to fiscal and monetary controls that could limit the ability to implement their own economic policies, and could voluntarily abandon, or be forced out of, the euro. Such events could impact the market values of Eurozone and various other securities and currencies, cause redenomination of certain securities into less valuable local currencies, and create more volatile and illiquid markets. Additionally, the United Kingdom’s intended departure from the EU, commonly known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the United Kingdom.

Risks of Small- and Mid-Cap Companies. Small-cap companies may be either established or newer companies, including “unseasoned” companies that have typically been in operation for less than three years. Mid-cap companies are generally companies that have completed their initial start-up cycle, and in many cases have established markets and developed seasoned market teams. While smaller companies might offer greater opportunities for gain than larger companies, they also may involve greater risk of loss. They may be more sensitive to changes in a company’s earnings expectations and may experience more abrupt and erratic price movements. Small- and mid-cap companies’ securities may trade in lower volumes and it might be harder for the Fund to dispose of its holdings at an acceptable price when it wants to sell them. Small- and mid-cap companies may not have established markets for their products or services and may have fewer customers and product lines. They may have more limited access to financial resources and may not have the financial strength to sustain them through business downturns or adverse market conditions. Since small- and mid-cap companies typically reinvest a high proportion of their earnings in their business, they may not pay dividends for some time, particularly if they are newer companies. Small- and mid-cap companies may have unseasoned management or less depth in management skill than larger, more established companies. They may be more reliant on the efforts of particular members of their management team and management changes may pose a greater risk to the success of the business. It may take a substantial period of time before the Fund realizes a gain on an investment in a small- or mid-cap company, if it realizes any gain at all.

Risks of Growth Investing. If a growth company’s earnings or stock price fails to increase as anticipated, or if its business plans do not produce the expected results, its securities may decline sharply. Growth companies may be newer or smaller companies that may experience greater stock price fluctuations and risks of loss than larger, more established companies. Newer growth companies tend to retain a large part of their earnings for research, development or investments in capital assets. Therefore, they may not pay any dividends for some time. Growth investing has gone in and out of favor during past market cycles and is likely to continue to do so. During periods when growth investing is out of favor or when markets are unstable, it may be more difficult to sell growth company securities at an acceptable price. Growth stocks may also be more volatile than other securities because of investor speculation.

Performance Information

The bar chart and performance table provide an indication of the risks of investing in the Fund. The Fund has adopted the performance of the Oppenheimer Developing Markets Fund (the predecessor fund) as the result of a reorganization of the predecessor fund into the Fund, which was consummated after the close of business on May 24, 2019 (the “Reorganization”). Prior to the Reorganization, the Fund had not yet

commenced operations. The bar chart shows changes in the performance of the predecessor fund from year to year as of December 31. The performance table compares the predecessor fund’s performance to that of a broad-based securities market benchmark. For more information on the benchmark used see the “Benchmark Descriptions” section of the prospectus. The Fund’s (and the predecessor fund’s) past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Class R6 shares’ returns shown for periods ending on or prior to May 24, 2019 are those of the Class I shares of the predecessor fund. Class I shares of the predecessor fund were reorganized into Class R6 shares of the Fund after the close of business on May 24, 2019. Class R6 shares’ returns of the Fund will be different from Class I shares’ returns of the predecessor fund as they have different expenses.

Class R5 shares of the Fund have less than a calendar year of performance; therefore, the returns shown are those of the Fund’s and predecessor fund’s Class A shares. Although the Class R5 shares are invested in the same portfolio of securities, Class R5 shares’ returns of the Fund will be different from Class A returns of the Fund and predecessor fund as they have different expenses.

Updated performance information is available on the Fund’s website at www.invesco.com/us.

Annual Total Returns

Class R6 shares year-to-date (ended March 31, 2019): 12.43%

Best Quarter (ended March 31, 2012): 14.94%

Worst Quarter (ended September 30, 2015): -17.23%

Average Annual Total Returns (for the periods ended December 31, 2018)
		1 Year					5 Years					10 Years					Since Inception
Class R6 shares: Inception (12/29/2011)
Return Before Taxes				-11.79	%				1.13	%				—					4.94	%
Return After Taxes on Distributions				-12.07					0.71					—					4.53
Return After Taxes on Distributions and Sale of Fund Shares				-6.97					0.70					—					3.72
Class R5 shares 1 : Inception (5/24/2019)				-12.14					0.70					9.87	%				—
MSCI Emerging Markets Index (Net) (reflects reinvested dividends net of withholding taxes, but reflects no deductions for fees, expenses or other taxes) (12/29/2011)				-14.58					1.65					—					3.27

1

Class R5 shares’ performance prior to the inception date is that of the predecessor fund’s Class A shares at net asset value (NAV) and includes the 12b-1 fees applicable to Class A shares. Class A shares’ performance reflects any applicable fee waivers and/or expense reimbursements. The inception date of the predecessor fund’s Class A shares is November 18, 1996.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-advantaged arrangements, such as 401(k) plans, 529 college savings plans or individual retirement accounts. After-tax returns are shown for Class R6 shares only and after-tax returns for other classes will vary.

Management of the Fund

Investment Adviser: Invesco Advisers, Inc.

Portfolio Manager		Title		Length of Service on the Fund
Justin Leverenz, CFA		Portfolio Manager		2019 (predecessor fund 2009)

Purchase and Sale of Fund Shares

You may purchase, redeem or exchange shares of the Fund on any business day through your financial adviser or by telephone at 800-959-4246.

There is no minimum initial investment for Employer Sponsored Retirement and Benefit Plans investing through a retirement platform that administers at least $2.5 billion in retirement plan assets. All other Employer Sponsored Retirement and Benefit Plans must meet a minimum initial investment of at least $1 million in each Fund in which it invests.

The minimum initial investment for all other institutional investors is $1 million, unless such investment is made by (i) an investment company, as defined under the Investment Company Act of 1940, as amended (1940 Act), that is part of a family of investment companies which own in the aggregate at least $100 million in securities, or (ii) an account established with a 529 college savings plan managed by Invesco, in which case there is no minimum initial investment.

There are no minimum investment amounts for Class R6 shares held through retail omnibus accounts maintained by an intermediary, such as a broker, that (i) generally charges an asset-based fee or commission in addition to those described in this prospectus, and (ii) maintains Class R6 shares and makes them available to retail investors.

Tax Information

The Fund’s distributions generally are taxable to you as ordinary income, capital gains, or some combination of both, unless you are investing through a tax-advantaged arrangement, such as a 401(k) plan, 529 college savings plan or individual retirement account. Any distributions from a 401(k) plan or individual retirement account may be taxed as ordinary income when withdrawn from such plan or account.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase the Fund through a broker-dealer or other financial intermediary (such as a bank), the Fund’s distributor or 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 broker-dealer or other intermediary and your salesperson or financial adviser to recommend the Fund over another investment. Ask your salesperson or financial adviser or visit your financial intermediary’s Web site for more information.

Invesco O ppenheimer Emerging Markets Innovators Fund

Investment Objective(s)

The Fund’s investment objective is to seek capital appreciation.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class R6 shares, which are not reflected in the table or the Example below.

Shareholder Fees (fees paid directly from your investment)
Class:		R5					R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)				None					None
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less)				None					None

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Class:		R5					R6
Management Fees				1.15	%				1.15	%
Distribution and/or Service (12b-1) Fees				None					None
Other Expenses 1				0.17					0.12
Acquired Fund Fees and Expenses 1				0.01					0.01
Total Annual Fund Operating Expenses				1.33					1.28
Fee Waiver and/or Expense Reimbursement 2				0.03					0.03
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement				1.30					1.25

1	“Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.

2

Invesco Advisers, Inc. (Invesco or the Adviser) has contractually agreed to waive advisory fees and/or reimburse expenses to the extent necessary to limit Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement (excluding Acquired Fund Fees and Expenses and certain items discussed in the statement of additional information (SAI)) of Class R5 and Class R6 shares to 1.30% and 1.25%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. Invesco has also contractually agreed to waive a portion of the Fund’s management fee in an amount equal to the net management fee that Invesco earns on the Fund’s investments in certain affiliated funds, which will have the effect of reducing the Acquired Fund Fees and Expenses, through at least May 28, 2021. During their terms, the fee waiver agreements cannot be terminated or amended to increase the expense limits or reduce the advisory fee waiver without approval of the Board of Trustees.

Example. This 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 and then redeem all of your shares at the end of those periods. This Example does not include commissions and/or other forms of compensation that investors may pay on transactions in Class R6 shares. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain equal to the Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement for the contractual period above and the Total Annual Fund Operating Expenses thereafter.

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 R5			$	132				$	415				$	723				$	1,596
Class R6			$	127				$	400				$	696				$	1,540

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 predecessor fund’s (defined below) portfolio turnover rate was 24% of the average value of its portfolio.

Principal Investment Strategies of the Fund

The Fund mainly invests in equity securities of issuers in emerging and developing markets throughout the world. Under normal market conditions, the Fund will invest at least 80% of its net assets, plus borrowings for investment purposes, in equity securities of issuers that are economically tied to an emerging market country and in derivatives and other instruments that have economic characteristics similar to such securities. For purposes of the 80% investment policy, the Fund considers an “emerging market country” to be one whose economy or markets are generally considered emerging or developing. The Fund typically invests in at least three emerging market countries. At times, the Fund may invest up to 100% of its total assets in securities of issuers in emerging and developing markets.

In general, countries may be considered emerging or developing markets if they are included in any one of the Morgan Stanley Capital Index (MSCI) emerging markets indices, classified as an emerging or developing market, or classified under a similar or corresponding classification, by organizations such as the International Monetary Fund, or have economies, industries and stock markets with similar characteristics. For purposes of the 80% investment policy discussed above, a determination that an issuer is economically tied to an emerging market country is based on factors including, but not limited to, geographic location of its primary trading markets, location of its assets, its domicile or its principal offices, or whether it receives revenues or profits from goods produced or sold from, or investments made or services performed in, an emerging or developing market. Such a determination can also be based, in whole or in part, on identification of an issuer’s securities within an index or other listing indicating its location in an emerging or developing market country.

The Fund may also invest in securities of issuers in less-developed emerging market countries that are not included in standard emerging market benchmarks or classifications and are traditionally less accessible to investors or in the early stages of capital market or economic development (such countries are commonly referred to as “frontier” market countries). Frontier market countries generally have smaller economies and less developed capital markets than traditional emerging and developing market countries. Investments in issuers in frontier market countries are included in the 80% of the Fund’s assets discussed in the investment policy above.

The Fund seeks its investment objective by focusing on investments in securities of companies in emerging or developing markets that the Adviser believes are innovative in either, or a combination of, their products, services, processes, business models, management, use of technology, or approach to servicing geographic and consumer markets. The Fund invests primarily in common stocks, but can also invest in other equity securities, including preferred stocks, convertible securities, rights and warrants. The Fund may buy securities of issuers of any size, any market capitalization range and any industry or sector. Although the Fund can invest in securities of companies of any size and any market capitalization range, because innovative companies generally tend to have smaller market capitalizations, the Fund anticipates that it will generally have greater exposure to small- and mid-sized companies.

The Fund may invest directly in certain eligible China A Shares through Stock Connect (a securities trading and clearing program designed to achieve mutual stock market access between the People’s Republic of China (PRC) and Hong Kong), or, for operational efficiency and regulatory considerations, through an investment in a private investment vehicle organized under Delaware law that intends to invest significantly in China A Shares and other securities available to certain qualified investors (the China Fund). The China Fund’s managing member, OppenheimerFunds, has full and exclusive discretionary authority to manage the day-to-day operations of the China Fund and to invest its assets. The Fund’s investment in the China Fund may vary based on the portfolio managers’ use of different types of investments that provide exposure to Chinese securities (through Stock Connect). Since the Fund may invest a portion of its assets in the China Fund, the Fund may be considered to be investing indirectly in such Chinese securities through the China Fund.

In selecting investments for the Fund, the Adviser evaluates investment opportunities on a company-by-company basis. This approach includes fundamental analysis of a company’s financial statements, management record, capital structure, operations, product development, and competitive position in its industry. The portfolio managers also look for newer or established businesses that are entering, or expected to enter, into a growth cycle and have the potential for accelerating earnings growth or cash flow. The portfolio managers consider the effect of worldwide trends on the growth of particular business sectors and looks for companies that may benefit from those trends and seeks a diverse mix of industries and countries to help reduce the risks of foreign investing, such as currency fluctuations and stock market volatility. The portfolio managers take a broad view

that stretches across industries, sectors, companies and a company’s operational functions, when considering whether a company is deemed to be innovative. The portfolio managers monitor individual issuers for changes in the factors above, which may trigger a decision to sell a security. These factors may vary in particular cases and may change over time.

Principal Risks of Investing in the Fund

As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are:

Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall sharply at times. Adverse events in any part of the equity or fixed-income markets may have unexpected negative effects on other market segments. Different stock markets may behave differently from each other and U.S. stock markets may move in the opposite direction from one or more foreign stock markets.

The prices of individual stocks generally do not all move in the same direction at the same time. A variety of factors can negatively affect the price of a particular company’s stock. These factors may include, but are not limited to: poor earnings reports, a loss of customers, litigation against the company, general unfavorable performance of the company’s sector or industry, or changes in government regulations affecting the company or its industry. To the extent that securities of a particular type are emphasized (for example foreign stocks, stocks of small- or mid-cap companies, growth or value stocks, or stocks of companies in a particular industry), fund share values may fluctuate more in response to events affecting the market for those types of securities.

The Fund seeks to invest substantially in the securities of companies that the Adviser believes are positioned for competitive advantage, above-average earnings growth or otherwise benefitting from opportunities in the global economy as a result of the perceived innovative nature of each company with respect to either, or a combination of, its products, services, processes, business models, management, use of technology, or approach to servicing geographic and consumer markets. No assurance can be made that a perceived innovation will result in the competitive advantage or growth anticipated by the Adviser or that such competitive advantage or growth may not be significantly delayed.

Industry and Sector Focus . At times the Fund may increase the relative emphasis of its investments in a particular industry or sector. The prices of stocks of issuers in a particular industry or sector may go up and down in response to changes in economic conditions, government regulations, availability of basic resources or supplies, or other events that affect that industry or sector more than others. To the extent that the Fund increases the relative emphasis of its investments in a particular industry or sector, its share values may fluctuate in response to events affecting that industry or sector. To some extent that risk may be limited by the Fund’s policy of not concentrating its investments in any one industry.

Risks of Foreign Investing . Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s

assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight.

Risks of Developing and Emerging Markets . Investments in developing and emerging markets are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Developing or emerging market countries may have less well-developed securities markets and exchanges that may be substantially less liquid than those of more developed markets. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, and governments of developing or emerging market countries may also be more unstable than the governments of more developed countries. Such countries’ economies may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries also may be subject to social, political or economic instability. The value of developing or emerging market countries’ currencies may fluctuate more than the currencies of countries with more mature markets. Investments in developing or emerging market countries may be subject to greater risks of government restrictions, including confiscatory taxation, expropriation or nationalization of a company’s assets, restrictions on foreign ownership of local companies, restrictions on withdrawing assets from the country, protectionist measures, and practices such as share blocking. In addition, the ability of foreign entities to participate in privatization programs of certain developing or emerging market countries may be limited by local law. Investments in securities of issuers in developing or emerging market countries may be considered speculative.

Frontier Market Risk. The risks associated with investments in frontier market countries include all the risks associated with investments in developing and emerging markets; however, these risks are magnified for frontier market countries. As a result, investments in companies in frontier market countries are generally subject to a higher risk of loss than investments in companies in traditional emerging and developing market countries due to less developed securities markets, different settlement procedures, greater price volatility, less developed governments and economies, more government restrictions, and the limited ability of foreign entities to participate in certain privatization programs. Investments in companies operating in frontier market countries are highly speculative in nature.

Eurozone Investment Risks . Certain of the regions in which the Fund may invest, including the European Union (EU), currently experience significant financial difficulties. Following the global economic crisis that began in 2008, some of these countries have depended on, and may continue to be dependent on, the assistance from others such as the European Central Bank (ECB) or other governments or institutions, and failure to implement reforms as a condition of assistance could have a significant adverse effect on the value of investments in those and other European countries. In addition, countries that have adopted the euro are subject to fiscal and monetary controls that could limit the ability to implement their own economic policies, and could voluntarily abandon, or be forced out of, the euro. Such events could impact the market values of Eurozone and

various other securities and currencies, cause redenomination of certain securities into less valuable local currencies, and create more volatile and illiquid markets. Additionally, the United Kingdom’s intended departure from the EU, commonly known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the United Kingdom.

Risks of Investing in China A Shares. Investments in Class A Shares of Chinese companies involve certain risks and special considerations not typically associated with investments in U.S. companies, such as greater government control over the economy, political and legal uncertainty, currency fluctuations or blockage, the risk that the Chinese government may decide not to continue to support economic reform programs and the risk of nationalization or expropriation of assets. Additionally, the Chinese securities markets are emerging markets subject to the special risks applicable to developing and emerging market countries described elsewhere in this prospectus.

Risks of Investing in the China Fund. The China Fund is not registered under the Investment Company Act of 1940. As an investor in the China Fund, the Fund does not have all of the protections offered to investors by the Investment Company Act of 1940. Pursuant to an exemptive order granted on October 31, 2017 to the China Fund by the SEC, the China Fund is required to comply with the substantive requirements of a number of provisions of the Investment Company Act and the regulations thereunder. Further, the China Fund may invest substantially all of its assets in a limited number of issuers or a single issuer. To the extent that it does so, the China Fund is more subject to the risks associated with and developments affecting such issuers than a fund that invests more widely.

Risks of Investing through Stock Connect. The Fund may invest directly in China A shares through Stock Connect, and will be subject to the following risks: sudden changes in quota limitations, application of trading suspensions, differences in trading days between the PRC and Stock Connect, operational risk, clearing and settlement risk and regulatory and taxation risk.

Risks of Growth Investing . If a growth company’s earnings or stock price fails to increase as anticipated, or if its business plans do not produce the expected results, its securities may decline sharply. Growth companies may be newer or smaller companies that may experience greater stock price fluctuations and risks of loss than larger, more established companies. Newer growth companies tend to retain a large part of their earnings for research, development or investments in capital assets. Therefore, they may not pay any dividends for some time. Growth investing has gone in and out of favor during past market cycles and is likely to continue to do so. During periods when growth investing is out of favor or when markets are unstable, it may be more difficult to sell growth company securities at an acceptable price. Growth stocks may also be more volatile than other securities because of investor speculation.

Risks of Small- and Mid-Cap Companies . Small-cap companies may be either established or newer companies, including “unseasoned” companies that have typically been in operation for less than three years. Mid-cap companies are generally companies that have completed their initial start-up cycle, and in many cases have established markets and developed seasoned market teams. While smaller companies might offer greater opportunities for gain than larger companies, they also may involve greater risk of loss. They may be more sensitive to changes in a company’s earnings expectations and may experience more abrupt and erratic price movements. Small- and mid-cap companies’ securities may trade in lower volumes and it might be harder for the Fund to dispose of its holdings at an acceptable price when it wants to sell them. Small- and mid-cap companies may not have established markets for their products or services and may have fewer customers and product lines. They may have more limited access to financial resources and may not have the financial strength to sustain them through business downturns or adverse market conditions.

Since small- and mid-cap companies typically reinvest a high proportion of their earnings in their business, they may not pay dividends for some time, particularly if they are newer companies. Small- and mid-cap companies may have unseasoned management or less depth in management skill than larger, more established companies. They may be more reliant on the efforts of particular members of their management team and management changes may pose a greater risk to the success of the business. It may take a substantial period of time before the Fund realizes a gain on an investment in a small- or mid-cap company, if it realizes any gain at all.

Performance Information

The bar chart and performance table provide an indication of the risks of investing in the Fund. The Fund has adopted the performance of the Oppenheimer Emerging Markets Innovators Fund (the predecessor fund) as the result of a reorganization of the predecessor fund into the Fund, which was consummated after the close of business on May 24, 2019 (the “Reorganization”). Prior to the Reorganization, the Fund had not yet commenced operations. The bar chart shows changes in the performance of the predecessor fund from year to year as of December 31. The performance table compares the predecessor fund’s performance to that of a broad-based securities market benchmark. For more information on the benchmark used see the “Benchmark Descriptions” section of the prospectus. The Fund’s (and the predecessor fund’s) past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Class R6 shares’ returns shown for periods ending on or prior to May 24, 2019 are those of the Class I shares of the predecessor fund. Class I shares of the predecessor fund were reorganized into Class R6 shares of the Fund after the close of business on May 24, 2019. Class R6 shares’ returns of the Fund will be different from Class I shares’ returns of the predecessor fund as they have different expenses.

Class R5 shares of the Fund have less than a calendar year of performance; therefore, the returns shown are those of the Fund’s and predecessor fund’s Class A shares. Although the Class R5 shares are invested in the same portfolio of securities, Class R5 shares’ returns of the Fund will be different from Class A returns of the Fund and predecessor fund as they have different expenses.

Updated performance information is available on the Fund’s website at www.invesco.com/us.

Annual Total Returns

Class R6 shares year-to-date (ended March 31, 2019): 14.08%

Best Quarter (ended March 31, 2017): 12.86%

Worst Quarter (ended September 30, 2015): -14.97%

Average Annual Total Returns (for the periods ended December 31, 2018)
		1 Year					Since Inception
Class R6 shares: Inception (6/30/2014)
Return Before Taxes				-22.18	%				-1.92	%
Return After Taxes on Distributions				-22.18					-2.00
Return After Taxes on Distributions and Sale of Fund Shares				-13.13					-1.48
Class R5 shares 1 : Inception (5/24/2019)				-22.44					-2.36
MSCI Emerging Markets Mid Cap Index (Net) (reflects reinvested dividends net of withholding taxes, but reflects no deductions for fees, expenses or other taxes) (6/30/2014)				-13.12					-0.49

1	Class R5 shares’ performance prior to the inception date is that of the predecessor fund’s Class A shares at net asset value (NAV) and includes the 12b-1 fees applicable to Class A

shares. Class A shares’ performance reflects any applicable fee waivers and/or expense reimbursements. The inception date of the predecessor fund’s Class A shares is June 30, 2014.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-advantaged arrangements, such as 401(k) plans, 529 college savings plans or individual retirement accounts. After-tax returns are shown for Class R6 shares only and after-tax returns for other classes will vary.

Management of the Fund

Investment Adviser: Invesco Advisers, Inc.

Portfolio Managers		Title		Length of Service on the Fund
Heidi Heikenfeld, CFA		Portfolio Manager				2019 (predecessor fund 2014)
Justin Leverenz, CFA		Portfolio Manager				2019 (predecessor fund 2014)

Purchase and Sale of Fund Shares

You may purchase, redeem or exchange shares of the Fund on any business day through your financial adviser or by telephone at 800-959-4246.

There is no minimum initial investment for Employer Sponsored Retirement and Benefit Plans investing through a retirement platform that administers at least $2.5 billion in retirement plan assets. All other Employer Sponsored Retirement and Benefit Plans must meet a minimum initial investment of at least $1 million in each Fund in which it invests.

The minimum initial investment for all other institutional investors is $1 million, unless such investment is made by (i) an investment company, as defined under the Investment Company Act of 1940, as amended (1940 Act), that is part of a family of investment companies which own in the aggregate at least $100 million in securities, or (ii) an account established with a 529 college savings plan managed by Invesco, in which case there is no minimum initial investment.

There are no minimum investment amounts for Class R6 shares held through retail omnibus accounts maintained by an intermediary, such as a broker, that (i) generally charges an asset-based fee or commission in addition to those described in this prospectus, and (ii) maintains Class R6 shares and makes them available to retail investors.

Tax Information

The Fund’s distributions generally are taxable to you as ordinary income, capital gains, or some combination of both, unless you are investing through a tax-advantaged arrangement, such as a 401(k) plan, 529 college savings plan or individual retirement account. Any distributions from a 401(k) plan or individual retirement account may be taxed as ordinary income when withdrawn from such plan or account.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase the Fund through a broker-dealer or other financial intermediary (such as a bank), the Fund’s distributor or 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 broker-dealer or other intermediary and your salesperson or financial adviser to recommend the Fund over another investment. Ask your salesperson or financial adviser or visit your financial intermediary’s Web site for more information.

Investment Objective(s), Strategies, Risks and Portfolio Holdings

Inve sco Oppenheimer Capital Income Fund

Objective(s), Principal Investment Strategies and Risks

The Fund’s investment objective is to seek total return. The Fund’s investment objective may be changed by the Board of Trustees (the Board) without shareholder approval.

The following strategies and types of investments are the ones that the Fund considers to be the most important in seeking to achieve its investment objective and the following risks are those the Fund expects its portfolio to be subject to as a whole.

Common Stock and Other Equity Investments. Equity securities include common stock, preferred stock, rights, warrants and certain securities that are convertible into common stock. Equity investments may be exchange-traded or over-the-counter securities.

The value of the Fund’s portfolio may be affected by changes in the stock markets. Stocks and other equity securities fluctuate in price in response to changes to equity markets in general. Stock markets may experience significant short-term volatility and may fall sharply at times. Adverse events in any part of the equity or fixed-income markets may have unexpected negative effects on other market segments. Different stock markets may behave differently from each other and U.S. stock markets may move in the opposite direction from one or more foreign stock markets.

The prices of equity securities generally do not all move in the same direction at the same time. A variety of factors can negatively affect the price of a particular company’s stock. These factors may include, but are not limited to: poor earnings reports, a loss of customers, litigation against the company, general unfavorable performance of the company’s sector or industry, or changes in government regulations affecting the company or its industry. To the extent that securities of a particular type are emphasized (for example foreign stocks, stocks of small- or mid-cap companies, growth or value stocks, or stocks of companies in a particular industry) their share values may fluctuate more in response to events affecting the market for that type of security.

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Common stock represents an ownership interest in a company. It ranks below preferred stock and debt securities in claims for dividends and in claims for assets of the issuer in a liquidation or bankruptcy.

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Preferred stock has a set dividend rate and ranks ahead of common stocks and behind debt securities in claims for dividends and for assets of the issuer in a liquidation or bankruptcy. The dividends on preferred stock may be cumulative (they remain a liability of the company until paid) or non-cumulative. The fixed dividend rate of preferred stocks may cause their prices to behave more like those of debt securities. If prevailing interest rates rise, the fixed dividend on preferred stock may be less attractive, which may cause the price of preferred stock to decline.

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Warrants are options to purchase equity securities at specific prices that are valid for a specific period of time. Their prices do not necessarily move parallel to the prices of the underlying securities, and can be more volatile than the price of the underlying securities. If the market price of the underlying security does not exceed the exercise price during the life of the warrant, the warrant will expire worthless and any amount paid for the warrant will be lost. The market for warrants may be very limited and it may be difficult to sell a warrant promptly at an acceptable price. Rights are similar to warrants, but normally have a short duration and are distributed directly by the issuer to its shareholders. Rights and warrants have no voting rights, receive no dividends and have no rights with respect to the assets of the issuer.

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Convertible securities can be converted into or exchanged for a set amount of common stock of an issuer within a particular period of

time at a specified price or according to a price formula. Convertible debt securities pay interest and convertible preferred stocks pay dividends until they mature or are converted, exchanged or redeemed. Some convertible debt securities may be considered “equity equivalents” because of the feature that makes them convertible into common stock. The conversion feature of convertible securities generally causes the market value of convertible securities to increase when the value of the underlying common stock increases, and to fall when the stock price falls. The market value of a convertible security reflects both its “investment value,” which is its expected income potential, and its “conversion value,” which is its anticipated market value if it were converted. If its conversion value exceeds its investment value, the security will generally behave more like an equity security, in which case its price will tend to fluctuate with the price of the underlying common stock or other security. If its investment value exceeds its conversion value, the security will generally behave more like a debt security, in which case the security’s price will likely increase when interest rates fall and decrease when interest rates rise. Convertible securities may offer the Fund the ability to participate in stock market movements while also seeking some current income. Convertible securities may provide more income than common stock but they generally provide less income than comparable non-convertible debt securities. Most convertible securities will vary, to some extent, with changes in the price of the underlying common stock and are therefore subject to the risks of that stock. In addition, convertible securities may be subject to the risk that the issuer will not be able to pay interest or dividends when due, and their market value may change based on changes in the issuer’s credit rating or the market’s perception of the issuer’s creditworthiness. However, credit ratings of convertible securities generally have less impact on the value of the securities than they do for non-convertible debt securities. Some convertible preferred stocks have a mandatory conversion feature or a call feature that allows the issuer to redeem the stock on or prior to a mandatory conversion date. Those features could diminish the potential for capital appreciation on the investment.

Small- and Mid-Cap Companies. Small-cap companies may be either established or newer companies, including “unseasoned” companies that typically have been in operation for less than three years. Mid-cap companies are generally companies that have completed their initial start-up cycle, and in many cases have established markets and developed seasoned market teams. While smaller companies might offer greater opportunities for gain than larger companies, they also may involve greater risk of loss. They may be more sensitive to changes in a company’s earnings expectations and may experience more abrupt and erratic price movements. Smaller companies’ securities often trade in lower volumes and in many instances, are traded over-the-counter or on a regional securities exchange, where the frequency and volume of trading is substantially less than is typical for securities of larger companies traded on national securities exchanges. Therefore, the securities of smaller companies may be subject to wider price fluctuations and it might be harder for the Fund to dispose of its holdings at an acceptable price when it wants to sell them. Small- and mid-cap companies may not have established markets for their products or services and may have fewer customers and product lines. They may have more limited access to financial resources and may not have the financial strength to sustain them through business downturns or adverse market conditions. Since small- and mid-cap companies typically reinvest a high proportion of their earnings in their business, they may not pay dividends for some time, particularly if they are newer companies. Smaller companies may have unseasoned management or less depth in management skill than larger, more established companies. They may be more reliant on the efforts of particular members of their management team and management changes may pose a greater risk to the success of the business. Securities of small, unseasoned companies may be particularly volatile, especially in the short term, and may have very limited

liquidity in a declining market. It may take a substantial period of time to realize a gain on an investment in a small- or mid-cap company, if any gain is realized at all.

The Fund measures the market capitalization of an issuer at the time of investment. Because the relative sizes of companies change over time as the securities market changes, the Fund’s definition of what is a “small-cap,” “mid-cap” or “large-cap” company may change over time as well. After the Fund buys the security of an individual company, that company may expand or contract and no longer fall within the designated capitalization range. Although the Fund is not required to sell the securities of companies whose market capitalizations have grown or decreased beyond the Fund’s capitalization-range definition, it might sell some of those holdings to try to adjust the dollar-weighted median capitalization of its portfolio. That might cause the Fund to realize capital gains on an investment and could increase taxable distributions to shareholders.

When the Fund invests in smaller company securities that might trade infrequently, investors might seek to trade Fund shares based on their knowledge or understanding of the value of those securities (this is sometimes referred to as “price arbitrage”). If such price arbitrage were successful, it might interfere with the efficient management of the Fund’s portfolio and the Fund may be required to sell securities at disadvantageous times or prices to satisfy the liquidity requirements created by that activity. Successful price arbitrage might also dilute the value of fund shares held by other shareholders.

Debt Securities. The Fund may invest in debt securities, including: securities issued or guaranteed by the U.S. government or its agencies and instrumentalities; or foreign sovereigns; and foreign and domestic corporate bonds, notes and debentures. The Fund may select debt securities for their income possibilities, capital appreciation or to help cushion fluctuations in the value of its portfolio. Debt securities may be subject to the following risks:

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Interest Rate Risk. Interest rate risk is the risk that rising interest rates, or an expectation of rising interest rates in the near future, will cause the values of the Fund’s investments in debt securities to decline. The values of debt securities usually change when prevailing interest rates change. When interest rates rise, the values of outstanding debt securities generally fall, and those securities may sell at a discount from their face amount. Additionally, when interest rates rise, the decrease in values of outstanding debt securities may not be offset by higher income from new investments. When interest rates fall, the values of already-issued debt securities generally rise and the Fund’s investments in new securities may be at lower yields and may reduce the Fund’s income. The values of longer-term debt securities usually change more than the values of shorter-term debt securities when interest rates change; thus, interest rate risk is usually greater for securities with longer maturities or durations. “Zero-coupon” or “stripped” securities may be particularly sensitive to interest rate changes. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are near historic lows. Interest rate changes may have different effects on the values of mortgage-related securities because of prepayment and extension risks.

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Duration Risk. Duration is a measure of the price sensitivity of a debt security or portfolio to interest rate changes. Duration risk is the risk that longer-duration debt securities are more volatile and thus more likely to decline in price, and to a greater extent, than shorter-duration debt securities, in a rising interest-rate environment. “Effective duration” attempts to measure the expected percentage change in the value of a bond or portfolio resulting from a change in prevailing interest rates. The change in the value of a bond or portfolio can be approximated by multiplying its duration by a change in interest rates. For example, if a bond has an effective duration of three years, a 1% increase in general interest rates would be expected to cause the bond’s value to decline about 3% while a 1% decrease in general interest rates would be expected to cause the bond’s value to increase

3%. The duration of a debt security may be equal to or shorter than the full maturity of a debt security.

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Credit Risk. Credit risk is the risk that the issuer of a security might not make interest and principal payments on the security as they become due. U.S. government securities generally have lower credit risks than securities issued by private issuers or certain foreign governments. If an issuer fails to pay interest, the Fund’s income might be reduced, and if an issuer fails to repay principal, the value of the security might fall and the Fund could lose the amount of its investment in the security. The extent of this risk varies based on the terms of the particular security and the financial condition of the issuer. A downgrade in an issuer’s credit rating or other adverse news about an issuer, for any reason, can reduce the market value of that issuer’s securities.

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Credit Spread Risk. Credit spread risk is the risk that credit spreads (i.e., the difference in yield between securities that is due to differences in their credit quality) may increase when the market expects lower-grade bonds to default more frequently. Widening credit spreads may quickly reduce the market values of the Fund’s lower-rated and unrated securities. Some unrated securities may not have an active trading market or may trade less actively than rated securities, which means that the Fund might have difficulty selling them promptly at an acceptable price.

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Extension Risk. Extension risk is the risk that, if interest rates rise rapidly, prepayments on certain debt securities may occur at a slower rate than expected, and the expected maturity of those securities could lengthen as a result. Securities that are subject to extension risk generally have a greater potential for loss when prevailing interest rates rise, which could cause their values to fall sharply. Extension risk is particularly prevalent for a callable security where an increase in interest rates could result in the issuer of that security choosing not to redeem the security as anticipated on the security’s call date. Such a decision by the issuer could have the effect of lengthening the debt security’s expected maturity, making it more vulnerable to interest rate risk and reducing its market value.

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Reinvestment Risk. Reinvestment risk is the risk that when interest rates fall, the Fund may be required to reinvest the proceeds from a security’s sale or redemption at a lower interest rate. Callable bonds are generally subject to greater reinvestment risk than non-callable bonds.

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Prepayment Risk. Certain fixed-income securities (in particular mortgage-related securities) are subject to the risk of unanticipated prepayment. Prepayment risk is the risk that, when interest rates fall, the issuer will redeem the security prior to the security’s expected maturity, or that borrowers will repay the loans that underlie these fixed-income securities more quickly than expected, thereby causing the issuer of the security to repay the principal prior to expected maturity. The Fund may need to reinvest the proceeds at a lower interest rate, reducing its income. Securities subject to prepayment risk generally offer less potential for gains when prevailing interest rates fall. If the Fund buys those securities at a premium, accelerated prepayments on those securities could cause the Fund to lose a portion of its principal investment. The impact of prepayments on the price of a security may be difficult to predict and may increase the security’s price volatility. Interest-only and principal-only securities are especially sensitive to interest rate changes, which can affect not only their prices but can also change the income flows and repayment assumptions about those investments.

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Event Risk. If an issuer of debt securities is the subject of a buyout, debt restructuring, merger or recapitalization that increases its debt load, it could interfere with its ability to make timely payments of interest and principal and cause the value of its debt securities to fall.

Fixed-Income Market Risks. The fixed-income securities market can be susceptible to unusual volatility and illiquidity. Volatility and illiquidity may be

more pronounced in the case of lower-rated and unrated securities. Liquidity can decline unpredictably in response to overall economic conditions or credit tightening. Increases in volatility and decreases in liquidity may be caused by a rise in interest rates (or the expectation of a rise in interest rates), which are near historic lows in the U.S. and in other countries. During times of reduced market liquidity, the Fund may not be able to readily sell bonds at the prices at which they are carried on the Fund’s books. If the Fund needed to sell large blocks of bonds to meet shareholder redemption requests or to raise cash, those sales could further reduce the bonds’ prices. An unexpected increase in Fund redemption requests (including requests from shareholders who may own a significant percentage of the Fund’s shares) which may be triggered by market turmoil or an increase in interest rates, as well as other adverse market and economic developments, could cause the Fund to sell its holdings at a loss or at undesirable prices and adversely affect the Fund’s share price and increase the Fund’s liquidity risk, Fund expenses and/or taxable distributions, if applicable. Similarly, the prices of the Fund’s holdings could be adversely affected if an investment account managed similarly to the Fund was to experience significant redemptions and that account was required to sell its holdings at an inopportune time. The liquidity of an issuer’s securities may decrease as a result of a decline in an issuer’s credit rating, the occurrence of an event that causes counterparties to avoid transacting with the issuer, or an increase in the issuer’s cash outflows, as well as other adverse market and economic developments. A lack of liquidity or other adverse credit market conditions may hamper the Fund’s ability to sell the debt securities in which it invests or to find and purchase suitable debt instruments.

Economic and other market developments can adversely affect fixed-income securities markets in the United States, Europe and elsewhere. At times, participants in debt securities markets may develop concerns about the ability of certain issuers of debt securities to make timely principal and interest payments, or they may develop concerns about the ability of financial institutions that make markets in certain debt securities to facilitate an orderly market. Those concerns may impact the market price or value of those debt securities and may cause increased volatility in those debt securities or debt securities markets, reducing the willingness of some lenders to extend credit, and making it more difficult for borrowers to obtain financing on attractive terms (or at all). Under some circumstances, as was the case during the latter half of 2008 and early 2009, those concerns could cause reduced liquidity in certain debt securities markets.

Following the financial crisis, the Federal Reserve sought to stabilize the economy by keeping the federal funds rate near zero percent. The Federal Reserve has also purchased large quantities of securities issued or guaranteed by the U.S. government, its agencies or instrumentalities, pursuant to its monetary stimulus program known as “quantitative easing.” As the Federal Reserve has completed the tapering of its securities purchases pursuant to quantitative easing, it has recently raised interest rates on multiple occasions, and continues to consider future raises to the federal funds rate, there is a risk that interest rates may rise and cause fixed-income investors to move out of fixed-income securities, which may also increase redemptions in fixed-income mutual funds.

In addition, although the fixed-income securities markets have grown significantly in the last few decades, regulations and business practices have led some financial intermediaries to curtail their capacity to engage in trading (i.e., “market making”) activities for certain debt securities. As a result, dealer inventories of fixed-income securities, which provide an indication of the ability of financial intermediaries to make markets in fixed-income securities, are near historic lows relative to market size. Because market makers help stabilize the market through their financial intermediary services, further reductions in dealer inventories could have the potential to decrease liquidity and increase volatility in the fixed-income securities markets.

Credit Quality. The Fund can invest in securities that are rated or unrated. “Investment-grade” securities are those rated within the four highest rating categories by nationally recognized statistical rating organizations such as

Moody’s Investors Service (Moody’s) or S&P Global Ratings (S&P) (or, in the case of unrated securities, determined by the investment adviser to be comparable to securities rated investment-grade). “Below-investment-grade” securities are those that are rated below those categories, which are also referred to as “junk bonds.” While securities rated within the fourth highest category by S&P (meaning BBB+, BBB or BBB-) or by Moody’s (meaning Baa1, Baa2 or Baa3) are considered “investment-grade,” they have some speculative characteristics. If two or more nationally recognized statistical rating organizations have assigned different ratings to a security, the investment adviser uses the highest rating assigned.

Credit ratings evaluate the expectation that scheduled interest and principal payments will be made in a timely manner. They do not reflect any judgment of market risk. Ratings and market value may change from time to time, positively or negatively, to reflect new developments regarding the issuer. Rating organizations might not change their credit rating of an issuer in a timely manner to reflect events that could affect the issuer’s ability to make timely payments on its obligations. In selecting securities for its portfolio and evaluating their income potential and credit risk, the Fund does not rely solely on ratings by rating organizations but evaluates business, economic and other factors affecting issuers as well. Many factors affect an issuer’s ability to make timely payments, and the credit risk of a particular security may change over time. The investment adviser also may use its own research and analysis to assess those risks. If a bond is insured, it will usually be rated by the rating organizations based on the financial strength of the insurer. The rating categories are described in an Appendix to the SAI.

Unrated Securities. Because the Fund purchases securities that are not rated by any nationally recognized statistical rating organization, the investment adviser may internally assign ratings to those securities, after assessing their credit quality and other factors, in categories similar to those of nationally recognized statistical rating organizations. There can be no assurance, nor is it intended, that the investment adviser’s credit analysis process is consistent or comparable with the credit analysis process used by a nationally recognized statistical rating organization. Unrated securities are considered “investment-grade” or “below-investment-grade” if judged by the investment adviser to be comparable to rated investment-grade or below-investment-grade securities. The investment adviser’s rating does not constitute a guarantee of the credit quality. In addition, some unrated securities may not have an active trading market or may trade less actively than rated securities, which means that the Fund might have difficulty selling them promptly at an acceptable price.

In evaluating the credit quality of a particular security, whether rated or unrated, the investment adviser will normally take into consideration a number of factors such as, if applicable, the financial resources of the issuer, the underlying source of funds for debt service on a security, the issuer’s sensitivity to economic conditions and trends, any operating history of the facility financed by the obligation, the degree of community support for the financed facility, the capabilities of the issuer’s management, and regulatory factors affecting the issuer or the particular facility.

A reduction in the rating of a security after the Fund buys it will not require the Fund to dispose of the security. However, the investment adviser will evaluate such downgraded securities to determine whether to keep them in the Fund’s portfolio.

Risks of Below-Investment-Grade Securities. Below-investment-grade securities (also referred to as “junk bonds”) generally have higher yields than investment-grade securities but also have higher risk profiles. Below-investment-grade securities are considered to be speculative and entail greater risk with respect to the ability of the issuer to timely repay principal and pay interest or dividends in accordance with the terms of the obligation and may have more credit risk than investment-grade securities, especially during times of weakening economic conditions or rising interest rates. These additional risks mean that the Fund may not receive the anticipated level of income from these securities, and the Fund’s net asset

value may be affected by declines in the value of below-investment-grade securities. The major risks of below-investment-grade securities include:

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Prices of below-investment-grade securities may be subject to extreme price fluctuations, even under normal market conditions. Adverse changes in an issuer’s industry and general economic conditions may have a greater impact on the prices of below-investment-grade securities than on the prices of investment-grade securities.

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Below-investment-grade securities may be issued by less creditworthy issuers and may be more likely to default than investment-grade securities. Issuers of below-investment-grade securities may have more outstanding debt relative to their assets than issuers of investment-grade securities. Issuers of below-investment-grade securities may be unable to meet their interest or principal payment obligations because of an economic downturn, specific issuer developments, or the unavailability of additional financing.

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In the event of an issuer’s bankruptcy, claims of other creditors may have priority over the claims of the holders of below-investment-grade securities.

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Below-investment-grade securities may be less liquid than investment-grade securities, even under normal market conditions. There are fewer dealers in the below-investment-grade securities market and there may be significant differences in the prices quoted by the dealers. Because they are less liquid, judgment may play a greater role in valuing certain of the Fund’s securities than is the case with securities trading in a more liquid market.

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Below-investment-grade securities typically contain redemption provisions that permit the issuer of the securities containing such provisions to redeem the securities at its discretion. If the issuer redeems below-investment-grade securities, the Fund may have to invest the proceeds in securities with lower yields and may lose income.

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Below-investment-grade securities markets may be more susceptible to real or perceived adverse credit, economic, or market conditions than investment-grade securities.

The Fund can invest up to 40% of its total assets in below-investment-grade securities. This restriction is applied at the time of purchase and the Fund may continue to hold a security whose credit rating has been downgraded or, in the case of an unrated security, after the Fund’s investment adviser has changed its assessment of the security’s credit quality. As a result, credit rating downgrades or other market fluctuations may cause the Fund’s holdings of below-investment-grade securities to exceed, at times significantly, this restriction for an extended period of time. Credit rating downgrades of a single issuer or related similar issuers whose securities the Fund holds in significant amounts could substantially and unexpectedly increase the Fund’s exposure to below-investment-grade securities and the risks associated with them, especially liquidity and default risk. If the Fund has more than 40% of its total assets invested in below-investment-grade securities, the investment adviser will not purchase additional below-investment-grade securities until the level of holdings in those securities no longer exceeds the restriction. Below-investment-grade securities are subject to greater credit risks than investment-grade securities.

Industry and Sector Focus. At times the Fund may increase the relative emphasis of its investments in a particular industry or sector. The prices of securities of issuers in a particular industry or sector may go up and down in response to changes in economic conditions, government regulations, availability of basic resources or supplies, or other events that affect that industry or sector more than others. To the extent that the Fund increases the relative emphasis of its investments in a particular industry or sector, its share values may fluctuate in response to events affecting that industry or sector. To some extent that risk may be limited by the Fund’s policy of not concentrating its investments in any one industry.

U.S. Government Securities. The Fund may invest in securities issued or guaranteed by the U.S. government or its agencies and instrumentalities. Some of those securities are directly issued by the U.S. Treasury and are backed by the full faith and credit of the U.S. government. “Full faith and

credit” means that the taxing power of the U.S. government is pledged to the payment of interest and repayment of principal on a security.

Some securities issued by U.S. government agencies, such as Government National Mortgage Association pass-through mortgage obligations (Ginnie Maes), are also backed by the full faith and credit of the U.S. government. Others are supported only by the credit of the agency that issued them (for example, obligations issued by the Federal Home Loan Banks, “Fannie Mae” bonds issued by the Federal National Mortgage Association and “Freddie Mac” obligations issued by the Federal Home Loan Mortgage Corporation). In September 2008, the Federal Housing Finance Agency placed the Federal National Mortgage Association and Federal Home Loan Mortgage Corporation into conservatorship.

Mortgage-Related Securities. The Fund can buy interests in pools of residential or commercial mortgages in the form of “pass-through” mortgage securities. They may be issued or guaranteed by the U.S. government, or its agencies and instrumentalities, or by private issuers, such as corporations, banks, savings and loans, mortgage bankers and other non-governmental issuers. Mortgage-related securities may be issued in different series, each having different interest rates and maturities. The prices and yields of mortgage-related securities are determined, in part, by assumptions about the rate of payments of the underlying mortgages and are subject to the risks of unanticipated prepayment and extension risks. Mortgage-backed securities are also subject to interest rate risk, and the market for mortgage-backed securities may be volatile at times and may be less liquid than the markets for other types of securities.

Mortgage-Related Government Securities. Mortgage-related securities that are U.S. government securities have collateral to secure payment of interest and principal. The collateral is either in the form of mortgage pass-through certificates issued or guaranteed by a U.S. agency or instrumentality or mortgage loans insured by a U.S. government agency.

Mortgage-Related Private Issuer Securities. Primarily these investments include multi-class debt or pass-through certificates secured by mortgage loans, which may be issued by private issuers. Private-issuer mortgage-backed securities may include loans on residential or commercial properties. Mortgage-related securities, including collateralized mortgage obligations (CMOs), issued by private issuers are not U.S. government securities, making them subject to greater credit risks than U.S. government securities. Private issuer securities are subject to the credit risks of both the issuers and the underlying borrowers, although in some cases they may be supported by insurance or guarantees.

Forward Rolls. The Fund can enter into “forward roll” transactions (also referred to as “mortgage dollar rolls”) with respect to mortgage-related securities. In this type of transaction, the Fund sells a mortgage-related security to a buyer and simultaneously agrees to repurchase a similar security at a later date at a set price. During the period between the sale and the repurchase, the Fund will not be entitled to receive interest and principal payments on the securities that have been sold. The Fund will bear the risk that the market value of the securities might decline below the price at which the Fund is obligated to repurchase them or that the counterparty might default in its obligations.

A substantial portion of the Fund’s assets may be subject to forward roll transactions at any given time.

Asset-Backed Securities. Asset-backed securities are fractional interests in pools of loans, receivables or other assets. They are issued by trusts or other special purpose vehicles and are collateralized by the loans, receivables or other assets that make up the pool. The trust or other issuer passes the income from the underlying asset pool to the investor.

Neither the Fund nor the investment adviser selects the loans, receivables or other assets that are included in the pools or the collateral backing those pools. Asset-backed securities are subject to interest rate risk and credit risk. These securities are subject to the risk of default by the issuer as well as by the borrowers of the underlying loans in the pool. Certain asset-backed securities are subject to prepayment and extension risks.

Zero-Coupon and Stripped Securities. Some of the debt securities the Fund may invest in are zero-coupon or stripped securities. They may be issued by the U.S. government or private issuers. Zero-coupon securities pay no interest prior to their maturity date or another specified date in the future but are issued at a discount from their face value. Stripped securities are the separate income or principal components of a debt security. One component might receive all the interest and the other all the principal payments. The securities that are entitled to only the principal payments may be sold at a substantial discount from the market value of the initial security.

Zero-coupon and stripped securities are particularly sensitive to changes in interest rates and may be subject to greater price fluctuations as a result of interest rate changes than interest bearing securities. The Fund may be required to pay a dividend of the imputed income on a zero-coupon or principal-only security at a time when it has not actually received the income. The values of interest-only and principal-only securities are also very sensitive to prepayments of underlying obligations. When prepayments tend to fall, the timing of the cash flows to principal-only securities increases, making them more sensitive to interest rates. The market for zero-coupon and stripped securities may be limited, making it difficult for the Fund to value them or dispose of its holdings quickly at an acceptable price.

Stapled Securities. The Fund may invest in stapled securities to gain exposure to infrastructure companies. A stapled security is comprised of two parts that cannot be separated from one another: a unit of a trust and a share of a company. The resulting security is influenced by both parts, and must be treated as one unit at all times, such as when buying or selling a security. The value of stapled securities and the income derived from them may be volatile. The listing of stapled securities on a domestic or foreign exchange does not guarantee a liquid market for stapled securities.

Special Considerations of Senior Loans and Other Loans. The Fund may invest in loans, and in particular, in floating rate loans (sometimes referred to as “adjustable rate loans”) that hold (or in the judgment of the investment adviser, hold) a senior position in the capital structure of U.S. and foreign corporations, partnerships or other business entities that, under normal circumstances, allow them to have priority of claim ahead of (or at least as high as) other obligations of a borrower in the event of liquidation. These investments are referred to as “Senior Loans.”

Senior loans typically have higher recoveries than other debt obligations that rank lower in the priority of payments for a particular debtor, because in most instances they take preference over those subordinated debt obligations, with respect to payment of interest and principal, and over stock. However, the Fund is still subject to the risk that the borrower under a loan will default on scheduled interest or principal payments and that the assets of the borrower to which the Fund has recourse will be insufficient to satisfy in full the payment obligations that the borrower has to the Fund. The risk of default will increase in the event of an economic downturn or, in the case of a floating rate loan, a substantial increase in interest rates (because the cost of the borrower’s debt service will increase as the interest rate on its loan is upwardly adjusted). The Fund may own a debt obligation of a borrower that becomes, or is about to become, insolvent. The Fund can also purchase debt obligations that are extended to a bankrupt entity (so called debtor-in-possession or ‘DIP’ financing) or debt obligations that are issued in connection with a restructuring of the borrower under bankruptcy laws.

In certain circumstances, loans may not be deemed to be securities, and in the event of fraud or misrepresentation by a borrower or an arranger, lenders will not have the protection of the anti-fraud provisions of the federal securities laws, as would be the case for bonds or stocks. Instead, in such cases, lenders generally rely on the contractual provisions in the loan agreement itself, and common-law fraud protections under applicable state law.

How the Fund Invests in Loans. The Fund may invest in loans in one or more of three ways: the Fund may invest directly in a loan by acting as an original lender; the Fund may invest directly in a loan by purchasing a loan by an assignment; or the Fund may invest indirectly in a loan by pur-

chasing a participation interest in a loan. The Fund may also gain exposure to loans indirectly using certain derivative instruments, which is described elsewhere in this prospectus.

Original Lender. The Fund can invest in loans, generally “at par” (a price for the loan equal approximately to 100% of the funded principal amount of the loan, minus any original issue discount) as an original lender. When the Fund is an original lender, it is entitled to receive a return at the full interest rate for the loan.

Loan Assignments. The Fund may also purchase a loan by assignment. In a loan assignment, the Fund typically succeeds to the rights and obligations of the assigning lender under the loan agreement and becomes a “lender” under the loan agreement, entitled to the same rights (including, but not limited to, enforcement or set-off rights) that are available to lenders generally. When the Fund buys an assignment, it may be required to pay a fee, or cede a portion of the interest and fees that accrued prior to settlement of the assignment, to the lender selling the assignment. Occasionally, the selling lender pays a fee to the assignee. If the Fund assigns a loan, it may be required to pass along to a buyer a portion of any interest and fees that the Fund would otherwise be entitled to. In addition, the Fund may be required to pay a transfer fee to the lending agent.

Participation Interests. The Fund may invest in participation interests in loans. Participation interests represent an undivided fractional interest in a loan. They are typically purchased from banks or dealers that have made the loan or have become members of the loan syndicate by purchasing the loan by assignment. When the Fund invests in a loan via a participation, the participation seller remains the lender of record under the loan agreement, and the Fund typically becomes the beneficial owner of the loan, and is entitled to receive from the participation seller any payments or other property or distributions received by the participation seller from or on behalf of the borrower of the loan. When the Fund buys a participation, it may be required to pay a fee, or cede a portion of the interest and fees that accrued prior to settlement of the participation, to the lender selling the participation. Occasionally, the selling lender pays a fee to the participant. If the Fund sells a participation, it may be required to pass along to a buyer a portion of any interest and fees that the Fund would otherwise be entitled to.

Recourse. When the Fund invests in loans as an original lender it will have direct recourse against the borrower in the event of a failure to pay scheduled principal or interest. When it purchases a loan by assignment, it typically succeeds to whatever rights the assigning lender had under the loan agreement, and will therefore be entitled to the same rights (including, but not limited to, enforcement or set-off rights) that are available to lenders generally. When the Fund buys a participation interest, it assumes the credit risk of the borrower and the counterparty risk of the lender selling the participation interest (and, in certain circumstances, such lender’s credit risk), and the terms of the participation may not entitle the Fund to all rights of a direct lender under the loan (for example, with respect to consent, voting or enforcement rights). Therefore, the Fund’s rights under a participation interest for a particular loan may be more limited than the rights of the original lender or an investor who acquires an assignment of that loan. Where the Fund invests in a loan via a participation, the Fund generally will have no right of direct recourse against the borrower or ability to otherwise directly enforce the terms of the loan agreement.

Investments in Pooled Investment Entities that Invest in Loans. The Fund can also buy interests in trusts and other pooled entities (including other investment companies) that invest primarily or exclusively in loan obligations, including entities sponsored or advised by the Adviser or an affiliate. The Fund will be subject to the pooled entity’s credit risks as well as the credit risks of the underlying loans. The loans underlying these investments may include loans to foreign or U.S. borrowers, may be collateralized or uncollateralized and may be rated investment-grade or below-investment-grade or may be unrated. These investments are subject to the risk of default by the borrower, interest rate and prepayment risk, as well as credit risks of the pooled entity that holds the loan obligations.

Interest Rates and Floating or Adjustable Rate Loans. The loans in which the Fund invests typically have floating or adjustable interest rates. For that reason, the Adviser expects that when interest rates change, the values of these floating rate loans will fluctuate less than the values of fixed-rate debt securities, and that the net asset values of the Fund’s shares will fluctuate less than the shares of funds that invest mainly in fixed-rate debt obligations. However, the interest rates of some floating rate loans adjust only periodically. Between the times that interest rates on floating rate loans adjust (which is most often quarterly, but may be monthly, every six months, or some other period), the interest rates on those floating rate loans may not correlate to prevailing interest rates. That will affect the value of the loans and may cause the net asset values of the Fund’s shares to fluctuate.

The base rate usually is a benchmark that “floats” or changes to reflect current interest rates, such as the prime rate offered by one or more major U.S. banks (referred to as the “Prime Rate”).

The applicable rate is defined in the loan agreement. Borrowers tend to select the base lending rate that results in the lowest interest cost, and the benchmark selected by a borrower for its loans may change from time to time (but the benchmark selected for a particular loan will remain the same for the life of that loan). If the benchmark interest rate on a floating rate loan changes, the rate payable to lenders under the floating rate loan will, in turn, change at the next scheduled adjustment date. If the benchmark rate increases, the Fund would earn interest at a higher rate on that floating rate loan after the next scheduled adjustment date. If the benchmark rate decreases, the Fund would earn interest at a lower rate on that floating rate loan after the next scheduled adjustment date.

The Fund may use interest rate swap agreements and other hedging practices to mitigate fluctuations in value when the interest rate under the loan is periodically reset.

The Fund may invest in loans having a fixed rate of interest; however, it is unlikely to do so because fixed rate loans are uncommon in the loan market generally.

Prepayment. The Fund has no limits as to the maturity of loans it may purchase. Senior Loans in general have a stated term of between five and seven years, and other types of loans in which the Fund may invest may have shorter or longer maturities. Notwithstanding their stated maturity, loans may be prepaid prior to their stated terms for reasons including, but not limited to, high market demand for loans, refinancing by the borrower, mandatory prepayment requirements or desire of the borrower to repay outstanding debt. If a borrower prepays a loan, the Fund will have to reinvest the proceeds in other loans or financial assets that may pay lower rates of return. However, any prepayment and facility fees the Fund receives may help reduce any adverse impact on the Fund’s yield. Because the interest rates on floating rate loans adjust periodically, the Adviser believes that the Fund should generally be able to reinvest prepayments in floating rate loans that have yields similar to those that have been prepaid.

Subordination. Senior loans typically hold the most senior position in a borrower’s capital structure. They may include loans that hold the most senior position alone, loans that hold an equal ranking with other senior debt, or loans that are, in the judgment of the Adviser, in the category of senior debt of the borrower. Borrowers typically are required contractually to pay the holders of senior loans before they pay the holders of subordinated debt and preferred or common shareholders and give the holders of senior secured loans a claim on some or all of the borrower’s assets that is senior to that of subordinated debt, preferred stock and common stock of the borrower in the event that the borrower defaults or becomes bankrupt. Senior loans are subject to the risk that a court could subordinate a senior loan to presently existing or future indebtedness or take other action detrimental to the holders of senior loans.

That senior position in the borrower’s capital structure typically gives the holders of senior loans a claim on some or all of the borrower’s assets that is senior to that of subordinated debt, preferred stock and common stock of the borrower in the event that the borrower defaults or becomes bankrupt.

This means in the event the assets of the borrower are insufficient in value to satisfy all its creditors, senior debt will be satisfied in priority to debt that is subordinate to senior debt.

Lien Position. Loans that are collateralized may have multiple lenders or other creditors that take different lien positions. While second lien loan positions generally are subject to similar risks as those associated with investments in first lien loan positions, second lien loan positions have the additional risk that if the borrower defaults on its obligations under the loan and the loan creditors enforce their security interest or if the borrower becomes bankrupt, the secured claims of the creditors in the first lien position will be satisfied prior to the secured claims of the creditors in the second lien position. If the cash flow and assets of the borrower are insufficient to satisfy both the first lien loans and the second lien loans in full, the creditors in the second lien position may not be satisfied in full. If a loan has first and second lien positions, typically the Fund will invest in the first lien position; however, it may invest in the second lien position. Second lien positions generally pay a higher margin than first lien positions to compensate second lien creditors for the greater risk they assume.

Collateral. Loans may be fully collateralized with one or more of (1) working capital assets, such as accounts receivable and inventory, (2) tangible fixed assets, such as real property, buildings and equipment, (3) intangible assets such as trademarks or patents, or (4) shares of stock of the borrower or its subsidiaries or affiliates. A loan agreement may or may not require the borrower to pledge additional collateral to secure a loan if the value of the initial collateral declines, or if additional assets are acquired by the borrower. Collateral may consist of assets that may not be readily liquidated, and there is no assurance that the liquidation of those assets would satisfy a borrower’s obligations under a loan in full. A borrower’s subsidiaries, affiliates, shareholders or owners may provide collateral in the form of secured guarantees and/or security interests in assets that they own. However, the value of the collateral may decline after the Fund invests in the loan, particularly if the collateral consists of equity securities of the borrower or its subsidiaries or affiliates.

If a borrower defaults, insolvency laws may limit the Fund’s access to the collateral, or the lenders may be unable to liquidate the collateral. A bankruptcy court might find that the lenders’ security interest or their enforcement of their security under the loan to be invalid, or a bankruptcy court may require the borrower to use the collateral to pay other outstanding obligations prior to satisfying the lenders in full. If the collateral consists of stock of the borrower or its subsidiaries, the stock may lose all of its value in the event of a bankruptcy, which would leave the Fund exposed to greater potential loss. In addition, in the event of a borrower default on a collateralized loan, the Fund may receive assets other than cash or securities in full or partial satisfaction of the borrower’s obligation under the loan. Those assets may be illiquid, and the Fund might not be able to realize the benefit of the assets for legal, practical or other reasons. The Fund might hold those assets until the Adviser determines it is appropriate to dispose of them. If the collateral becomes illiquid or loses some or all of its value, the collateral may not be sufficient in value to compensate the Fund in full in the event of a default of scheduled interest or principal payments.

The Fund can invest in loans that are not secured by any specific collateral of the borrower. If the borrower is unable to pay interest or defaults in the payment of principal, there will be no collateral on which the Fund can foreclose. Therefore, these loans present greater risks than collateralized loans because the recourse of the Fund to the borrower’s assets in the case of a default would be as a general unsecured creditor.

Highly Leveraged Transactions and Insolvent Borrowers. The Fund can invest in loans made in connection with highly leveraged transactions. These transactions may include operating loans, leveraged buyout loans, leveraged capitalization loans and other types of acquisition financing. Those loans are subject to greater credit risks than other loans. Highly leveraged loans and loans in default also may be less liquid than other

loans. If the Fund voluntarily or involuntarily sold those types of loans, it might not receive the full value it expected.

The Fund can also invest in loans of borrowers that are experiencing, or are likely to experience, financial difficulty. In addition, the Fund can invest in loans of borrowers that have filed for bankruptcy protection or that have had involuntary bankruptcy petitions filed against them by creditors. Various laws enacted for the protection of debtors may apply to loans. A bankruptcy proceeding against a borrower could delay or limit the ability of the Fund to collect the principal and interest payments on that borrower’s loans. If a lawsuit is brought by creditors of a borrower under a loan, a court or a trustee in bankruptcy could take certain actions that would be adverse to the Fund.

Restrictive Loan Covenants. Borrowers must comply with various restrictive covenants typically contained in loan agreements. They may include restrictions on dividend payments and other distributions to stockholders, provisions requiring the borrower to maintain specific financial ratios, and limits on total debt. They may include requirements that the borrower prepay the loan with any free cash flow. A break of a covenant that is not waived by the agent bank (or the lenders) is normally an event of default that provides the agent bank or the lenders the right to call the outstanding amount on the loan. If a lender accelerates the repayment of a loan because of the borrower’s violation of a restrictive covenant under the loan agreement, the borrower might default in payment of the loan.

Limited Secondary Market for Loans. Due to restrictions on transfers in loan agreements and the nature of the private syndication of loans, some loans are not as easily purchased or sold as publicly-traded securities. As a result, some loans are illiquid, which means that the Fund may be limited in its ability to sell those loans at an acceptable price when it wants to in order to generate cash, avoid losses or to meet repurchase requests. The market for illiquid financial assets is more volatile than the market for liquid securities and it may be more difficult to obtain accurate valuations for the Fund’s investments.

Possible Limited Availability of Loans. Direct investments in loans and, to a lesser degree, investments in participation interests in or assignments of loans may be limited. The limited availability may be due to a number of factors. Direct lenders may allocate only a small number of loans to new investors, including the Fund. There may be fewer loans available for investment that meet the Fund’s credit standards, particularly in times of economic downturns. Also, lenders or agents may have an incentive to market the less desirable loans to investors such as the Fund while retaining attractive loans for themselves. This would reduce the amount of attractive investments for the Fund. If market demand for loans increases, the interest paid by loans that the Fund holds may decrease.

Delayed Settlement. Compared to securities and to certain other types of financial assets, purchases and sales of loans take relatively longer to settle. This is partly due to the nature of loans, which require a written assignment agreement and various ancillary documents for each transfer, and frequently require discretionary consents from both the borrower and the administrative agent. In addition, dealers frequently insist on matching their purchases and sales, which can lead to delays in the Fund’s settlement of a purchase or sale in circumstances where the dealer’s corresponding transaction with another party is delayed. Dealers will also sometimes sell loans short, and hold their trades open for an indefinite period while waiting for a price movement or looking for inventory to purchase. This extended settlement process can (i) increase the counterparty credit risk borne by the Fund; (ii) leave the Fund unable to timely vote, or otherwise act with respect to, loans it has agreed to purchase; (iii) delay the Fund from realizing the proceeds of a sale of a loan; (iv) inhibit the Fund’s ability to re-sell a loan that it has agreed to purchase if conditions change (leaving the Fund more exposed to price fluctuations); (v) prevent the Fund from timely collecting principal and interest payments; and (vi) expose the Fund to adverse tax or regulatory consequences. To the extent the extended loan settlement process gives rise to short-term liquidity needs, such as the need to satisfy redemption requests, the Fund may hold cash,

sell investments or temporarily borrow from banks or other lenders. If the Fund undertakes such measures, the Fund’s ability to pay redemption proceeds in a timely manner, as well as the Fund’s performance, may be adversely affected.

Credit Quality Standards for Loans. Rating organizations, such as S&P or Moody’s, rate debt obligations by rating the issuer, after evaluating the issuer’s financial soundness. Generally, the lower the investment rating, the more risky the investment. Debt securities rated below “BBB-” by S&P or “Baa3” by Moody’s are commonly referred to as “high risk” securities or, in the case of bonds, “junk bonds.” Loans rated “B” are below investment grade and are regarded by rating organizations as predominantly speculative with respect to the borrower’s ability to repay interest and principal when due over a long period. While securities rated Baa by Moody’s or BBB by S&P are considered to be “investment grade,” they have some speculative characteristics. The Fund may invest in loans that are rated both investment grade and below-investment grade by different rating organizations. An appendix to the Fund’s SAI includes the definitions of the rating categories of the principal rating organizations.

Many loans are not rated by rating organizations. The lack of a rating does not necessarily imply that a loan is of lesser investment quality.

While the Fund expects to have access to financial and other information regarding the borrower that has been made available to the lenders under a loan, it may not have such information in connection with participation interests and certain loan assignments. Additionally, the amount of public information available with respect to loans generally will be less extensive than what is available for exchange-listed or otherwise registered securities.

The Adviser will normally seek to avoid receiving material, non-public information about the issuers of loans being considered for acquisition by the Fund or held in the Fund’s portfolio. The Adviser’s decision not to receive material, non-public information under normal circumstances may place the Fund at a disadvantage relative to other investors in loans, and could adversely affect the Fund’s investment performance. In certain cases, the Adviser may nevertheless receive material, non-public information regarding loans, and its ability to trade in such loans for the account of the Fund could potentially be limited by its possession of such information. Such limitations on the Adviser’s ability to trade could have an adverse effect on the Fund by, for example, preventing the Fund from selling a loan that is experiencing a material decline in value. In some instances, these trading restrictions could continue in effect for a substantial period of time.

Foreign Investing. The Fund can buy securities issued by companies or governments in any country, including in developing or emerging market countries.

Risks of Foreign Investing. Securities traded in foreign markets often involve special risks not present in U.S. investments that can increase the chances the Fund will lose money. Additional information regarding certain of the risks associated with foreign investing is provided below.

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Foreign Market Risk. If there are fewer investors in a particular foreign market, securities traded in that market may be less liquid and more volatile than U.S. securities and more difficult to price. Foreign markets may also be subject to delays in the settlement of transactions and difficulties in pricing securities. If the Fund is delayed in settling a purchase or sale transaction, it may not receive any return on the invested assets or it may lose money if the value of the security declines. It may also be more expensive for the Fund to buy or sell securities in certain foreign markets than in the United States, which may increase the Fund’s expense ratio.

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Foreign Economy Risk. Foreign economies may be more vulnerable to political or economic changes than the U.S. economy. They may be more concentrated in particular industries or may rely on particular resources or trading partners to a greater extent. Certain foreign economies may be adversely affected by shortages of investment capital or by high rates of inflation. Changes in economic or monetary

policy in the U.S. or abroad may also have a greater impact on the economies of certain foreign countries.

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Foreign Governmental and Regulatory Risks. Foreign companies may not be subject to the same accounting and disclosure requirements as U.S. companies. As a result there may be less accurate information available regarding a foreign company’s operations and financial condition. Foreign companies may be subject to capital controls, nationalization, or confiscatory taxes. There may be less government regulation of foreign issuers, exchanges and brokers than in the United States. Some countries also have restrictions that limit foreign ownership and may impose penalties for increases in the value of the Fund’s investment. The value of the Fund’s foreign investments may be affected if it experiences difficulties in enforcing legal judgments in foreign courts.

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Foreign Currency Risk. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of securities denominated in that foreign currency. If the U.S. dollar rises in value against a foreign currency, a security denominated in that currency will be worth less in U.S. dollars and if the U.S. dollar decreases in value against a foreign currency, a security denominated in that currency will be worth more in U.S. dollars. The dollar value of foreign investments may also be affected by exchange controls. Foreign currency exchange transactions may impose additional costs on the Fund. The Fund can also invest in derivative instruments linked to foreign currencies. The change in value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of derivatives linked to that foreign currency. The investment adviser’s selection of foreign currency denominated investments may not perform as expected. Currency derivative investments may be particularly volatile and subject to greater risks than other types of foreign-currency denominated investments.

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Foreign Custody Risk. There may be very limited regulatory oversight of certain foreign banks or securities depositories that hold foreign securities and foreign currency and the laws of certain countries may limit the ability to recover such assets if a foreign bank or depository or their agents goes bankrupt. There may also be an increased risk of loss of portfolio securities.

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Time Zone Arbitrage. If the Fund invests a significant amount of its assets in foreign securities, it may be exposed to “time-zone arbitrage” attempts by investors seeking to take advantage of differences in the values of foreign securities that might result from events that occur after the close of the foreign securities market on which a security is traded and before the close of the New York Stock Exchange that day, when the Fund’s net asset value is calculated. If such time zone arbitrage were successful, it might dilute the interests of other shareholders. However, the Fund’s use of “fair value pricing” under certain circumstances, to adjust the closing market prices of foreign securities to reflect what the investment adviser and the Board believe to be their fair value, may help deter those activities.

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Globalization Risks. The growing inter-relationship of global economies and financial markets has increased the effect of conditions in one country or region on issuers of securities in a different country or region. In particular, the adoption or prolongation of protectionist trade policies by one or more countries, changes in economic or monetary policy in the United States or abroad, or a slowdown in the U.S. economy, could lead to a decrease in demand for products and reduced flows of capital and income to companies in other countries.

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Regional Focus. At times, the Fund might increase the relative emphasis of its investments in a particular region of the world. Securities of issuers in a region might be affected by changes in economic conditions or by changes in government regulations, availability of basic resources or supplies, or other events that affect that region more than others. If the Fund has a greater emphasis on investments in a particular region, it may be subject to greater risks from adverse

events that occur in that region than a fund that invests in a different region or that is more geographically diversified. Political, social or economic disruptions in the region may adversely affect the values of the Fund’s holdings.

Risks of Developing and Emerging Markets. Investments in developing and emerging market countries are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Investments in securities of issuers in developing or emerging market countries may be considered speculative. Additional information regarding certain of the risks associated with investing in developing and emerging markets is provided below.

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Less Developed Securities Markets. Developing or emerging market countries may have less well-developed securities markets and exchanges. Consequently they have lower trading volume than the securities markets of more developed countries and may be substantially less liquid than those of more developed countries.

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Transaction Settlement. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. As a result there could be subsequent declines in the value of the portfolio security, a decrease in the level of liquidity of the portfolio or, if there is a contract to sell the security, a possible liability to the purchaser.

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Price Volatility. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, which may lead to greater difficulties in pricing securities.

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Less Developed Governments and Economies. The governments of developing or emerging market countries may be more unstable than the governments of more developed countries. In addition, the economies of developing or emerging market countries may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries may be subject to social, political, or economic instability. Further, the value of the currency of a developing or emerging market country may fluctuate more than the currencies of countries with more mature markets.

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Government Restrictions. In certain developing or emerging market countries, government approval may be required for the repatriation of investment income, capital or the proceeds of sales of securities by foreign investors. Other government restrictions may include confiscatory taxation, expropriation or nationalization of company assets, restrictions on foreign ownership of local companies, protectionist measures, and practices such as share blocking.

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Privatization Programs. The governments in some developing or emerging market countries have been engaged in programs to sell all or part of their interests in government-owned or controlled enterprises. However, in certain developing or emerging market countries, the ability of foreign entities to participate in privatization programs may be limited by local law. There can be no assurance that privatization programs will be successful.

Eurozone Investment Risks. The European Union (EU) is an economic and political union of most western European countries and a growing number of eastern European countries, collectively known as “member states.” One of the key mandates of the EU is the establishment and administration of a common single market, consisting of, among other things, a single currency and a common trade policy. In order to pursue this goal, member states established the Economic and Monetary Union (EMU), which sets out different stages and commitments that member states need to follow to achieve greater economic and monetary policy coordination, including the adoption of a single currency, the euro. Many member states have adopted the euro as their currency and, as a result, are subject to the monetary policies of the European Central Bank (ECB).

The global economic crisis that began in 2008 has caused severe financial difficulties for many EU member states, pushing some to the brink of insolvency and causing others to experience recession, large public debt, restructuring of government debt, credit rating downgrades and an overall weakening of banking and financial sectors. Some of those countries have depended on, and may continue to be dependent on, the assistance from others such as the ECB, the International Monetary Fund (IMF), or other governments and institutions to address those issues. Failure by one or more EU member states to implement reforms or attain a certain performance level imposed as a condition of assistance, or an insufficient level of assistance, could deepen or prolong the economic downturn which could have a significant adverse effect on the value of investments in those and other European countries. By adopting the euro as its currency, members of the EMU are subject to fiscal and monetary controls that could limit to some degree the ability to implement their own economic policies. Additionally, EMU member states could voluntarily abandon the euro or involuntarily be forced out of the euro, including by way of a partial or complete dissolution of the EMU. The effects of such outcomes on the rest of the Eurozone and global markets as a whole are unpredictable, but are likely to be negative, including adversely impacted market values of Eurozone and various other securities and currencies, redenomination of certain securities into less valuable local currencies, and more volatile and illiquid markets. Under such circumstances, investments denominated in euros or replacement currencies may be difficult to value, the ability to operate an investment strategy in connection with euro-denominated securities may be significantly impaired and the value of euro-denominated investments may decline significantly and unpredictably. Additionally, the United Kingdom’s intended departure from the EU, known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the United Kingdom. Uncertainty relating to the withdrawal procedures and timeline may have adverse effects on asset valuations and the renegotiation of current trade agreements, as well as an increase in financial regulation of United Kingdom banks. While the full impact of Brexit is unknown, market disruption in the EU and globally may have a negative effect on the value of the Fund’s investments. Additionally, the risks related to Brexit could be more pronounced if one or more additional EU member states seek to leave the EU.

Commodity-Linked Derivatives. A commodity-linked derivative is a derivative instrument whose value is linked to the price movement of a commodity, commodity index, or commodity option or futures contract. The value of some commodity-linked derivatives may be based on a multiple of those price movements. The Fund is subject to legal requirements, applicable to all mutual funds, that are designed to reduce the effects of any leverage created by the use of derivative instruments.

Commodity-Linked Notes. A commodity-linked note is a derivative instrument that has characteristics of both a debt security and a commodity-linked derivative. It typically makes interest payments like a debt security and at maturity the principal payment is linked to the price movement of a commodity, commodity index, or commodity option or futures contract. Commodity-linked notes are typically issued by a bank, other financial institution or a commodity producer, and the Fund negotiates with the issuer to obtain specific terms and features that are tailored to the Fund’s investment needs.

Commodity-linked notes may be principal-protected, partially-protected, or offer no principal protection. A principal-protected commodity-linked note means that the issuer will pay, at a minimum, the par value of the note at maturity. With a partially-protected or no-principal-protection commodity-linked note, the Fund may receive at maturity an amount less than the note’s par value if the commodity, index or other economic variable value to which the note is linked declines over the term of the note. Investments in commodity-linked investments entail the risk that the Fund might not qualify as a “regulated investment company” under the Internal

Revenue Code and its income might become subject to income taxes, reducing returns to shareholders.

Risks of Commodity-Linked Investments. Investments linked to the prices of commodities are considered speculative. The commodity-linked instruments in which the Fund invests have substantial risks, including risk of loss of a significant portion of their principal value. Prices of commodities and commodity-linked investments may fluctuate significantly over short periods due to a variety of factors, including: changes in supply and demand relationships, weather, agriculture, fiscal and exchange control programs, disease, pestilence, and international economic, political, military and regulatory developments. These events might have less impact on the values of stocks and bonds and can make commodity-linked investments more volatile than other types of investments.

Commodity markets are also subject to temporary distortions and other disruptions due to lack of liquidity, the participation of speculators, and government regulation, among other factors. U.S. futures exchanges and some foreign exchanges limit the amount of fluctuation in futures contract prices that may occur in a single business day (generally referred to as “daily price fluctuation limits”). The maximum or minimum price of a contract as a result of these limits is referred to as a “limit price.” If the limit price has been reached in a particular contract, no trades may be made beyond the limit price. Limit prices may have the effect of precluding trading in a particular contract or forcing the liquidation of contracts at disadvantageous times or prices and could adversely affect the value of commodity-linked investments.

The tax treatment of commodity-linked investments may be adversely affected by changes in legislation, regulations or other legally binding authority. If, as a result of any such adverse action, the income of the Fund from certain commodity-linked derivatives was treated as non-qualifying income, the Fund might fail to qualify as a regulated investment company and be subject to federal income tax at the Fund level.

Investments in the Fund’s Wholly-Owned Subsidiary. The Fund may invest up to 25% of its total assets in the Subsidiary. The Subsidiary invests in commodity-linked derivatives (including commodity futures, financial futures, options and swap contracts), and certain fixed-income securities and other investments that may serve as margin or collateral for its derivatives positions.

Investment in the Subsidiary is expected to provide the Fund with exposure to the commodities markets within the limitations of the federal tax requirements of Subchapter M of the Internal Revenue Code (Subchapter M). Subchapter M requires, among other things, that at least 90% of the Fund’s gross income be derived from securities or derived with respect to its business of investing in securities (typically referred to as “qualifying income”). Income from certain of the commodity-linked derivatives in which the Fund invests may not be treated as “qualifying income” for purposes of the 90% income requirement.

If the Fund were to fail to qualify as a regulated investment company accorded special tax treatment in any taxable year, it would be subject to tax on its taxable income at the corporate income tax rate, and all distributions from earnings and profits, including any distributions of net tax-exempt income and net long-term capital gains, would be taxable to shareholders as ordinary income. The Fund could be required to pay substantial taxes, penalties and interest and to make substantial distributions, in order to re-qualify for such special treatment.

Derivative Investments. The Fund can invest in “derivative” instruments. A derivative is an instrument whose value depends on (or is derived from) the value of an underlying security, asset, interest rate, index or currency. Derivatives may allow the Fund to increase or decrease its exposure to certain markets or risks.

The Fund may use derivatives to seek to increase its investment return or for hedging purposes. The Fund is not required to use derivatives in seeking its investment objective or for hedging and might not do so.

Options, futures, forward contracts, swaps, “structured” notes, and certain mortgage-related securities are some of the types of derivatives

that the Fund may use. The Fund may also use other types of derivatives that are consistent with its investment strategies or for hedging purposes.

Swap Transactions. Under financial reform legislation currently being implemented, certain types of swaps are (or soon will be) required to be executed on a regulated market and/or cleared through a clearinghouse, which may affect counterparty risk and other risks faced by the Fund, and could result in increased margin requirements and costs for the Fund. Swap agreements are privately negotiated in the over-the-counter market and may be entered into as a bilateral contract or may be centrally cleared. In a cleared swap, immediately following execution of the swap agreement, the swap agreement is submitted for clearing to a clearing house, and the Fund faces the clearinghouse by means of an account with a futures commission merchant that is a member of the clearinghouse. Because the regulations regarding centrally cleared swaps have not yet been fully implemented, the scope of potential risks, including risks relating to the use of clearinghouses and futures commission merchants, is unclear.

Credit Default Swaps. A credit default swap enables an investor to buy or sell protection against a credit event with respect to an issuer, such as an issuer’s failure to make timely payments of interest or principal on its debt obligations, bankruptcy or restructuring. A credit default swap may be embedded within a structured note or other derivative instrument.

Risks of Credit Default Swaps. Credit default swaps are subject to credit risk of the underlying issuer and to counterparty credit risk. If the counterparty fails to meet its obligations, the Fund may lose money. Credit default swaps are also subject to the risk that the Fund will not properly assess the risk of the underlying issuer. If the Fund is selling credit protection, there is a risk that a credit event will occur and that the Fund will have to pay the counterparty. If the Fund is buying credit protection, there is a risk that no credit event will occur and the Fund will receive no benefit for the premium paid.

Total Return Swaps. In a total return swap transaction, one party agrees to pay the other party an amount equal to the total return on a defined underlying asset or a non-asset reference during a specified period of time. The underlying asset might be a security or asset or basket of securities or assets or a non-asset reference such as a securities or other type of index. In return, the other party would make periodic payments based on a fixed or variable interest rate or on the total return from a different underlying asset or non-asset reference.

Risks of Total Return Swaps. Total return swaps could result in losses if the underlying asset or reference does not perform as anticipated. Total return swaps can have the potential for unlimited losses. They are also subject to counterparty risk. If the counterparty fails to meet its obligations, the Fund may lose money.

Interest Rate Swaps. In an interest rate swap, the Fund and another party exchange the right to receive interest payments. For example, they might swap the right to receive floating rate payments based on a reference rate for the right to receive fixed rate payments. An interest rate swap enables an investor to buy or sell protection against changes in an interest rate. An interest rate swap may be embedded within a structured note or other derivative instrument.

Risks of Interest Rate Swaps. Interest rate swaps are subject to interest rate risk and credit risk. An interest rate swap transaction could result in losses if the underlying asset or reference rate does not perform as anticipated. Interest rate swaps are also subject to counterparty risk. If the counterparty fails to meet its obligations, the Fund may lose money.

Swaption Transactions. The Fund may enter into a swaption transaction, which is a contract that grants the holder, in return for payment of the purchase price (the “premium”) of the option, the right, but not the obligation, to enter into an interest rate swap at a preset rate within a specified period of time, with the writer of the contract. The writer of the contract receives the premium and bears the risk of unfavorable changes in the preset rate on the underlying interest rate swap. Unrealized gains/losses on swaptions are reflected in investment assets and investment liabilities in the Fund’s statement of financial condition.

“Structured” Notes. “Structured” notes are specially-designed derivative debt instruments. The terms of the instrument may be determined or “structured” by the purchaser and the issuer of the note. Payments of principal or interest on these notes may be linked to the value of an index (such as a currency or securities index), one or more securities, a commodity or the financial performance of one or more obligors. The value of these notes will normally rise or fall in response to the changes in the performance of the underlying security, index, commodity or obligor.

Risks of “Structured” Notes. Structured notes are subject to interest rate risk. They are also subject to credit risk with respect both to the issuer and, if applicable, to the underlying security or obligor. If the underlying investment or index does not perform as anticipated, the structured note might pay less interest than the stated coupon payment or repay less principal upon maturity. The price of structured notes may be very volatile and they may have a limited trading market, making it difficult to value them or sell them at an acceptable price. In some cases, the Fund may enter into agreements with an issuer of structured notes to purchase a minimum amount of those notes over time.

Foreign Currency Forwards and Options. Foreign currency forward contracts are used to buy or sell foreign currency for future delivery at a fixed price. They are used to lock in the U.S. dollar price of a security denominated in a foreign currency, or to protect against possible losses from changes in the relative value of the U.S. dollar against a foreign currency. Forward contracts involve the risk that anticipated currency movements will not be accurately predicted, which could result in losses on those contracts and additional transaction costs. The use of forward contracts could reduce performance if there are unanticipated changes in currency prices. Options on foreign currencies may be used to try to protect against declines in the U.S. dollar value of foreign securities the Fund owns and against increases in the dollar cost of foreign securities the Fund anticipates buying. Options on foreign currencies are affected by the factors that influence foreign exchange rates and investments generally. The Fund’s ability to establish and close out positions on foreign currency options is subject to the maintenance of a liquid secondary market, and there can be no assurance that a liquid secondary market will exist for a particular option at any specific time.

Interest Rate Futures. The Fund may use interest rate futures to manage exposure to interest rate risk or protect the Fund from fluctuations in the value of securities. An interest rate future is a contract for the future delivery of a debt security for a price based on the current value of the security. An interest rate future obligates the seller to deliver (and the purchaser to take) cash or the specified type of debt security to settle the futures transaction at its maturity. Either party could also enter into an offsetting contract to close out the position. For example, to seek to mitigate the risk that increasing prevailing interest rates may decrease the value of the Fund’s portfolio securities, the Fund might sell a U.S. Treasury bond future obligating it to sell a U.S. Treasury bond on a future date for an amount based on the current value of the bond. If prevailing interest rates rise, the Fund would be expected to be able to enter into an offsetting contract at a gain.

Risks of Interest Rate Futures. Interest rate futures expose the Fund to price fluctuations resulting from interest rate changes. If interest rates rise when the Fund has purchased an interest rate future, the Fund could suffer a loss in its futures positions. If interest rates fall when the Fund has sold an interest rate future, the Fund could similarly suffer a loss. The market value of interest rate futures may not move in concert with the value of the securities the Fund wishes to hedge or intends to purchase. Further, a lack of market liquidity could make it difficult to close out futures positions.

Risks of Futures Contracts. The volatility of futures contracts prices has been historically greater than the volatility of stocks and bonds. The liquidity of the futures market depends on participants entering into offsetting transactions rather than making or taking delivery. To the extent participants decide to make or take delivery, liquidity in the futures market could be reduced. In addition, futures exchanges often impose a maximum

permissible price movement on each futures contract for each trading session. The Fund may be disadvantaged if it is prohibited from executing a trade outside the daily permissible price movement.

Hedging. Hedging transactions are intended to reduce the risks of securities in the Fund’s portfolio. At times, however, a hedging instrument’s value might not be correlated with the investment it is intended to hedge, and the hedge might be unsuccessful. If the Fund uses a hedging instrument at the wrong time or judges market conditions incorrectly, the strategy could reduce its return or create a loss.

Risks of Derivative Investments. Derivatives may be volatile and may involve significant risks. The underlying security, obligor or other instrument on which a derivative is based, or the derivative itself, may not perform as expected. For some derivatives, it is possible to lose more than the amount invested in the derivative investment. In addition, some derivatives have the potential for unlimited loss, regardless of the size of the Fund’s initial investment. Certain derivative investments held by the Fund may be illiquid, making it difficult to close out an unfavorable position. Derivative transactions may require the payment of premiums and may increase portfolio turnover. Derivatives are subject to credit risk, since the Fund may lose money on a derivative investment if the issuer or counterparty fails to pay the amount due. In addition, changes in government regulation of derivative instruments could affect the character, timing and amount of the Fund’s taxable income or gains, and may limit or prevent the Fund from using certain types of derivative instruments as a part of its investment strategy, which could make the investment strategy more costly to implement or require the Fund to change its investment strategy. As a result of these risks, the Fund could realize little or no income or lose money from the investment, or the use of a derivative for hedging might be unsuccessful.

In addition, pursuant to rules implemented under financial reform legislation, certain over-the-counter derivatives, including certain interest rate swaps and certain credit default swaps, are required to be executed on a regulated market and/or cleared through a clearinghouse, which may result in increased margin requirements and costs for the Fund. Entering into a derivative transaction that is cleared may entail further risks and costs, including the counterparty risk of the clearinghouse and the futures commission merchant through which the Fund accesses the clearinghouse.

Risks of Leverage. Derivatives may involve leverage. Leverage occurs when an investor has the right to a return on an investment that exceeds the return that the investor would be expected to receive based on the amount contributed to the investment. The Fund’s use of certain leveraged derivatives can result in a loss substantially greater than the amount invested in the derivative itself. Certain derivatives have the potential for unlimited loss, regardless of the size of the initial investment. When the Fund uses derivatives that entail leverage, the Fund’s share price will tend to be more volatile, resulting in larger gains or losses in response to the fluctuating prices of the Fund’s investments. The Fund has limits on the leverage ratio of its overall portfolio. The Fund is also subject to legal requirements that it must identify liquid assets on its books with respect to certain derivatives or engage in other measures to seek to reduce derivatives risks.

Additional Investment Information.

In anticipation of or in response to market, economic, political, or other conditions, the Fund’s portfolio managers may temporarily use a different investment strategy for defensive purposes. If the Fund’s portfolio managers do so, different factors could affect the Fund’s performance and the Fund may not achieve its investment objective.

The Fund’s investments in the types of securities and other investments described in this prospectus vary from time to time, and, at any time, the Fund may not be invested in all of the types of securities and other investments described in this prospectus. The Fund may also invest in securities and other investments not described in this prospectus.

For more information, see “Description of the Funds and Their Investments and Risks” in the Fund’s SAI.

Other Investment Strategies and Risks

The Fund can also use the investment techniques and strategies described below. The Fund might not use all of these techniques or strategies or might only use them from time to time.

Diversification and Concentration. The Fund is a diversified fund. It attempts to reduce its exposure to the risks of individual securities by diversifying its investments across a broad number of different issuers. The Fund will not concentrate its investments in issuers in any one industry. At times, however, the Fund may emphasize investments in some industries or sectors more than others. The prices of securities of issuers in a particular industry or sector may go up and down in response to changes in economic conditions, government regulations, availability of basic resources or supplies, or other events that affect that industry or sector more than others. To the extent that the Fund increases the relative emphasis of its investments in a particular industry or sector, its share values may fluctuate in response to events affecting that industry or sector. The Securities and Exchange Commission has taken the position that investment of more than 25% of a fund’s total assets in issuers in the same industry constitutes concentration in that industry. That limit does not apply to securities issued or guaranteed by the U.S. government or its agencies and instrumentalities. For purposes of compliance with its concentration policy, the Fund will consider portfolio investments held by underlying investment companies in which the Fund invests, to the extent that the Fund has sufficient information about such portfolio investments. The Fund will make reasonable efforts to obtain such information.

Investments in Other Investment Companies. The Fund can also invest in the securities of other investment companies, which can include open-end funds, closed-end funds, unit investment trusts and business development companies subject to the limits of the Investment Company Act of 1940. One reason the Fund might do so is to gain exposure to segments of the markets represented by another fund, at times when the Fund might not be able to buy the particular type of securities directly. As a shareholder of an investment company, the Fund would be subject to its ratable share of that investment company’s expenses, including its advisory and administration expenses. The Fund does not intend to invest in other investment companies unless it is believed that the potential benefits of the investment justify the expenses. The Fund’s investments in the securities of other investment companies are subject to the limits that apply to those types of investments under the Investment Company Act of 1940.

Illiquid and Restricted Investments . Investments that do not have an active trading market, or that have legal or contractual limitations on their resale, may be considered to be “illiquid” investments. Illiquid investments may be difficult to value or to sell promptly at an acceptable price or may require registration under applicable securities laws before they can be sold publicly. Securities that have limitations on their resale are referred to as “restricted securities.” Certain restricted investments that are eligible for resale to qualified institutional purchasers may not be regarded as illiquid.

The Fund will comply with Rule 22e-4 in managing its illiquid investments. The Fund’s holdings of illiquid investments are monitored on an ongoing basis to determine whether to sell any of those investments to maintain adequate liquidity.

Investments in Mining Securities and Metal Investments. The Fund may invest directly in, or indirectly through the Subsidiary or by means of derivative instruments, securities issued by companies that are involved in mining or processing or dealing in gold or other metals or minerals. These securities are described as “Mining Securities.” The Fund may also invest up to 10% of its total assets in gold or silver bullion, in other precious metals, in metals naturally occurring with precious metals, in certificates representing an ownership interest in those metals, and in gold or silver coins. These investments are referred to as “Metal Investments.” The Fund’s investment in Gold ETFs is subject to this investment restriction.

Risks of Investments in Mining Securities and Metal Investments. Investments in Mining Securities and Metal Investments involve additional risks and considerations not typically associated with other types of investments: (1) the risk of substantial price fluctuations of gold and pre-

cious metals; (2) the concentration of gold supply is mainly in five territories (South Africa, Australia, the Commonwealth of Independent States (the former Soviet Union), Canada and the United States), and the prevailing economic and political conditions of these countries may have a direct effect on the production and marketing of gold and sales of central bank gold holdings; (3) unpredictable international monetary policies, economic and political conditions; (4) possible U.S. governmental regulation of Metal Investments, as well as foreign regulation of such investments; and (5) possible adverse tax consequences for the Fund in making Metal Investments, if it fails to qualify as a “regulated investment company” under the Internal Revenue Code.

To the extent the Fund invests in gold or silver bullion, it will earn no income. However, the Fund may realize gains as a result of the sale of those investments after an appreciation in the market price and such investments may incur higher storage and custody costs as compared to purchasing, holding and selling more traditional investments.

Investments in metals entail the risk that the Fund might not qualify as a “regulated investment company,” under the Internal Revenue Code because any gains from the sale of those investments would not constitute “qualifying income” under Subchapter M of the Code. As explained under “Investments in the Fund’s Wholly-Owned Subsidiary” in this prospectus, Subchapter M requires, among other things, that at least 90% of the Fund’s gross income be derived from qualifying sources. The “Taxes” section in this prospectus and “Dividends, Distributions and Tax Matters” section in the SAI provides additional information about the Fund’s tax implications.

Investing in Gold ETFs. Shares of Gold ETFs generally represent units of fractional undivided beneficial interests in a trust. The shares are intended to reflect the performance of the price of gold bullion. Because a Gold ETF has operating expenses and transaction and other costs (including storage and insurance costs) while the price of gold bullion does not, a Gold ETF will sell gold from time to time to pay expenses. This will reduce the amount of gold represented by each Gold ETF share, irrespective of whether the trading price of the shares rises or falls in response to changes in the price of gold. An investment in a Gold ETF is subject to all of the risks of investing directly in gold bullion, including tax risks. In addition, the market value of the shares of the Gold ETF may differ from its net asset value because the supply and demand in the market for shares of the Gold ETF at any point in time is not always identical to the supply and demand in the market for the underlying assets. Gold ETFs also have management fees that are part of their costs, and the Fund will indirectly bear its proportionate share of those costs. Under certain circumstances, a Gold ETF could be terminated. Should termination occur, the Gold ETF could have to liquidate its holdings at a time when the price of gold is falling.

Master Limited Partnerships. The Fund may invest in publicly traded limited partnerships known as “master limited partnerships” or MLPs. MLPs issue units that are registered with the Securities and Exchange Commission and are freely tradable on a securities exchange or in the over-the-counter market. An MLP consists of one or more general partners, who conduct the business, and one or more limited partners, who contribute capital. The Fund, as a limited partner, normally would not be liable for the debts of the MLP beyond the amounts the Fund has contributed, but would not be shielded to the same extent that a shareholder of a corporation would be. In certain circumstances creditors of an MLP would have the right to seek return of capital distributed to a limited partner. This right of an MLP’s creditors would continue after the Fund sold its investment in the MLP.

Dividend Capture Strategy and Risk. The Fund may use a dividend capture strategy where it purchases shares prior to the record date for a dividend and sells them within a short time thereafter. This strategy may result in higher turnover and associated transaction costs for the Fund and may generate taxable short-term gains or losses. There is no guarantee that the issuers of the stocks held by the Fund will declare dividends in the future or that, if dividends are declared, they will remain at their current levels or increase over time. Depending on market conditions, dividend paying stocks

that also meet the Fund’s investment criteria may not be widely available for purchase by the Fund. This may increase the volatility of the Fund’s returns and may limit the ability of the Fund to produce current income while remaining fully diversified. High-dividend stocks may not experience high earnings growth or capital appreciation. The Fund’s performance during a broad market advance could suffer because dividend paying stocks may not experience the same capital appreciation as non-dividend paying stocks. A sharp rise in interest rates or economic downturn could cause a company to unexpectedly reduce or eliminate its dividend. The Fund may hold securities for short periods of time related to the dividend payment periods and may experience loss during these periods.

Invesco Oppen heimer Developing Markets Fund

Objective(s), Principal Investment Strategies and Risks

The Fund’s investment objective is to seek capital appreciation. The Fund’s investment objective is fundamental and may not be changed without shareholder approval.

The following strategies and types of investments are the ones that the Fund considers to be the most important in seeking to achieve its investment objective and the following risks are those the Fund expects its portfolio to be subject to as a whole.

Common Stock. Common stock represents an ownership interest in a company. It ranks below preferred stock and debt securities in claims for dividends and in claims for assets of the issuer in a liquidation or bankruptcy. Common stocks may be exchange-traded or over-the-counter securities. Over-the-counter securities may be less liquid than exchange-traded securities.

The value of the Fund’s portfolio may be affected by changes in the stock markets. Stocks and other equity securities fluctuate in price in response to changes to equity markets in general. Stock markets may experience significant short-term volatility and may fall sharply at times. Adverse events in any part of the equity or fixed-income markets may have unexpected negative effects on other market segments. Different stock markets may behave differently from each other and U.S. stock markets may move in the opposite direction from one or more foreign stock markets.

The prices of individual stocks generally do not all move in the same direction at the same time. A variety of factors can negatively affect the price of a particular company’s stock. These factors may include, but are not limited to: poor earnings reports, a loss of customers, litigation against the company, general unfavorable performance of the company’s sector or industry, or changes in government regulations affecting the company or its industry. To the extent that securities of a particular type are emphasized, (for example foreign stocks, stocks of small- or mid-sized companies, growth or value stocks, or stocks of companies in a particular industry), their share values may fluctuate more in response to events affecting the market for those types of securities.

Growth Investing. Growth companies are companies whose earnings and stock prices are expected to grow at a faster rate than the overall market. Growth companies can be new companies or established companies that may be entering a growth cycle in their business. Their anticipated growth may come from developing new products or services or from expanding into new or growing markets. Growth companies may be applying new technologies, new or improved distribution methods or new business models that could enable them to capture an important or dominant market position. They may have a special area of expertise or the ability to take advantage of changes in demographic or other factors in a more profitable way. Newer growth companies generally tend to invest a large part of their earnings into research, development or capital assets. Although newer growth companies may not pay any dividends for some time, their stocks may be valued because of their potential for price increases.

Investing in China A Shares. The portfolio manager may pursue the Fund’s investment objective by investing a portion of the Fund’s assets in China A shares (China A Shares), which are shares of companies incorporated in the People’s Republic of China (PRC) and listed on the Shanghai Stock Exchange (SSE) or the Shenzhen Stock Exchange (SZSE). The China A Shares market is an active Chinese market that includes a large number of Chinese equities as well as smaller or emerging Chinese companies that may not list shares elsewhere. The China Securities Regulatory Commission (CSRC) and the Securities and Futures Commission of Hong Kong have approved programs which establish mutual stock market access between the PRC and Hong Kong, via the Shanghai-Hong Kong Stock Connect and the Shenzhen-Hong Kong Stock Connect (Stock Connect). Stock Connect is a securities trading and clearing program developed by Hong Kong Exchanges and Clearing Limited, the SSE, the SZSE and China Securities Depository and Clearing Corporation Limited (ChinaClear) designed to achieve mutual stock market access between the PRC and Hong Kong.

The Fund may invest directly in certain eligible China A Shares through Stock Connect or, for operational efficiency and regulatory considerations, through an investment in a private investment vehicle organized under Delaware law (the China Fund). The China Fund seeks long term capital appreciation by investing primarily in companies established or operating in the PRC. It is expected that the China Fund will invest a substantial portion of its assets in China A Shares and other securities available to certain qualified investors. The China Fund’s managing member, OppenheimerFunds, has full and exclusive discretionary authority to manage the day-to-day operations of the China Fund and to invest its assets. The Fund’s investment in the China Fund may vary based on the portfolio manager’s use of different types of investments that provide exposure to Chinese securities, e.g., through Stock Connect. Since the Fund may invest a portion of its assets in the China Fund, the Fund may be considered to be investing indirectly in such Chinese securities through the China Fund.

Risks of Investing through the China Fund. Investments in Class A shares of Chinese companies involve certain risks and special considerations not typically associated with investments in U.S. companies, such as greater government control over the economy, political and legal uncertainty, currency fluctuations or blockage, the risk that the Chinese government may decide not to continue to support economic reform programs and the risk of nationalization or expropriation of assets. Additionally, the Chinese securities markets are emerging markets and may be characterized by relatively low trading volume, which may result in substantially less liquidity and greater price volatility than more developed markets. Some of these risks may be more pronounced for the China A Shares market than for Chinese securities markets generally because the A-share market is subject to greater government restrictions and control. The China Fund’s China A Shares investment quota may be reduced or revoked by the Chinese government at any time, including if redemptions reduce the amount invested in China A Shares by the China Fund below the current quota amount. Further, the China Fund may invest substantially all of its assets in a limited number of issuers or a single issuer. To the extent that it does so, the China Fund is more subject to the risks associated with and developments affecting such issuers than a fund that invests more widely. In addition, although it is not currently expected to do so, the China Fund may invest a portion of its assets in certain exchange-traded and over-the-counter financial instruments from countries other than China.

The Fund will deem its investment in the China Fund to be illiquid and subject to the Fund’s policy regarding investments in illiquid investments. The Fund will comply with Rule 22e-4 in managing its illiquid investments. The Fund currently will invest no more than 10% of its net assets in the China Fund. Interests in the China Fund may be redeemed, and net redemption proceeds may be repatriated only once each day. In addition, the China Fund is subject to a monthly accumulated repatriation limit equal

to 20% of the China Fund’s total investment in China A Shares and other QFII permitted securities as of the end of the previous year. The Fund’s redemption of interests from the China Fund may be limited accordingly.

The China Fund is not registered under the Investment Company Act of 1940, as amended, and the rules and regulations promulgated thereunder by the SEC. To the extent a Fund invests in the China Fund, it will not have all of the protections offered to investors by the Investment Company Act of 1940. However, pursuant to an exemptive order granted on October 31, 2017 to the China Fund by the SEC, the China Fund is required to comply with the substantive requirements of a number of provisions of the Investment Company Act of 1940 and the regulations thereunder.

Risks of Investing through Stock Connect. Trading on Stock Connect is subject to an aggregated daily quota on purchases that can change without notice, restricting the Fund’s ability to invest in China A Shares on a timely basis. The Stock Exchange of Hong Kong Limited (SEHK), SSE and SZSE may suspend trading of individual securities or more broadly in response to market events, which may adversely affect the Fund’s ability to access the PRC market. Stock Connect only operates on days when both markets are open for trading and banks in both markets are also open on corresponding settlement days, thus the Fund may not be able to trade China A Shares on days when Stock Connect is not trading but normal trading for the PRC market otherwise occurs. Prices may fluctuate on China A Shares on days when Stock Connect is not trading. The Fund’s ability to enter and exit trades via Stock Connect on a timely basis is also restricted by a prohibition on turnaround (day) trading on the China A Share market (i.e., investors cannot purchase and sell the same securities via Stock Connect in the same trading day). Stock Connect relies on the maintenance by relevant market participants of certain information technology, risk management and other requirements. There is no assurance that relevant exchange trading systems and market participants will function properly or continue to adapt to changes. If relevant systems fail to function properly, trading disruptions can occur that adversely affect the Fund’s ability to access the China A Share market. The Fund is also subject to risks related to the clearing and settlement of securities, including for example where a default occurs in connection with the settlement of cross border trades that could cause potential delays in the Fund’s recovery process or its ability to fully recover losses. It is expected that the list of eligible securities on Stock Connect will be subject to review and may change periodically. Hong Kong and overseas investors are subject to a restriction on single foreign investors’ holding no more than 10% of the total issue shares, as well as a restriction that, in the aggregate, foreign investors’ hold no more than 30% of the total issue shares. Therefore, foreign investors could be required to unwind their positions if excessive shareholding restrictions are exceeded.

Regulations and implementation rules applicable to Stock Connect are novel and untested, and it is uncertain as to how they will be applied. There is also general uncertainty regarding changes in government policies, taxation, currency repatriation restrictions, permitted foreign ownership levels and other laws or regulations that impact Stock Connect. Under current PRC and CSRC tax guidance, capital gains realized by a Fund from trading of eligible China A Shares on the SSE under Stock Connect may currently enjoy a temporary exemption from PRC income and business tax. It is not known when such exemption will expire and whether other taxes will be applicable to trading securities under Stock Connect in the future. There is no guarantee that relevant tax regulations and guidance, including the temporary tax exemption with respect to Stock Connect, will continue to apply or will not be repealed and re-imposed retrospectively, or that no new tax regulations and practices relating to Stock Connect will be promulgated in the future, possibly with retroactive effect. Such changes could have a significant adverse effect on the Fund, including reducing returns, reducing the value of the Fund’s investments, and possibly impairing capital invested by the Fund.

Foreign Investing. The Fund may buy stocks and other equity securities of companies that are organized under the laws of a foreign country or that have a substantial portion of their operations or assets in a foreign country

or countries, or that derive a substantial portion of their revenue or profits from businesses, investments or sales outside of the United States.

The Fund may also buy debt securities issued by foreign companies and foreign governments or their agencies.

The Fund may purchase American Depositary Shares (ADS) as part of American Depositary Receipt (ADR) issuances, which are negotiable certificates issued by a U.S. bank representing a specified number of shares in a foreign stock traded on a U.S. exchange. ADS and ADRs are subject to some of the special considerations and risks that apply to foreign securities traded and held abroad.

Risks of Foreign Investing. Securities traded in foreign markets often involve special risks not present in U.S. investments that can increase the chances the Fund will lose money. Additional information regarding certain of the risks associated with foreign investing is provided below.

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Foreign Market Risk. If there are fewer investors in a particular foreign market, securities traded in that market may be less liquid and more volatile than U.S. securities and more difficult to price. Foreign markets may also be subject to delays in the settlement of transactions and difficulties in pricing securities. If the Fund is delayed in settling a purchase or sale transaction, it may not receive any return on the invested assets or it may lose money if the value of the security declines. It may also be more expensive for the Fund to buy or sell securities in certain foreign markets than in the United States, which may increase the Fund’s expense ratio.

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Foreign Economy Risk. Foreign economies may be more vulnerable to political or economic changes than the U.S. economy. They may be more concentrated in particular industries or may rely on particular resources or trading partners to a greater extent. Certain foreign economies may be adversely affected by shortages of investment capital or by high rates of inflation. Changes in economic or monetary policy in the U.S. or abroad may also have a greater impact on the economies of certain foreign countries.

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Foreign Governmental and Regulatory Risks. Foreign companies may not be subject to the same accounting and disclosure requirements as U.S. companies. As a result there may be less accurate information available regarding a foreign company’s operations and financial condition. Foreign companies may be subject to capital controls, nationalization, or confiscatory taxes. There may be less government regulation of foreign issuers, exchanges and brokers than in the United States. Some countries also have restrictions that limit foreign ownership and may impose penalties for increases in the value of the Fund’s investment. The value of the Fund’s foreign investments may be affected if it experiences difficulties in enforcing legal judgments in foreign courts.

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Foreign Currency Risk. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of securities denominated in that foreign currency. If the U.S. dollar rises in value against a foreign currency, a security denominated in that currency will be worth less in U.S. dollars and if the U.S. dollar decreases in value against a foreign currency, a security denominated in that currency will be worth more in U.S. dollars. The dollar value of foreign investments may also be affected by exchange controls. Foreign currency exchange transactions may impose additional costs on the Fund. The Fund can also invest in derivative instruments linked to foreign currencies. The change in value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of derivatives linked to that foreign currency. The investment adviser’s selection of foreign currency denominated investments may not perform as expected. Currency derivative investments may be particularly volatile and subject to greater risks than other types of foreign-currency denominated investments.

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Foreign Custody Risk. There may be very limited regulatory oversight of certain foreign banks or securities depositories that hold foreign securities and foreign currency and the laws of certain countries may

limit the ability to recover such assets if a foreign bank or depository or their agents goes bankrupt. There may also be an increased risk of loss of portfolio securities.

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Time Zone Arbitrage. If the Fund invests a significant amount of its assets in foreign securities, it may be exposed to “time-zone arbitrage” attempts by investors seeking to take advantage of differences in the values of foreign securities that might result from events that occur after the close of the foreign securities market on which a security is traded and before the close of the New York Stock Exchange that day, when the Fund’s net asset value is calculated. If such time zone arbitrage were successful, it might dilute the interests of other shareholders. However, the Fund’s use of “fair value pricing” under certain circumstances, to adjust the closing market prices of foreign securities to reflect what the investment adviser and the Board believe to be their fair value, may help deter those activities.

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Globalization Risks. The growing inter-relationship of global economies and financial markets has increased the effect of conditions in one country or region on issuers of securities in a different country or region. In particular, the adoption or prolongation of protectionist trade policies by one or more countries, changes in economic or monetary policy in the United States or abroad, or a slowdown in the U.S. economy, could lead to a decrease in demand for products and reduced flows of capital and income to companies in other countries.

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Regional Focus. At times, the Fund might increase the relative emphasis of its investments in a particular region of the world. Securities of issuers in a region might be affected by changes in economic conditions or by changes in government regulations, availability of basic resources or supplies, or other events that affect that region more than others. If the Fund has a greater emphasis on investments in a particular region, it may be subject to greater risks from adverse events that occur in that region than a fund that invests in a different region or that is more geographically diversified. Political, social or economic disruptions in the region may adversely affect the values of the Fund’s holdings.

Risks of Developing and Emerging Markets. Investments in developing and emerging market countries are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Investments in securities of issuers in developing or emerging market countries may be considered speculative. Additional information regarding certain of the risks associated with investing in developing and emerging markets is provided below.

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Less Developed Securities Markets. Developing or emerging market countries may have less well-developed securities markets and exchanges. Consequently they have lower trading volume than the securities markets of more developed countries and may be substantially less liquid than those of more developed countries.

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Transaction Settlement. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. As a result there could be subsequent declines in the value of the portfolio security, a decrease in the level of liquidity of the portfolio or, if there is a contract to sell the security, a possible liability to the purchaser.

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Price Volatility. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, which may lead to greater difficulties in pricing securities.

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Less Developed Governments and Economies. The governments of developing or emerging market countries may be more unstable than the governments of more developed countries. In addition, the economies of developing or emerging market countries may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries may be subject to social, political, or economic

instability. Further, the value of the currency of a developing or emerging market country may fluctuate more than the currencies of countries with more mature markets.

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Government Restrictions. In certain developing or emerging market countries, government approval may be required for the repatriation of investment income, capital or the proceeds of sales of securities by foreign investors. Other government restrictions may include confiscatory taxation, expropriation or nationalization of company assets, restrictions on foreign ownership of local companies, protectionist measures, and practices such as share blocking.

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Privatization Programs. The governments in some developing or emerging market countries have been engaged in programs to sell all or part of their interests in government-owned or controlled enterprises. However, in certain developing or emerging market countries, the ability of foreign entities to participate in privatization programs may be limited by local law. There can be no assurance that privatization programs will be successful.

Eurozone Investment Risks. The European Union (EU) is an economic and political union of most western European countries and a growing number of eastern European countries, collectively known as “member states.” One of the key mandates of the EU is the establishment and administration of a common single market, consisting of, among other things, a single currency and a common trade policy. In order to pursue this goal, member states established the Economic and Monetary Union (EMU), which sets out different stages and commitments that member states need to follow to achieve greater economic and monetary policy coordination, including the adoption of a single currency, the euro. Many member states have adopted the euro as their currency and, as a result, are subject to the monetary policies of the European Central Bank (ECB).

The global economic crisis that began in 2008 has caused severe financial difficulties for many EU member states, pushing some to the brink of insolvency and causing others to experience recession, large public debt, restructuring of government debt, credit rating downgrades and an overall weakening of banking and financial sectors. Some of those countries have depended on, and may continue to be dependent on, the assistance from others such as the ECB, the International Monetary Fund (IMF), or other governments and institutions to address those issues. Failure by one or more EU member states to implement reforms or attain a certain performance level imposed as a condition of assistance, or an insufficient level of assistance, could deepen or prolong the economic downturn which could have a significant adverse effect on the value of investments in those and other European countries. By adopting the euro as its currency, members of the EMU are subject to fiscal and monetary controls that could limit to some degree the ability to implement their own economic policies. Additionally, EMU member states could voluntarily abandon the euro or involuntarily be forced out of the euro, including by way of a partial or complete dissolution of the EMU. The effects of such outcomes on the rest of the Eurozone and global markets as a whole are unpredictable, but are likely to be negative, including adversely impacted market values of Eurozone and various other securities and currencies, redenomination of certain securities into less valuable local currencies, and more volatile and illiquid markets. Under such circumstances, investments denominated in euros or replacement currencies may be difficult to value, the ability to operate an investment strategy in connection with euro-denominated securities may be significantly impaired and the value of euro-denominated investments may decline significantly and unpredictably. Additionally, the United Kingdom’s (UK) intended departure from the EU, known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the UK. Uncertainty relating to the withdrawal procedures and timeline may have adverse effects on asset valuations and the renegotiation of current trade agreements, as well as an increase in financial regulation of UK banks. While the full impact of Brexit

is unknown, market disruption in the EU and globally may have a negative effect on the value of the Fund’s investments. Additionally, the risks related to Brexit could be more pronounced if one or more additional EU member states seek to leave the EU.

Small- and Mid-Cap Companies. Small-cap companies may be either established or newer companies, including “unseasoned” companies that typically have been in operation for less than three years. Mid-cap companies are generally companies that have completed their initial start-up cycle, and in many cases have established markets and developed seasoned market teams. While smaller companies might offer greater opportunities for gain than larger companies, they also may involve greater risk of loss. They may be more sensitive to changes in a company’s earnings expectations and may experience more abrupt and erratic price movements. Smaller companies’ securities often trade in lower volumes and in many instances, are traded over-the-counter or on a regional securities exchange, where the frequency and volume of trading is substantially less than is typical for securities of larger companies traded on national securities exchanges. Therefore, the securities of smaller companies may be subject to wider price fluctuations and it might be harder for the Fund to dispose of its holdings at an acceptable price when it wants to sell them. Small- and mid-cap companies may not have established markets for their products or services and may have fewer customers and product lines. They may have more limited access to financial resources and may not have the financial strength to sustain them through business downturns or adverse market conditions. Since small- and mid-cap companies typically reinvest a high proportion of their earnings in their business, they may not pay dividends for some time, particularly if they are newer companies. Smaller companies may have unseasoned management or less depth in management skill than larger, more established companies. They may be more reliant on the efforts of particular members of their management team and management changes may pose a greater risk to the success of the business. Securities of small, unseasoned companies may be particularly volatile, especially in the short term, and may have very limited liquidity in a declining market. It may take a substantial period of time to realize a gain on an investment in a small- or mid-cap company, if any gain is realized at all.

The Fund measures the market capitalization of an issuer at the time of investment. Because the relative sizes of companies change over time as the securities market changes, the Fund’s definition of what is a “small-cap,” “mid-cap” or “large-cap” company may change over time as well. After the Fund buys the security of an individual company, that company may expand or contract and no longer fall within the designated capitalization range. Although the Fund is not required to sell the securities of companies whose market capitalizations have grown or decreased beyond the Fund’s capitalization-range definition, it might sell some of those holdings to try to adjust the dollar-weighted median capitalization of its portfolio. That might cause the Fund to realize capital gains on an investment and could increase taxable distributions to shareholders.

When the Fund invests in smaller company securities that might trade infrequently, investors might seek to trade Fund shares based on their knowledge or understanding of the value of those securities (this is sometimes referred to as “price arbitrage”). If such price arbitrage were successful, it might interfere with the efficient management of the Fund’s portfolio and the Fund may be required to sell securities at disadvantageous times or prices to satisfy the liquidity requirements created by that activity. Successful price arbitrage might also dilute the value of fund shares held by other shareholders.

Additional Investment Information. In anticipation of or in response to market, economic, political, or other conditions, the Fund’s portfolio managers may temporarily use a different investment strategy for defensive purposes. If the Fund’s portfolio managers do so, different factors could affect the Fund’s performance and the Fund may not achieve its investment objective.

The Fund’s investments in the types of securities and other investments described in this prospectus vary from time to time, and, at any time, the

Fund may not be invested in all of the types of securities and other investments described in this prospectus. The Fund may also invest in securities and other investments not described in this prospectus.

For more information, see “Description of the Funds and Their Investments and Risks” in the Fund’s SAI.

Other Investment Strategies and Risks

The Fund can also use the investment techniques and strategies described below. The Fund might not use all of these techniques or strategies or might only use them from time to time.

Diversification and Concentration. The Fund is a diversified fund. It attempts to reduce its exposure to the risks of individual securities by diversifying its investments across a broad number of different issuers. The Fund will not concentrate its investments in issuers in any one industry. At times, however, the Fund may emphasize investments in some industries or sectors more than others. The prices of securities of issuers in a particular industry or sector may go up and down in response to changes in economic conditions, government regulations, availability of basic resources or supplies, or other events that affect that industry or sector more than others. To the extent that the Fund increases the relative emphasis of its investments in a particular industry or sector, its share values may fluctuate in response to events affecting that industry or sector. The Securities and Exchange Commission has taken the position that investment of more than 25% of a fund’s total assets in issuers in the same industry constitutes concentration in that industry. That limit does not apply to securities issued or guaranteed by the U.S. government or its agencies and instrumentalities. For purposes of compliance with its concentration policy, the Fund will consider portfolio investments held by underlying investment companies in which the Fund invests, to the extent that the Fund has sufficient information about such portfolio investments. The Fund will make reasonable efforts to obtain such information.

Other Equity Securities. In addition to common stocks, the Fund can invest in other equity or “equity equivalents” securities such as preferred stocks, convertible securities, rights or warrants.

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Preferred stock has a set dividend rate and ranks ahead of common stocks and behind debt securities in claims for dividends and for assets of the issuer in a liquidation or bankruptcy. The dividends on preferred stock may be cumulative (they remain a liability of the company until paid) or non-cumulative. The fixed dividend rate of preferred stocks may cause their prices to behave more like those of debt securities. If prevailing interest rates rise, the fixed dividend on preferred stock may be less attractive, which may cause the price of preferred stock to decline.

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Warrants are options to purchase equity securities at specific prices that are valid for a specific period of time. Their prices do not necessarily move parallel to the prices of the underlying securities, and can be more volatile than the price of the underlying securities. If the market price of the underlying security does not exceed the exercise price during the life of the warrant, the warrant will expire worthless and any amount paid for the warrant will be lost. The market for warrants may be very limited and it may be difficult to sell a warrant promptly at an acceptable price. Rights are similar to warrants, but normally have a short duration and are distributed directly by the issuer to its shareholders. Rights and warrants have no voting rights, receive no dividends and have no rights with respect to the assets of the issuer.

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A convertible security can be converted into or exchanged for a set amount of common stock of an issuer within a particular period of time at a specified price or according to a price formula. Convertible debt securities pay interest and convertible preferred stocks pay dividends until they mature or are converted, exchanged or redeemed. Some convertible debt securities may be considered “equity equivalents” because of the feature that makes them convertible into common stock. Convertible securities may offer the Fund the ability to participate in stock market movements while also seeking some cur-

rent income. Convertible securities may provide more income than common stock but they generally provide less income than comparable non-convertible debt securities. Convertible securities are subject to credit and interest rate risk, however credit ratings of convertible securities generally have less impact on the value of the securities than they do for non-convertible debt securities.

Investing in Domestic Securities. The Fund can invest in common and preferred stocks and debt securities of U.S. companies. It can also hold U.S. corporate and government debt securities for defensive and liquidity purposes. Under normal market conditions, the Fund does not expect to invest a significant amount of its assets in securities of U.S. issuers.

Debt Securities. Debt securities can include debt securities of foreign companies and governments, including those in developing countries. However, the Fund does not invest for income and does not expect to invest significant amounts in debt securities, unless they are convertible securities considered to be “equity equivalents,” or debt securities purchased for temporary defensive or liquidity purposes.

Debt securities may be subject to the following risks:

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Interest Rate Risk. Interest rate risk is the risk that rising interest rates, or an expectation of rising interest rates in the near future, will cause the values of the Fund’s investments in debt securities to decline. The values of debt securities usually change when prevailing interest rates change. When interest rates rise, the values of outstanding debt securities generally fall, and those securities may sell at a discount from their face amount. Additionally, when interest rates rise, the decrease in values of outstanding debt securities may not be offset by higher income from new investments. When interest rates fall, the values of already-issued debt securities generally rise and the Fund’s investments in new securities may be at lower yields and may reduce the Fund’s income. The values of longer-term debt securities usually change more than the values of shorter-term debt securities when interest rates change; thus, interest rate risk is usually greater for securities with longer maturities or durations. “Zero-coupon” or “stripped” securities may be particularly sensitive to interest rate changes. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are near historic lows. Interest rate changes may have different effects on the values of mortgage-related securities because of prepayment and extension risks.

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Duration Risk. Duration is a measure of the price sensitivity of a debt security or portfolio to interest rate changes. Duration risk is the risk that longer-duration debt securities are more volatile and thus more likely to decline in price, and to a greater extent, than shorter-duration debt securities, in a rising interest-rate environment. “Effective duration” attempts to measure the expected percentage change in the value of a bond or portfolio resulting from a change in prevailing interest rates. The change in the value of a bond or portfolio can be approximated by multiplying its duration by a change in interest rates. For example, if a bond has an effective duration of three years, a 1% increase in general interest rates would be expected to cause the bond’s value to decline about 3% while a 1% decrease in general interest rates would be expected to cause the bond’s value to increase 3%. The duration of a debt security may be equal to or shorter than the full maturity of a debt security.

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Credit Risk. Credit risk is the risk that the issuer of a security might not make interest and principal payments on the security as they become due. U.S. government securities generally have lower credit risks than securities issued by private issuers or certain foreign governments. If an issuer fails to pay interest, the Fund’s income might be reduced, and if an issuer fails to repay principal, the value of the security might fall and the Fund could lose the amount of its investment in the security. The extent of this risk varies based on the terms of the particular security and the financial condition of the issuer. A downgrade in an issuer’s credit rating or other adverse news about an issuer, for any reason, can reduce the market value of that issuer’s securities.

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Credit Spread Risk. Credit spread risk is the risk that credit spreads (i.e., the difference in yield between securities that is due to differences in their credit quality) may increase when the market expects lower-grade bonds to default more frequently. Widening credit spreads may quickly reduce the market values of the Fund’s lower-rated and unrated securities. Some unrated securities may not have an active trading market or may trade less actively than rated securities, which means that the Fund might have difficulty selling them promptly at an acceptable price.

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Extension Risk. Extension risk is the risk that, if interest rates rise rapidly, prepayments on certain debt securities may occur at a slower rate than expected, and the expected maturity of those securities could lengthen as a result. Securities that are subject to extension risk generally have a greater potential for loss when prevailing interest rates rise, which could cause their values to fall sharply. Extension risk is particularly prevalent for a callable security where an increase in interest rates could result in the issuer of that security choosing not to redeem the security as anticipated on the security’s call date. Such a decision by the issuer could have the effect of lengthening the debt security’s expected maturity, making it more vulnerable to interest rate risk and reducing its market value.

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Reinvestment Risk. Reinvestment risk is the risk that when interest rates fall, the Fund may be required to reinvest the proceeds from a security’s sale or redemption at a lower interest rate. Callable bonds are generally subject to greater reinvestment risk than non-callable bonds.

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Prepayment Risk. Certain fixed-income securities (in particular mortgage-related securities) are subject to the risk of unanticipated prepayment. Prepayment risk is the risk that, when interest rates fall, the issuer will redeem the security prior to the security’s expected maturity, or that borrowers will repay the loans that underlie these fixed-income securities more quickly than expected, thereby causing the issuer of the security to repay the principal prior to expected maturity. The Fund may need to reinvest the proceeds at a lower interest rate, reducing its income. Securities subject to prepayment risk generally offer less potential for gains when prevailing interest rates fall. If the Fund buys those securities at a premium, accelerated prepayments on those securities could cause the Fund to lose a portion of its principal investment. The impact of prepayments on the price of a security may be difficult to predict and may increase the security’s price volatility. Interest-only and principal-only securities are especially sensitive to interest rate changes, which can affect not only their prices but can also change the income flows and repayment assumptions about those investments.

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Event Risk. If an issuer of debt securities is the subject of a buyout, debt restructuring, merger or recapitalization that increases its debt load, it could interfere with its ability to make timely payments of interest and principal and cause the value of its debt securities to fall.

Fixed-Income Market Risks. The fixed-income securities market can be susceptible to unusual volatility and illiquidity. Volatility and illiquidity may be more pronounced in the case of lower-rated and unrated securities. Liquidity can decline unpredictably in response to overall economic conditions or credit tightening. Increases in volatility and decreases in liquidity may be caused by a rise in interest rates (or the expectation of a rise in interest rates), which are near historic lows in the U.S. and in other countries. During times of reduced market liquidity, the Fund may not be able to readily sell bonds at the prices at which they are carried on the Fund’s books. If the Fund needed to sell large blocks of bonds to meet shareholder redemption requests or to raise cash, those sales could further reduce the bonds’ prices. An unexpected increase in Fund redemption requests (including requests from shareholders who may own a significant percentage of the Fund’s shares) which may be triggered by market turmoil or an increase in interest rates, as well as other adverse market and economic developments, could cause the Fund to sell its holdings at a loss or at undesirable prices and adversely affect the Fund’s

share price and increase the Fund’s liquidity risk, Fund expenses and/or taxable distributions, if applicable. Similarly, the prices of the Fund’s holdings could be adversely affected if an investment account managed similarly to the Fund was to experience significant redemptions and that account was required to sell its holdings at an inopportune time. The liquidity of an issuer’s securities may decrease as a result of a decline in an issuer’s credit rating, the occurrence of an event that causes counterparties to avoid transacting with the issuer, or an increase in the issuer’s cash outflows, as well as other adverse market and economic developments. A lack of liquidity or other adverse credit market conditions may hamper the Fund’s ability to sell the debt securities in which it invests or to find and purchase suitable debt instruments.

Economic and other market developments can adversely affect fixed-income securities markets in the United States, Europe and elsewhere. At times, participants in debt securities markets may develop concerns about the ability of certain issuers of debt securities to make timely principal and interest payments, or they may develop concerns about the ability of financial institutions that make markets in certain debt securities to facilitate an orderly market. Those concerns may impact the market price or value of those debt securities and may cause increased volatility in those debt securities or debt securities markets, reducing the willingness of some lenders to extend credit, and making it more difficult for borrowers to obtain financing on attractive terms (or at all). Under some circumstances, as was the case during the latter half of 2008 and early 2009, those concerns could cause reduced liquidity in certain debt securities markets.

Following the financial crisis, the Federal Reserve sought to stabilize the economy by keeping the federal funds rate near zero percent. The Federal Reserve has also purchased large quantities of securities issued or guaranteed by the U.S. government, its agencies or instrumentalities, pursuant to its monetary stimulus program known as “quantitative easing.” As the Federal Reserve has completed the tapering of its securities purchases pursuant to quantitative easing, it has recently raised interest rates on multiple occasions, and continues to consider future raises to the federal funds rate, there is a risk that interest rates may rise and cause fixed-income investors to move out of fixed-income securities, which may also increase redemptions in fixed-income mutual funds.

In addition, although the fixed-income securities markets have grown significantly in the last few decades, regulations and business practices have led some financial intermediaries to curtail their capacity to engage in trading (i.e., “market making”) activities for certain debt securities. As a result, dealer inventories of fixed-income securities, which provide an indication of the ability of financial intermediaries to make markets in fixed-income securities, are near historic lows relative to market size. Because market makers help stabilize the market through their financial intermediary services, further reductions in dealer inventories could have the potential to decrease liquidity and increase volatility in the fixed-income securities markets.

Investing in Special Situations. At times, the Fund may seek to benefit from what are considered to be “special situations,” such as mergers, reorganizations, restructurings or other unusual events, that are expected to affect a particular issuer. There is a risk that the anticipated change or event might not occur, which could cause the price of the security to fall, perhaps sharply. In that case, the investment might not produce the expected gains or might cause a loss. This is an aggressive investment technique that may be considered speculative.

Derivative Investments. The Fund can invest in “derivative” instruments. A derivative is an instrument whose value depends on (or is derived from) the value of an underlying security, asset, interest rate, index or currency. Derivatives may allow the Fund to increase or decrease its exposure to certain markets or risks.

The Fund may use derivatives to seek to increase its investment return or for hedging purposes. The Fund is not required to use derivatives in seeking its investment objective or for hedging and might not do so.

Options, futures and forward contracts are some of the types of derivatives that the Fund can use. The Fund may also use other types of

derivatives that are consistent with its investment strategies or for hedging purposes.

Hedging. Hedging transactions are intended to reduce the risks of securities in the Fund’s portfolio. At times, however, a hedging instrument’s value might not be correlated with the investment it is intended to hedge, and the hedge might be unsuccessful. If the Fund uses a hedging instrument at the wrong time or judges market conditions incorrectly, the strategy could reduce its return or create a loss.

Risks of Derivative Investments. Derivatives may be volatile and may involve significant risks. The underlying security, obligor or other instrument on which a derivative is based, or the derivative itself, may not perform as expected. For some derivatives, it is possible to lose more than the amount invested in the derivative investment. In addition, some derivatives have the potential for unlimited loss, regardless of the size of the Fund’s initial investment. Certain derivative investments held by the Fund may be illiquid, making it difficult to close out an unfavorable position. Derivative transactions may require the payment of premiums and may increase portfolio turnover. Derivatives are subject to credit risk, since the Fund may lose money on a derivative investment if the issuer or counterparty fails to pay the amount due. In addition, changes in government regulation of derivative instruments could affect the character, timing and amount of the Fund’s taxable income or gains, and may limit or prevent the Fund from using certain types of derivative instruments as a part of its investment strategy, which could make the investment strategy more costly to implement or require the Fund to change its investment strategy. As a result of these risks, the Fund could realize little or no income or lose money from the investment, or the use of a derivative for hedging might be unsuccessful.

In addition, pursuant to rules implemented under financial reform legislation, certain over-the-counter derivatives, including certain interest rate swaps and certain credit default swaps, are required to be executed on a regulated market and/or cleared through a clearinghouse, which may result in increased margin requirements and costs for the Fund. Entering into a derivative transaction that is cleared may entail further risks and costs, including the counterparty risk of the clearinghouse and the futures commission merchant through which the Fund accesses the clearinghouse.

Illiquid and Restricted Investments . Investments that do not have an active trading market, or that have legal or contractual limitations on their resale, may be considered to be “illiquid” investments. Illiquid investments may be difficult to value or to sell promptly at an acceptable price or may require registration under applicable securities laws before they can be sold publicly. Securities that have limitations on their resale are referred to as “restricted securities.” Certain restricted investments that are eligible for resale to qualified institutional purchasers may not be regarded as illiquid.

The Fund will comply with Rule 22e-4 in managing its illiquid investments. The Fund’s holdings of illiquid investments are monitored on an ongoing basis to determine whether to sell any of those investments to maintain adequate liquidity.

Invesco Oppenhei mer Emerging Markets Innovators Fund

Objective(s), Principal Investment Strategies and Risks

The Fund’s investment objective is to seek capital appreciation. The Fund’s investment objective may be changed by the Board of Trustees (the Board) without shareholder approval.

The following strategies and types of investments are the ones that the Fund considers to be the most important in seeking to achieve its investment objective and the following risks are those the Fund expects its portfolio to be subject to as a whole.

Common Stock and Other Equity Investments. Equity securities include common stock, preferred stock, rights, warrants and certain securities that are convertible into common stock. Equity investments may be exchange-traded or over-the-counter securities.

The value of the Fund’s portfolio may be affected by changes in the stock markets. Stocks and other equity securities fluctuate in price in response to changes to equity markets in general. Stock markets may experience significant short-term volatility and may fall sharply at times. Adverse events in any part of the equity or fixed-income markets may have unexpected negative effects on other market segments. Different stock markets may behave differently from each other and U.S. stock markets may move in the opposite direction from one or more foreign stock markets.

The prices of equity securities generally do not all move in the same direction at the same time. A variety of factors can negatively affect the price of a particular company’s stock. These factors may include, but are not limited to: poor earnings reports, a loss of customers, litigation against the company, general unfavorable performance of the company’s sector or industry, or changes in government regulations affecting the company or its industry. To the extent that securities of a particular type are emphasized (for example foreign stocks, stocks of small- or mid-cap companies, growth or value stocks, or stocks of companies in a particular industry) their share values may fluctuate more in response to events affecting the market for that type of security.

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Common stock represents an ownership interest in a company. It ranks below preferred stock and debt securities in claims for dividends and in claims for assets of the issuer in a liquidation or bankruptcy.

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Preferred stock has a set dividend rate and ranks ahead of common stocks and behind debt securities in claims for dividends and for assets of the issuer in a liquidation or bankruptcy. The dividends on preferred stock may be cumulative (they remain a liability of the company until paid) or non-cumulative. The fixed dividend rate of preferred stocks may cause their prices to behave more like those of debt securities. If prevailing interest rates rise, the fixed dividend on preferred stock may be less attractive, which may cause the price of preferred stock to decline.

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Warrants are options to purchase equity securities at specific prices that are valid for a specific period of time. Their prices do not necessarily move parallel to the prices of the underlying securities, and can be more volatile than the price of the underlying securities. If the market price of the underlying security does not exceed the exercise price during the life of the warrant, the warrant will expire worthless and any amount paid for the warrant will be lost. The market for warrants may be very limited and it may be difficult to sell a warrant promptly at an acceptable price. Rights are similar to warrants, but normally have a short duration and are distributed directly by the issuer to its shareholders. Rights and warrants have no voting rights, receive no dividends and have no rights with respect to the assets of the issuer.

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Convertible securities can be converted into or exchanged for a set amount of common stock of an issuer within a particular period of time at a specified price or according to a price formula. Convertible debt securities pay interest and convertible preferred stocks pay dividends until they mature or are converted, exchanged or redeemed. Some convertible debt securities may be considered “equity equivalents” because of the feature that makes them convertible into common stock. The conversion feature of convertible securities generally causes the market value of convertible securities to increase when the value of the underlying common stock increases, and to fall when the stock price falls. The market value of a convertible security reflects both its “investment value,” which is its expected income potential, and its “conversion value,” which is its anticipated market value if it were converted. If its conversion value exceeds its investment value, the security will generally behave more like an equity security, in which case its price will tend to fluctuate with the price of the underlying common stock or other security. If its investment value exceeds its conversion value, the security will generally behave more like a debt security, in which case the security’s price will likely increase when interest rates fall and decrease when interest rates

rise. Convertible securities may offer the Fund the ability to participate in stock market movements while also seeking some current income. Convertible securities may provide more income than common stock but they generally provide less income than comparable non-convertible debt securities. Most convertible securities will vary, to some extent, with changes in the price of the underlying common stock and are therefore subject to the risks of that stock. In addition, convertible securities may be subject to the risk that the issuer will not be able to pay interest or dividends when due, and their market value may change based on changes in the issuer’s credit rating or the market’s perception of the issuer’s creditworthiness. However, credit ratings of convertible securities generally have less impact on the value of the securities than they do for non-convertible debt securities. Some convertible preferred stocks have a mandatory conversion feature or a call feature that allows the issuer to redeem the stock on or prior to a mandatory conversion date. Those features could diminish the potential for capital appreciation on the investment.

Foreign Investing. The Fund may buy stocks and other equity securities of companies that are organized under the laws of a foreign country or that have a substantial portion of their operations or assets in a foreign country or countries, or that derive a substantial portion of their revenue or profits from businesses, investments or sales outside of the United States.

The Fund may also buy debt securities issued by foreign companies and foreign governments or their agencies. The Fund may purchase American Depositary Shares (ADS) as part of American Depositary Receipt (ADR) issuances, which are negotiable certificates issued by a U.S. bank representing a specified number of shares in a foreign stock traded on a U.S. exchange. ADS and ADRs are subject to some of the special considerations and risks that apply to foreign securities traded and held abroad.

Risks of Foreign Investing. Securities traded in foreign markets often involve special risks not present in U.S. investments that can increase the chances the Fund will lose money. Additional information regarding certain of the risks associated with foreign investing is provided below.

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Foreign Market Risk. If there are fewer investors in a particular foreign market, securities traded in that market may be less liquid and more volatile than U.S. securities and more difficult to price. Foreign markets may also be subject to delays in the settlement of transactions and difficulties in pricing securities. If the Fund is delayed in settling a purchase or sale transaction, it may not receive any return on the invested assets or it may lose money if the value of the security declines. It may also be more expensive for the Fund to buy or sell securities in certain foreign markets than in the United States, which may increase the Fund’s expense ratio.

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Foreign Economy Risk. Foreign economies may be more vulnerable to political or economic changes than the U.S. economy. They may be more concentrated in particular industries or may rely on particular resources or trading partners to a greater extent. Certain foreign economies may be adversely affected by shortages of investment capital or by high rates of inflation. Changes in economic or monetary policy in the U.S. or abroad may also have a greater impact on the economies of certain foreign countries.

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Foreign Governmental and Regulatory Risks. Foreign companies may not be subject to the same accounting and disclosure requirements as U.S. companies. As a result there may be less accurate information available regarding a foreign company’s operations and financial condition. Foreign companies may be subject to capital controls, nationalization, or confiscatory taxes. There may be less government regulation of foreign issuers, exchanges and brokers than in the United States. Some countries also have restrictions that limit foreign ownership and may impose penalties for increases in the value of the Fund’s investment. The value of the Fund’s foreign investments may be affected if it experiences difficulties in enforcing legal judgments in foreign courts.

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Foreign Currency Risk. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of securities denominated in that foreign currency. If the U.S. dollar rises in value against a foreign currency, a security denominated in that currency will be worth less in U.S. dollars and if the U.S. dollar decreases in value against a foreign currency, a security denominated in that currency will be worth more in U.S. dollars. The dollar value of foreign investments may also be affected by exchange controls. Foreign currency exchange transactions may impose additional costs on the Fund. The Fund can also invest in derivative instruments linked to foreign currencies. The change in value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of derivatives linked to that foreign currency. The investment adviser’s selection of foreign currency denominated investments may not perform as expected. Currency derivative investments may be particularly volatile and subject to greater risks than other types of foreign-currency denominated investments.

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Foreign Custody Risk. There may be very limited regulatory oversight of certain foreign banks or securities depositories that hold foreign securities and foreign currency and the laws of certain countries may limit the ability to recover such assets if a foreign bank or depository or their agents goes bankrupt. There may also be an increased risk of loss of portfolio securities.

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Time Zone Arbitrage. If the Fund invests a significant amount of its assets in foreign securities, it may be exposed to “time-zone arbitrage” attempts by investors seeking to take advantage of differences in the values of foreign securities that might result from events that occur after the close of the foreign securities market on which a security is traded and before the close of the New York Stock Exchange that day, when the Fund’s net asset value is calculated. If such time zone arbitrage were successful, it might dilute the interests of other shareholders. However, the Fund’s use of “fair value pricing” under certain circumstances, to adjust the closing market prices of foreign securities to reflect what the investment adviser and the Board believe to be their fair value, may help deter those activities.

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Globalization Risks. The growing inter-relationship of global economies and financial markets has increased the effect of conditions in one country or region on issuers of securities in a different country or region. In particular, the adoption or prolongation of protectionist trade policies by one or more countries, changes in economic or monetary policy in the United States or abroad, or a slowdown in the U.S. economy, could lead to a decrease in demand for products and reduced flows of capital and income to companies in other countries.

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Regional Focus. At times, the Fund might increase the relative emphasis of its investments in a particular region of the world. Securities of issuers in a region might be affected by changes in economic conditions or by changes in government regulations, availability of basic resources or supplies, or other events that affect that region more than others. If the Fund has a greater emphasis on investments in a particular region, it may be subject to greater risks from adverse events that occur in that region than a fund that invests in a different region or that is more geographically diversified. Political, social or economic disruptions in the region may adversely affect the values of the Fund’s holdings.

Risks of Developing and Emerging Markets. Investments in developing and emerging market countries are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Investments in securities of issuers in developing or emerging market countries may be considered speculative. Additional information regarding certain of the risks associated with investing in developing and emerging markets is provided below.

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Less Developed Securities Markets. Developing or emerging market countries may have less well-developed securities markets and exchanges. Consequently they have lower trading volume than the

securities markets of more developed countries and may be substantially less liquid than those of more developed countries.

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Transaction Settlement. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. As a result there could be subsequent declines in the value of the portfolio security, a decrease in the level of liquidity of the portfolio or, if there is a contract to sell the security, a possible liability to the purchaser.

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Price Volatility. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, which may lead to greater difficulties in pricing securities.

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Less Developed Governments and Economies. The governments of developing or emerging market countries may be more unstable than the governments of more developed countries. In addition, the economies of developing or emerging market countries may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries may be subject to social, political, or economic instability. Further, the value of the currency of a developing or emerging market country may fluctuate more than the currencies of countries with more mature markets.

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Government Restrictions. In certain developing or emerging market countries, government approval may be required for the repatriation of investment income, capital or the proceeds of sales of securities by foreign investors. Other government restrictions may include confiscatory taxation, expropriation or nationalization of company assets, restrictions on foreign ownership of local companies, protectionist measures, and practices such as share blocking.

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Privatization Programs. The governments in some developing or emerging market countries have been engaged in programs to sell all or part of their interests in government-owned or controlled enterprises. However, in certain developing or emerging market countries, the ability of foreign entities to participate in privatization programs may be limited by local law. There can be no assurance that privatization programs will be successful.

Frontier Market Risk. The risks associated with investments in frontier market countries include all the risks associated with investments in developing and emerging markets. These risks are magnified for frontier market countries because frontier market countries generally have smaller economies, even less developed capital markets, and are traditionally less accessible than traditional emerging and developing markets. As a result, investments in companies in frontier market countries are generally subject to a higher risk of loss than investments in companies in traditional emerging and developing market countries due to less developed securities markets, different settlement procedures, greater price volatility, less developed governments and economies, more government restrictions, and the limited ability of foreign entities to participate in certain privatization programs. Investments in companies operating in frontier market countries are highly speculative in nature.

Eurozone Investment Risks. The European Union (EU) is an economic and political union of most western European countries and a growing number of eastern European countries, collectively known as “member states.” One of the key mandates of the EU is the establishment and administration of a common single market, consisting of, among other things, a single currency and a common trade policy. In order to pursue this goal, member states established the Economic and Monetary Union (EMU), which sets out different stages and commitments that member states need to follow to achieve greater economic and monetary policy coordination, including the adoption of a single currency, the euro. Many member states have adopted the euro as their currency and, as a result, are subject to the monetary policies of the European Central Bank (ECB).

The global economic crisis that began in 2008 has caused severe financial difficulties for many EU member states, pushing some to the brink of insolvency and causing others to experience recession, large public debt, restructuring of government debt, credit rating downgrades and an overall weakening of banking and financial sectors. Some of those countries have depended on, and may continue to be dependent on, the assistance from others such as the ECB, the International Monetary Fund (IMF), or other governments and institutions to address those issues. Failure by one or more EU member states to implement reforms or attain a certain performance level imposed as a condition of assistance, or an insufficient level of assistance, could deepen or prolong the economic downturn which could have a significant adverse effect on the value of investments in those and other European countries. By adopting the euro as its currency, members of the EMU are subject to fiscal and monetary controls that could limit to some degree the ability to implement their own economic policies. Additionally, EMU member states could voluntarily abandon the euro or involuntarily be forced out of the euro, including by way of a partial or complete dissolution of the EMU. The effects of such outcomes on the rest of the Eurozone and global markets as a whole are unpredictable, but are likely to be negative, including adversely impacted market values of Eurozone and various other securities and currencies, redenomination of certain securities into less valuable local currencies, and more volatile and illiquid markets. Under such circumstances, investments denominated in euros or replacement currencies may be difficult to value, the ability to operate an investment strategy in connection with euro-denominated securities may be significantly impaired and the value of euro-denominated investments may decline significantly and unpredictably. Additionally, the United Kingdom’s intended departure from the EU, known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the United Kingdom. Uncertainty relating to the withdrawal procedures and timeline may have adverse effects on asset valuations and the renegotiation of current trade agreements, as well as an increase in financial regulation of United Kingdom banks. While the full impact of Brexit is unknown, market disruption in the EU and globally may have a negative effect on the value of the Fund’s investments. Additionally, the risks related to Brexit could be more pronounced if one or more additional EU member states seek to leave the EU.

Investing in China A Shares. The portfolio managers may pursue the Fund’s investment objective by investing a portion of the Fund’s assets in China A shares (China A Shares), which are shares of companies incorporated in the People’s Republic of China (PRC) and listed on the Shanghai Stock Exchange (SSE) or the Shenzhen Stock Exchange (SZSE). The China A Shares market is an active Chinese market that includes a large number of Chinese equities as well as smaller or emerging Chinese companies that may not list shares elsewhere. The China Securities Regulatory Commission (CSRC) and the Securities and Futures Commission of Hong Kong have approved programs which establish mutual stock market access between the PRC and Hong Kong, via the Shanghai-Hong Kong Stock Connect and the Shenzhen- Hong Kong Stock Connect (Stock Connect). Stock Connect is a securities trading and clearing program developed by Hong Kong Exchanges and Clearing Limited, the SSE, the SZSE and China Securities Depository and Clearing Corporation Limited (ChinaClear) designed to achieve mutual stock market access between the PRC and Hong Kong.

The Fund may invest directly in certain eligible China A Shares through Stock Connect or, for operational efficiency and regulatory considerations, through an investment in private investment vehicle organized under Delaware law (the China Fund). The China Fund seeks long term capital appreciation by investing primarily in companies established or operating in the PRC. It is expected that the China Fund will invest a substantial portion of its assets in China A Shares and other securities available to certain qualified investors. The China Fund’s managing member, Oppenhei-

merFunds, has full and exclusive discretionary authority to manage the day-to-day operations of the China Fund and to invest its assets. The Fund’s investment in the China Fund may vary based on the portfolio managers’ use of different types of investments that provide exposure to Chinese securities, e.g., through Stock Connect. Since the Fund may invest a portion of its assets in the China Fund, the Fund may be considered to be investing indirectly in such Chinese securities through the China Fund.

Risks of Investing through the China Fund. Investments in Class A shares of Chinese companies involve certain risks and special considerations not typically associated with investments in U.S. companies, such as greater government control over the economy, political and legal uncertainty, currency fluctuations or blockage, the risk that the Chinese government may decide not to continue to support economic reform programs and the risk of nationalization or expropriation of assets. Additionally, the Chinese securities markets are emerging markets and may be characterized by relatively low trading volume, which may result in substantially less liquidity and greater price volatility than more developed markets. Some of these risks may be more pronounced for the China A Shares market than for Chinese securities markets generally because the A-share market is subject to greater government restrictions and control. The China Fund’s China A Shares investment quota may be reduced or revoked by the Chinese government at any time, including if redemptions reduce the amount invested in China A Shares by the China Fund below the current quota amount. Further, the China Fund may invest substantially all of its assets in a limited number of issuers or a single issuer. To the extent that it does so, the China Fund is more subject to the risks associated with and developments affecting such issuers than a fund that invests more widely. In addition, although it is not currently expected to do so, the China Fund may invest a portion of its assets in certain exchange-traded and over-the-counter financial instruments from countries other than China.

The Fund will deem its investment in the China Fund to be illiquid and subject to the Fund’s policy regarding investments in illiquid investments. Currently, the Fund has a policy of investing no more than 15% of its net assets in illiquid or restricted securities. The Fund currently will invest no more than 10% of its net assets in the China Fund. Interests in the China Fund may be redeemed, and net redemption proceeds may be repatriated only once each day. In addition, the China Fund is subject to a monthly accumulated repatriation limit equal to 20% of the China Fund’s total investment in China A Shares and other qualified foreign institutional investor (QFII) permitted securities as of the end of the previous year. The Fund’s redemption of interests from the China Fund may be limited accordingly.

The China Fund is not registered under the Investment Company Act of 1940, as amended, and the rules and regulations promulgated thereunder by the SEC. To the extent a Fund invests in the China Fund, it will not have all of the protections offered to investors by the Investment Company Act of 1940. However, pursuant to an exemptive order granted on October 31, 2017 to the China Fund by the SEC, the China Fund is required to comply with the substantive requirements of a number of provisions of the Investment Company Act of 1940 and the regulations thereunder.

Risks of Investing through Stock Connect. Trading on Stock Connect is subject to an aggregated daily quota on purchases that can change without notice, restricting the Fund’s ability to invest in China A Shares on a timely basis. The Stock Exchange of Hong Kong Limited (SEHK), SSE and SZSE may suspend trading of individual securities or more broadly in response to market events, which may adversely affecting the Fund’s ability to access the PRC market. Stock Connect only operates on days when both markets are open for trading and banks in both markets are also open on corresponding settlement days, thus the Fund may not be able to trade China A Shares on days when Stock Connect is not trading but normal trading for the PRC market otherwise occurs. Prices may fluctuate on China A Shares on days when Stock Connect is not trading. The Fund’s ability to enter and exit trades via Stock Connect on a timely basis is also restricted by a prohibition on turnaround (day) trading on the China A Share market

(i.e., investors cannot purchase and sell the same securities via Stock Connect in the same trading day). Stock Connect relies on the maintenance by relevant market participants of certain information technology, risk management and other requirements. There is no assurance that relevant exchange trading systems and market participants will function properly or continue to adapt to changes. If relevant systems fail to function properly, trading disruptions can occur that adversely affect the Fund’s ability to access the China A Share market. The Fund is also subject to risks related to the clearing and settlement of securities, including for example where a default occurs in connection with the settlement of cross border trades that could cause potential delays in the Fund’s recovery process or its ability to fully recover losses. It is expected that the list of eligible securities on Stock Connect will be subject to review and may change periodically. Hong Kong and overseas investors are subject to a restriction on single foreign investors’ holding no more than 10% of the total issue shares, as well as a restriction that, in the aggregate, foreign investors’ hold no more than 30% of the total issue shares. Therefore, foreign investors could be required to unwind their positions if excessive shareholding restrictions are exceeded.

Regulations and implementation rules applicable to Stock Connect are novel and untested, and it is uncertain as to how they will be applied. There is also general uncertainty regarding changes in government policies, taxation, currency repatriation restrictions, permitted foreign ownership levels and other laws or regulations that impact Stock Connect.

Under current PRC and CSRC tax guidance, capital gains realized by the Fund from trading of eligible China A Shares on the SSE under Stock Connect may currently enjoy a temporary exemption from PRC income and business tax. It is not known when such exemption will expire and whether other taxes will be applicable to trading securities under Stock Connect in the future. There is no guarantee that relevant tax regulations and guidance, including the temporary tax exemption with respect to Stock Connect, will continue to apply, will not be repealed and re-imposed retrospectively, or that no new tax regulations and practice relating to Stock Connect will not be promulgated in the future, possibly with retroactive effect. Such changes could have a significant adverse effect on the Fund, including reducing returns, reducing the value of the Fund’s investments, and possibly impairing capital invested by the Fund.

Growth Investing. Growth companies are companies whose earnings and stock prices are expected to grow at a faster rate than the overall market. Growth companies can be new companies or established companies that may be entering a growth cycle in their business. Their anticipated growth may come from developing new products or services or from expanding into new or growing markets. Growth companies may be applying new technologies, new or improved distribution methods or new business models that could enable them to capture an important or dominant market position. They may have a special area of expertise or the ability to take advantage of changes in demographic or other factors in a more profitable way. Newer growth companies generally tend to invest a large part of their earnings into research, development or capital assets. Although newer growth companies may not pay any dividends for some time, their stocks may be valued because of their potential for price increases.

Small-Cap Companies . Small-cap companies may be either established or newer companies, including “unseasoned” companies that have typically been in operation for less than three years. While smaller companies might offer greater opportunities for gain than larger companies, they also involve greater risk of loss. They may be more sensitive to changes in a company’s earnings expectations and may experience more abrupt and erratic price movements. Smaller companies’ securities often trade in lower volumes and in many instances, are traded over-the-counter or on a regional securities exchange, where the frequency and volume of trading is substantially less than is typical for securities of larger companies traded on national securities exchanges. Therefore, the securities of smaller companies may be subject to wider price fluctuations and it might be harder for the Fund to dispose of its holdings at an acceptable price when

it wants to sell them. Smaller companies may not have established markets for their products or services and may have fewer customers and product lines. They may have more limited access to financial resources and may not have the financial strength to sustain them through business downturns or adverse market conditions. Since smaller companies typically reinvest a high proportion of their earnings in their business, they may not pay dividends for some time, particularly if they are newer companies. Smaller companies may have unseasoned management or less depth in management skill than larger, more established companies. They may be more reliant on the efforts of particular members of their management team and management changes may pose a greater risk to the success of the business. Securities of small, unseasoned companies may be particularly volatile, especially in the short-term, and may have very limited liquidity in a declining market. It may take a substantial period of time to realize a gain on an investment in a small-cap company, if any gain is realized at all.

The Fund measures the market capitalization of an issuer at the time of investment. Because the relative sizes of companies change over time as the securities market changes, the Fund’s definition of what is a “small-cap,” “mid-cap” or “large-cap” company may change over time as well. After the Fund buys the security of an individual company, that company may expand or contract and no longer fall within the designated capitalization range. Although the Fund is not required to sell the securities of companies whose market capitalizations have grown or decreased beyond the Fund’s capitalization-range definition, it might sell some of those holdings to try to adjust the dollar-weighted median capitalization of its portfolio. That might cause the Fund to realize capital gains on an investment and could increase taxable distributions to shareholders.

When the Fund invests in smaller company securities that might trade infrequently, investors might seek to trade Fund shares based on their knowledge or understanding of the value of those securities (this is sometimes referred to as “price arbitrage”). If such price arbitrage were successful, it might interfere with the efficient management of the Fund’s portfolio and the Fund may be required to sell securities at disadvantageous times or prices to satisfy the liquidity requirements created by that activity. Successful price arbitrage might also dilute the value of fund shares held by other shareholders.

Mid-Cap Companies. Mid-cap companies are generally companies that have completed their initial start-up cycle, and in many cases have established markets and developed seasoned management teams. While mid-cap companies might offer greater opportunities for gain than larger companies, they also involve greater risk of loss. They may be more sensitive to changes in a company’s earnings expectations and may experience more abrupt and erratic price movements than larger companies. Mid-cap companies’ securities often trade in lower volumes and in many instances, are traded over-the-counter or on a regional securities exchange, where the frequency and volume of trading is substantially less than is typical for securities of larger companies traded on national securities exchanges. Therefore, the securities of mid-cap companies may be subject to wider price fluctuations and may be less liquid than securities of larger exchange-traded issuers, meaning it might be harder for the Fund to dispose of those holdings at an acceptable price when it wants to sell them. Mid-cap companies may have less established markets for their products or services and may have fewer customers and product lines than larger companies. They may have more limited access to financial resources and may not have the financial strength to sustain them through business downturns or adverse market conditions. Since mid-cap companies typically reinvest a high proportion of their earnings in their business, they may not pay dividends for some time, particularly if they are newer companies. Mid-cap companies may have unseasoned management or less depth in management skill than larger, more established companies. They may be more reliant on the efforts of particular members of their management team and management changes may pose a greater risk to the success of the business. Securities of unseasoned companies may be particularly volatile, especially in the short term and in periods of market instability, and

may have limited liquidity in a declining market. It may take a substantial period of time to realize a gain on an investment in a mid-cap company, if any gain is realized at all.

The Fund measures the market capitalization of an issuer at the time of investment. Because the relative sizes of companies change over time as the securities market changes, the Fund’s definition of what is a “mid-cap” company may change over time as well. After the Fund buys their securities, individual companies may grow and no longer fall within the Fund’s definition of a “mid-cap” issuer. Although the Fund is not required to sell the securities of companies whose market capitalizations have grown beyond the Fund’s mid-cap definition, it might sell some of those holdings to try to lower the dollar-weighted median capitalization of its portfolio. That might cause the Fund to realize capital gains on the investment and could increase taxable distributions to shareholders.

When the Fund invests in smaller company securities that might trade infrequently, investors might seek to trade Fund shares based on their knowledge or understanding of the value of those securities (this is sometimes referred to as “price arbitrage”). If such price arbitrage were successful, it might interfere with the efficient management of the Fund’s portfolio and the Fund may be required to sell securities at disadvantageous times or prices to satisfy the liquidity requirements created by that activity. Successful price arbitrage might also dilute the value of fund shares held by other shareholders.

Additional Investment Information. In anticipation of or in response to market, economic, political, or other conditions, the Fund’s portfolio managers may temporarily use a different investment strategy for defensive purposes. If the Fund’s portfolio managers do so, different factors could affect the Fund’s performance and the Fund may not achieve its investment objective.

The Fund’s investments in the types of securities and other investments described in this prospectus vary from time to time, and, at any time, the Fund may not be invested in all of the types of securities and other investments described in this prospectus. The Fund may also invest in securities and other investments not described in this prospectus.

For more information, see “Description of the Funds and Their Investments and Risks” in the Fund’s SAI.

Other Investment Strategies and Risks

The Fund can also use the investment techniques and strategies described below. The Fund might not use all of these techniques or strategies or might only use them from time to time.

Diversification and Concentration . The Fund is a diversified fund. It attempts to reduce its exposure to the risks of individual securities by diversifying its investments across a broad number of different issuers. The Fund will not concentrate its investments in issuers in any one industry. At times, however, the Fund may emphasize investments in some industries or sectors more than others. The prices of securities of issuers in a particular industry or sector may go up and down in response to changes in economic conditions, government regulations, availability of basic resources or supplies, or other events that affect that industry or sector more than others. To the extent that the Fund increases the relative emphasis of its investments in a particular industry or sector, its share values may fluctuate in response to events affecting that industry or sector. The Securities and Exchange Commission staff has taken the position that investment of more than 25% of a fund’s total assets in issuers in the same industry constitutes concentration in that industry. That limit does not apply to securities issued or guaranteed by the U.S. government or its agencies and instrumentalities. For purposes of compliance with its concentration policy, the Fund will consider portfolio investments held by underlying investment companies in which the Fund invests, to the extent that the Fund has sufficient information about such portfolio investments. The Fund will make reasonable efforts to obtain such information.

Investing in Domestic Securities. The Fund can invest in common and preferred stocks and debt securities of U.S. companies. It can also hold

U.S. corporate and government debt securities for defensive and liquidity purposes. Under normal market conditions, the Fund does not expect to invest a significant amount of its assets in securities of U.S. issuers.

Debt Securities. Debt securities can include debt securities of foreign companies and governments, including those in emerging and developing countries. However, the Fund does not invest for income and does not expect to invest significant amounts in debt securities, unless they are convertible securities considered to be “equity equivalents,” or debt securities purchased for temporary defensive or liquidity purposes.

Debt securities may be subject to the following risks:

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Interest Rate Risk. Interest rate risk is the risk that rising interest rates, or an expectation of rising interest rates in the near future, will cause the values of the Fund’s investments in debt securities to decline. The values of debt securities usually change when prevailing interest rates change. When interest rates rise, the values of outstanding debt securities generally fall, and those securities may sell at a discount from their face amount. Additionally, when interest rates rise, the decrease in values of outstanding debt securities may not be offset by higher income from new investments. When interest rates fall, the values of already-issued debt securities generally rise and the Fund’s investments in new securities may be at lower yields and may reduce the Fund’s income. The values of longer-term debt securities usually change more than the values of shorter-term debt securities when interest rates change; thus, interest rate risk is usually greater for securities with longer maturities or durations. “Zero-coupon” or “stripped” securities may be particularly sensitive to interest rate changes. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are near historic lows. Interest rate changes may have different effects on the values of mortgage-related securities because of prepayment and extension risks.

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Duration Risk. Duration is a measure of the price sensitivity of a debt security or portfolio to interest rate changes. Duration risk is the risk that longer-duration debt securities are more volatile and thus more likely to decline in price, and to a greater extent, than shorter-duration debt securities, in a rising interest-rate environment. “Effective duration” attempts to measure the expected percentage change in the value of a bond or portfolio resulting from a change in prevailing interest rates. The change in the value of a bond or portfolio can be approximated by multiplying its duration by a change in interest rates. For example, if a bond has an effective duration of three years, a 1% increase in general interest rates would be expected to cause the bond’s value to decline about 3% while a 1% decrease in general interest rates would be expected to cause the bond’s value to increase 3%. The duration of a debt security may be equal to or shorter than the full maturity of a debt security.

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Credit Risk. Credit risk is the risk that the issuer of a security might not make interest and principal payments on the security as they become due. U.S. government securities generally have lower credit risks than securities issued by private issuers or certain foreign governments. If an issuer fails to pay interest, the Fund’s income might be reduced, and if an issuer fails to repay principal, the value of the security might fall and the Fund could lose the amount of its investment in the security. The extent of this risk varies based on the terms of the particular security and the financial condition of the issuer. A downgrade in an issuer’s credit rating or other adverse news about an issuer, for any reason, can reduce the market value of that issuer’s securities.

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Credit Spread Risk . Credit spread risk is the risk that credit spreads (i.e., the difference in yield between securities that is due to differences in their credit quality) may increase when the market expects lower-grade bonds to default more frequently. Widening credit spreads may quickly reduce the market values of the Fund’s lower-rated and unrated securities. Some unrated securities may not have an active trading market or may trade less actively than rated secu-

rities, which means that the Fund might have difficulty selling them promptly at an acceptable price.

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Extension Risk. Extension risk is the risk that, if interest rates rise rapidly, prepayments on certain debt securities may occur at a slower rate than expected, and the expected maturity of those securities could lengthen as a result. Securities that are subject to extension risk generally have a greater potential for loss when prevailing interest rates rise, which could cause their values to fall sharply. Extension risk is particularly prevalent for a callable security where an increase in interest rates could result in the issuer of that security choosing not to redeem the security as anticipated on the security’s call date. Such a decision by the issuer could have the effect of lengthening the debt security’s expected maturity, making it more vulnerable to interest rate risk and reducing its market value.

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Reinvestment Risk. Reinvestment risk is the risk that when interest rates fall, the Fund may be required to reinvest the proceeds from a security’s sale or redemption at a lower interest rate. Callable bonds are generally subject to greater reinvestment risk than non-callable bonds.

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Prepayment Risk. Certain fixed-income securities (in particular mortgage-related securities) are subject to the risk of unanticipated prepayment. Prepayment risk is the risk that, when interest rates fall, the issuer will redeem the security prior to the security’s expected maturity, or that borrowers will repay the loans that underlie these fixed-income securities more quickly than expected, thereby causing the issuer of the security to repay the principal prior to expected maturity. The Fund may need to reinvest the proceeds at a lower interest rate, reducing its income. Securities subject to prepayment risk generally offer less potential for gains when prevailing interest rates fall. If the Fund buys those securities at a premium, accelerated prepayments on those securities could cause the Fund to lose a portion of its principal investment. The impact of prepayments on the price of a security may be difficult to predict and may increase the security’s price volatility. Interest-only and principal-only securities are especially sensitive to interest rate changes, which can affect not only their prices but can also change the income flows and repayment assumptions about those investments.

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Event Risk . If an issuer of debt securities is the subject of a buyout, debt restructuring, merger or recapitalization that increases its debt load, it could interfere with its ability to make timely payments of interest and principal and cause the value of its debt securities to fall.

Fixed-Income Market Risks . The fixed-income securities market can be susceptible to unusual volatility and illiquidity. Volatility and illiquidity may be more pronounced in the case of lower-rated and unrated securities. Liquidity can decline unpredictably in response to overall economic conditions or credit tightening. Increases in volatility and decreases in liquidity may be caused by a rise in interest rates (or the expectation of a rise in interest rates), which are near historic lows in the U.S. and in other countries. During times of reduced market liquidity, the Fund may not be able to readily sell bonds at the prices at which they are carried on the Fund’s books. If the Fund needed to sell large blocks of bonds to meet shareholder redemption requests or to raise cash, those sales could further reduce the bonds’ prices. An unexpected increase in Fund redemption requests (including requests from shareholders who may own a significant percentage of the Fund’s shares), which may be triggered by market turmoil or an increase in interest rates, as well as other adverse market and economic developments, could cause the Fund to sell its holdings at a loss or at undesirable prices and adversely affect the Fund’s share price and increase the Fund’s liquidity risk, Fund expenses and/or taxable distributions, if applicable. Similarly, the prices of the Fund’s holdings could be adversely affected if an investment account managed similarly to the Fund was to experience significant redemptions and that account was required to sell its holdings at an inopportune time. The liquidity of an issuer’s securities may decrease as a result of a decline in an issuer’s credit

rating, the occurrence of an event that causes counterparties to avoid transacting with the issuer, or an increase in the issuer’s cash outflows, as well as other adverse market and economic developments. A lack of liquidity or other adverse credit market conditions may hamper the Fund’s ability to sell the debt securities in which it invests or to find and purchase suitable debt instruments.

Economic and other market developments can adversely affect fixed-income securities markets in the United States, Europe and elsewhere. At times, participants in debt securities markets may develop concerns about the ability of certain issuers of debt securities to make timely principal and interest payments, or they may develop concerns about the ability of financial institutions that make markets in certain debt securities to facilitate an orderly market. Those concerns may impact the market price or value of those debt securities and may cause increased volatility in those debt securities or debt securities markets, reducing the willingness of some lenders to extend credit, and making it more difficult for borrowers to obtain financing on attractive terms (or at all). Under some circumstances, as was the case during the latter half of 2008 and early 2009, those concerns could cause reduced liquidity in certain debt securities markets.

Following the financial crisis, the Federal Reserve sought to stabilize the economy by keeping the federal funds rate near zero percent. The Federal Reserve has also purchased large quantities of securities issued or guaranteed by the U.S. government, its agencies or instrumentalities, pursuant to its monetary stimulus program known as “quantitative easing.” As the Federal Reserve has completed the tapering of its securities purchases pursuant to quantitative easing, it has recently raised interest rates on multiple occasions, and continues to consider future raises to the federal funds rate, there is a risk that interest rates may rise and cause fixed-income investors to move out of fixed-income securities, which may also increase redemptions in fixed-income mutual funds.

In addition, although the fixed-income securities markets have grown significantly in the last few decades, regulations and business practices have led some financial intermediaries to curtail their capacity to engage in trading (i.e., “market making”) activities for certain debt securities. As a result, dealer inventories of fixed-income securities, which provide an indication of the ability of financial intermediaries to make markets in fixed-income securities, are near historic lows relative to market size. Because market makers help stabilize the market through their financial intermediary services, further reductions in dealer inventories could have the potential to decrease liquidity and increase volatility in the fixed-income securities markets.

Investing in Special Situations. At times, investment benefit may be sought from what a portfolio manager considers to be “special situations,” such as mergers, reorganizations, restructurings or other unusual events, that are expected to affect a particular issuer. There is a risk that the expected change or event might not occur, which could cause the price of the security to fall, perhaps sharply. In that case, the investment might not produce the expected gains or might cause a loss. This is an aggressive investment technique that may be considered speculative.

Derivative Investments. The Fund can invest in “derivative” instruments. A derivative is an instrument whose value depends on (or is derived from) the value of an underlying security, asset, interest rate, index or currency. Derivatives may allow the Fund to increase or decrease its exposure to certain markets or risks.

The Fund may use derivatives to seek to increase its investment return or for hedging purposes. The Fund is not required to use derivatives in seeking its investment objective or for hedging and might not do so.

Options, futures, forward contracts, swaps and “structured” notes are some of the types of derivatives that the Fund may use. The Fund may also use other types of derivatives that are consistent with its investment strategies or for hedging purposes.

Hedging. Hedging transactions are intended to reduce the risks of securities in the Fund’s portfolio. At times, however, a hedging instrument’s value might not be correlated with the investment it is

intended to hedge, and the hedge might be unsuccessful. If the Fund uses a hedging instrument at the wrong time or judges market conditions incorrectly, the strategy could reduce its return or create a loss.

Risks of Derivative Investments. Derivatives may be volatile and may involve significant risks. The underlying security, obligor or other instrument on which a derivative is based, or the derivative itself, may not perform as expected. For some derivatives, it is possible to lose more than the amount invested in the derivative investment. In addition, some derivatives have the potential for unlimited loss, regardless of the size of the Fund’s initial investment. Certain derivative investments held by the Fund may be illiquid, making it difficult to close out an unfavorable position. Derivative transactions may require the payment of premiums and may increase portfolio turnover. Derivatives are subject to credit risk, since the Fund may lose money on a derivative investment if the issuer or counterparty fails to pay the amount due. In addition, changes in government regulation of derivative instruments could affect the character, timing and amount of the Fund’s taxable income or gains, and may limit or prevent the Fund from using certain types of derivative instruments as a part of its investment strategy, which could make the investment strategy more costly to implement or require the Fund to change its investment strategy. As a result of these risks, the Fund could realize little or no income or lose money from the investment, or the use of a derivative for hedging might be unsuccessful.

In addition, pursuant to rules implemented under financial reform legislation, certain over-the-counter derivatives, including certain interest rate swaps and certain credit default swaps, are required to be executed on a regulated market and/or cleared through a clearinghouse. Entering into a derivative transaction with a clearinghouse may entail further risks and costs, including the counterparty risk of the clearinghouse and the futures commission merchant through which the Fund accesses the clearinghouse.

Illiquid and Restricted Investments . Investments that do not have an active trading market, or that have legal or contractual limitations on their resale, may be considered to be “illiquid” investments. Illiquid investments may be difficult to value or to sell promptly at an acceptable price or may require registration under applicable securities laws before they can be sold publicly. Securities that have limitations on their resale are referred to as “restricted securities.” Certain restricted investments that are eligible for resale to qualified institutional purchasers may not be regarded as illiquid.

The Fund will comply with Rule 22e-4 in managing its illiquid investments. The Fund’s holdings of illiquid investments are monitored on an ongoing basis to determine whether to sell any of those investments to maintain adequate liquidity.

Portfolio Holdings

A description of Fund policies and procedures with respect to the disclosure of Fund portfolio holdings is available in the SAI, which is available at www.invesco.com/us.

F und Management

The Adv iser(s)

Invesco Advisers, Inc. serves as each Fund’s investment adviser. The Adviser manages the investment operations of the Fund as well as other investment portfolios that encompass a broad range of investment objectives, and has agreed to perform or arrange for the performance of the Fund’s day-to-day management. The Adviser is located at 1555 Peachtree Street, N.E., Atlanta, Georgia 30309. The Adviser, as successor in interest to multiple investment advisers, has been an investment adviser since 1976.

Sub-Advisers. Invesco has entered into one or more Sub-Advisory Agreements with certain affiliates to serve as sub-advisers to the Fund (the Sub-Advisers). Invesco may appoint the Sub-Advisers from time to time to provide discretionary investment management services, investment advice, and/or order execution services to the Fund. The Sub-Advisers and the Sub-Advisory Agreements are described in the SAI.

Potential New Sub-Advisers (Exemptive Order Structure) . The SEC has also granted exemptive relief that permits the Adviser, subject to certain conditions, to enter into new sub-advisory agreements with affiliated or unaffiliated sub-advisers on behalf of the Fund without shareholder approval. The exemptive relief also permits material amendments to existing sub-advisory agreements with affiliated or unaffiliated sub-advisers (including the Sub-Advisory Agreements with the Sub-Advisers) without shareholder approval. Under this structure, the Adviser has ultimate responsibility, subject to oversight of the Board, for overseeing such sub-advisers and recommending to the Board their hiring, termination, or replacement. The structure does not permit investment advisory fees paid by the Fund to be increased without shareholder approval, or change the Adviser’s obligations under the investment advisory agreement, including the Adviser’s responsibility to monitor and oversee sub-advisory services furnished to the Fund.

Exclusion of Adviser from Commodity Pool Operator Definition

With respect to the Funds, the Adviser has claimed an exclusion from the definition of “commodity pool operator” (CPO) under the Commodity Exchange Act (CEA) and the rules of the Commodity Futures Trading Commission (CFTC) and, therefore, is not subject to CFTC registration or regulation as a CPO. In addition, the Adviser is relying upon a related exclusion from the definition of “commodity trading advisor” (CTA) under the CEA and the rules of the CFTC with respect to the Funds.

The terms of the CPO exclusion require each Fund, among other things, to adhere to certain limits on its investments in “commodity interests.” Commodity interests include commodity futures, commodity options and swaps, which in turn include non-deliverable forwards. The Funds are permitted to invest in these instruments as further described in each Fund’s SAI. However, the Funds are not intended as a vehicle for trading in the commodity futures, commodity options or swaps markets. The CFTC has neither reviewed nor approved the Adviser’s reliance on these exclusions, or the Funds, their investment strategies or this prospectus.

Ad viser Compensation

The Adviser receives a fee from the Invesco Oppenheimer Capital Income Fund, calculated at the annual rate of 0.75% of the first $100 million, 0.70% of the next $100 million, 0.65% of the next $100 million, 0.60% of the next $100 million, 0.55% of the next $100 million, 0.50% of the next $4.5 billion, and 0.48% of the amount over $5 billion of average daily net assets.

The Adviser receives a fee from the Invesco Oppenheimer Developing Markets Fund, calculated at the annual rate of 1.00% of the first $250 million, 0.95% of the next $250 million, 0.90% of the next $500 million, 0.85% of the next $6.0 billion, 0.80% of the next $3.0 billion, 0.75% of the next $20 billion, 0.74% of the next $15 billion, and 0.73% of the amount over $45 billion of average daily net assets.

The Adviser receives a fee from the Invesco Oppenheimer Emerging Markets Innovators Fund, calculated at the annual rate of 1.15% of the first $500 million, 1.10% of the next $500 million, 1.05% of the next $4 billion, and 1.00% of the amount over $5 billion of average daily net assets.

The advisory fee payable by each Fund shall be reduced by any amounts paid by the Fund under the administrative services agreement with the Adviser. Invesco, not the Funds, pays sub-advisory fees, if any.

When issued, a discussion regarding the basis for the Board’s approval of the investment advisory agreement and investment sub-advisory agreements of each Fund will be available in each Fund’s next annual or semi-annual report to shareholders.

Portfoli o Managers

The following individuals are jointly and primarily responsible for the day-to-day management of each Fund’s portfolio, with the exception of Invesco Oppenheimer Developing Markets Fund, in which the portfolio

manager of the Fund is individually and primarily responsible for the Fund’s portfolio:

Invesco Oppenheimer Capital Income Fund

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Michelle Elena Borré Massick (lead manager), Portfolio Manager, who has been responsible for the Fund since 2019 and has been associated with Invesco and/or its affiliates since 2019. Prior to the commencement of the Fund’s operations, Ms. Borré Massick managed the predecessor fund since 2009 and was associated with OppenheimerFunds, a global asset management firm, since 2003.

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Krishna Memani, Portfolio Manager, who has been responsible for the Fund since 2019 and has been associated with Invesco and/or its affiliates since 2019. Prior to the commencement of the Fund’s operations, Mr. Memani managed the predecessor fund since 2009 and was associated with OppenheimerFunds, a global asset management firm, since 2009.

Invesco Oppenheimer Developing Markets Fund

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Justin Leverenz, CFA, Portfolio Manager, who has been responsible for the Fund since 2019 and has been associated with Invesco and/or its affiliates since 2019. Prior to the commencement of the Fund’s operations, Mr. Leverenz managed the predecessor fund since 2007 and was associated with OppenheimerFunds, a global asset management firm, since 2004.

Invesco Oppenheimer Emerging Markets Innovators Fund

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Heidi Heikenfeld, CFA, Portfolio Manager, who has been responsible for the Fund since 2019 and has been associated with Invesco and/or its affiliates since 2019. Prior to the commencement of the Fund’s operations, Ms. Heikenfeld managed the predecessor fund since 2014 and was associated with OppenheimerFunds, a global asset management firm, since 2000.

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Justin Leverenz, CFA, Portfolio Manager, who has been responsible for the Fund since 2019 and has been associated with Invesco and/or its affiliates since 2019. Prior to the commencement of the Fund’s operations, Mr. Leverenz managed the predecessor fund since 2014 and was associated with OppenheimerFunds, a global asset management firm, since 2004.

All Funds

A lead manager generally has final authority over all aspects of a Fund’s investment portfolio, including but not limited to, purchases and sales of individual securities, portfolio construction techniques, portfolio risk assessment, and the management of daily cash flows in accordance with portfolio holdings. The degree to which a lead manager may perform these functions, and the nature of these functions, may change from time to time.

More information on the portfolio managers may be found at www.invesco.com/us. The Web site is not part of this prospectus.

The Funds’ SAI provides additional information about the portfolio managers’ investments in the Funds, a description of the compensation structure and information regarding other accounts managed.

About The China Fund

The China Fund is a limited liability company organized under the laws of the State of Delaware and is overseen by its managing member (the Managing Member), OppenheimerFunds. Invesco Oppenheimer Developing Markets Fund is currently the sole shareholder of the China Fund; however, an exemptive order has been granted from the Securities and Exchange Commission to permit units of the China Fund to be sold or offered to other investors, including other registered investment companies that may be deemed to be affiliated parties of the Fund. The exemptive order was granted on October 31, 2017. As additional investors purchase shares of the China Fund, the China Fund will no longer be wholly-owned by Invesco

Oppenheimer Developing Markets Fund. In addition, as affiliated registered investment companies invest in the China Fund, pursuant to the exemptive order, the China Fund is subject to significant limitations on its operations notwithstanding the China Fund’s exclusion from regulation as a registered investment company, as the exemptive order contains a condition that would obligate the China Fund to comply with the substantive requirements of a number of provisions of the Investment Company Act of 1940 and the regulations thereunder.

Under the China Fund’s limited liability company operating agreement, the Managing Member has full and exclusive discretionary authority and responsibility to manage the day-to-day operations of the China Fund and to invest and reinvest its assets. The Managing Member does not receive advisory fees from the China Fund. The China Fund has also entered into separate contracts for the provision of custody, audit, and legal services, and bears the fees and expenses incurred in connection with such services. Invesco Oppenheimer Developing Markets Fund expects that the expenses borne by the China Fund will not be material in relation to the value of the Fund’s assets. It is further expected that Invesco Oppenheimer Developing Markets Fund’s investment in the China Fund will not result in the Fund’s paying duplicative fees for similar services provided to the Fund and China Fund.

Invesco Oppenheimer Developing Markets Fund applies its investment restrictions and compliance policies and procedures on a look-through basis to the China Fund, including, without limitation, those restrictions, policies and procedures relating to portfolio leverage, liquidity, brokerage, and the timing and method of the valuation of the China Fund’s portfolio investments and interests in the China Fund. The Fund’s Chief Compliance Officer oversees implementation of the policies and procedures applicable to the China Fund, and makes periodic reports to the Fund’s Board regarding the China Fund’s compliance with such restrictions, policies and procedures.

Currently, as a wholly-owned subsidiary of Invesco Oppenheimer Developing Markets Fund, the China Fund’s financial statements are consolidated with those of the Fund in the Fund’s Annual and Semi-Annual Reports provided to shareholders. Copies of the reports are provided without charge upon request as indicated on the back cover of this prospectus. Please refer to the SAI for additional information about the organization and management of the China Fund. As the exemptive order noted above has been granted, it is anticipated that additional investors will become shareholders of the China Fund and the China Fund’s financial statements will no longer be consolidated with those of the Fund.

Other Information

Div idends and Distributions

The Funds expect, based on their investment objectives and strategies, that their distributions, if any, will consist of ordinary income, capital gains, or some combination of both.

Dividends

Invesco Oppenheimer Capital Income Fund generally declares and pays dividends from net investment income, if any, quarterly.

Invesco Oppenheimer Developing Markets Fund and Invesco Oppenheimer Emerging Markets Innovators Fund generally declare and pay dividends from net investment income, if any, annually.

Capital Gains Distributions

Each Fund generally distributes long-term and short-term capital gains (net of any available capital loss carryovers), if any, at least annually. Capital gains distributions may vary considerably from year to year as a result of a Fund’s normal investment activities and cash flows. During a time of economic volatility, a Fund may experience capital losses and unrealized depreciation in value of investments, the effect of which may be to reduce or eliminate capital gains distributions for a period of time. Even though a

Fund may experience a current year loss, it may nonetheless distribute prior year capital gains.

Lim ited Fund Offering (Invesco Oppenheimer Developing Markets Fund)

Effective as of the close of business on May 24, 2019, the Invesco Oppenheimer Developing Markets Fund closed to new investors. Investors should note that the Fund reserves the right to refuse any order that might disrupt the efficient management of the Fund. Investors who were invested in the Fund on or prior to May 24, 2019, may continue to make additional purchases in their accounts. Any Employer Sponsored Retirement and Benefit Plan or its affiliated plans may continue to make additional purchases of Fund shares and may add new accounts at the plan level that may purchase Fund shares if the Employer Sponsored Retirement and Benefit Plan or its affiliated plan had invested in the Fund as of May 24, 2019. New Employer Sponsored Retirement and Benefit Plans or its affiliated plans authorized prior to May 24, 2019 will have until December 31, 2019 to fund the account. Any brokerage firm wrap program may continue to make additional purchases of Fund shares and may add new accounts at the program level that may purchase Fund shares if the brokerage firm wrap program had invested in the Fund as of May 24, 2019. The Fund may also accept investments by 529 college savings plans managed by the Adviser during this limited offering. The Fund may resume sale of shares to new investors on a future date if the Adviser determines it is appropriate.

Benchmark Descriptions

The Bloomberg Barclays U.S. Aggregate Bond Index is an unmanaged index considered representative of the US investment-grade, fixed-rate bond market.

The Custom Invesco Oppenheimer Capital Income Index is composed of 65% Bloomberg Barclays U.S. Aggregate Bond Index /35% Russell 3000 Index.

The MSCI Emerging Markets Index is an unmanaged index considered representative of stocks of developing countries.

The MSCI Emerging Markets Mid Cap Index is designed to measure equity market performance of mid-capitalization companies in emerging markets.

The Russell 3000 ^® Index is an unmanaged index considered representative of the US stock market. The Russell 3000 Index is a trademark/service mark of the Frank Russell Co. Russell ^® is a trademark of the Frank Russell Co.

The Funds are new and have no performance history as of the date of this Prospectus. As a result, the financial highlights information presented for the Funds is the financial history of the predecessor funds, which were reorganized into each respective Fund after the close of business on May 24, 2019. The financial highlights show each predecessor fund’s financial history for the past five fiscal years or, if shorter, the period of operations of the predecessor fund or any of its share classes and the six month period ended February 28, 2019. The financial highlights table is intended to help you understand each Fund’s and predecessor fund’s financial performance. Certain information reflects financial results for a single predecessor fund share.

Class R5 shares had not commenced operations prior to the Funds’ most recent fiscal year end. Only Class R5 and Class R6 shares are offered in this prospectus. The total returns in the table represent the rate that an investor would have earned (or lost) on an investment in the predecessor funds (assuming reinvestment of all dividends and distributions). The information for the six month period ended February 28, 2019 is unaudited. The information for fiscal years ended prior to May 24, 2019 has been audited by KPMG LLP, an independent registered public accounting firm, whose report, along with a predecessor fund’s financial statements, are included in the respective predecessor fund’s annual report, which is available upon request.