# EDGAR Filing Document

**Accession Number:** 0001679751
**File Stem:** 0001679751-23-000003
**Filing Date:** 2023-3
**Character Count:** 291437
**Document Hash:** 7aee8721636cc5611a2cb9833c007ba0
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001679751-23-000003.hdr.sgml**: 20230303

**ACCESSION NUMBER**: 0001679751-23-000003

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20230303

**DATE AS OF CHANGE**: 20230303

**EFFECTIVENESS DATE**: 20230303

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Pioneer ILS Bridge Fund
- **CENTRAL INDEX KEY:** 0001679751
- **IRS NUMBER:** 000000000

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-212537
- **FILM NUMBER:** 23702542

**BUSINESS ADDRESS:**
- **STREET 1:** 60 STATE STREET
- **STREET 2:** 5TH FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02109
- **BUSINESS PHONE:** 617-742-7825

**MAIL ADDRESS:**
- **STREET 1:** 60 STATE STREET
- **STREET 2:** 5TH FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02109

NO SERIES-AND-CLASSES-CONTRACTS-DATA BLOCK FOUND

Pioneer ILS Bridge Fund

Prospectus <br>Common Shares <br>March 1, 2023

Pioneer ILS Bridge Fund is a newly organized, non-diversified, closed-end management investment company.

**Investment Objective.** The fund's investment objective is total return. There can be no assurance that the fund will achieve its investment objective.

**Principal Investment Strategies.** The fund invests primarily in insurance-linked securities ("ILS"). ILS include event-linked bonds (also known as insurance-linked bonds or catastrophe bonds), quota share instruments (also known as "reinsurance sidecars"), collateralized reinsurance investments, industry loss warranties, event-linked swaps, securities of companies in the insurance or reinsurance industries, and other insurance- and reinsurance-related securities.

Because ILS are typically rated below investment grade or unrated, a substantial portion of the fund's assets ordinarily will consist of below investment grade (high yield) debt securities. Investment in securities of below investment grade quality, commonly referred to as "junk bonds," involves substantial risk of loss.

The fund is intended to serve as a vehicle to allow investors to maintain or increase their exposure to the reinsurance asset class, particularly following the occurrence of a major catastrophic event in a heavily insured region that materially impacts the need for capital by reinsurance companies.

**Investment Adviser.** Amundi Asset Management US, Inc. ("Amundi US" or the "Adviser") is the fund's investment adviser. Amundi US is an indirect, wholly owned subsidiary of Amundi and Amundi's wholly owned subsidiary, Amundi Holdings US, Inc. Amundi, one of the world's largest asset managers, is headquartered in Paris, France. As of December 31, 2022, Amundi had more than $2.03 trillion in assets under management worldwide. As of December 31, 2022, Amundi US (and its U.S. affiliates) had over $88 billion in assets under management.

**Interval Fund.** The fund is operated as an interval fund. Pursuant to the fund's interval fund structure, the fund will conduct quarterly repurchase offers of no less than 5% and no more than 25% of the fund's outstanding shares at NAV. Typically, the fund will seek to conduct such quarterly repurchase offers for 10% of the fund's outstanding shares at NAV. Even though the fund will make quarterly repurchase offers, investors should consider the fund's shares illiquid. Repurchase offers in excess of 5% are made solely at the discretion of the fund's Board of Trustees and investors should not rely on any expectation of repurchase offers in excess of 5%. It is also possible that a repurchase offer may be oversubscribed, with the result that shareholders may only be able to have a portion of their shares repurchased.

The fund's shares are sold at a price equal to their net asset value ("NAV") per share. See "Summary of fund expenses" and "Purchase of shares."

**No prior trading history. The fund's shares have no history of public trading and the fund does not currently intend to list its shares for trading on any national securities exchange. There currently is no secondary market for the fund's shares and the fund expects that no secondary market will develop. The shares are, therefore, not readily marketable. Even if such a market were to develop, shares of closed-end funds frequently trade at prices lower than their net asset value. Even though the fund will make periodic repurchase offers to repurchase a portion of its shares to provide some liquidity to shareholders, you should consider the shares to be an illiquid investment. An investment in the fund is suitable only for long-term investors who can bear the risks associated with the limited liquidity of the shares.** 

**You should carefully consider the fund's risks and investment objective, as an investment in the fund may not be appropriate for all investors and is not designed to be a complete investment program. An investment in the fund involves a high degree of risk. The insurance-linked securities in which the fund invests are considered "high yield securities" or "junk bonds." It is possible that investing in the fund may result in a loss of some or all of the amount invested. Before making an investment/allocation decision, you should**![](covers_amundipioneer2.jpg)

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

**(i) consider the suitability of this investment with respect to your investment objectives and individual situation and (ii) consider factors such as your net worth, income, age, and risk tolerance. You should not invest if you have a short-term investing horizon and/or cannot bear the loss of some or all of your investment.**

**Before buying shares of the fund, you should read the discussion of the material risks of investing in the fund under "Risk Factors" beginning on page 24. Certain of these risks are summarized in "Prospectus Summary — Risk Considerations" beginning on page 3.**

**Neither the Securities and Exchange Commission ("SEC") nor any state securities commission has approved or disapproved of these securities or determined if this Prospectus is truthful or complete. Any representation to the contrary is a criminal offense.**

**THE FUND'S SHARES DO NOT REPRESENT A DEPOSIT OR OBLIGATION OF, AND ARE NOT GUARANTEED OR ENDORSED BY, ANY BANK OR OTHER INSURED DEPOSITORY INSTITUTION AND ARE NOT FEDERALLY INSURED BY THE FEDERAL DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD OR ANY OTHER GOVERNMENT AGENCY.**

Please read this Prospectus carefully before investing and keep it for future reference. It contains important information that a prospective investor ought to know before investing in the fund. A Statement of Additional Information ("SAI"), dated March 1, 2023, containing additional information about the fund has been filed with the SEC and is incorporated by reference in its entirety into this Prospectus. A copy of the SAI can be obtained without charge by writing to the fund at Pioneer Funds, 60 State Street, Boston, MA 02109, by calling 1-844-391-3034, or from the SEC's website at https://www.sec.gov. Copies of the fund's Annual Report and Semi-Annual Report may be obtained upon request by writing to the fund, by calling 1-844-391-3034, or by visiting the fund's website at amundi.com/us.

You should rely only on the information contained this Prospectus and the fund's Statement of Additional Information. The fund has not authorized any other person to provide you with different information. If anyone provides you with different or inconsistent information, you should not rely on it. The fund is not making an offer to sell these securities in any jurisdiction where the offer or sale is not permitted. You should not assume that the information contained in this Prospectus is accurate as of any date other than the date on the front of this Prospectus. The fund's business, financial condition, results of operations and prospects may have changed since the date of this Prospectus. Subsequent to the date of this Prospectus, the fund will amend this Prospectus if, during the period this Prospectus is required to be delivered, any material information herein becomes materially inaccurate.

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**Table of Contents**

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| | |
|:---|:---|
| Prospectus summary | 1  |
| Summary of fund expenses | 12  |
| Financial highlights | 13  |
| The fund | 14  |
| Use of proceeds | 14  |
| Investment objective and principal investment strategies | 15  |
| Risk factors | 24  |
| Management of the fund | 38  |
| Dividends and distributions | 40  |
| Purchase of shares | 42  |
| Periodic repurchase offers | 43  |
| Federal income tax matters | 45  |
| Net asset value | 54  |
| Certain provisions of the agreement and declaration of trust and by-laws | 56  |
| Privacy notice | 58 |

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**Prospectus summary**

*This is only a summary. This summary does not contain all of the information that you should consider before investing in the fund's shares, especially the information set forth under the heading "Risk Factors." You should review the more detailed information contained in this Prospectus and in the Statement of Additional Information. Capitalized terms used but not defined herein shall have the meaning attributed to such term in the Statement of Additional Information.*

**THE FUND**

Pioneer ILS Bridge Fund is a non-diversified, closed-end management investment company. The fund is an interval fund that will offer to make quarterly repurchases of shares at net asset value ("NAV").

The fund is intended to serve as a vehicle to allow investors to maintain or increase their exposure to the reinsurance asset class, particularly following the occurrence of a major catastrophic event in a heavily insured region that materially impacts the need for capital by reinsurance companies.

Amundi Asset Management US, Inc. ("Amundi US" or the "Adviser") is the fund's investment adviser.

**THE OFFERING**

Shares of beneficial interest in the fund are being offered during an initial offering period at the offering price, which is $10.00 per share. The fund expects the initial offering of shares to terminate shortly following commencement of investment operations, or such earlier or later date as Amundi US may determine in its discretion. The shares are expected to be offered on a continuous basis thereafter at NAV per share. Thereafter, the fund generally expects to accept orders to purchase shares on a quarterly basis. However, the fund's ability to accept orders to purchase shares may be limited, including during periods when, in the judgment of Amundi US, appropriate investments for the fund are not available. Shares are generally available for purchase by registered investment advisers acting in a fiduciary capacity on behalf of their clients and by or through other qualified intermediaries and programs sponsored by such qualified financial intermediaries. Shares are also available to certain direct investors, which may be individuals, trusts, foundations and other institutional investors. Initial investments in the fund by or through a registered investment adviser or other qualified financial intermediary are subject to a $1,000,000 minimum per registered investment adviser or intermediary. Initial investments in the fund by direct investors are subject to a $1,000,000 minimum. Registered investment advisers and other financial intermediaries may impose different or additional minimum investment and eligibility requirements from those of the fund. Please contact your registered investment adviser or financial intermediary for more information. Amundi US or the fund's Distributor, Amundi Distributor US, Inc. (the "Distributor"), may waive these minimum investment requirements. The fund and the Distributor reserve the right to reject a purchase order for any reason.

The shares are not listed on any securities exchange and the fund does not expect there to be any secondary market for the fund's shares. Shareholders will not have the right to redeem their shares. However, as described below, in order to provide some liquidity to shareholders, the fund will conduct periodic repurchase offers for a portion of its outstanding shares.

**INTERVAL FUND; PERIODIC REPURCHASE OFFERS**

The fund has the same investment objective, investment strategies, risks, fees and expenses as Pioneer ILS Interval Fund (the "Interval Fund"), a separate closed-end management investment company advised by Amundi US that is an interval fund. Accordingly, Amundi US may in the future recommend that the fund be reorganized into the Interval Fund. The consummation and timing of any such reorganization would be subject to the approval of each fund's Board and applicable regulatory requirements. Any such reorganization would not be expected to require shareholder approval. There can be no assurance that any such reorganization would occur. As an interval fund, the fund will make periodic offers to repurchase a portion of its outstanding shares at NAV per share. The fund has adopted a fundamental policy, which cannot be changed without shareholder approval, to make repurchase offers every three months. Quarterly repurchase offers occur in the months of January, April, July and October.

Subject to applicable law and the approval of the Board of Trustees, the fund will seek to conduct such quarterly repurchase offers typically for 10% of the fund's outstanding shares at NAV. In connection with any given repurchase offer, it is possible that the fund may offer to repurchase only the minimum amount of 5% of its outstanding shares. There is no guarantee that you will be able to sell shares in an amount or at the time that you desire. The procedures that will apply to the fund's repurchase offers are described in "Periodic Repurchase Offers" below. Proceeds from the repurchase of shares will be paid in cash (in U.S. dollars).

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**INVESTMENT OBJECTIVE**

The fund's investment objective is total return. There can be no assurance that the fund will achieve its investment objective.

**PRINCIPAL INVESTMENT STRATEGIES**

The fund invests primarily in insurance-linked securities ("ILS"). ILS may include event-linked bonds (also known as insurance-linked bonds or catastrophe bonds), quota share instruments (also known as "reinsurance sidecars"), collateralized reinsurance investments, industry loss warranties, event-linked swaps, securities of companies in the insurance or reinsurance industries, and other insurance- and reinsurance-related securities.

Because ILS are typically rated below investment grade or unrated, a substantial portion of the fund's assets ordinarily will consist of below investment grade (high yield) debt securities. Investment in securities of below investment grade quality, commonly referred to as "junk bonds," involves substantial risk of loss. Securities in which the fund may invest may also be subordinated or "junior" to more senior securities of the issuer.

Amundi Asset Management US, Inc. ("Amundi US" or the "Adviser") is the fund's investment adviser. In selecting ILS for investment, Amundi US considers their relative return potential in view of their expected relative risk, using quantitative and qualitative analysis. Amundi US's analysis may consider various factors, such as expected loss, probability of occurrence or loss, trigger term (measurement of loss event specific to an instrument) or other terms of an instrument, sponsor quality, deal structure, alignment of interests between the fund and the sponsoring insurance company, and model accuracy. Amundi US's analysis guides Amundi US in determining the desired allocation of reinsurance-related securities by issuer, peril and geographic exposure. Amundi US also may consider the financial condition and risks associated with the sponsoring insurance company. Amundi US may rely on information and analysis obtained from brokers, dealers and ratings organizations, among other sources.

Amundi US may sell a portfolio security when it believes the security no longer will contribute to meeting the fund's investment objective. Amundi US makes that determination based on the same criteria it uses to select portfolio securities.

**Portfolio investments** <br>Normally, the fund invests at least 80% of its net assets (plus the amount of borrowings, if any, for investment purposes) in ILS. Derivative instruments that provide exposure to such ILS or have similar economic characteristics may be used to satisfy the fund's 80% policy. ILS include event-linked bonds (also known as insurance-linked bonds or catastrophe bonds), structured reinsurance investments such as quota share instruments (a form of proportional reinsurance whereby an investor participates in the premiums and losses of a reinsurer's portfolio of catastrophe-oriented policies, sometimes referred to as "reinsurance sidecars") and collateralized reinsurance investments, industry loss warranties, event-linked swaps, securities of companies in the insurance or reinsurance industries, and other insurance- and reinsurance-related securities.

Reinsurance-related securities are typically below investment grade, or unrated, and may be referred to as "junk bonds."

The fund has no limit as to the maturity of the securities in which it invests. Event-linked bonds typically have maturities between three and five years, while quota shares, collateralized reinsurance investments and industry loss warranties typically have maturities that generally do not exceed two years. Maturity is a measure of the time remaining until final payment on the security is due.

The fund will provide written notice to shareholders at least 60 days prior to any change to the requirement that it invest at least 80% of its assets in ILS.

The fund may invest in ILS issued by non-U.S. issuers.

The fund may, but is not required to, use derivatives, such as currency forward contracts and bond and interest rate futures. The fund may use derivatives for a variety of purposes, including: in an attempt to hedge against adverse changes in the market price of securities, interest rates or currency exchange rates; as a substitute for purchasing or selling securities; to seek event-linked exposure; to attempt to increase the fund's return as a non-hedging strategy that may be considered speculative; to manage portfolio characteristics; and as a cash flow management technique. The fund may choose not to make use of derivatives for a variety of reasons, and any use may be limited by applicable law and regulations. The fund also may hold cash or other short-term investments.

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**Prospectus summary**

To the extent consistent with the repurchase liquidity requirement of an interval fund, the fund may invest without limit in illiquid securities.

The Adviser integrates environmental, social and corporate governance (ESG) considerations into its investment research process by evaluating the business models and practices of issuers and their ESG-related risks. The Adviser believes ESG analysis is a meaningful facet of fundamental research, the process of evaluating an issuer based on its financial position, business operations, competitive standing and management. This process considers ESG information, where available, in assessing an investment's performance potential. The Adviser generally considers ESG information in the context of an issuer's respective sector or industry. The Adviser may consider ESG ratings provided by third parties or internal sources, as well as issuer disclosures and public information, in evaluating issuers. ESG considerations are not a primary focus of the fund, and the weight given by the Adviser to ESG considerations in making investment decisions will vary and, for any specific decision, they may be given little or no weight. Notwithstanding the foregoing, the Adviser generally will not invest fund assets in (i) companies that the Adviser determines have significant involvement in the manufacturing of complete tobacco products, (ii) companies engaged in the production, sale, storage of, or providing services for, certain controversial weapons, including chemical, biological and depleted uranium weapons and certain antipersonnel mines and cluster bombs, or (iii) companies with involvement in the production or sale of nuclear weapons.

**RISK CONSIDERATIONS**

The following is a summary of the principal risks of investing in the fund. You should read the fuller discussion in this Prospectus under "Risk Factors" on page 25.

**General**. The fund is a non-diversified, closed-end management investment company designed primarily as a long-term investment and not as a trading tool. The fund is not a complete investment program and should be considered only as an addition to an investor's existing portfolio of investments. Because the fund invests predominantly in ILS of U.S. and non-U.S. issuers, which are high yield debt securities, an investment in the fund's shares is speculative in that it involves a high degree of risk. Due to uncertainty inherent in all investments, there can be no assurance that the fund will achieve its investment objective. ILS in which the fund invests may only have limited liquidity, or may be illiquid. In addition, even though the fund will make periodic offers to repurchase a portion of its outstanding shares to provide some liquidity to shareholders, shareholders should consider the fund to be an illiquid investment.

**No operating history.** The fund is a non-diversified, closed-end management investment company and has no operating history or history of public trading.

**Risks of investing in insurance-linked securities.** The fund could lose a portion or all of the principal it has invested in an ILS, and the right to additional interest and/or dividend payments with respect to the security, upon the occurrence of one or more trigger events, as defined within the terms of the ILS. Trigger events may include natural or other perils of a specific size or magnitude that occur in a designated geographic region during a specified time period, and/or that involve losses or other metrics that exceed a specific amount. Natural perils include disasters such as hurricanes, earthquakes, windstorms, fires, floods and other weather-related occurrences, as well as mortality or longevity events. Non-natural perils include disasters resulting from human-related activity such as commercial and industrial accidents or business interruptions. Major natural disasters (such as in the cases of Super Typhoon Goni in the Philippines in 2020, monsoon flooding in China in 2020, Hurricane Irma in Florida and the Caribbean in 2017, Super Storm Sandy in 2012, and Hurricane Ian in Florida in 2022) or commercial and industrial accidents (such as aviation disasters and oil spills) can result in significant losses, and investors in ILS with exposure to such natural or other disasters may also experience substantial losses. If the likelihood and severity of natural and other large disasters increase, the risk of significant losses to reinsurers may increase. Typically, one significant triggering event (even in a major metropolitan area) will not result in financial failure to a reinsurer. However, a series of major triggering events could cause the failure of a reinsurer. Similarly, to the extent the fund invests in ILS for which a triggering event occurs, losses associated with such event will result in losses to the fund and a series of major triggering events affecting a large portion of the ILS held by the fund will result in substantial losses to the fund. The fund may also invest in ILS that are subject to "indemnity triggers." An indemnity trigger is a trigger based on the actual losses of the ceding sponsor (i.e., the party seeking reinsurance). ILS subject to indemnity triggers are often regarded as being subject to potential moral hazard, since such ILS are triggered by actual losses of the ceding sponsor and the ceding sponsor may have an incentive to take actions and/or risks that would have an adverse effect on the fund. For example, a ceding sponsor might inflate its total claims paid above the ILS trigger level in order to share its losses with investors in the ILS. Thus, bonds with indemnity triggers may be subject to

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moral hazard, because the trigger depends on the ceding sponsor to properly identify and calculate losses that do and do not apply in determining whether the trigger amount has been reached. In short, "moral hazard" refers to this potential for the sponsor to influence bond performance, as payouts are based on the individual policy claims against the sponsor and the way the sponsor settles those claims. There is no way to accurately predict whether a trigger event will occur and, accordingly, ILS carry significant risks. In addition to the specified trigger events, ILS may expose the fund to other risks, including but not limited to issuer (credit) default, adverse regulatory or jurisdictional interpretations and adverse tax consequences.

**Risks of investing in structured reinsurance investments.** The fund invests in ILS that are special purpose vehicles ("SPVs") or similar instruments structured to comprise a portion of a reinsurer's catastrophe-oriented business, known as quota share instruments (sometimes referred to as reinsurance sidecars), or to provide reinsurance relating to specific risks to insurance or reinsurance companies through a collateralized instrument, known as collateralized reinsurance. Quota shares instruments and other structured reinsurance investments generally will be considered illiquid securities by the fund. Structured reinsurance investments are typically more customizable but less liquid investments than event-linked bonds. Like event-linked bonds, an investor in structured reinsurance investments participates in the premiums and losses associated with underlying reinsurance contracts.

Structured reinsurance investments are subject to the same risks as event-linked bonds and other ILS. In addition, because quota share instruments represent an interest in a basket of underlying reinsurance contracts, the fund has limited transparency into the individual underlying contracts and therefore must rely upon the risk assessment and sound underwriting practices of the insurer and/or reinsurer. Structured reinsurance investments may be difficult to value.

**ILS market and reinvestment risk.** The size of the ILS market may change over time, which may limit the availability of ILS for investment by the fund. The original issuance of ILS in general, including ILS with desired instrument or risk characteristics, may fluctuate depending on the capital and capacity needs of reinsurers as well as the demand for ILS by institutional investors. The availability of ILS in the secondary market also may be limited by supply and demand dynamics and prevailing economic conditions. To the extent ILS held by the fund mature, or the fund must sell securities in connection with share repurchases, the fund may be required to hold more cash or short-term instruments than it normally would until attractive ILS becomes available. Holding excess cash and/or reinvestment in securities that are lower yielding or less desirable than securities sold may negatively affect performance.

**Market risk.** The market prices of securities or other assets held by the fund may go up or down, sometimes rapidly or unpredictably, due to general market conditions, such as real or perceived adverse economic, political, or regulatory conditions, political instability, recessions, inflation, changes in interest or currency rates, lack of liquidity in the bond markets, the spread of infectious illness or other public health issues, armed conflict, market disruptions caused by tariffs, trade disputes, sanctions or other government actions, or other factors or adverse investor sentiment. If the market prices of the fund's securities and assets fall, the value of your investment will go down. A change in financial condition or other event affecting a single issuer or market may adversely impact securities markets as a whole.

In the past decade, financial markets throughout the world have experienced increased volatility, depressed valuations, decreased liquidity and heightened uncertainty. Governmental and non-governmental issuers have defaulted on, or been forced to restructure, their debts. These conditions may continue, recur, worsen or spread. Events that have contributed to these market conditions include, but are not limited to, major cybersecurity events; geopolitical events (including wars, terror attacks and economic sanctions); measures to address budget deficits; downgrading of sovereign debt; changes in oil and commodity prices; dramatic changes in currency exchange rates; global pandemics; and public sentiment. The fallout from the COVID-19 pandemic and subsequent variants of COVID-19, and the long-term impact on economies, markets, industries and individual issuers, are not known. Some sectors of the economy and individual issuers have experienced or may experience particularly large losses. Periods of extreme volatility in the financial markets; reduced liquidity of many instruments; and disruptions to supply chains, consumer demand and employee availability, may continue for some time.

Raising the ceiling on U.S. government debt has become increasingly politicized. Any failure to increase the ceiling on U.S. government debt could lead to a default on U.S. government obligations, with unpredictable consequences for economies and markets in the U.S. and elsewhere. Recently, inflation and interest rates have increased and may rise further. These circumstances could adversely affect the value and liquidity of the fund's investments, impair the fund's

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**Prospectus summary**

ability to satisfy redemption requests, and negatively impact the fund's performance. Following Russia's invasion of Ukraine, Russian securities have lost all, or nearly all, their market value. Other securities or markets could be similarly affected by past or future political, geopolitical or other events or conditions.

Governments and central banks, including the U.S. Federal Reserve, have taken extraordinary and unprecedented actions to support local and global economies and the financial markets. These actions have resulted in significant expansion of public debt, including in the U.S. The consequences of high public debt, including its future impact on the economy and securities markets, may not be known for some time. U.S. Federal Reserve or other U.S. or non-U.S. governmental or central bank actions, including increases or decreases in interest rates, or contrary actions by different governments, could negatively affect financial markets generally, increase market volatility and reduce the value and liquidity of securities in which the fund invests. Policy and legislative changes in the U.S. and in other countries are affecting many aspects of financial regulation, and these and other events affecting global markets, such as the United Kingdom's exit from the European Union (or Brexit), potential trade imbalances with China or other countries or sanctions or other government actions against Russia, other nations or individuals or companies (or their countermeasures), may contribute to decreased liquidity and increased volatility in the financial markets. The impact of these changes on the markets, and the implications for market participants, may not be fully known for some time.

The United States and other countries are periodically involved in disputes over trade and other matters, which may result in tariffs, investment restrictions and adverse impacts on affected companies and securities. For example, the United States has imposed tariffs and other trade barriers on Chinese exports, has restricted sales of certain categories of goods to China, and has established barriers to investments in China. Trade disputes may adversely affect the economies of the United States and its trading partners, as well as companies directly or indirectly affected and financial markets generally. The United States government has prohibited U.S. persons, such as the fund, from investing in Chinese companies designated as related to the Chinese military. These and possible future restrictions could limit the fund's opportunities for investment and require the sale of securities at a loss or make them illiquid. Moreover, the Chinese government is involved in a longstanding dispute with Taiwan that has included threats of invasion. If the political climate between the United States and China does not improve or continues to deteriorate, if China were to attempt unification of Taiwan by force, or if other geopolitical conflicts develop or get worse, economies, markets and individual securities may be severely affected both regionally and globally, and the value of the fund's assets may go down.

Economies and financial markets throughout the world are increasingly interconnected. Economic, financial or political events, trading and tariff arrangements, armed conflict including Russia's military invasion of Ukraine, terrorism, natural disasters, infectious illness or public health issues, cybersecurity events, supply chain disruptions, sanctions against Russia, other nations or individuals or companies and possible countermeasures, and other circumstances in one country or region could have profound impacts on other countries or regions and on global economies or markets. As a result, whether or not the fund invests in securities of issuers located in or with significant exposure to the countries or regions directly affected, the value and liquidity of the fund's investments may be negatively affected. The fund may experience a substantial or complete loss on any security or derivative position.

The fund's investments, payment obligations and financing terms may be based on floating rates, such as LIBOR (London Interbank Offered Rate) or Secured Overnight Financing Rate (SOFR). ICE Benchmark Administration, the administrator of LIBOR, ceased publication of most LIBOR settings on a representative basis at the end of 2021 and is expected to cease publication of a majority of U.S. dollar LIBOR settings on a representative basis after June 30, 2023. In addition, global regulators have announced that, with limited exceptions, no new LIBOR-based contracts should be entered into after 2021. The transition away from LIBOR may lead to increased volatility and illiquidity in markets that currently rely on LIBOR and may adversely affect the fund's performance. The transition may also result in a reduction in the value of certain LIBOR-based investments held by the fund or reduce the effectiveness of related transactions such as hedges.

**High yield or "junk" bond risk.** Debt securities that are below investment grade, called "junk bonds," are speculative, have a higher risk of default or are already in default, tend to be less liquid and are more difficult to value than higher grade securities. Junk bonds tend to be volatile and more susceptible to adverse events and negative sentiments. These risks are more pronounced for securities that are already in default.

**Interest rate risk**.The market prices of the fund's fixed income securities may fluctuate significantly when interest rates change. The value of your investment will generally go down when interest rates rise. A rise in rates tends to have a greater impact on the prices of longer term or duration securities. For example, if interest rates increase by 1%, the

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value of a fund's portfolio with a portfolio duration of ten years would be expected to decrease by 10%, all other things being equal. In recent years, interest rates and credit spreads in the U.S. have been at historic lows. The U.S. Federal Reserve has raised certain interest rates, and interest rates may continue to go up. A general rise in interest rates could adversely affect the price and liquidity of fixed income securities and could also result in increased redemptions from the fund. The maturity of a security may be significantly longer than its effective duration. A security's maturity and other features may be more relevant than its effective duration in determining the security's sensitivity to other factors affecting the issuer or markets generally, such as changes in credit quality or in the yield premium that the market may establish for certain types of securities (sometimes called "credit spread"). In general, the longer its maturity the more a security may be susceptible to these factors. When the credit spread for a fixed income security goes up or "widens," the value of the security will generally go down.

Rising interest rates can lead to increased default rates, as issuers of floating rate securities find themselves faced with higher payments. Unlike fixed rate securities, floating rate securities generally will not increase in value if interest rates decline. Changes in interest rates also will affect the amount of interest income the fund earns on its floating rate investments.

**Credit risk.** If an issuer or guarantor of a security held by the fund or a counterparty to a financial contract with the fund defaults on its obligation to pay principal and/or interest, has its credit rating downgraded or is perceived to be less creditworthy, or the credit quality or value of any underlying assets declines, the value of your investment will decline. In addition, the fund may incur expenses and suffer delays in an effort to protect the fund's interest in securities experiencing these events. Changes in actual or perceived creditworthiness may occur quickly. The fund could be delayed or hindered in its enforcement of rights against an issuer, guarantor or counterparty. A security may change in price for a variety of reasons. For example, floating rate securities may have final maturities of ten or more years, but their effective durations will tend to be very short. If there is an adverse credit event, or a perceived change in the issuer's creditworthiness, these securities could experience a far greater negative price movement than would be predicted by the change in the security's yield in relation to their effective duration. The fund evaluates the credit quality of issuers and counterparties prior to investing in securities. Credit risk is broadly gauged by the credit ratings of the securities in which the fund invests. However, ratings are only the opinions of the companies issuing them and are not guarantees as to quality. Securities rated in the lowest category of investment grade (Baa/BBB) may possess certain speculative characteristics.

**Prepayment or call risk.** Many issuers have a right to prepay their securities. If interest rates fall, an issuer may exercise this right. If this happens, the fund will not benefit from the rise in market price that normally accompanies a decline in interest rates, and will be forced to reinvest prepayment proceeds at a time when yields on securities available in the market are lower than the yield on the prepaid security. The fund also may lose any premium it paid on the security.

**Risk of illiquid investments.** Certain securities and derivatives held by the fund may be or become impossible or difficult to purchase, sell or unwind. Illiquid securities and derivatives also may be difficult to value. Liquidity risk may be magnified in a rising interest rate environment. If the fund is forced to sell an illiquid asset or unwind a derivatives position, the fund may suffer a substantial loss or may not be able to sell at all.

**ESG risk.** The fund's Adviser may consider ESG information in its investment research process. This may mean forgoing some investment opportunities available to funds that do not consider ESG information. In considering ESG information, the Adviser may use third party ESG ratings information that it believes to be reliable, but such information may not be accurate or complete, or may be biased. ESG considerations are not a primary focus of the fund, and the weight given by the Adviser to ESG considerations in making investment decisions will vary and, for any specific decision, they may be given little or no weight.

**Risks of non-U.S. investments.** Investing in non-U.S. issuers, or in U.S. issuers that have significant exposure to foreign markets, may involve unique risks compared to investing in securities of U.S. issuers. These risks are more pronounced for issuers in emerging markets or to the extent that the fund invests significantly in one region or country. These risks may include different financial reporting practices and regulatory standards, less liquid trading markets, extreme price volatility, currency risks, changes in economic, political, regulatory and social conditions, military conflicts and sanctions, terrorism, sustained economic downturns, financial instability, reduction of government or central bank support, inadequate accounting standards, tariffs, tax disputes or other tax burdens, nationalization or expropriation of assets, arbitrary application of laws and regulations or lack of rule of law, and investment and repatriation restrictions. Lack of information and less market regulation also may affect the value of these securities. Withholding and other non-U.S. taxes may decrease the fund's return. Non-U.S. issuers may be located in parts of the world that have historically

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**Prospectus summary**

been prone to natural disasters. Emerging market economies tend to be less diversified than those of more developed countries. They typically have fewer medical and economic resources than more developed countries and thus they may be less able to control or mitigate the effects of a pandemic. Investing in depositary receipts is subject to many of the same risks as investing directly in non-U.S. issuers. Depositary receipts may involve higher expenses and may trade at a discount (or premium) to the underlying security.

A number of countries in the European Union (EU) have experienced, and may continue to experience, severe economic and financial difficulties. In addition, the United Kingdom has withdrawn from the EU (commonly known as "Brexit"). The range and potential implications of possible political, regulatory, economic, and market outcomes of Brexit cannot be fully known but could be significant, potentially resulting in increased volatility, illiquidity and potentially lower economic growth in the affected markets, which will adversely affect the fund's investments.

If one or more stockholders of a supranational entity such as the World Bank fail to make necessary additional capital contributions, the entity may be unable to pay interest or repay principal on its debt securities.

Sanctions or other government actions against certain countries could negatively impact the fund's investments in securities that have exposure to those countries. Circumstances that impact one country could have profound impacts on other countries and on global economies or markets. China and other developing market countries may be subject to considerable degrees of economic, political and social instability. The U.S. government has imposed restrictions on U.S. investor participation in certain Chinese investments. These matters could adversely affect China's economy. In addition, China's long-running conflict over Taiwan's sovereignty, border disputes with many neighbors and historically strained relations with other Asian countries could result in military conflict that could adversely impact the economies of China and other Asian countries, disrupt supply chains, and severely affect global economies and markets.

Russia launched a large-scale invasion of Ukraine on February 24, 2022. In response to the military action by Russia, various countries, including the U.S., the United Kingdom, and European Union, issued broad-ranging economic sanctions against Russia and Belarus and certain companies and individuals. Russia has taken retaliatory actions, including preventing repatriation of capital by U.S. and other investors. Since then, Russian securities have lost all, or nearly all, their market value, and many other issuers, securities and markets have been adversely affected. The ongoing conflict has resulted in significant market disruptions, including in certain markets, industries and sectors, such as the oil and natural gas markets, and negatively affected global supply chains, food supplies, inflation and global growth. The U.S. and other countries may impose sanctions on other countries, companies and individuals in light of Russia's military invasion. The extent and duration of the military action or future escalation of such hostilities, the extent and impact of existing and future sanctions, market disruptions and volatility, and the result of any diplomatic negotiations cannot be predicted. These and any related events could have a significant impact on the value and liquidity of certain fund investments, on fund performance and the value of an investment in the fund.

**Derivatives risk.** Using swaps, futures, forwards and other derivatives exposes the fund to special risks and costs and may result in losses to the fund, even when used for hedging purposes. Using derivatives can increase losses and reduce opportunities for gain when market prices, interest rates or currencies, or the derivative instruments themselves, behave in a way not anticipated by the fund, especially in abnormal market conditions. Using derivatives can have a leveraging effect (which may increase investment losses) and increase the fund's volatility, which is the degree to which the fund's share price may fluctuate within a short time period. Certain derivatives have the potential for unlimited loss, regardless of the size of the fund's initial investment. Derivatives are generally subject to the risks applicable to the assets, rates, indices or other indicators underlying the derivative. If changes in a derivative's value do not correspond to changes in the value of the fund's other investments or do not correlate well with the underlying assets, rate or index, the fund may not fully benefit from, or could lose money on, or could experience unusually high expenses as a result of, the derivative position. The other parties to certain derivative transactions present the same types of credit risk as issuers of fixed income securities. Derivatives also tend to involve greater liquidity risk and they may be difficult to value. The fund may be unable to terminate or sell its derivative positions. In fact, many over-the-counter derivatives will not have liquidity beyond the counterparty to the instrument. The fund also may have to sell assets at inopportune times to satisfy its obligations. Use of derivatives or similar instruments may have different tax consequences for the fund than an investment in the underlying security, and those differences may affect the amount, timing and character of income

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distributed to shareholders. The fund's use of derivatives may also increase the amount of taxes payable by shareholders. Risks associated with the use of derivatives are magnified to the extent that an increased portion of the fund's assets are committed to derivatives in general or are invested in just one or a few types of derivatives.

The U.S. government and foreign governments have adopted and implemented or are in the process of adopting and implementing regulations governing derivatives markets, including mandatory clearing of certain derivatives, margin and reporting requirements. The ultimate impact of the regulations remains unclear. Additional regulation of derivatives may make derivatives more costly, may limit their availability or utility or otherwise adversely affect their performance, or may disrupt markets. The fund may be exposed to additional risks as a result of the additional regulations. The extent and impact of the regulations are not yet fully known and may not be for some time.

The fund will be required to maintain its positions with a clearing organization through one or more clearing brokers. The clearing organization will require the fund to post margin and the broker may require the fund to post additional margin to secure the fund's obligations. The amount of margin required may change from time to time. In addition, cleared transactions may be more expensive to maintain than over-the-counter transactions and may require the fund to deposit larger amounts of margin. The fund may not be able to recover margin amounts if the broker has financial difficulties. Also, the broker may require the fund to terminate a derivatives position under certain circumstances. This may cause the fund to lose money. The fund's ability to use certain derivative instruments currently is limited by Commodity Futures Trading Commission rules.

**Forward foreign currency transactions risk.** The fund may not fully benefit from or may lose money on forward foreign currency transactions if changes in currency rates do not occur as anticipated or do not correspond accurately to changes in the value of the fund's holdings, or if the counterparty defaults. Such transactions may also prevent the fund from realizing profits on favorable movements in exchange rates. Risk of counterparty default is greater for counterparties located in emerging markets.

**Leveraging risk.** The value of your investment may be more volatile and other risks tend to be compounded if the fund borrows or uses derivatives or other investments that have embedded leverage. Leverage generally magnifies the effect of any increase or decrease in the value of the fund's underlying assets and creates a risk of loss of value on a larger pool of assets than the fund would otherwise have, potentially resulting in the loss of all assets. Engaging in such transactions may cause the fund to liquidate positions when it may not be advantageous to do so to satisfy its obligations. New derivatives regulations require the fund, to the extent it uses derivatives to a material extent, to, among other things, comply with certain overall limits on leverage. These regulations may limit the ability of the fund to pursue its investment strategies and may not be effective to mitigate the fund's risk of loss from derivatives.

**Tax and regulated investment company qualification risk.** As described in more detail below, in order to qualify for the favorable tax treatment generally available to regulated investment companies, at least 90% of the fund's gross income each taxable year must consist of qualifying income, the fund must meet certain asset diversification tests at the end of each fiscal quarter, and the fund must meet certain distribution requirements for each taxable year.

The tax treatment of certain ILS is not entirely clear. Certain of the fund's investments (including, potentially, certain ILS) may generate income that is not qualifying income. The fund might generate more non-qualifying income than anticipated, might not be able to generate qualifying income in a particular taxable year at levels sufficient to meet the qualifying income test, or might not be able to determine the percentage of qualifying income it has derived for a taxable year until after year-end. The fund may determine not to make an investment that it otherwise would have made, or may dispose of an investment it otherwise would have retained (potentially resulting in the recognition of taxable gain or loss, and potentially under disadvantageous circumstances), in an effort to meet the qualifying income test.

Certain investments made by the fund (including certain ILS) may be treated as equity in passive foreign investment companies ("PFICs") for federal income tax purposes. In general, a PFIC is a foreign corporation (i) that receives at least 75% of its annual gross income from passive sources (such as interest, dividends, certain rents and royalties, or capital gains) or (ii) where at least 50% of its assets (computed based on average fair market value) either produce or are held for the production of passive income. If the fund acquires any equity interest in a PFIC, the fund could be subject to U.S. federal income tax and additional interest charges on "excess distributions" received from the PFIC or on gain from the sale of stock in the PFIC, even if all income or gain actually received by the fund is timely distributed to its shareholders. The fund would not be able to pass through to its shareholders any credit or deduction for such a tax. A "qualified

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**Prospectus summary**

electing fund" election or a "mark to market" election may be available that would ameliorate these adverse tax consequences, but such elections could require the fund to recognize taxable income or gain (which would be subject to the distribution requirements applicable to regulated investment companies, as described above) without the concurrent receipt of cash. In order to satisfy the distribution requirements and avoid a tax on the fund, the fund may be required to liquidate portfolio securities that it might otherwise have continued to hold (potentially resulting in the recognition of taxable gain or loss, and potentially under disadvantageous circumstances), or the fund may be required to borrow cash. Gains from the sale of stock of PFICs may also be treated as ordinary income. In order for the fund to make a qualified electing fund election with respect to a PFIC, the PFIC would have to agree to provide certain tax information to the fund on an annual basis, which it might not agree to do. The fund may limit and/or manage its holdings in PFICs to limit its tax liability or maximize its after-tax return from these investments.

If a sufficient portion of the interests in a foreign issuer (including certain ILS issuers) is held or deemed held by the fund, independently or together with certain other U.S. persons, that issuer may be treated as a "controlled foreign corporation" (a "CFC") with respect to the fund, in which case the fund will be required to take into account each year, as ordinary income, its share of certain portions of that issuer's income, whether or not such amounts are distributed. The fund may have to dispose of its portfolio securities (potentially resulting in the recognition of taxable gain or loss, and potentially under disadvantageous circumstances) to generate cash, or may have to borrow the cash, to meet its distribution requirements and avoid fund-level taxes. In addition, some fund gains on the disposition of interests in such an issuer may be treated as ordinary income. The fund may limit and/or manage its holdings in issuers that could be treated as CFCs in order to limit its tax liability or maximize its after-tax return from these investments.

If the fund were to fail to qualify for treatment as a regulated investment company, it would generally be taxed in the same manner as an ordinary corporation, and distributions to its shareholders generally would not be deductible by the fund in computing its taxable income. Under certain circumstances, the fund may be able to cure a failure to meet the qualifying income test or the diversification test if such failure was due to reasonable cause and not willful neglect, but in order to do so the fund may incur a significant penalty tax that would reduce (and potentially could eliminate) the fund's returns.

**Valuation risk.** Nearly all of the fund's investments are valued using a fair value methodology. The sales price the fund could receive for any particular portfolio investment may differ from the fund's valuation of the investment, particularly for illiquid securities and securities that trade in thin or volatile markets. These differences may increase significantly and affect fund investments more broadly during periods of market volatility. Investors who purchase or redeem fund shares may receive fewer or more shares or lower or higher redemption proceeds than they would have received if the securities had not been fair-valued or if a different valuation methodology had been used. The fund's ability to value its investments may also be impacted by technological issues and/or errors by pricing services or other third party service providers.

**Concentration risk.** A fund that invests a significant percentage of its assets in a single industry may be particularly susceptible to adverse economic, regulatory or other events affecting that industry and may be more risky than a fund that does not concentrate in an industry.

Industries in the financial segment, such as insurance companies, may be sensitive to changes in interest rates, credit rating downgrades, decreased liquidity in credit markets, and general economic activity and are generally subject to extensive government regulation.

**Non-diversification risk.** The fund is not diversified, which means that it can invest a higher percentage of its assets in the securities of any one or more issuers than a diversified fund. Being non-diversified may magnify the fund's losses from adverse events affecting a particular issuer.

**Cybersecurity risk.** Cybersecurity failures by and breaches of the fund's Adviser, transfer agent, distributor, custodian, fund accounting agent or other service providers may disrupt fund operations, interfere with the fund's ability to calculate its NAV, prevent fund shareholders from purchasing shares, submitting repurchase requests, or receiving distributions or receiving timely information regarding the fund or their investment in the fund, cause loss of or unauthorized access to private shareholder information, and result in financial losses to the fund and its shareholders, regulatory fines, penalties, reputational damage, or additional compliance costs.

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**Expense risk.** Your actual costs of investing in the fund may be higher than the expenses shown in "Annual fund operating expenses" for a variety of reasons. For example, expense ratios may be higher than those shown if overall net assets decrease. Net assets are more likely to decrease and fund expense ratios are more likely to increase when markets are volatile.

**Portfolio selection risk.** The Adviser's judgment about the quality, relative yield, relative value or market trends affecting a particular sector or region, market segment, security, industry or about interest rates or other market factors may prove to be incorrect or may not produce the desired results, or there may be imperfections, errors or limitations in the models, tools and information used by the Adviser.

**Repurchase offers risk.** The risk that the fund's repurchases of shares may hurt investment performance by forcing the fund to maintain a higher percentage of its assets in liquid investments or to liquidate certain investments when it is not desirable to do so. Repurchases may be oversubscribed, preventing shareholders from selling some or all of their shares back to the fund.

**Anti-takeover provisions.** The fund's Agreement and Declaration of Trust and by-laws include provisions that could limit the ability of other entities or persons to acquire control of the fund or convert the fund to open-end status.

To learn more about the fund's investments and risks, you should obtain and read the statement of additional information. Please note that there are many other factors that could adversely affect your investment and that could prevent the fund from achieving its goals.

**INVESTMENT ADVISER**

Amundi Asset Management US, Inc. ("Amundi US" or the "Adviser") is the fund's investment Adviser. The Adviser is responsible on a day-to-day basis for investment of the fund's portfolio in accordance with its investment objective and principal investment strategies. The Adviser's main office is at 60 State Street, Boston, Massachusetts 02109.

Amundi US is an indirect, wholly owned subsidiary of Amundi and Amundi's wholly owned subsidiary, Amundi USA, Inc. Amundi, one of the world's largest asset managers, is headquartered in Paris, France. As of December 31, 2022, Amundi had more than $2.03 trillion in assets under management worldwide. As of December 31, 2022, Amundi US (and its U.S. affiliates) had over $88 billion in assets under management.

The firm's U.S. mutual fund investment history includes creating in 1928 one of the first mutual funds.

The fund pays the Adviser a fee for its investment advisory services equal on an annual basis to 1.75% of the fund's average daily net assets. This fee is accrued daily and paid monthly. See "Management of the Fund."

The fund does not currently charge a repurchase fee, and it does not currently expect to impose a repurchase fee. However, the fund may charge a repurchase fee of up to 2.0%, which the fund would retain to help offset non-de minimis estimated costs related to the repurchase (such as bid to ask spreads) incurred by the fund, directly or indirectly, as a result of repurchasing shares, thus allocating estimated transaction costs to the shareholder whose shares are being repurchased. The fund may introduce, or modify the amount of, a repurchase fee at any time. The fund may also waive or reduce the repurchase fee if the Adviser determines that the repurchase is offset by a corresponding purchase or if for other reasons the fund will not incur transaction costs or will incur reduced transaction costs.

**ADMINISTRATOR, CUSTODIAN, FUND ACCOUNTING AGENT, TRANSFER AGENT AND DIVIDEND DISBURSING AGENT**

Amundi Asset Management US, Inc. serves as the fund's administrator. The Bank of New York Mellon ("BNY Mellon") serves as the fund's custodian and fund accounting agent. BNY Mellon Investment Servicing (US) Inc. serves as the fund's transfer agent and dividend disbursing agent.

**UNLISTED CLOSED-END FUND STRUCTURE**

The fund's shares have very limited liquidity. The fund's shares will not be listed on a stock exchange, and the fund does not anticipate that a secondary market will develop for its shares. The fund will offer to repurchase a limited amount of shares quarterly, which is discussed in more detail below.

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**Prospectus summary**

**DISTRIBUTIONS**

The fund intends to distribute to shareholders all or a portion of its net investment income annually and realized net capital gains, if any, at least annually. After the first year of operations, the fund may pay dividends twice annually. Unless shareholders specify otherwise, dividends will be reinvested in shares of the fund.

**TAX CONSIDERATIONS**

You will normally have to pay federal income taxes, and any state or local taxes, on the dividends and other distributions you receive from the fund. For U.S. federal income tax purposes, distributions from the fund's net capital gains (the excess, if any, of its net long-term capital gains over its net short-term capital losses) are considered long-term capital gains and are generally taxable to noncorporate shareholders at reduced rates. Distributions from the fund's net short-term capital gains are generally taxable as ordinary income. Other dividends are generally taxable as ordinary income or, in general, if paid from the fund's "qualified dividend income" and if certain conditions, including holding period requirements, are met by the fund and the shareholder, as qualified dividend income taxable to individual and certain other noncorporate shareholders at reduced U.S. federal income tax rates. "Qualified dividend income" generally is income derived from dividends paid by U.S. corporations or certain foreign corporations that are either incorporated in a U.S. possession or eligible for tax benefits under certain U.S. income tax treaties. In addition, dividends that the fund receives in respect of stock of certain foreign corporations may be qualified dividend income if that stock is readily tradable on an established U.S. securities market. A portion of dividends received from the fund (but none of the fund's capital gain distributions) may qualify for the dividends-received deduction for corporations.

The fund will report to shareholders annually the U.S. federal income tax status of all fund distributions.

If the fund declares a dividend in October, November or December, payable to shareholders of record in such a month, and pays it in January of the following year, you will be taxed on the dividend as if you received it in the year in which it was declared.

You should consult a tax adviser about state, local and foreign taxes on your distributions from the fund.

See "Dividends and Distributions" and "Federal Income Tax Matters."

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**Summary of fund expenses**

The following table describes the fees and expenses you may pay if you buy and hold shares of the fund.

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| | |
|:---|:---|
| **Shareholder Transaction Expenses** |  |
| Maximum Repurchase Fee<sup>1</sup> <br>| 2.00% |
| Sales Load |  |

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

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| | |
|:---|:---|
| **Annual Fund Operating Expenses** | **As a Percentage**<br> **of Net Assets**<br> **Attributable to**<br> **the Common Shares**<br>|
| Management Fee | 1.75% |
| Other Expenses<sup>2</sup> <br>| 0.20% |
| Total Annual Fund Operating Expenses | 1.95% |

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**Example**

The following examples illustrate the expenses that you would pay on an investment in the fund's shares, assuming (1) the fund's total annual operating expenses attributable to Common Shares remain the same and (2) a 5% annual return\*:

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| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **Without a repurchase**<br> **at the end of the period** | **Without a repurchase**<br> **at the end of the period** | **Without a repurchase**<br> **at the end of the period** | **Without a repurchase**<br> **at the end of the period** | **With a repurchase**<br> **at the end of the period**<sup>1</sup>  | **With a repurchase**<br> **at the end of the period**<sup>1</sup>  | **With a repurchase**<br> **at the end of the period**<sup>1</sup>  |  |
|  | **Number of years you own your shares** | **Number of years you own your shares** | **Number of years you own your shares** | **Number of years you own your shares** | **Number of years you own your shares** | **Number of years you own your shares** | **Number of years you own your shares** |  |
|  | **1** | **3** | **5** | **10** | **1** | **3** | **5** | **10** |
| Total expenses incurred <br> on a $1,000 investment<br>| $20 | $61 | $105 | $227 | $41 | $83 | $129 | $255 |
| Total expenses incurred<br> on a $1,000,000 investment<br>| $19797 | $61222 | $105212 | $227478 | $40705 | $83424 | $128789 | $254877 |

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The foregoing fee table and examples are intended to assist investors in understanding the costs and expenses that an investor in the fund will bear directly or indirectly.

**\* The Examples should not be considered representations of future expenses. Actual expenses may be greater or lesser than those assumed for purposes of the Examples.** The Examples assume that the other expenses set forth in the fee table are accurate and that all dividends and distributions are reinvested at net asset value. Moreover, the fund's actual rate of return may be greater or less than the hypothetical 5% return shown in the example.

(1) The fund does not currently charge a repurchase fee. However, the fund may in the future charge a repurchase fee of up to 2.00%, which the fund would retain to help offset non-de minimis estimated costs related to the repurchase.

(2) "Other expenses" are based on estimated amounts for the current fiscal year.

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**Financial highlights**

Because the fund has not yet commenced capital raising or investment activity, there are no financial highlights to include in this Prospectus.

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**The fund**

Pioneer ILS Bridge Fund is a non-diversified, closed-end management investment company that is operated as an interval fund. The fund was organized under the laws of the State of Delaware on June 20, 2016, and has registered under the 1940 Act. The fund has no operating history. The fund's principal office is located at 60 State Street, Boston, Massachusetts 02109, and its telephone number is (617) 742-7825.

**Use of proceeds**

The fund will invest the proceeds of the offering of shares in accordance with the fund's investment objective and principal investment strategies as stated below. It is presently anticipated that the fund will be able to fully invest all of the proceeds according to its investment objective and policies within approximately three months after receipt of the proceeds, depending on the amount and timing of proceeds available to the fund as well as the availability of securities consistent with the fund's investment objective and strategies. Pending investment, all or a portion of the proceeds may be invested in U.S. government securities or high grade, short-term money market instruments. It is presently anticipated that approximately $15 to $25 million in proceeds will be required for the fund to invest in accordance with its investment objective and policies and meet the regulatory requirements described in this prospectus. If the fund is unable to achieve operational scale, there is a risk that the fund's fees and expenses may be relatively high and a risk that the fund may cease operations. See "Investment Objective and Principal Investment Strategies."

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**Investment objective and principal investment strategies**

**INVESTMENT OBJECTIVE**

The fund's investment objective is total return. There can be no assurance that the fund will achieve its investment objective.

The fund's investment objective may be changed without shareholder approval. The fund will provide 30 days' written notice prior to implementing any change to its investment objective.

**PRINCIPAL INVESTMENT STRATEGIES**

The fund invests primarily in insurance-linked securities ("ILS"). ILS include event-linked bonds (also known as insurance-linked bonds or catastrophe bonds), quota share instruments (also known as "reinsurance sidecars"), collateralized reinsurance investments, industry loss warranties, event-linked swaps, securities of companies in the insurance or reinsurance industries, and other insurance- and reinsurance-related securities.

Because ILS are typically rated below investment grade or unrated, a substantial portion of the fund's assets ordinarily will consist of below investment grade (high yield) debt securities. Investment in securities of below investment grade quality, commonly referred to as "junk bonds," involves substantial risk of loss. Securities in which the fund may invest may also be subordinated or "junior" to more senior securities of the issuer.

In selecting ILS for investment, Amundi US uses quantitative and qualitative analysis. Amundi US utilizes quantitative analysis in an effort to model portfolio risk and attribution. This modeling process is supported by use of a risk analytic system that is used by the insurance industry. The risk analytic system contains a database of historical and hypothetical catastrophic events and property structures that assists Amundi US in its efforts to model peril exposures at both the security and portfolio level. Among the factors considered in this process are expected loss and the probabilities of loss and maximum loss. Amundi US's qualitative analysis may consider various factors, such as trigger term (measurement of loss event specific to an instrument) or other terms of an instrument, sponsor quality, deal structure, alignment of interest between the fund and the sponsoring insurance company, and model accuracy. Amundi US's analysis guides Amundi US in determining the desired allocation of reinsurance-related securities by issuer, peril and geographic exposure. The fund seeks to participate broadly in the spectrum of natural catastrophe risks within the global reinsurance market, while seeking to reduce exposure to reinsurers where there is not an alignment of interest. However, there are no limits on the fund's potential investment in a particular issue, peril or geographic exposure. Amundi US may rely on information and analysis obtained from brokers, dealers and ratings organizations, among other sources.

In selecting investments other than ILS, Amundi US also considers both broad economic and issuer specific factors. Amundi US selects individual securities based upon the terms of the securities, liquidity and rating, sector and exposure to particular issuers and sectors. Amundi US also employs fundamental research to assess an issuer's credit quality, taking into account financial condition and profitability, future capital needs, potential for change in rating, industry outlook, the competitive environment and management ability. In making these portfolio decisions, Amundi US relies on the knowledge, experience and judgment of its staff and the staff of its affiliates who have access to a wide variety of research.

Amundi US may sell a portfolio security when it believes the security no longer will contribute to meeting the fund's investment objective. Amundi US makes that determination based on the same criteria it uses to select portfolio securities.

**Portfolio investments**

Normally, the fund invests at least 80% of its net assets (plus the amount of borrowings, if any, for investment purposes) in insurance-linked securities ("ILS"). Derivative instruments that provide exposure to such ILS or have similar economic characteristics may be used to satisfy the fund's 80% policy. ILS include event-linked bonds (also known as insurance-linked bonds or catastrophe bonds), structured reinsurance investments such as quota share instruments (a form of proportional reinsurance in which an investor participates in the premiums and losses of a reinsurer's portfolio of catastrophe-oriented policies, sometimes referred to as "reinsurance sidecars") and collateralized reinsurance investments, industry loss warranties, event-linked swaps, securities of companies in the insurance or reinsurance industries, and other insurance- and reinsurance-related securities.

Reinsurance-related securities are typically below investment grade, or unrated, and may be referred to as "junk bonds."

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The fund has no limit as to the maturity of the securities in which it invests. Event-linked bonds typically have maturities between three and five years, while quota shares, collateralized reinsurance investments and industry loss warranties typically have maturities that generally do not exceed two years. Maturity is a measure of the time remaining until final payment on the security is due.

The fund will provide written notice to shareholders at least 60 days prior to any change to the requirement that it invest at least 80% of its assets in ILS.

In addition to ILS, the fund may invest in in a broad range of issuers and segments of the debt securities market. Debt securities may include instruments and obligations of U.S. and non-U.S. corporate and other non-governmental entities, those of U.S. and non-U.S. governmental entities (including government agencies and instrumentalities), floating rate loans and other floating rate securities, subordinated debt securities, certificates of deposit, money market securities, funds that invest primarily in debt securities, and cash, cash equivalents and other short term holdings.

The fund's investments may have fixed or variable principal payments and all types of interest rate and dividend payment and reset terms, including fixed rate, adjustable rate, floating rate, contingent, deferred, payment in kind and auction rate features.

The fund may invest in ILS issued by non-U.S. issuers.

The fund may, but is not required to, use derivatives, such as currency forward contracts and bond and interest rate futures. The fund may use derivatives for a variety of purposes, including: in an attempt to hedge against adverse changes in the market price of securities, interest rates or currency exchange rates; as a substitute for purchasing or selling securities; to seek event-linked exposure; to attempt to increase the fund's return as a non-hedging strategy that may be considered speculative; and to manage portfolio characteristics. The fund may choose not to make use of derivatives for a variety of reasons, and any use may be limited by applicable law and regulations. The fund also may hold cash or other short-term investments.

To the extent consistent with the repurchase liquidity requirement of an interval fund, the fund may invest without limit in illiquid securities.

The Adviser integrates environmental, social and corporate governance (ESG) considerations into its investment research process by evaluating the business models and practices of issuers and their ESG-related risks. The Adviser believes ESG analysis is a meaningful facet of fundamental research, the process of evaluating an issuer based on its financial position, business operations, competitive standing and management. This process considers ESG information, where available, in assessing an investment's performance potential. The Adviser generally considers ESG information in the context of an issuer's respective sector or industry. The Adviser may consider ESG ratings provided by third parties or internal sources, as well as issuer disclosures and public information, in evaluating issuers. ESG considerations are not a primary focus of the fund, and the weight given by the Adviser to ESG considerations in making investment decisions will vary and, for any specific decision, they may be given little or no weight.

Notwithstanding the foregoing, the Adviser generally will not invest fund assets in:

• companies that the Adviser determines have significant involvement in the manufacturing of complete tobacco products;

• companies engaged in (i) the production, sale or storage of chemical, biological and depleted uranium weapons, or (ii) the production, sale, storage of, or providing services for, antipersonnel mines and cluster bombs prohibited by the Ottawa and Oslo treaties; or

• companies (i) with involvement in the production, sale or storage of nuclear weapons of countries that are non-parties to the Treaty on the Non-Proliferation of Nuclear Weapons, (ii) with involvement in the production of nuclear warheads and/or whole nuclear missiles; or (iii) that the Adviser determines have significant involvement in the production or sale of nuclear weapons.

The fund's investment strategies and policies may be changed from time to time without shareholder approval, unless specifically stated otherwise in this prospectus or in the statement of additional information.

**Insurance-linked securities**

***Event-linked bonds***

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**Investment objective and principal investment strategies**

The fund may invest in "event-linked" bonds, which sometimes are referred to as "insurance-linked" or "catastrophe" bonds. Event-linked bonds are floating rate debt obligations for which the return of principal and the payment of interest are contingent on the non-occurrence of a pre-defined "trigger" event, such as a hurricane or an earthquake of a specific magnitude. The trigger event's magnitude may be based on losses to a company or industry, industry indexes or readings of scientific instruments, or may be based on specified actual losses. If a trigger event, as defined within the terms of an event-linked bond occurs, the fund may lose a portion or all of its accrued interest and/or principal invested in such event-linked bond. The fund is entitled to receive principal and interest payments so long as no trigger event occurs of the description and magnitude specified by the instrument.

Event-linked bonds may be issued by government agencies, insurance companies, reinsurers, special purpose corporations or other U.S. or non-U.S. entities. Event-linked bonds are typically rated below investment grade or may be unrated. The rating for an event-linked bond primarily reflects the rating agency's calculated probability that a pre-defined trigger event will occur, which will cause a loss of principal. This rating may also assess the credit risk of the bond's collateral pool, if any, and the reliability of the model used to calculate the probability of a trigger event.

The fund's investments in event-linked bonds may have trigger events related to a broad range of insurance risks, which can be broken down into three major categories: natural risks, weather risks and non-natural events. Investments in event-linked bonds with trigger events related to natural risks will represent the largest portion of the fund's event-linked bond investments. The events covered are natural catastrophes, such as hurricanes, other windstorms, earthquakes and fires. Investments in event-linked bonds linked to weather risks provide insurance to companies, or insurers of companies, whose sales depend on the weather and provide a hedge on the impact of weather-related risks. For example, a weather event-linked bond could provide coverage based on the average temperature in a region over a given period. Investments in event-linked bonds linked to non-natural risks could cover a much broader array of insurable risks, such as aerospace and shipping catastrophes.

The fund may invest in other types of event-linked bonds where the trigger event may be based on company-wide losses ("indemnity triggers"), index-based losses ("index triggers") or a combination of triggers ("hybrid triggers").

**Indemnity triggers.** Indemnity triggers are based on losses of the insurance company or other entity issuing the event-linked bond. The trigger event would be considered to have occurred if a company's losses on catastrophic insurance claims exceeded a certain aggregate amount of insured claims. If the company's losses were less than the pre-determined aggregate amount, then the trigger event would not be considered to have occurred and the fund would be entitled to recover its principal plus accrued but unpaid interest. Indemnity triggers require investors and rating agencies to understand the risks of the insurance and reinsurance policies underwritten by the company, which may be difficult to obtain and ascertain, particularly in the case of complex commercial insurance and reinsurance policies. In addition, event-linked bond investors are dependent upon the company's ability to settle catastrophe claims in a manner that would not be disadvantageous to investors' interests.

**Index triggers.** Index triggers follow one of three broad approaches: parametric, industry-loss and modeled-loss, or a combination thereof, which is discussed below as "hybrid triggers." Index triggers are based on pre-defined formulas, which eliminate the risks relating to a company's insurance claims-handling practices and potential information barriers. However, index triggers are generally riskier than indemnity triggers, since investors in event-linked bonds that have index triggers are dependent upon the accuracy of the models and reporting services used to calculate the formulas.

**- Parametric.** Parametric index triggers are based upon the occurrence of a catastrophic event with certain defined physical parameters (e.g., wind speed and location of a hurricane or magnitude and location of an earthquake).

**- Industry-loss.** Industry loss index triggers are based upon the estimated loss for the insurance industry as a whole from a particular catastrophe. Estimates are derived from a reporting service, such as Property Claim Services.

**- Modeled-loss.** Modeled-loss index triggers are based upon a catastrophe-modeling firm's database estimate of an industry loss, or a company's losses compared to a modeling firm's industry estimate of losses.

**Hybrid triggers.** Hybrid triggers involve more than one trigger type in a single transaction or tranche of an event-linked bond. For example, a hybrid trigger could involve the occurrence of both a U.S. hurricane and a Japanese earthquake with a different kind of index trigger for each. Another example of a hybrid trigger involves different trigger types occurring in a particular sequence. For example, after the occurrence of a qualifying U.S. earthquake, a modeled-loss

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index is used to establish a company's overall market share, and then applied to the industry loss index associated with the qualifying event to determine any principal reduction. Hybrid triggers may be more complicated and difficult to understand for investors, and involve the applicable risks associated with the types of triggers described above.

***Structured reinsurance investments***

ILS include special purpose vehicles ("SPVs") or similar instruments structured to comprise a portion of a reinsurer's catastrophe-oriented business, known as quota share instruments (sometimes referred to as reinsurance sidecars), or to provide reinsurance relating to specific risks to insurance or reinsurance companies through a collateralized instrument, known as collateralized reinsurance. Quota share instruments and other structured reinsurance investments generally will be considered illiquid securities by the fund. The fund may invest substantially in illiquid securities.

Structured reinsurance investments developed along with event-linked bonds as a mechanism to facilitate risk-transfer from insurance markets to capital markets investors. These instruments are typically more customizable but less liquid investments than event-linked bonds. Like event-linked bonds, an investor in structured reinsurance investments participates in the premiums and losses associated with underlying reinsurance contracts. Where the instruments are based on the performance of underlying reinsurance contracts, the fund has limited transparency into the underlying insurance policies and therefore must rely upon the risk assessment and sound underwriting practices of the insurer and/or reinsurer. The instruments typically mature in one year.

The fund invests indirectly in reinsurance contracts, by holding notes or preferred shares issued by a SPV or similar instrument whose performance is tied to an underlying reinsurance transaction, including quota share instruments. Quota share instruments are a form of proportional reinsurance in which an investor participates in the premiums and losses of a reinsurer's portfolio of catastrophe-oriented policies, according to a pre-defined percentage. For example, under a 10% quota share agreement, the SPV would be entitled to 10% of all premiums associated with a defined portfolio and be responsible for 10% of all related claims. The fund, as a holder of a quota share issued by an SPV would be entitled to its pro rata share of premiums received by the SPV and would be responsible for its pro rata share of the claims, up to the total amount invested.

Collateralized reinsurance investments, are privately structured securities or derivatives utilized to gain exposure to the reinsurance market. Collateralized reinsurance entails an SPV entering into a reinsurance arrangement that is then collateralized by invested capital and premiums related to the insurance coverage. The collateral is designed to cover in full the potential claims that could arise from the underlying reinsurance contract.

Structured reinsurance investments may include industry loss warranties ("ILWs"). ILWs are insurance-linked securities used to finance peak, non-recurrent insurance risks, such as hurricanes, tropical storms and earthquakes. ILWs feature an industry loss index trigger, and, in some cases, a dual trigger design that includes a protection buyer indemnity trigger. A traditional ILW takes the form of a bilateral reinsurance contract, but there are also index products that take the form of derivatives, collateralized structures or exchange traded instruments. The common feature among these forms is that the payout trigger is based on an industry loss index or a parametric index. County-weighted industry loss warranties are variations of ILWs that provide reinsurance protection at a county level rather than state-wide or industry-wide losses.

The reinsurance market is highly cyclical, with coverage being written at the beginning of the year and midyear for coverage for the following 12 months. The pricing of reinsurance is also highly cyclical as premiums for reinsurance coverage are driven, in large part, by insurers' recent loss experience.

**Liquidity and Restricted Securities**

A significant percentage of the ILS in which the fund invests are legally restricted as to resale pursuant to Section 4(2) of the Securities Act of 1933, as amended (the "1933 Act"), and securities eligible for resale pursuant to Rule 144A thereunder. Certain Section 4(2) and Rule 144A securities may be determined to be liquid securities and most or all of the event-linked bonds in which the fund invests will be considered liquid securities. Even if determined to be liquid, holdings of Rule 144A securities may increase the level of fund illiquidity if eligible buyers become uninterested in purchasing them. Other ILS, including quota share instruments, generally will be considered illiquid securities by the fund. The fund may invest substantially in illiquid securities.

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**Investment objective and principal investment strategies**

**Credit management**

The fund may invest in securities and other obligations of any credit quality, including those that are rated below investment grade (debt securities rated below investment grade are commonly referred to as "junk bonds") or are unrated but determined by the Adviser to be of equivalent credit quality, and those that are in default or in bankruptcy. Because ILS typically are rated below investment grade or are unrated, a substantial portion of the fund's assets ordinarily will consist of below investment grade securities. An investor can still lose significant amounts when investing in investment grade securities. The fund does not have a policy of maintaining a specific average credit quality of its portfolio. The Adviser monitors the credit quality and price of the securities and other instruments held by the fund.

Although the Adviser considers ratings when making investment decisions, it performs its own credit and investment analysis and does not rely primarily on ratings assigned by rating services. In evaluating the attractiveness of a particular obligation, whether rated or unrated, the Adviser generally gives equal weight to the obligation's yield and the issuer's creditworthiness and will normally take into consideration, among other things, the issuer's financial resources and operating history, its sensitivity to economic conditions and trends, the availability of its management, its debt maturity schedules and borrowing requirements, and relative values based on anticipated cash flow, interest and asset coverage and earnings prospects.

**Below investment grade securities**

The fund may invest in debt securities rated below investment grade or, if unrated, of equivalent quality as determined by the Adviser. Because ILS typically are rated below investment grade or are unrated, a substantial portion of the fund's assets ordinarily will consist of below investment grade securities. A debt security is below investment grade if it is rated Ba/BB or lower or the equivalent rating by at least one nationally recognized statistical rating organization or determined to be of equivalent credit quality by the Adviser. Debt securities rated below investment grade are commonly referred to as "junk bonds" and are considered speculative. Below investment grade debt securities involve greater risk of loss, are subject to greater price volatility and are less liquid, especially during periods of economic uncertainty or change, than higher quality debt securities. Below investment grade securities also may be more difficult to value. With respect to event-linked bonds, the rating reflects the probability that a pre-defined trigger event will occur, rather than the bond's credit rating. The rating also assesses the model used to calculate the probability of the trigger event.

If a security receives different ratings from nationally recognized statistical rating organizations, the fund will use the rating chosen by the portfolio manager as most representative of the security's credit quality. The ratings of nationally recognized statistical rating organizations represent their opinions as to the quality of the securities that they undertake to rate and may not accurately describe the risks of the securities. A rating organization may have a conflict of interest with respect to a security for which it assigns a quality rating. In addition, there may be a delay between a change in the credit quality of a security or other asset and a change in the quality rating assigned to the security or other asset by a rating organization. If a rating organization changes the quality rating assigned to one or more of the fund's portfolio securities, the Adviser will consider if any action is appropriate in light of the fund's investment objective and policies. An investor can still lose significant amounts when investing in investment grade securities.

**Floating rate investments**

Floating rate investments are securities and other instruments with interest rates that adjust or "float" periodically based on a specified interest rate or other reference and include floating rate loans, repurchase agreements, money market securities and shares of money market and short-term bond funds. For purposes of the fund's investment policies, the fund considers as floating rate instruments adjustable rate securities, fixed rate securities with durations of less than or equal to one year, funds that invest primarily in floating rate instruments, and fixed rate securities with respect to which the fund has entered into derivative instruments to effectively convert the fixed rate interest payments into floating rate interest payments.

**Floating rate loans**

Floating rate loans are provided by banks and other financial institutions to large corporate customers. These loans are rated below investment grade, but typically are secured with specific collateral and have a senior position in the capital structure of the borrower. These loans typically have rates of interest that are reset periodically by reference to a base lending rate, such as the London Interbank Offered Rate (LIBOR) or Secured Overnight Financing Rate (SOFR), plus a premium.

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**Second lien loans and other subordinated debt obligations**

The fund may invest in loans and other debt securities that have the same characteristics as senior floating rate loans except that such loans are second in lien property rather than first. Such "second lien" loans and securities, like senior floating rate loans, typically have adjustable or floating rate interest payments. The risks associated with "second lien" loans are higher than the risk of loans with first priority over the collateral. In the event of default on a "second lien" loan, the first priority lien holder has first claim to the underlying collateral of the loan. It is possible that no collateral value would remain for the second priority lien holder and therefore result in a loss of investment to the fund.

**U.S. government securities**

The fund may invest in U.S. government securities. U.S. government securities are obligations of, or guaranteed by, the U.S. government, its agencies or government-sponsored entities. U.S. government securities include obligations: directly issued by or supported by the full faith and credit of the U.S. government, like Treasury bills, notes and bonds and Government National Mortgage Association (GNMA) certificates; supported by the right of the issuer to borrow from the U.S. Treasury, like those of the Federal Home Loan Banks (FHLBs); supported by the discretionary authority of the U.S. government to purchase the agency's securities, like those of the Federal National Mortgage Association (FNMA); or supported only by the credit of the issuer itself, like the Tennessee Valley Authority. U.S. government securities include issues by non-governmental entities (like financial institutions) that carry direct guarantees from U.S. government agencies. U.S. government securities include zero coupon securities that make payments of interest and principal only upon maturity and which therefore tend to be subject to greater volatility than interest-bearing securities with comparable maturities.

Although the U.S. government guarantees principal and interest payments on securities issued by the U.S. government and some of its agencies, such as securities issued by GNMA, this guarantee does not apply to losses resulting from declines in the market value of these securities. Some of the U.S. government securities that the fund may hold are not guaranteed or backed by the full faith and credit of the U.S. government, such as those issued by FNMA and the Federal Home Loan Mortgage Corporation (FHLMC).

**Non-U.S. investments**

The fund may invest without limit in securities of non-U.S. issuers, including securities of emerging market issuers. Non-U.S. issuers are issuers that are organized and have their principal offices outside of the United States. Non-U.S. securities may be issued by non-U.S. governments, banks or corporations, or private issuers, and certain supranational organizations, such as the World Bank and the European Union. The fund considers emerging market issuers to include issuers organized under the laws of an emerging market country, issuers with a principal office in an emerging market country, issuers that derive at least 50% of their gross revenues or profits from goods or services produced in emerging markets or sales made in emerging market countries, or issuers that have at least 50% of their assets in emerging market countries. Emerging markets will generally include, but not be limited to, countries included in the Morgan Stanley Capital International (MSCI) Emerging + Frontier Markets Index.

**Derivatives**

The fund may purchase and sell derivative instruments such as exchange-listed and over-the-counter put and call options on securities, financial futures, equity, fixed income and interest rate indices, and other financial instruments, purchase and sell financial futures contracts and options thereon, enter into various interest rate transactions such as swaps, caps, floors or collars and enter into various currency transactions such as currency forward contracts, currency futures contracts, currency swaps or options on currency or currency futures or credit transactions and credit default swaps. The fund also may purchase derivative instruments that combine features of these instruments. The fund may use derivatives for a variety of purposes, including: in an attempt to hedge against adverse changes in the market price of securities, interest rates or currency exchange rates; as a substitute for purchasing or selling securities; to seek event-linked exposure; to attempt to increase the fund's return as a non-hedging strategy that may be considered speculative; to manage portfolio characteristics, and as a cash flow management technique. The fund may choose not to make use of derivatives for a variety of reasons, and any use may be limited by applicable law and regulations. The fund also may hold cash or other short-term investments.

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**Investment objective and principal investment strategies**

**Structured securities**

The fund may invest in structured securities. The value of the principal and/or interest on such securities is determined by reference to changes in the value of specific currencies, interest rates, commodities, indices or other financial indicators ("Reference") or the relative change in two or more References. The interest rate or the principal amount payable upon maturity or redemption may be increased or decreased depending upon changes in the Reference. The terms of the structured securities may provide in certain circumstances that no principal is due at maturity and, therefore, may result in a loss of the fund's investment. Changes in the interest rate or principal payable at maturity may be a multiple of the changes in the value of the Reference. Consequently, structured securities may entail a greater degree of market risk than other types of fixed income securities.

**Credit-linked notes**

The fund may invest in credit-linked notes ("CLNs"). A CLN is a derivative instrument. It is a synthetic obligation between two or more parties where the payment of principal and/or interest is based on the performance of some obligation (a reference obligation). In addition to credit risk of the reference obligations and interest rate risk, the buyer/seller of the CLN is subject to counterparty risk.

**Credit default swaps**

The fund may enter into credit default swaps, which are a type of derivative transaction. In a credit default swap, the credit default protection buyer makes periodic payments, known as premiums, to the credit default protection seller. In return, the credit default protection seller will make a payment to the credit default protection buyer upon the occurrence of a specified credit event. A credit default swap can refer to a single issuer or asset, a basket of issuers or assets, or an index of assets, each known as the "reference obligation."

A credit default swap is designed as a means to purchase (or sell) a hedge against the risk of default on the reference obligation. If a credit event occurs, the seller generally must pay the buyer the par value (i.e., full notional value) of the swap in exchange for an equal face amount of deliverable obligations of the reference obligation, or the seller may be required to deliver the related net cash amount, if the swap is cash settled.

The fund may be either the buyer or seller in a credit default swap. If the fund is a buyer and no credit event occurs, the fund may recover nothing if the swap is held through its termination date. However, if a credit event occurs, the fund generally may elect to receive the full notional value of the swap in exchange for an equal face amount of the reference obligation, the value of which may have significantly decreased. As a seller, the fund generally would receive an upfront payment or a fixed rate of income throughout the term of the swap provided that there is no credit event. As the seller, the fund would effectively add leverage to its portfolio because, in addition to its total net assets, the fund would be subject to investment exposure on the notional amount of the swap.

**Event-linked swaps**

The fund may obtain event-linked exposure by investing in event-linked swaps, which are similar to credit default swaps but typically are contingent, or formulaically related to defined trigger events. Trigger events include hurricanes, earthquakes and weather-related phenomena, including statistics relating to such events. If a trigger event occurs, the fund may lose the swap's notional amount. As derivative instruments, event-linked swaps are subject to risks in addition to the risks of investing in event-linked bonds, including counterparty risk and leverage risk.

**Inverse floating rate obligations**

The fund may invest in inverse floating rate obligations (a type of derivative instrument). The interest rate on inverse floating rate obligations will generally decrease as short-term interest rates increase, and increase as short-term rates decrease. Due to their leveraged structure, the sensitivity of the market value of an inverse floating rate obligation to changes in interest rates is generally greater than a comparable long-term bond issued by the same issuer and with similar credit quality, redemption and maturity provisions. Inverse floating rate obligations may be volatile and involve leverage risk.

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**Other investment companies**

The fund may invest in the securities of other investment companies, including exchange-traded funds and money market funds, to the extent that such investments are consistent with the fund's investment objective and policies and permissible under the 1940 Act. The fund may also invest without limit in money market funds. The fund, as a holder of the securities of other investment companies, will bear its pro rata portion of the other investment companies' expenses, including advisory fees. These expenses will be in addition to the direct expenses incurred by the fund.

**Exchange-traded funds**

Subject to the fund's limitations on investment in other investment companies, the fund may invest in exchange-traded funds ("ETFs"). ETFs, such as SPDRs, PowerShares QQQ™ (QQQQs), iShares and various country index funds, are funds whose shares are traded on a national exchange. ETFs may be based on underlying equity or fixed income securities. SPDRs, for example, seek to provide investment results that generally correspond to the performance of the component common stocks of the S&P® 500 Index. ETFs do not sell individual shares directly to investors and only issue their shares in large blocks known as "creation units." The investor purchasing a creation unit may sell the individual shares on a secondary market. Therefore, the liquidity of ETFs depends on the adequacy of the secondary market. There can be no assurance that an ETF's investment objective will be achieved. ETFs based on an index may not replicate and maintain exactly the composition and relative weightings of securities in the index. ETFs are subject to the risks of investing in the underlying securities. The fund, as a holder of the securities of the ETF, will bear its pro rata portion of the ETF's expenses, including advisory fees. These expenses are in addition to the direct expenses of the fund's own operations.

**Money market instruments**

The fund may invest in money market instruments or a money market fund that invests in money market instruments. Money market instruments include short-term U.S. government securities, U.S. dollar-denominated, high quality commercial paper (unsecured promissory notes issued by corporations to finance their short-term credit needs), certificates of deposit, bankers' acceptances and repurchase agreements relating to any of the foregoing.

**Reverse repurchase agreements and borrowing**

The fund may enter into reverse repurchase agreements pursuant to which the fund transfers securities to a counterparty in return for cash, and the fund agrees to repurchase the securities at a later date and for a higher price. Reverse repurchase agreements are treated as borrowings by the fund, are a form of leverage and may make the value of an investment in the fund more volatile and increase the risks of investing in the fund. The fund also may borrow money from banks or other lenders, including to finance repurchase requests. The fund may borrow up to 33 <sup>1</sup>∕3% of its total assets. Entering into reverse repurchase agreements and other borrowing transactions may cause the fund to liquidate positions when it may not be advantageous to do so in order to satisfy its obligations.

**Repurchase agreements**

The fund may enter into repurchase agreements with broker-dealers, member banks of the Federal Reserve System and other financial institutions. Repurchase agreements are arrangements under which the fund purchases securities and the seller agrees to repurchase the securities within a specific time and at a specific price. The repurchase price is generally higher than the fund's purchase price, with the difference being income to the fund. A repurchase agreement may be considered a loan by the fund collateralized by securities. The Adviser reviews and monitors the creditworthiness of any institution which enters into a repurchase agreement with the fund. All repurchase agreements entered into by the fund shall be fully collateralized with U.S. Treasury and/or agency obligations at all times during the period of the agreement in that the value of the collateral shall be at least equal to an amount of the loan, including interest thereon. Collateral is held by the fund's custodian in a segregated safekeeping account for the benefit of the fund. Repurchase agreements afford the fund an opportunity to earn income on temporarily available cash. In the event of commencement of bankruptcy or insolvency proceedings with respect to the seller of the security before repurchase of the security under a repurchase agreement, the fund may encounter delay and incur costs before being able to sell the security. Such a delay may involve loss of interest or a decline in price of the security. If the court characterizes the transaction as a loan and the fund has not perfected a security interest in the collateral, the fund may be required to return the collateral to the seller's estate and be treated as an unsecured creditor of the seller. As an unsecured creditor, the fund would be at risk of losing some or all of the principal and interest involved in the transaction.

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**Investment objective and principal investment strategies**

**Cash management and temporary investments**

Normally, the fund invests substantially all of its assets to meet its investment objective. The fund may invest the remainder of its assets in securities with remaining maturities of less than one year or cash equivalents, or may hold cash. For temporary defensive purposes, including during periods of unusual cash flows, the fund may depart from its principal investment strategies and invest part or all of its assets in these securities or may hold cash. The fund may adopt a defensive strategy when the Adviser believes securities in which the fund normally invests have special or unusual risks or are less attractive due to adverse market, economic, political or other conditions. During such periods, it may be more difficult for the fund to achieve its investment objective.

**Short-term trading**

The fund usually does not trade for short-term profits. The fund will sell an investment, however, even if it has only been held for a short time, if it no longer meets the fund's investment criteria. If the fund does a lot of trading, it may incur additional operating expenses, which would reduce performance, and could cause shareowners to incur a higher level of taxable income or capital gains.

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**Risk factors**

*Risk is inherent in all investing. Investing in any investment company security involves risk, including the risk that you may receive little or no return on your investment. Therefore, before purchasing shares, you should consider carefully the following risks that you assume when you invest in the fund.*

**General.** The fund is a non-diversified, closed-end management investment company designed primarily as a long-term investment and not as a trading tool. The fund is not a complete investment program and should be considered only as an addition to an investor's existing portfolio of investments. Because the fund invests predominantly in ILS of U.S. and non-U.S. issuers, floating rate loans, and high yield debt securities, an investment in the fund's shares is speculative in that it involves a high degree of risk. Due to uncertainty inherent in all investments, there can be no assurance that the fund will achieve its investment objective. ILS in which the fund invests may only have limited liquidity, or may be illiquid. In addition, even though the fund will make periodic offers to repurchase a portion of its outstanding shares to provide some liquidity to shareholders, shareholders should consider the fund to be an illiquid investment.

**No operating history.** The fund is a non-diversified, closed-end management investment company and has no operating history or history of public trading.

**Risks of investing in insuranced-linked securities.** The fund could lose a portion or all of the principal it has invested in an ILS, and the right to additional interest and/or dividend payments with respect to the security, upon the occurrence of one or more trigger events, as defined within the terms of the ILS. Trigger events may include natural or other perils of a specific size or magnitude that occur in a designated geographic region during a specified time period, and/or that involve losses or other metrics that exceed a specific amount. Natural perils include disasters such as hurricanes, earthquakes, windstorms, fires, floods and other weather-related occurrences, as well as mortality or longevity events. Non-natural perils include disasters resulting from human-related activity such as commercial and industrial accidents or business interruptions. Major natural disasters (such as in the cases of Super Typhoon Goni in the Philippines in 2020, monsoon flooding in China in 2020, Hurricane Irma in Florida and the Caribbean in 2017, Super Storm Sandy in 2012, and Hurricane Ian in Florida in 2022) or commercial and industrial accidents (such as aviation disasters and oil spills) can result in significant losses, and investors in ILS with exposure to such natural or other disasters may also experience substantial losses. If the likelihood and severity of natural and other large disasters increase, the risk of significant losses to reinsurers may increase. Typically, one significant triggering event (even in a major metropolitan area) will not result in financial failure to a reinsurer. However, a series of major triggering events could cause the failure of a reinsurer. Similarly, to the extent the fund invests in ILS for which a triggering event occurs, losses associated with such event will result in losses to the fund and a series of major triggering events affecting a large portion of the ILS held by the fund will result in substantial losses to the fund. The fund may also invest in ILS that are subject to "indemnity triggers." An indemnity trigger is a trigger based on the actual losses of the ceding sponsor (i.e., the party seeking reinsurance). ILS subject to indemnity triggers are often regarded as being subject to potential moral hazard, since such ILS are triggered by actual losses of the ceding sponsor and the ceding sponsor may have an incentive to take actions and/or risks that would have an adverse effect on the fund. For example, a ceding sponsor might inflate its total claims paid above the ILS trigger level in order to share its losses with investors in the ILS. Thus, bonds with indemnity triggers may be subject to moral hazard, because the trigger depends on the ceding sponsor to properly identify and calculate losses that do and do not apply in determining whether the trigger amount has been reached. In short, "moral hazard" refers to this potential for the sponsor to influence bond performance, as payouts are based on the individual policy claims against the sponsor and the way the sponsor settles those claims. There is no way to accurately predict whether a trigger event will occur and, accordingly, ILS carry significant risks. In addition to the specified trigger events, ILS may expose the fund to other risks, including but not limited to issuer (credit) default, adverse regulatory or jurisdictional interpretations and adverse tax consequences. ILS are also subject to the risk that the model used to calculate the probability of a trigger event was not accurate and underestimated the likelihood of a trigger event. ILS may provide for extensions of maturity in order to process and audit loss claims in those cases when a trigger event has, or possibly has, occurred. Certain ILS may have limited liquidity, or may be illiquid. Upon the occurrence or possible occurrence of a trigger event, and until the completion of the processing and auditing of applicable loss claims, the fund's investment in an ILS may be priced using fair value methods. Lack of a liquid market may impose the risk of higher transaction costs and the possibility that the fund may be forced to liquidate positions when it would not be advantageous to do so.

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**Risk factors**

**Risks of investing in structured reinsurance investments.** The fund invests in ILS that are special purpose vehicles ("SPVs") or similar instruments structured to comprise a portion of a reinsurer's catastrophe-oriented business, known as quota share instruments (sometimes referred to as reinsurance sidecars), or to provide reinsurance relating to specific risks to insurance or reinsurance companies through a collateralized instrument, known as collateralized reinsurance. Quota shares instruments and other structured reinsurance investments generally will be considered illiquid securities by the fund.

Structured reinsurance investments are typically more customizable but less liquid investments than event-linked bonds. Like event-linked bonds, an investor in structured reinsurance investments participates in the premiums and losses associated with underlying reinsurance contracts.

Structured reinsurance investments are subject to the same risks as event-linked bonds and other ILS. In addition, because quota share instruments represent an interest in a basket of underlying reinsurance contracts, the fund has limited transparency into the individual underlying contracts and therefore must rely upon the risk assessment and sound underwriting practices of the insurer and/or reinsurer. Accordingly, it may be more difficult for the Adviser to fully evaluate the underlying risk profile of the fund's investment in quota share instruments and therefore place the fund's assets at greater risk of loss than if the Adviser had more complete information. Structured reinsurance investments may be difficult to value.

Since ILS issuers typically are structured so as to be bankruptcy remote SPVs or similar structures, it is unlikely that the fund could lose its investment if the applicable trigger event never occurs. However, there can be no assurance that ILS in which the fund may invest in the future will be structured in a similar manner or that a court would uphold the intended bankruptcy remote characterization of the structure. If ILS issued in the future is structured in a different manner, it may be possible that the fund would lose its entire investment in an event-linked bond even though the applicable trigger event never occurs.

**ILS market and reinvestment risk.** The size of the ILS market may change over time, which may limit the availability of ILS for investment by the fund. The original issuance of ILS in general, including ILS with desired instrument or risk characteristics, may fluctuate depending on the capital and capacity needs of reinsurers as well as the demand for ILS by institutional investors. The availability of ILS in the secondary market also may be limited by supply and demand dynamics and prevailing economic conditions. To the extent ILS held by the fund mature, or the fund must sell securities in connection with share repurchases, the fund may be required to hold more cash or short-term investments than it normally would until attractive ILS becomes available. Holding excess cash and/or reinvestment in securities that are lower yielding or less desirable than securities sold may negatively affect performance.

There are relatively few market participants that market reinsurance arrangements, create SPVs and similar structures, and otherwise facilitate the participation in the reinsurance industry by funds and other capital market investors. Withdrawal from the industry by key market participants may affect negatively the liquidity of the ILS market or the operation or value of ILS structures that rely on these market participants.

**Market risk.** The market prices of securities or other assets held by the fund may go up or down, sometimes rapidly or unpredictably, due to general market conditions, such as real or perceived adverse economic, political, or regulatory conditions, political instability, recessions, inflation, changes in interest or currency rates, lack of liquidity in the bond markets, the spread of infectious illness or other public health issues, armed conflict, market disruptions caused by tariffs, trade disputes, sanctions or other government actions, or other factors or adverse investor sentiment. If the market prices of the fund's securities and assets fall, the value of your investment will go down. A change in financial condition or other event affecting a single issuer or market may adversely impact securities markets as a whole.

Changes in market conditions may not have the same impact on all types of securities. The value of securities may also fall due to specific conditions that affect a particular sector of the securities market or a particular issuer. In the past decade, financial markets throughout the world have experienced increased volatility, depressed valuations, decreased liquidity and heightened uncertainty. Governmental and non-governmental issuers have defaulted on, or been forced to restructure, their debts. These conditions may continue, recur, worsen or spread. Events that have contributed to these market conditions include, but are not limited to, major cybersecurity events; geopolitical events (including wars, terror attacks and economic sanctions); measures to address budget deficits; downgrading of sovereign debt; changes in oil and commodity prices; dramatic changes in currency exchange rates; global pandemics; and public sentiment. The fallout

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from the COVID-19 pandemic and subsequent variants of COVID-19, and the long-term impact on economies, markets, industries and individual issuers, are not known. Some sectors of the economy and individual issuers have experienced or may experience particularly large losses. Periods of extreme volatility in the financial markets; reduced liquidity of many instruments; and disruptions to supply chains, consumer demand and employee availability, may continue for some time.

Raising the ceiling on U.S. government debt has become increasingly politicized. Any failure to increase the ceiling on U.S. government debt could lead to a default on U.S. government obligations, with unpredictable consequences for economies and markets in the U.S. and elsewhere. Recently, inflation and interest rates have increased and may rise further. These circumstances could adversely affect the value and liquidity of the fund's investments, impair the fund's ability to satisfy redemption requests, and negatively impact the fund's performance. Following Russia's invasion of Ukraine, Russian securities have lost all, or nearly all, their market value. Other securities or markets could be similarly affected by past or future political, geopolitical or other events or conditions.

Governments and central banks, including the U.S. Federal Reserve, have taken extraordinary and unprecedented actions to support local and global economies and the financial markets. These actions have resulted in significant expansion of public debt, including in the U.S. The consequences of high public debt, including its future impact on the economy and securities markets, may not be known for some time. U.S. Federal Reserve or other U.S. or non-U.S. governmental or central bank actions, including increases or decreases in interest rates, or contrary actions by different governments, could negatively affect financial markets generally, increase market volatility and reduce the value and liquidity of securities in which the fund invests. Policy and legislative changes in the U.S. and in other countries are affecting many aspects of financial regulation, and these and other events affecting global markets, such as the United Kingdom's exit from the European Union (or Brexit), potential trade imbalances with China or other countries, or sanctions or other government actions against Russia, other nations or individuals or companies (or their countermeasures), may contribute to decreased liquidity and increased volatility in the financial markets. The impact of these changes on the markets, and the implications for market participants, may not be fully known for some time.

The United States and other countries are periodically involved in disputes over trade and other matters, which may result in tariffs, investment restrictions and adverse impacts on affected companies and securities. For example, the United States has imposed tariffs and other trade barriers on Chinese exports, has restricted sales of certain categories of goods to China, and has established barriers to investments in China. Trade disputes may adversely affect the economies of the United States and its trading partners, as well as companies directly or indirectly affected and financial markets generally. The United States government has prohibited U.S. persons, such as the fund, from investing in Chinese companies designated as related to the Chinese military. These and possible future restrictions could limit the fund's opportunities for investment and require the sale of securities at a loss or make them illiquid. Moreover, the Chinese government is involved in a longstanding dispute with Taiwan that has included threats of invasion. If the political climate between the United States and China does not improve or continues to deteriorate, if China were to attempt unification of Taiwan by force, or if other geopolitical conflicts develop or get worse, economies, markets and individual securities may be severely affected both regionally and globally, and the value of the fund's assets may go down.

Economies and financial markets throughout the world are increasingly interconnected. Economic, financial or political events, trading and tariff arrangements, armed conflict including Russia's military invasion of Ukraine, terrorism, natural disasters, infectious illness or public health issues, cybersecurity events, supply chain disruptions, sanctions against Russia, other nations or individuals or companies and possible countermeasures, and other circumstances in one country or region, could have profound impacts on other countries or regions and on global economies or markets. As a result, whether or not the fund invests in securities of issuers located in or with significant exposure to the countries or regions directly affected, the value and liquidity of the fund's investments may be negatively affected. The fund may experience a substantial or complete loss on any security or derivative position.

LIBOR (London Interbank Offered Rate) is used extensively in the U.S. and globally as a "benchmark" or "reference rate" for various commercial and financial contracts, including corporate and municipal bonds, bank loans, asset-backed and mortgage-related securities, and interest rate swaps and other derivatives. ICE Benchmark Administration, the administrator of LIBOR, ceased publication of most LIBOR settings on a representative basis at the end of 2021 and is expected to cease publication of a majority of U.S. dollar LIBOR settings on a representative basis after June 30, 2023. In addition, global regulators have announced that, with limited exceptions, no new LIBOR-based contracts should be

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**Risk factors**

entered into after 2021. Actions by regulators have resulted in the establishment of alternative reference rates to LIBOR in most major currencies. Markets are developing in response to these new rates, but questions around liquidity in these rates and how to appropriately adjust these rates to eliminate any economic value transfer at the time of transition remain a significant concern. The effect of any changes to - or discontinuation of - LIBOR on the fund will vary depending on, among other things, existing fallback provisions in individual contracts and whether, how, and when industry participants develop and widely adopt new reference rates and fallbacks for both legacy and new products and instruments. The transition process may involve, among other things, increased volatility or illiquidity in markets for instruments that rely on LIBOR. The transition may also result in a reduction in the value of certain LIBOR-based investments held by the fund or reduce the effectiveness of related transactions such as hedges. Any such effects of the transition away from LIBOR, as well as other unforeseen effects, could result in losses for the fund. Because the usefulness of LIBOR as a benchmark may deteriorate during the transition period, these effects could occur at any time.

**High yield or "junk" bond risk.** Debt securities that are below investment grade, called "junk bonds," are speculative, have a higher risk of default or are already in default, tend to be less liquid and are more difficult to value than higher grade securities and may involve major risk of exposure to adverse conditions and negative sentiments. These securities have a higher risk of issuer default because, among other reasons, issuers of junk bonds often have more debt in relation to total capitalization than issuers of investment grade securities. Junk bonds tend to be volatile and more susceptible to adverse events and negative sentiments. These risks are more pronounced for securities that are already in default. The fund may not receive interest payments on defaulted securities and may incur costs to protect its investment. In addition, defaulted securities involve the substantial risk that principal will not be repaid. Changes in economic conditions or developments regarding the individual issuer are more likely to cause price volatility and weaken the capacity of such securities to make principal and interest payments than is the case for higher grade debt securities. The value of lower-quality debt securities often changes in response to company, political, or economic developments and can decline significantly over short as well as long periods of time or during periods of general or regional economic difficulty. Junk bonds may also be less liquid than higher-rated securities, which means that the fund may have difficulty selling them at times, and it may have to apply a greater degree of judgment in establishing a price for purposes of valuing fund shares. Junk bonds generally are issued by less creditworthy issuers. Issuers of junk bonds may have a larger amount of outstanding debt securities relative to their assets than issuers of investment grade bonds. In the event of an issuer's bankruptcy, claims of other creditors may have priority over the claims of junk bond holders, leaving few or no assets available to repay junk bond holders. The fund may incur expenses to the extent necessary to seek recovery upon default or to negotiate new terms with a defaulting issuer. Junk bonds frequently have redemption features that permit an issuer to repurchase the security from the fund before it matures. If the issuer redeems junk bonds, the fund may have to invest the proceeds in bonds with lower yields and may lose income.

**Interest rate risk.** The market prices of the fund's fixed income securities may fluctuate significantly when interest rates change. When interest rates rise, the value of fixed income securities and therefore the value of your investment in the fund, generally falls. For example, if interest rates increase by 1%, the value of a fund's portfolio with a portfolio duration of ten years would be expected to decrease by 10%, all other things being equal.

In recent years, interest rates and credit spreads in the U.S. have been at historic lows. The U.S. Federal Reserve has raised certain interest rates, and interest rates may continue to go up. A general rise in interest rates could adversely affect the price and liquidity of fixed income securities and could also result in increased redemptions from the fund. A change in interest rates will not have the same impact on all fixed income securities. Generally, the longer the maturity or duration of a fixed income security, the greater the impact of a rise in interest rates on the security's value. The maturity of a security may be significantly longer than its effective duration. A security's maturity and other features may be more relevant than its effective duration in determining the security's sensitivity to other factors affecting the issuer or markets generally, such as changes in credit quality or in the yield premium that the market may establish for certain types of securities (sometimes called "credit spread"). In general, the longer its maturity the more a security may be susceptible to these factors. When the credit spread for a fixed income security goes up or "widens," the value of the security will generally go down. Calculations of duration and maturity may be based on estimates and may not reliably predict a security's price sensitivity to changes in interest rates. Moreover, securities can change in value in response to other factors, such as credit risk. In addition, different interest rate measures (such as short- and long-term interest rates and U.S. and foreign interest rates), or interest rates on different types of securities or securities of different issuers, may not

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necessarily change in the same amount or in the same direction. When interest rates go down, the income received by the fund, and the fund's yield, may decline. Also, when interest rates decline, investments made by the fund may pay a lower interest rate, which would reduce the income received and distributed by the fund.

Certain fixed income securities pay interest at variable or floating rates. Variable rate securities tend to reset at specified intervals, while floating rate securities may reset whenever there is a change in a specified index rate. In most cases, these reset provisions reduce the impact of changes in market interest rates on the value of the security. However, some securities do not track the underlying index directly, but reset based on formulas that may produce a leveraging effect; others may also provide for interest payments that vary inversely with market rates. The market prices of these securities may fluctuate significantly when interest rates change. Yield generated by the fund may decline due to a decrease in market interest rates.

The values of securities with floating interest rates generally are less sensitive to interest rate changes but may decline in value if their interest rates do not rise as much, or as quickly, as prevailing interest rates. In addition, rising interest rates can also lead to increased default rates, as issuers of floating rate securities find themselves faced with higher payments. Further, in the case of some instruments, if the underlying reference interest rate does not move by at least a prescribed increment, no adjustment will occur in the floating rate instrument's interest rate. This means that, when prevailing interest rates increase, a corresponding increase in the instrument's interest rate may not result and the instrument may decline in value. Similarly, certain floating rate obligations have an interest rate floor feature, which prevents the interest rate payable by the security from dropping below a specified level as compared to a reference interest rate. Such a floor protects the fund from losses resulting from a decrease in the reference interest rate below the specified level. However, if the reference interest rate is below the floor, there will be a lag between a rise in the reference interest rate and a rise in the interest rate payable by the obligation, and the fund may not benefit from increasing interest rates for a significant amount of time. Unlike fixed rate securities, floating rate securities generally will not increase in value if interest rates decline. Changes in interest rates also will affect the amount of interest income the fund earns on its floating rate investments. Unlike fixed rate securities, when prevailing interest rates decrease, the interest rate payable on floating rate investments will decrease.

The interest rates of some floating rate obligations adjust only periodically. Between the times that interest rates on floating rate obligations adjust, the interest rate on those obligations may not correlate to prevailing rates, which will affect the value of the loans and may cause the net asset values of the fund's shares to fluctuate.

**Credit risk**. If an obligor (such as the issuer itself or a party offering credit enhancement) for a security held by the fund fails to pay, otherwise defaults, is perceived to be less creditworthy, becomes insolvent or files for bankruptcy, a security's credit rating is downgraded or the credit quality or value of an underlying asset declines, the value of your investment could decline. Changes in actual or perceived creditworthiness may occur quickly. If the fund enters into financial contracts (such as certain derivatives, repurchase agreements, reverse repurchase agreements, and when-issued, delayed delivery and forward commitment transactions), the fund will be subject to the credit risk presented by the counterparty. In addition, the fund may incur expenses and suffer delays in an effort to protect the fund's interests or to enforce its rights. A security may change in price for a variety of reasons. For example, floating rate securities may have final maturities of ten or more years, but their effective durations will tend to be very short. If there is an adverse credit event, or a perceived change in the issuer's creditworthiness, these securities could experience a far greater negative price movement than would be predicted by the change in the security's yield in relation to their effective duration. The fund evaluates the credit quality of issuers and counterparties prior to investing in securities. Credit risk is broadly gauged by the credit ratings of the securities in which the fund invests. However, ratings are only the opinions of the companies issuing them and are not guarantees as to quality. Securities rated in the lowest category of investment grade (Baa/BBB) may possess certain speculative characteristics.

**Prepayment or call risk.** Many fixed income securities give the issuer the option to prepay or call the security prior to its maturity date. Issuers often exercise this right when interest rates fall. Accordingly, if the fund holds a fixed income security that can be prepaid or called prior to its maturity date, it will not benefit fully from the increase in value that other fixed income securities generally experience when interest rates fall. Upon prepayment of the security, the fund also would be forced to reinvest the proceeds at then current yields, which would be lower than the yield of the security that was prepaid or called. In addition, if the fund purchases a fixed income security at a premium (at a price that exceeds its stated par or principal value), the fund may lose the amount of the premium paid in the event of prepayment.

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**Risk factors**

**Risk of illiquid investments.** Certain securities or derivatives held by the fund may be or become impossible or difficult to purchase or dispose of at a fair price at the times when the fund believes it is desirable to do so. The market price of illiquid securities generally is more volatile than that of more liquid securities, which may adversely affect the price that the fund pays for or recovers upon the sale of illiquid securities. Illiquid securities are also more difficult to value and the Adviser's judgment may play a greater role in the valuation process. Investment of the fund's assets in illiquid securities may restrict the fund's ability to take advantage of market opportunities. The risks associated with illiquid securities may be particularly acute in situations in which the fund's operations require cash and could result in the fund borrowing to meet its short-term needs or incurring losses on the sale of illiquid securities. Markets may become illiquid when, for instance, there are few, if any, interested buyers and sellers or when dealers are unwilling to make a market for certain securities or when dealer market-making capacity is otherwise reduced. During times of market turmoil, there have been, and may be, no buyers for securities in entire asset classes, including U.S. Treasury securities.

**Risks of investing in loans**. Floating rate loans and similar investments may be illiquid or less liquid than other investments and difficult to value. Market quotations for these securities may be volatile and/or subject to large spreads between bid and ask prices. No active trading market may exist for many floating rate loans, and many loans are subject to restrictions on resale. Any secondary market may be subject to irregular trading activity and extended trade settlement periods. An economic downturn generally leads to a higher non-payment rate, and a loan may lose significant value before a default occurs.

When the fund invests in a loan participation, the fund does not have a direct claim against the borrower and must rely upon an intermediate participant to enforce any rights against the borrower. As a result, the fund is subject to the risk that an intermediate participant between the fund and the borrower will fail to meet its obligations to the fund, in addition to the risk that the issuer of the loan will default on its obligations. Also the fund may be regarded as the creditor of the agent lender (rather than the borrower), subjecting the fund to the creditworthiness of the lender as well as the borrower.

There is less readily available, reliable information about most senior loans than is the case for many other types of securities. Although the features of senior loans, including being secured by collateral and having priority over other obligations of the issuer, reduce some of the risks of investment in below investment grade securities, the loans are subject to significant risks. Amundi US believes, based on its experience, that senior floating rate loans generally have more favorable loss recovery rates than most other types of below investment grade obligations. However, there can be no assurance that the fund's actual loss recovery experience will be consistent with Amundi US's prior experience or that the senior loans in which the fund invests will achieve any specific loss recovery rate.

Loans may take longer than seven days to settle, potentially leading to the sale proceeds of loans not being available to meet repurchase requests for a substantial period of time after the sale of the loans. To the extent that sale proceeds of loans are not available, the fund may sell securities that have shorter settlement periods or may access other sources of liquidity to meet repurchase requests. During periods of distressed market conditions, the fund may seek to obtain expedited trade settlement, which will generally incur additional costs (although expedited trade settlement will not always be available).

The types of covenants included in loan agreements generally vary depending on market conditions, the creditworthiness of the issuer, the nature of the collateral securing the loan, and other factors. Loans may have restrictive covenants that limit the ability of a borrower to further encumber its assets. If a borrower fails to comply with the covenants included in a loan agreement, the borrower may default in payment of the loan.

Some of the loans in which the fund may invest may be "covenant lite." Covenant lite loans contain fewer maintenance covenants, or no maintenance covenants at all, than traditional loans and may not include terms that allow the lender to monitor the financial performance of the borrower and declare a default if certain criteria are breached. This may expose the fund to greater credit risk associated with the borrower and reduce the fund's ability to restructure a problematic loan and mitigate potential loss. As a result the fund's exposure to losses on such investments may be increased, especially during a downturn in the credit cycle.

Second lien loans generally are subject to similar risks as those associated with senior loans. Because second lien loans are subordinated or unsecured and thus lower in priority on payment to senior loans, they are subject to the additional risk that the cash flow of the borrower and property securing the loan or debt, if any, may be insufficient to meet scheduled

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payments after giving effect to the senior secured obligations of the borrower. This risk is generally higher for subordinated unsecured loans or debt, which are not backed by a security interest in any specific collateral. Second lien loans generally have greater price volatility than senior loans and may be less liquid.

Certain floating rate loans and other corporate debt securities involve refinancings, recapitalizations, mergers and acquisitions, and other financings for general corporate purposes. Other loans are incurred in restructuring or "work-out" scenarios, including debtor-in-possession facilities in bankruptcy. Loans in restructuring or similar scenarios may be especially vulnerable to the inherent uncertainties in restructuring processes. In addition, the highly leveraged capital structure of the borrowers in any of these transactions, whether acquisition financing or restructuring, may make the loans especially vulnerable to adverse economic or market conditions and the risk of default.

Loans to entities located outside of the U.S. may have substantially different lender protections and covenants as compared to loans to U.S. entities and may involve greater risks. The fund may have difficulties and incur expense enforcing its rights with respect to non-U.S. loans and such loans could be subject to bankruptcy laws that are materially different than in the U.S.

Because affiliates of Amundi US may participate in the primary and secondary market for senior loans, limitations under applicable law may restrict the fund's ability to participate in structuring a senior loan or to acquire some senior loans, or affect the timing or price of such acquisition.

Loans may not be considered "securities," and purchasers, such as the fund, therefore may not be entitled to rely on the anti-fraud protections afforded by federal securities laws.

**Collateral risk.** The value of collateral, if any, securing a floating rate loan can decline, and may be insufficient to meet the issuer's obligations or may be difficult to liquidate. In addition, the fund's access to collateral may be limited by bankruptcy or other insolvency laws. These laws may be less developed and more cumbersome with respect to the fund's non-U.S. floating rate investments. Floating rate loans may not be fully collateralized or may be uncollateralized. Uncollateralized loans involve a greater risk of loss. 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 lender's security interest or their enforcement of their security interest 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. Further, the fund's access to collateral, if any, may be limited by bankruptcy law. To the extent that a loan is collateralized by stock of the borrower or its affiliates, this stock may lose all or substantially all of its value in the event of bankruptcy of the borrower. Loans that are obligations of a holding company are subject to the risk that, in a bankruptcy of a subsidiary operating company, creditors of the subsidiary may recover from the subsidiary's assets before the lenders to the holding company would receive any amount on account of the holding company's interest in the subsidiary.

**Risk of disadvantaged access to confidential information.** The issuer of a floating rate loan may offer to provide material, non-public information about the issuer to investors, such as the fund. Normally, Amundi US will seek to avoid receiving this type of information about the issuer of a loan either held by, or considered for investment by, the fund. Amundi US's decision not to receive the information may place it at a disadvantage, relative to other loan investors, in assessing a loan or the loan's issuer. For example, in instances where holders of floating rate loans are asked to grant amendments, waivers or consents, Amundi US's inability to assess the impact of these actions may adversely affect the value of the portfolio. For this and other reasons, it is possible that Amundi US's decision not to receive material, non-public information under normal circumstances could adversely affect the fund's investment performance.

**Risks of subordinated securities.** A holder of securities that are subordinated or "junior" to more senior securities of an issuer is entitled to payment after holders of more senior securities of the issuer. Subordinated securities are more likely to suffer a credit loss than non-subordinated securities of the same issuer, any loss incurred by the subordinated securities is likely to be proportionately greater, and any recovery of interest or principal may take more time. If there is a default, bankruptcy or liquidation of the issuer, most subordinated securities are paid only if sufficient assets remain after payment of the issuer's non-subordinated securities. As a result, even a perceived decline in creditworthiness of the issuer is likely to have a greater impact on subordinated securities than more senior securities.

**U.S. Treasury obligations risk.** The market value of direct obligations of the U.S. Treasury may vary due to changes in interest rates. In addition, changes to the financial condition or credit rating of the U.S. government may cause the value of the fund's investments in obligations issued by the U.S. Treasury to decline.

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**Risk factors**

**U.S. government agency obligations risk.** The fund invests in obligations issued by agencies and instrumentalities of the U.S. government. Government-sponsored entities such as FNMA, FHLMC and the FHLBs, although chartered or sponsored by Congress, are not funded by congressional appropriations and the debt and mortgage-backed securities issued by them are neither guaranteed nor issued by the U.S. government. The maximum potential liability of the issuers of some U.S. government obligations may greatly exceed their current resources, including any legal right to support from the U.S. government. Such debt and mortgage-backed securities are subject to the risk of default on the payment of interest and/or principal, similar to debt of private issuers. Although the U.S. government has provided financial support to FNMA and FHLMC in the past, there can be no assurance that it will support these or other government-sponsored entities in the future.

**ESG risk.** The fund's Adviser may consider ESG information in its investment research process. This may mean forgoing some investment opportunities available to funds that do not consider ESG information. In considering ESG information, the Adviser may use third party ESG ratings information that it believes to be reliable, but such information may not be accurate or complete, or may be biased. ESG considerations are not a primary focus of the fund, and the weight given by the Adviser to ESG considerations in making investment decisions will vary and, for any specific decision, they may be given little or no weight.

**Risks of non-U.S. investments.** Investing in non-U.S. issuers, or in U.S. issuers that have significant exposure to foreign markets, may involve unique risks compared to investing in securities of U.S. issuers. These risks are more pronounced for issuers in emerging markets or to the extent that the fund invests significantly in one region or country. These risks may include:

• Less information about non-U.S. issuers or markets may be available due to less rigorous disclosure or accounting standards or regulatory practices

• Many non-U.S. markets are smaller, less liquid and more volatile. In a changing market, the Adviser may not be able to sell the fund's securities at times, in amounts and at prices it considers reasonable

• Adverse effect of currency exchange rates or controls on the value of the fund's investments, or its ability to convert non-U.S. currencies to U.S. dollars

• The economies of non-U.S. countries may grow at slower rates than expected or may experience a downturn or recession

• Economic, political, regulatory and social developments, military conflicts and sanctions, nationalization or expropriation of assets, arbitrary application of laws and regulations or lack of rule of law, may adversely affect the securities markets

• It may be difficult for the fund to pursue claims or enforce judgments against a foreign bank, depository or issuer of a security, or any of their agents, in the courts of a foreign country

• The value of the fund's foreign investments may also be affected by foreign tax laws, special U.S. tax considerations and restrictions on receiving the investment proceeds from a foreign country. Withholding and other non-U.S. taxes may decrease the fund's return. The value of the fund's foreign investments also may be affected by U.S. tax considerations and restrictions in receiving investment proceeds from a foreign country

• Some markets in which the fund may invest are located in parts of the world that have historically been prone to natural disasters that could result in a significant adverse impact on the economies of those countries and investments made in those countries

• It is often more expensive for the fund to buy, sell and hold securities in certain foreign markets than in the U.S.

• A governmental entity may delay, or refuse or be unable to pay, interest or principal on its sovereign debt due to cash flow problems, insufficient foreign currency reserves, political considerations, the relative size of the governmental entity's debt position in relation to the economy or the failure to put in place economic reforms

• Investing in depositary receipts is subject to many of the same risks as investing directly in non-U.S. issuers. Depositary receipts may involve higher expenses and may trade at a discount (or premium) to the underlying security. In addition, depositary receipts may not pass through voting and other shareholder rights, and may be less liquid than the underlying securities listed on an exchange

• A number of countries in the European Union (EU) have experienced, and may continue to experience, severe economic and financial difficulties. Additional EU member countries may also fall subject to such difficulties. A number of countries in Europe have suffered terror attacks, and additional attacks may occur in the future. In addition, the United Kingdom has withdrawn from the EU (commonly known as "Brexit"). The range and potential implications of possible political, regulatory, economic, and market outcomes of Brexit cannot be fully known but could be significant,

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potentially resulting in increased volatility, illiquidity and potentially lower economic growth in the affected markets, which will adversely affect the fund's investments, particularly in euro-denominated securities and derivative contracts, securities of issuers located in the EU or with significant exposure to EU issuers or countries

• China and other developing market countries may be subject to considerable degrees of economic, political and social instability. Markets in China and other Asian countries are relatively new and undeveloped. China's economic health is largely dependent upon exports, and may be dependent upon the economies of other Asian countries. Investments in Chinese and other Asian issuers could be adversely affected by changes in government policies, or trade or political disputes with major trading partners, including the U.S. China's growing trade surplus with the U.S. has given rise to trade disputes and the imposition of tariffs. The U.S. has also restricted the sale of certain goods to China. In addition, the U.S. government has imposed restrictions on U.S. investor participation in certain Chinese investments. These matters could adversely affect China's economy. China's central government exercises significant control over China's economy and may intervene in the financial markets, such as by imposing trading restrictions, and investments in Chinese issuers could be adversely affected by changes in government policies. The Chinese economy could be adversely affected by supply chain disruptions. The effect of China's recent relaxation of its zero-COVID policy on China's economy and global supply chains may not be fully known for some time. An economic slowdown in China could adversely affect economies of other emerging market countries that trade with China, as well as companies operating in those countries. Economies of Asian countries and Asian issuers could be adversely affected by regional security threats. In addition, China's long-running conflict over Taiwan's sovereignty, border disputes with many neighbors and historically strained relations with other Asian countries could result in military conflict that could adversely impact the economies of China and other Asian countries, disrupt supply chains, and severely affect global economies and markets

• If one or more stockholders of a supranational entity such as the World Bank fail to make necessary additional capital contributions, the entity may be unable to pay interest or repay principal on its debt securities

• Sanctions or other government actions against certain countries could negatively impact the fund's investments in securities that have exposure to those countries

• Russia launched a large-scale invasion of Ukraine on February 24, 2022. In response to the military action by Russia, various countries, including the U.S., the United Kingdom, and European Union, issued broad-ranging economic sanctions against Russia and Belarus and certain companies and individuals. Russia has taken retaliatory actions, including preventing repatriation of capital by U.S. and other investors. Since then, Russian securities have lost all, or nearly all, their market value, and many other issuers, securities and markets have been adversely affected. The ongoing conflict has resulted in significant market disruptions, including in certain markets, industries and sectors, such as the oil and natural gas markets, and negatively affected global supply chains, food supplies, inflation and global growth. The U.S. and other countries may impose sanctions on other countries, companies and individuals in light of Russia's military invasion. The extent and duration of the military action or future escalation of such hostilities, the extent and impact of existing and future sanctions, market disruptions and volatility, and the result of any diplomatic negotiations cannot be predicted. These and any related events could have a significant impact on the value and liquidity of certain fund investments, on fund performance and the value of an investment in the fund

• Circumstances that impact one country could have profound impacts on other countries and on global economies or markets

Additional risks of investing in emerging markets include:

• The extent of economic development, political stability, market depth, infrastructure, capitalization and regulatory oversight can be less than in more developed markets. Emerging market economies tend to be less diversified than those of more developed countries. They typically have fewer medical and economic resources than more developed countries and thus they may be less able to control or mitigate the effects of a pandemic

• Emerging market countries may experience rising interest rates, or, more significantly, rapid inflation or hyperinflation

• The fund could experience a loss from settlement and custody practices in some emerging markets

• The possibility that a counterparty may not complete a currency or securities transaction

• Low trading volumes may result in a lack of liquidity and in extreme price volatility

**Derivatives risk.** Using futures, options and other derivatives exposes the fund to special risks and costs and may result in losses to the fund, even when used for hedging purposes. Using derivatives can increase losses and reduce opportunities for gain when market prices, interest rates or currencies, or the derivative instruments themselves, behave in a way not anticipated by the fund, especially in abnormal market conditions. Using derivatives can have a leveraging effect (which

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**Risk factors**

may increase investment losses) and increase the fund's volatility, which is the degree to which the fund's share price may fluctuate within a short time period. Certain derivatives have the potential for unlimited loss, regardless of the size of the fund's initial investment. Derivatives are generally subject to the risks applicable to the assets, rates, indices or other indicators underlying the derivative. If changes in a derivative's value do not correspond to changes in the value of the fund's other investments or do not correlate well with the underlying assets, rate or index, the fund may not fully benefit from, or could lose money on, or could experience unusually high expenses as a result of, the derivative position. The other parties to certain derivative transactions present the same types of credit risk as issuers of fixed income securities. Derivatives also tend to involve greater liquidity risk and they may be difficult to value. The fund may be unable to terminate or sell its derivative positions. In fact, many over-the-counter derivatives will not have liquidity beyond the counterparty to the instrument. The fund also may have to sell assets at inopportune times to satisfy its obligations. Use of derivatives or similar instruments may have different tax consequences for the fund than an investment in the underlying security, and those differences may affect the amount, timing and character of income distributed to shareholders. The fund's use of derivatives may also increase the amount of taxes payable by shareholders. Risks associated with the use of derivatives are magnified to the extent that a an increased portion of the fund's assets are committed to derivatives in general or are invested in just one or a few types of derivatives.

The U.S. government and foreign governments have adopted and implemented or are in the process of adopting and implementing regulations governing derivative markets, including mandatory clearing of certain derivatives, margin and reporting requirements. The ultimate impact of the regulations remains unclear. Additional regulation of derivatives may make derivatives more costly, may limit their availability or utility or otherwise adversely affect their performance, or may disrupt markets. The fund may be exposed to additional risks as a result of the additional regulations. The extent and impact of the regulations are not yet fully known and may not be for some time. In addition, the SEC has proposed a new rule that would change the regulation of the use of derivatives by registered investment companies, such as the fund. If the proposed rule takes effect, it could limit the ability of the fund to invest in derivatives.

There are several risks associated with the use of futures contracts and futures options. A purchase or sale of a futures contract may result in losses in excess of the amount invested in the futures contract. While the fund may enter into futures contracts and options on futures contracts for hedging purposes, the use of futures contracts and options on futures contracts might result in a poorer overall performance for the fund than if it had not engaged in any such transactions. There may be an imperfect correlation between the fund's portfolio holdings and futures contracts or options on futures contracts entered into by the fund, which may prevent the fund from achieving the intended hedge or expose the fund to risk of loss. The degree of imperfection of correlation depends on circumstances such as variations in market demand for futures, futures options and the related securities, including technical influences in futures and futures options trading, and differences between the securities markets and the securities underlying the standard contracts available for trading. Further, the fund's use of futures contracts and options on futures contracts to reduce risk involves costs and will be subject to the Adviser's ability to predict correctly changes in interest rate relationships or other factors.

Under an interest rate swap agreement, the payment obligations, if any, of the fund and the counterparty are netted against each other, resulting in a net payment due either from the fund or the counterparty. Depending on whether the fund would be entitled to receive payments from the counterparty on a swap or cap, which in turn would depend on the general state of short-term interest rates at that point in time, a default by a counterparty could negatively impact the fund's overall performance. In addition, at the time an interest rate swap or cap transaction reaches its scheduled termination date, there is a risk that the fund would not be able to obtain a replacement transaction or that the terms of the replacement would not be as favorable as on the expiring transaction. If this occurs, it could have a negative impact on the fund's performance.

The use of interest rate swaps and caps is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio security transactions. Depending on the state of interest rates in general, the fund's use of interest rate swaps or caps could enhance or harm the fund's overall performance. To the extent there is a decline in interest rates, the value of the interest rate swap or cap could decline, and could result in a decline in the fund's net asset value. In addition, if short-term interest rates are lower than the fund's fixed rate of payment on the interest rate swap, the swap will reduce the fund's net earnings. If, on the other hand, short-term interest rates are higher than the fixed rate of payment on the interest rate swap, the swap will enhance the fund's net earnings. Buying interest

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rate caps could enhance the fund's performance by providing a maximum leverage expense. Buying interest rate caps could also decrease the fund's net earnings in the event that the premium paid by the fund to the counterparty exceeds the additional amount the fund would have been required to pay had it not entered into the cap agreement.

Interest rate swaps and caps do not involve the delivery of securities or other underlying assets or principal. Accordingly, the risk of loss with respect to interest rate swaps is limited to the net amount of interest payments that the fund is contractually obligated to make and any termination payments potentially owed by the fund. If the counterparty defaults, the fund would not be able to use the anticipated net receipts under the swap or cap to offset interest payments on borrowings. Depending on whether the fund would be entitled to receive payments from the counterparty on the swap or cap, which in turn would depend on the general state of short-term interest rates at that point in time, such a default could negatively impact the fund's performance.

The fund will be required to maintain its positions with a clearing organization through one or more clearing brokers. The clearing organization will require the fund to post margin and the broker may require the fund to post additional margin to secure the fund's obligations. The amount of margin required may change from time to time. In addition, cleared transactions may be more expensive to maintain than over-the-counter transactions and may require the fund to deposit larger amounts of margin. The fund may not be able to recover margin amounts if the broker has financial difficulties. Also, the broker may require the fund to terminate a derivatives position under certain circumstances. This may cause the fund to lose money. The fund's ability to use certain derivative instruments currently is limited by Commodity Futures Trading Commission rules.

**Credit default swap risk.** Credit default swap contracts, a type of derivative instrument, involve heightened risks and may result in losses to the fund. Credit default swaps may in some cases be illiquid and difficult to value, and they increase credit risk since the fund has exposure to both the issuer of the referenced obligation and the counterparty to the credit default swap. If the fund buys a credit default swap, it will be subject to the risk that the credit default swap may expire worthless, as the credit default swap would only generate income in the event of a default on the underlying debt security or other specified event. As a buyer, the fund would also be subject to credit risk relating to the seller's payment of its obligations in the event of a default (or similar event). If the fund sells a credit default swap, it will be exposed to the credit risk of the issuer of the obligation to which the credit default swap relates. As a seller, the fund would also be subject to leverage risk, because it would be liable for the full notional amount of the swap in the event of default (or similar event). Swaps may be difficult to unwind or terminate. Certain index-based credit default swaps are structured in tranches, whereby junior tranches assume greater default risk than senior tranches. The absence of a central exchange or market for swap transactions may lead, in some instances, to difficulties in trading and valuation, especially in the event of market disruptions. New regulations require many kinds of swaps to be executed through a centralized exchange or regulated facility and be cleared through a regulated clearinghouse. Although this clearing mechanism is generally expected to reduce counterparty credit risk, it may disrupt or limit the swap market and may not result in swaps being easier to trade or value. As swaps become more standardized, the fund may not be able to enter into swaps that meet its investment needs. The fund also may not be able to find a clearinghouse willing to accept the swaps for clearing. In a cleared swap, a central clearing organization will be the counterparty to the transaction. The fund will assume the risk that the clearinghouse may be unable to perform its obligations.

**Forward foreign currency transactions risk.** To the extent that the fund enters into forward foreign currency transactions, it may not fully benefit from or may lose money on the transactions if changes in currency rates do not occur as anticipated or do not correspond accurately to changes in the value of the fund's holdings, or if the counterparty defaults. Such transactions may also prevent the fund from realizing profits on favorable movements in exchange rates. Risk of counterparty default is greater for counterparties located in emerging markets. The fund's ability to use forward foreign currency transactions successfully depends on a number of factors, including the forward foreign currency transactions being available at prices that are not too costly, the availability of liquid markets, and Amundi US's judgment regarding the direction of changes in currency exchange rates.

**Risks of investing in inverse floating rate obligations.** The interest rate on inverse floating rate obligations will generally decrease as short-term interest rates increase, and increase as short-term rates decrease. Due to their leveraged structure, the sensitivity of the market value of an inverse floating rate obligation to changes in interest rates is generally greater than a comparable long-term bond issued by the same issuer and with similar credit quality, redemption and maturity provisions. Inverse floating rate obligations may be volatile and involve leverage risk.

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**Risk factors**

**Leveraging risk.** The value of your investment may be more volatile and other risks tend to be compounded if the fund borrows or uses derivatives or other investments that have embedded leverage. Leverage generally magnifies the effect of any increase or decrease in the value of the fund's underlying assets and creates a risk of loss of value on a larger pool of assets than the fund would otherwise have, potentially resulting in the loss of all assets. Engaging in such transactions may cause the fund to liquidate positions when it may not be advantageous to do so to satisfy its obligations. New derivatives regulations require the fund, to the extent it uses derivatives to a material extent, to, among other things, comply with certain overall limits on leverage. These regulations may limit the ability of the fund to pursue its investment strategies and may not be effective to mitigate the fund's risk of loss from derivatives.

**Mortgage dollar roll transactions risk.** The benefits to the fund from mortgage dollar roll transactions depend upon the Adviser's ability to forecast mortgage prepayment patterns on different mortgage pools. The fund may lose money if, during the period between the time it agrees to the forward purchase of the mortgage securities and the settlement date, these securities decline in value due to market conditions or prepayments on the underlying mortgages.

**Risks of zero coupon bonds, payment in kind, deferred and contingent payment securities.** Zero coupon bonds (which do not pay interest until maturity) and payment in kind securities (which pay interest in the form of additional securities) may be more speculative and may fluctuate more in value than securities which pay income periodically and in cash. Payment in kind securities are usually less volatile than zero coupon bonds, but more volatile than cash pay securities. These securities are more likely to respond to changes in interest rates than interest-bearing securities having similar maturities and credit quality. The higher interest rates of payment in kind securities reflect the payment deferral and increased credit risk associated with these instruments, and payment in kind instruments generally represent a significantly higher credit risk than coupon bonds. These securities are more sensitive to the credit quality of the underlying issuer. Payment in kind securities may be difficult to value because their continuing accruals require continuing judgments about the collectability of the deferred payments and the value of any associated collateral. Deferred interest securities are obligations that generally provide for a period of delay before the regular payment of interest begins and are issued at a significant discount from face value. The interest rate on contingent payment securities is determined by the outcome of an event, such as the performance of a financial index. If the financial index does not increase by a prescribed amount, the fund may receive no interest.

Unlike bonds that pay interest throughout the period to maturity, the fund generally will realize no cash until maturity and, if the issuer defaults, the fund may obtain no return at all on its investment. In addition, although the fund receives no periodic cash payments on such securities, the fund is deemed for tax purposes to receive income from such securities, which applicable tax rules require the fund to distribute to shareholders. Such distributions may be taxable when distributed to shareholders and, in addition, could reduce the fund's reserve position and require the fund to sell securities and incur a gain or loss at a time it may not otherwise want in order to provide the cash necessary for these distributions.

**Tax and regulated investment company qualification risk.** As described in more detail below, in order to qualify for the favorable tax treatment generally available to regulated investment companies, at least 90% of the fund's gross income each taxable year must consist of qualifying income, the fund must meet certain asset diversification tests at the end of each fiscal quarter, and the fund must meet certain distribution requirements for each taxable year.

The tax treatment of certain ILS is not entirely clear. Certain of the fund's investments (including, potentially, certain ILS) may generate income that is not qualifying income. The fund might generate more non-qualifying income than anticipated, might not be able to generate qualifying income in a particular taxable year at levels sufficient to meet the qualifying income test, or might not be able to determine the percentage of qualifying income it has derived for a taxable year until after year-end. The fund may determine not to make an investment that it otherwise would have made, or may dispose of an investment it otherwise would have retained (potentially resulting in the recognition of taxable gain or loss, and potentially under disadvantageous circumstances), in an effort to meet the qualifying income test.

Certain investments made by the fund (including certain ILS) may be treated as equity in passive foreign investment companies ("PFICs") for federal income tax purposes. In general, a PFIC is a foreign corporation (i) that receives at least 75% of its annual gross income from passive sources (such as interest, dividends, certain rents and royalties, or capital gains) or (ii) where at least 50% of its assets (computed based on average fair market value) either produce or are held for the production of passive income. If the fund acquires any equity interest in a PFIC, the fund could be subject to U.S. federal income tax and additional interest charges on "excess distributions" received from the PFIC or on gain from the sale of stock in the PFIC, even if all income or gain actually received by the fund is timely distributed to its shareholders.

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The fund would not be able to pass through to its shareholders any credit or deduction for such a tax. A "qualified electing fund" election or a "mark to market" election may be available that would ameliorate these adverse tax consequences, but such elections could require the fund to recognize taxable income or gain (which would be subject to the distribution requirements applicable to regulated investment companies, as described above) without the concurrent receipt of cash. In order to satisfy the distribution requirements and avoid a tax on the fund, the fund may be required to liquidate portfolio securities that it might otherwise have continued to hold (potentially resulting in the recognition of taxable gain or loss, and potentially under disadvantageous circumstances), or the fund may be required to borrow cash. Gains from the sale of stock of PFICs may also be treated as ordinary income. In order for the fund to make a qualified electing fund election with respect to a PFIC, the PFIC would have to agree to provide certain tax information to the fund on an annual basis, which it might not agree to do. The fund may limit and/or manage its holdings in PFICs to limit its tax liability or maximize its after-tax return from these investments.

If a sufficient portion of the interests in a foreign issuer (including certain ILS issuers) is held or deemed held by the fund, independently or together with certain other U.S. persons, that issuer may be treated as a "controlled foreign corporation" (a "CFC") with respect to the fund, in which case the fund will be required to take into account each year, as ordinary income, its share of certain portions of that issuer's income, whether or not such amounts are distributed. The fund may have to dispose of its portfolio securities (potentially resulting in the recognition of taxable gain or loss, and potentially under disadvantageous circumstances) to generate cash, or may have to borrow the cash, to meet its distribution requirements and avoid fund-level taxes. In addition, some fund gains on the disposition of interests in such an issuer may be treated as ordinary income. The fund may limit and/or manage its holdings in issuers that could be treated as CFCs in order to limit its tax liability or maximize its after-tax return from these investments.

If the fund were to fail to qualify for treatment as a regulated investment company, it would generally be taxed in the same manner as an ordinary corporation, and distributions to its shareholders generally would not be deductible by the fund in computing its taxable income. Under certain circumstances, the fund may be able to cure a failure to meet the qualifying income test or the diversification test if such failure was due to reasonable cause and not willful neglect, but in order to do so the fund may incur a significant penalty tax that would reduce (and potentially could eliminate) the fund's returns.

**Valuation risk.** Many factors may influence the price at which the fund could sell any particular portfolio investment. The sales price may well differ - higher or lower - from the fund's valuation of the investment, and such differences could be significant, particularly for illiquid securities and securities that trade in thin markets and/or markets that experience extreme volatility. These differences may increase significantly and affect fund investments more broadly during periods of market volatility. Nearly all of the fund's investments are valued using fair value methodologies. Investors who purchase or submit a repurchase request of fund shares may receive fewer or more shares, or lower or higher repurchase proceeds, than they would have received if the securities had not been fair-valued or if a different valuation methodology had been used. The value of foreign securities, certain fixed income securities and currencies, as applicable, may be materially affected by events after the close of the markets on which they are traded, but before the fund determines its net asset value. The fund's ability to value its investments may also be impacted by technological issues and/or errors by pricing services or other third party service providers.

**Concentration risk.** A fund that invests a significant percentage of its assets in a single industry may be particularly susceptible to adverse economic, regulatory or other events affecting that industry and may be more risky than a fund that does not concentrate in an industry.

Industries in the financial segment, such as insurance companies, may be sensitive to changes in interest rates, credit rating downgrades, decreased liquidity in credit markets, and general economic activity and are generally subject to extensive government regulation.

**Non-diversification risk.** The fund is not diversified, which means that it can invest a higher percentage of its assets in the securities of any one or more issuers than a diversified fund. Being non-diversified may magnify the fund's losses from adverse events affecting a particular issuer.

**Cybersecurity risk.** Cybersecurity failures by and breaches of the fund's Adviser, transfer agent, distributor, custodian, fund accounting agent or other service providers may disrupt fund operations, interfere with the fund's ability to calculate its NAV, prevent fund shareholders from purchasing shares, submitting repurchase requests, or receiving distributions

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**Risk factors**

or receiving timely information regarding the fund or their investment in the fund, cause loss of or unauthorized access to private shareholder information, and result in financial losses to the fund and its shareholders, regulatory fines, penalties, reputational damage, or additional compliance costs. Substantial costs may be incurred in order to prevent any cyber incidents in the future. The fund and its shareholders could be negatively impacted as a result.

**Expense risk.** Your actual costs of investing in the fund may be higher than the expenses shown in "Annual fund operating expenses" for a variety of reasons. For example, expense ratios may be higher than those shown if overall net assets decrease. Net assets are more likely to decrease and fund expense ratios are more likely to increase when markets are volatile.

**Portfolio selection risk.** The Adviser's judgment about the quality, relative yield, relative value or market trends affecting a particular sector or region, market segment, security, industry or about interest rates or other market factors may prove to be incorrect or may not produce the desired results, or there may be imperfections, errors or limitations in the models, tools and information used by the Adviser.

**Repurchase offers risk.** The fund is an "interval fund" and, in order to provide some liquidity to shareholders, will make periodic offers to repurchase between 5% and 25% of its outstanding shares at NAV, pursuant to Rule 23c-3 under the 1940 Act. The fund believes that these repurchase offers are generally beneficial to the fund's shareholders, and repurchases generally will be funded from available cash or sales of portfolio securities. However, repurchase offers and the need to fund repurchase obligations may affect the ability of the fund to be fully invested or force the fund to maintain a higher percentage of its assets in liquid investments, which may harm the fund's investment performance. Moreover, reduction in the size of the fund through repurchases may result in untimely sales of portfolio securities (with associated imputed transaction costs, which may be significant), and may limit the ability of the fund to participate in new investment opportunities or to achieve its investment objective. The fund does not anticipate employing investment leverage, but if it were to do so in the future, repurchases of shares may compound the adverse effects of leverage in a declining market. In addition, if the fund borrows money to finance repurchases, interest on that borrowing will negatively affect shareholders who do not request that their shares be repurchased by increasing fund expenses and reducing any net investment income. If a repurchase offer is oversubscribed and the fund determines not to repurchase additional shares beyond the repurchase offer amount, or if shareholder repurchase requests are in an amount of shares greater than that which the fund is entitled to repurchase, the fund will repurchase shares on a pro rata basis, and shareholders will have to wait until the next repurchase offer to make another repurchase request. As a result, shareholders may be unable to liquidate all or a given percentage of their investment in the fund at NAV during a particular repurchase offer. Some shareholders, in anticipation of proration, may submit more shares for repurchase than they wish to have repurchased in a particular quarter, thereby increasing the likelihood that proration will occur. A shareholder may be subject to market and other risks, and the NAV of shares submitted for repurchase in a repurchase offer may decline to the extent there is any delay between the repurchase request deadline and the date on which the NAV for such shares is determined. In addition, the repurchase of shares by the fund may be a taxable event to shareholders.

**Anti-takeover provisions.** The fund's Agreement and Declaration of Trust and by-laws include provisions that could limit the ability of other entities or persons to acquire control of the fund or convert the fund to open-end status.

To learn more about the fund's investments and risks, you should obtain and read the statement of additional information. Please note that there are many other factors that could adversely affect your investment and that could prevent the fund from achieving its goals.

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**Management of the fund**

**TRUSTEES AND OFFICERS**

The fund's Board of Trustees provides broad supervision over the affairs of the fund. The officers of the fund are responsible for the fund's operations. The Trustees and officers of the fund, together with their principal occupations and other affiliations during the past five years, are listed in the Statement of Additional Information. Each of the Trustees serves as a Trustee of other U.S. registered investment portfolios for which the Adviser serves as investment adviser.

**INVESTMENT ADVISER**

The fund has contracted with the Adviser to act as its investment adviser with respect to all investments of the fund. The Adviser is an indirect, wholly owned subsidiary of Amundi and Amundi's wholly owned subsidiary, Amundi Holdings US, Inc. Amundi, one of the world's largest asset managers, is headquartered in Paris, France. As of December 31, 2022, Amundi had more than $2.03 trillion in assets under management worldwide. As of December 31, 2022, Amundi US (and its U.S. affiliates) had over $88 billion in assets under management. Certain Trustees or officers of the fund are also directors and/or officers of certain of Amundi's subsidiaries, including the Adviser. The address of the Adviser is 60 State Street, Boston, Massachusetts 02109.

The Adviser is responsible for managing the fund's overall investment program, supervising the fund's overall compliance program and providing for the general management of the business affairs of the fund.

**ADVISORY AGREEMENT**

Under the terms of the advisory agreement (the "Advisory Agreement"), the fund will pay to the Adviser monthly, as compensation for the services rendered and expenses paid by it, a fee equal on an annual basis to 1.75% of the fund's average daily net assets. This fee is accrued daily and paid monthly.

A discussion regarding the basis for the Board of Trustees' approval of the management contract is available in the fund's annual report to shareholders for the period ended October 31, 2022.

**ADMINISTRATION AGREEMENT**

The fund has entered in an administration agreement with the Adviser, pursuant to which the Adviser will provide certain administrative and accounting services to the fund. Amundi US is reimbursed for its cost of providing such services. The cost of providing these services is based on direct costs and costs of overhead, subject to review by the Board of Trustees.

Under the terms of the administration agreement with the fund, the Adviser pays or reimburses the fund for expenses relating to its services for the fund, with the exception of the following, which are to be paid by the fund: (a) charges and expenses for fund accounting, pricing and appraisal services and related overhead, including, to the extent such services are performed by personnel of the Adviser, or its affiliates, office space and facilities and personnel compensation, training and benefits; (b) the charges and expenses of auditors; (c) the charges and expenses of any custodian, transfer agent, plan agent, dividend disbursing agent and registrar appointed by the fund; (d) issue and transfer taxes, chargeable to the fund in connection with securities transactions to which the fund is a party; (e) insurance premiums, interest charges, any expenses in connection with any preferred shares or other form of leverage, dues and fees for membership in trade associations and all taxes and corporate fees payable by the fund to federal, state or other governmental agencies; (f) fees and expenses involved in registering and maintaining registrations of the fund and/or its shares; (g) all expenses of shareholders' and Trustees' meetings and of preparing, printing and distributing prospectuses, notices, proxy statements and all reports to shareholders and to governmental agencies; (h) charges and expenses of legal counsel to the fund and the Trustees; (i) compensation of those Trustees of the fund who are not affiliated with or interested persons of Amundi US, the fund (other than as Trustees), Amundi US, Inc. or Amundi Distributor US, Inc.; (j) the cost of preparing and printing share certificates; (k) interest on borrowed money; (l) fees payable by the fund under management agreements and the administration agreement; and (m) extraordinary expenses. The fund shall also assume and pay any other expense that the fund, the Adviser or any other agent of the fund may incur not listed above that is approved by the Board of Trustees (including a majority of the Independent Trustees) as being an appropriate expense of the fund. In addition, the fund shall pay all brokers' and underwriting commissions chargeable to the fund in connection with securities transactions to which the fund is a party.

**PORTFOLIO MANAGER**

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**Management of the fund**

Day-to-day management of the fund's portfolio is the responsibility of Chin Liu and Campbell Brown. The portfolio managers are supported by the Adviser's fixed income team. Members of this team manage other Pioneer funds investing primarily in fixed income securities. The portfolio managers and the team also may draw upon the research and investment management expertise of the global research teams, which provide fundamental and quantitative research and include members from one or more of Amundi US's affiliates.

Mr. Liu is a Managing Director, Director of Insurance-Linked Securities and Director of Fixed Income Solutions and Responsible Investment Research of Amundi US. He joined Amundi US in 2007 and has been an investment professional since 2005. Prior to joining Amundi US, Mr. Liu was a quantitative equity analyst for Numeric Investors and a customer investment researcher for E\*Trade Financial. Mr. Liu has served as a portfolio manager of the fund since 2018.

Mr. Brown is a Vice President of Amundi US. He joined Amundi US in October 2018. Prior to joining Amundi US, Mr. Brown worked as a Property Treaty Underwriter for Odyssey Reinsurance Company. Mr. Brown has served as a portfolio manager of the fund since 2019.

The Statement of Additional Information provides additional information about the portfolio managers' compensation, other accounts managed by the portfolio managers and the portfolio managers' ownership of securities in the fund.

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**Dividends and distributions**

The fund expects to declare and pay dividends of net investment income annually and realized net capital gains, if any, at least annually. Unless shareholders specify otherwise, dividends will be reinvested in shares of the fund. You may notify the Transfer Agent in writing to:

• choose to receive dividends or distributions (or both) in cash; or

• change the way you currently receive distributions

**PLAN OF DISTRIBUTION**

Amundi Distributor US, Inc. (the "Distributor") is the principal underwriter of shares of the fund. Shares may be purchased only through the Distributor. The Distributor acts as the distributor of the shares of the fund on a best efforts basis, subject to various conditions, pursuant to the terms of a distributor's contract with the fund. The Distributor is not obligated to sell any specific amount of shares of the fund. The Distributor will also act as agent for the fund in connection with repurchases of shares.

Shares of the fund will be continuously offered through the Distributor, as the exclusive distributor of the fund's shares. The fund has authorized one or more intermediaries (e.g., brokers, investment advisers, etc.) (collectively, "intermediaries") to receive orders on its behalf. Such intermediaries are authorized to designate other intermediaries to receive orders on the fund's behalf. The fund will be deemed to have received an order when an authorized broker or, if applicable, a broker's authorized designee, receives the order. The shares will be offered at the NAV per share calculated each regular business day.

The fund and the Distributor will have the sole right to accept orders to purchase shares and reserve the right to reject any order in whole or in part.

Amundi US or the Distributor may waive the fund's minimum investment requirements (see "Purchase of Shares").

Additional conditions may apply to investments in the fund made by shareholders investing through financial intermediaries, programs sponsored by financial intermediaries and retirement plans. The investment professional or intermediary may charge you a transaction-based, administrative or other fee for its services. These conditions and fees are in addition to those imposed by the fund and its affiliates. You should ask your investment professional or financial intermediary about its services and any applicable fees. In addition, when you invest through an account that is not in your name, you generally may buy and sell shares and complete other transactions only through the account. Ask your investment professional or financial intermediary for more information.

No market currently exists for the fund's shares. The fund does not currently intend to list its shares for trading on any securities exchange, and does not anticipate that a secondary market will develop for its shares. Neither Amundi US, nor the Distributor, intends to make a market in the fund's shares.

The Distributor is not obligated to buy any of the shares and does not intend to make a market in the shares.

**Payments to financial intermediaries**

Your financial intermediary may receive compensation from Amundi US and its affiliates for the sale of fund shares and related services, including administrative services and transaction processing.

Amundi US and its affiliates may make additional payments to your financial intermediary. These payments may provide your financial intermediary with an incentive to favor the Pioneer funds over other mutual funds or assist the Distributor in its efforts to promote the sale of the fund's shares. Financial intermediaries include broker-dealers, banks (including bank trust departments), registered investment advisers, financial planners, retirement plan administrators and other types of intermediaries.

Amundi US makes these additional payments (sometimes referred to as "revenue sharing") to financial intermediaries out of its own assets, which may include profits derived from services provided to the fund or service fees. Amundi US may base these payments on a variety of criteria, including the amount of sales or assets of the Pioneer funds attributable to the financial intermediary or as a per transaction fee.

Not all financial intermediaries receive additional compensation and the amount of compensation paid varies for each financial intermediary. In certain cases, these payments may be significant. Amundi US determines which firms to support and the extent of the payments it is willing to make, generally choosing firms that have a strong capability to

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**Dividends and distributions**

effectively distribute shares of the Pioneer funds and that are willing to cooperate with Amundi US's promotional efforts. Amundi US also may compensate financial intermediaries (in addition to amounts that may be paid by the fund) for providing certain administrative services and transaction processing services.

Amundi US may benefit from revenue sharing if the intermediary features the Pioneer funds in its sales system (such as by placing certain Pioneer funds on its preferred fund list or giving access on a preferential basis to members of the financial intermediary's sales force or management). In addition, the financial intermediary may agree to participate in the Distributor's marketing efforts (such as by helping to facilitate or provide financial assistance for conferences, seminars or other programs at which Amundi US personnel may make presentations on the Pioneer funds to the intermediary's sales force). To the extent intermediaries sell more shares of the Pioneer funds or retain shares of the Pioneer funds in their clients' accounts, Amundi US receives greater management and other fees due to the increase in the Pioneer funds' assets. The intermediary may earn a profit on these payments if the amount of the payment to the intermediary exceeds the intermediary's costs.

Your intermediary may charge you additional fees or commissions other than those disclosed in this prospectus. Intermediaries may categorize and disclose these arrangements differently than in the discussion above and in the statement of additional information. You can ask your financial intermediary about any payments it receives from Amundi US or the Pioneer funds, as well as about fees and/or commissions it charges.

Amundi US and its affiliates may have other relationships with your financial intermediary relating to the provision of services to the Pioneer funds, such as providing omnibus account services or effecting portfolio transactions for the Pioneer funds. If your intermediary provides these services, Amundi US or the Pioneer funds may compensate the intermediary for these services. In addition, your intermediary may have other relationships with Amundi US or its affiliates that are not related to the Pioneer funds.

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**Purchase of shares**

Shares of beneficial interest in the fund are being offered during an initial offering period at the offering price, which is $10.00 per share. The fund expects the initial offering of shares to terminate shortly following commencement of investment operations, or such earlier or later date as Amundi US may determine in its discretion. Subsequent to the initial offering, shares are expected to be offeredon a continuous basis at their net asset value per share. During any continuous offering, shares may be purchased through the fund's Distributor.

Any continuous offering may be discontinued at any time. The fund and the Distributor will have the sole right to accept orders to purchase shares and reserve the right to reject any order in whole or in part.

Following completion of the initial offering period, the fund generally expects to accept orders to purchase shares on a quarterly basis. However, the fund's ability to accept orders to purchase shares may be limited, including during periods when, in the judgment of Amundi US, appropriate investments for the fund are not available.

Shares are generally available for purchase by registered investment advisers acting in a fiduciary capacity on behalf of their clients and by or through other qualified intermediaries and programs sponsored by such qualified financial intermediaries. Shares are also available to certain direct investors, which may be individuals, trusts, foundations and other institutional investors. Initial investments in the fund by or through a registered investment adviser or other qualified financial intermediary are subject to a $1,000,000 minimum per registered investment adviser or intermediary. Initial investments in the fund by direct investors are subject to a $1,000,000 minimum. There is no minimum investment requirement for the following groups of direct investors: (i) current or former trustees and officers of the fund; (ii) partners and employees of legal counsel to the fund (at the time of initial share purchase); and (iii) certain employees of Amundi US and its affiliates (at the time of initial share purchase) who are qualified to invest in the fund. Registered investment advisers and other financial intermediaries may impose different or additional minimum investment and eligibility requirements from those of the fund. Please contact the fund's Distributor or your registered investment adviser or other financial intermediary for more information. Amundi US or the Distributor may waive these minimum investment requirements.

The fund does not offer share certificates. Shares are electronically recorded.

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**Periodic repurchase offers**

The fund is a closed-end "interval" fund and, to provide some liquidity and the ability to receive NAV on a disposition of at least a portion of your shares, makes periodic offers to repurchase shares. Except as permitted by the fund's interval structure, no shareholder will have the right to require the fund to repurchase its shares. No public market for shares exists, and none is expected to develop in the future. Consequently, shareholders generally will not be able to liquidate their investment other than as a result of repurchases of their shares by the fund.

The fund has adopted, pursuant to Rule 23c-3 under the 1940 Act, a fundamental policy, which cannot be changed without shareholder approval, requiring the fund to offer to repurchase at least 5% and up to 25% of its shares at NAV on a regular schedule. Although the policy permits repurchases of between 5% and 25% of the fund's outstanding shares, for each repurchase offer, the fund expects to offer to repurchase 10% of its outstanding shares unless the fund's Board of Trustees has approved a higher or lower amount for that repurchase offer.

The fund is required to make repurchase offers every three months. The fund expects the initial offering of shares to terminate shortly following commencement of investment operations, or such earlier or later date as Amundi US may determine in its discretion. The date on which the repurchase price for shares is determined will occur no later than the 14th day after the repurchase request deadline (or the next business day, if the 14th day is not a business day).

When a repurchase offer commences, the fund sends, at least 21 days before the repurchase request deadline, written notice to each shareholder setting forth, among other things:

• The percentage of outstanding shares that the fund is offering to repurchase and how the fund will purchase shares on a pro rata basis if the offer is oversubscribed.

• The date on which a shareholder's repurchase request is due (the repurchase deadline).

• The date that will be used to determine the fund's NAV applicable to the repurchase offer (the "repurchase date"). See "Net Asset Value" above.

• The date by which the fund will pay to shareholders the proceeds from their shares accepted for repurchase.

• The NAV of the shares as of a date no more than seven days before the date of the written notice and the means by which shareholders may ascertain the NAV.

• The procedures by which shareholders may request that their shares be repurchased and the right of shareholders to withdraw or modify their repurchase requests before the repurchase request deadline.

• The circumstances in which the fund may suspend or postpone the repurchase offer.

This notice may be included in a shareholder report or other fund document. The repurchase request deadline will be strictly observed. A repurchase request is received in good order if it is properly completed and signed. If a shareholder fails to submit a repurchase request in good order by the repurchase request deadline, the shareholder will be unable to liquidate shares until a subsequent repurchase offer, and will have to resubmit a request in the next repurchase offer. Shareholders may withdraw or change a repurchase request with a proper instruction submitted in good order at any point before the repurchase request deadline.

*Determination of Repurchase Price and Payment for Shares.* The repurchase price payable in respect of a share is equal to the share's NAV as determined no later than the 14th day (or the next business day if the 14th day is not a business day) (the "repurchase pricing date") following the repurchase request deadline, and payment for all shares repurchased pursuant to these offers is made not later than seven days after the repurchase pricing date. Under normal circumstances, the repurchase pricing date falls ten days after the repurchase request deadline. The fund's NAV per share may change materially between the date a repurchase offer is mailed and the repurchase request deadline, and it may also change materially between the repurchase request deadline and repurchase pricing date. The method by which the fund calculates NAV is discussed above under "Net Asset Value." During the period an offer to repurchase is open, shareholders may obtain the current NAV by calling the fund's transfer agent at 1-844-391-3034.

The fund does not currently charge a repurchase fee, and it does not currently expect to impose a repurchase fee. However, the fund may charge a repurchase fee of up to 2.0%, which the fund would retain to help offset non-de minimis estimated costs related to the repurchase (such as bid to ask spreads) incurred by the fund, directly or indirectly, as a result of repurchasing shares, thus allocating estimated transaction costs to the shareholder whose shares are being repurchased.

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The fund may introduce, or modify the amount of, a repurchase fee at any time. The fund may also waive or reduce the repurchase fee if the Adviser determines that the repurchase is offset by a corresponding purchase of fund shares or if for other reasons the fund will not incur transaction costs or will incur reduced transaction costs.

*Suspension or Postponement of Repurchase Offers.* The fund may suspend or postpone a repurchase offer in limited circumstances set forth in Rule 23c-3 under the 1940 Act, as described below, but only with the approval of a majority of the Trustees, including a majority of Trustees who are not "interested persons" of the fund, as defined in the 1940 Act.

The fund may suspend or postpone a repurchase offer only: (1) if making or effecting the repurchase offer would cause the fund to lose its status as a regulated investment company under the Internal Revenue Code of 1986, as amended; (2) if making or effecting the repurchase offer would cause the shares that are subject to the offer that are either listed on a national securities exchange or quoted in an inter-dealer quotation system of a national securities association to be neither listed on any national securities exchange nor quoted on any inter-dealer quotation system of a national securities association; (3) for any period during which the NYSE or any other market in which the securities owned by the fund are principally traded is closed, other than customary weekend and holiday closings, or during which trading in such market is restricted; (4) for any period during which an emergency exists as a result of which disposal by the fund of securities owned by it is not reasonably practicable, or during which it is not reasonably practicable for the fund fairly to determine the value of its net assets; or (5) for such other periods as the SEC may by order permit for the protection of shareholders of the fund.

*Oversubscribed Repurchase Offers.* There is no minimum number of shares that must be submitted for repurchase before the fund will honor repurchase requests. However, the fund's Trustees set for each repurchase offer a maximum percentage of shares that may be repurchased by the fund. In the event a repurchase offer by the fund is oversubscribed, the fund may repurchase, but is not required to repurchase, additional shares up to a maximum amount of 2% of the outstanding shares of the fund. If the fund determines not to repurchase additional shares beyond the repurchase offer amount, or if shareholders submit for repurchase an amount of shares greater than that which the fund is entitled to repurchase, the fund will repurchase the shares submitted for repurchase on a pro rata basis.

If any shares that you wish to have repurchased by the fund are not repurchased because of proration, you will have to wait until the next repurchase offer and resubmit your repurchase request, and your repurchase request will not be given any priority over other shareholders' requests. Thus, there is a risk that the fund may not purchase all of the shares you wish to have repurchased in a given repurchase offer or in any subsequent repurchase offer. In anticipation of the possibility of proration, some shareholders may submit for repurchase more shares than they wish to have repurchased in a particular quarter, increasing the likelihood of proration.

**There is no assurance that you will be able to have your shares repurchased by the fund when or in the amount that you desire.**

*Consequences of Repurchase Offers.* From the time the fund distributes or publishes each repurchase offer notification until the repurchase pricing date for that offer, the fund must maintain liquid assets at least equal to the percentage of its shares subject to the repurchase offer. For this purpose, "liquid assets" means assets that may be sold or otherwise disposed of in the ordinary course of business, at approximately the price at which the fund values them, within the period between the repurchase request deadline and the repurchase payment date, or which mature by the repurchase payment date. The fund is also permitted to borrow up to the maximum extent permitted under the 1940 Act to meet repurchase requests.

If the fund borrows to finance repurchases, interest on that borrowing will negatively affect shareholders who do not submit their shares for repurchase by increasing the fund's expenses and reducing any net investment income. There is no assurance that the fund will be able sell a significant amount of additional shares so as to mitigate these effects.

The repurchase of shares by the fund will be a taxable event to shareholders, potentially even to those shareholders that do not participate in the repurchase. For a discussion of these tax consequences, see "Federal Income Tax Matters" below and "Tax Status" in the SAI.

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**Federal income tax matters**

The following is a summary discussion of certain U.S. federal income tax consequences that may be relevant to a shareholder acquiring, holding or disposing of shares of the fund. This discussion addresses only U.S. federal income tax consequences to U.S. shareholders who hold their shares as capital assets and does not address all of the U.S. federal income tax consequences that may be relevant to particular shareholders in light of their individual circumstances. This discussion also does not address the tax consequences to shareholders who are subject to special rules, including, without limitation, banks and financial institutions, insurance companies, real estate investment trusts, other regulated investment companies, dealers in securities or foreign currencies, foreign shareholders, shareholders who hold their shares as or in a hedge, a constructive sale, or a conversion transaction, S corporations, shareholders who are subject to the alternative minimum tax, shareholders whose functional currency is not the U.S. dollar, or governments or their agencies or instrumentalities. In addition, the discussion does not address any state, local, or non-U.S. or non-income tax consequences, and it does not address the effect of any treaty. The discussion reflects applicable tax laws of the United States as of the date of this Prospectus, which tax laws may be changed or subject to new interpretations by the courts or the Internal Revenue Service (the "IRS") retroactively or prospectively. No attempt is made to present a detailed explanation of all U.S. federal income tax concerns affecting the fund and its shareholders. Investors are urged to consult their own tax advisers to determine the specific tax consequences to them of acquiring, holding and disposing of shares in the fund, including the applicable federal, state, local and foreign tax consequences to them and the effect of possible changes in tax laws.

The fund has elected to be treated, and has qualified and intends to continue to qualify each year, as a "regulated investment company" under Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"), so that it will not pay U.S. federal income tax on income and capital gains distributed to shareholders. In order to qualify as a regulated investment company under Subchapter M of the Code, the fund must, among other things, (i) derive at least 90% of its gross income for each taxable year from dividends, interest, payments with respect to certain securities loans, gains from the sale or other disposition of stock, securities or foreign currencies, or other income (including gains from options, futures and forward contracts) derived with respect to its business of investing in such stock, securities or currencies, and net income derived from an interest in a qualified publicly traded partnership (as defined in Section 851(h) of the Code) (the "90% income test") and (ii) diversify its holdings so that, at the end of each quarter of each taxable year (subject to certain exceptions and special rules): (a) at least 50% of the value of the fund's total assets is represented by (1) cash and cash items, U.S. government securities, securities of other regulated investment companies, and (2) other securities, with such other securities limited, in respect of any one issuer, to an amount not greater than 5% of the value of the fund's total assets and to not more than 10% of the outstanding voting securities of such issuer and (b) not more than 25% of the value of the fund's total assets is invested in (1) the securities (other than U.S. government securities and securities of other regulated investment companies) of any one issuer, (2) the securities (other than securities of other regulated investment companies) of two or more issuers that the fund controls and that are engaged in the same, similar, or related trades or businesses, or (3) the securities of one or more qualified publicly traded partnerships.

For purposes of the 90% income test, the character of income earned by any entities in which the fund may invest that are not treated as corporations for U.S. federal income tax purposes (e.g., partnerships other than certain publicly traded partnerships or trusts that have not elected to be classified as corporations under the "check-the-box" regulations) will generally pass through to the fund. Consequently, in order to qualify as a regulated investment company, the fund may be required to limit its equity investments in such entities that earn fee income, rental income, insurance income or other non-qualifying income.

If the fund qualifies as a regulated investment company and properly distributes to its shareholders each taxable year an amount equal to or exceeding the sum of (i) 90% of its "investment company taxable income" as that term is defined in the Code (which includes, among other things, dividends, taxable interest, and the excess of any net short-term capital gains over net long-term capital losses, as reduced by certain deductible expenses) without regard to the deduction for dividends paid and (ii) 90% of the excess of its gross tax-exempt interest income, if any, over certain disallowed deductions, the fund generally will not be subject to U.S. federal income tax on any income of the fund, including "net capital gain" (the excess of net long-term capital gain over net short-term capital loss), distributed to shareholders. However, if the fund meets such distribution requirements, but chooses to retain some portion of its taxable income or gains, it generally will be subject to U.S. federal income tax at the applicable corporate rate on the amount retained. The fund may designate certain amounts retained as undistributed net capital gain in a notice to its shareholders, who (i) will be required to include in income for U.S. federal income tax purposes, as long-term capital gain, their proportionate shares of the undistributed amount so designated, (ii) will be entitled to credit their proportionate shares of the income tax paid by

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the fund on that undistributed amount against their federal income tax liabilities and to claim refunds to the extent such credits exceed their liabilities and (iii) will be entitled to increase their tax basis, for federal income tax purposes, in their shares by an amount equal to the excess of the amount of undistributed net capital gain included in their respective income over their respective income tax credits. The fund intends to distribute at least annually all or substantially all of its investment company taxable income (computed without regard to the dividends-paid deduction), net tax-exempt interest income, and net capital gain.

The tax treatment of certain ILS is not entirely clear. Certain of the fund's investments (including, potentially, certain ILS) may generate income that is not qualifying income for purposes of the 90% income test. The fund might generate more non-qualifying income than anticipated, might not be able to generate qualifying income in a particular taxable year at levels sufficient to meet the 90% income test, or might not be able to determine the percentage of qualifying income it has derived for a taxable year until after year-end. The fund may determine not to make an investment that it otherwise would have made, or may dispose of an investment it otherwise would have retained (potentially resulting in the recognition of taxable gain or loss, and potentially under disadvantageous circumstances), in an effort to meet the 90% income test.

If, for any taxable year, the fund does not qualify as a regulated investment company or does not satisfy the 90% distribution requirement, it will be treated as a U.S. corporation subject to U.S. federal income tax, thereby subjecting any income earned by the fund to tax at the corporate level and to a further tax at the shareholder level when such income is distributed. Under certain circumstances, the fund may be able to cure a failure to qualify as a regulated investment company, but in order to do so, the fund may incur significant fund-level taxes and may be forced to dispose of certain assets.

Under the Code, the fund will be subject to a nondeductible 4% U.S. federal excise tax on a portion of its undistributed ordinary income and capital gain net income if it fails to meet certain distribution requirements with respect to each calendar year and year ending October 31, respectively. The fund intends to make distributions in a timely manner and accordingly does not expect to be subject to the excise tax.

The fund expects to declare and pay dividends of net investment income and net realized capital gains annually. Dividends from income and/or capital gains may also be paid at such other times as may be necessary for the fund to avoid U.S. federal income or excise tax.

Unless a shareholder specifies otherwise, all distributions from the fund to that shareholder will be automatically reinvested in additional shares of the fund. For U.S. federal income tax purposes, all dividends generally are taxable whether a shareholder takes them in cash or they are reinvested in additional shares of the fund.

In general, assuming that the fund has sufficient earnings and profits, dividends from net investment income and net short-term capital gains are taxable either as ordinary income or, if certain conditions are met, as "qualified dividend income," taxable to individual and certain other noncorporate shareholders at reduced U.S. federal income tax rates.

In general, dividends may be reported by the fund as qualified dividend income if they are attributable to qualified dividend income received by the fund. Qualified dividend income generally means dividend income received from the fund's investments, if any, in common and preferred stock of U.S. companies and stock of certain qualified foreign corporations, provided that certain holding period and other requirements are met by both the fund and the shareholders. The fund is permitted to acquire stock of corporations, and it is therefore possible that a portion of the fund's distributions may be eligible for treatment as qualified dividend income.

A foreign corporation is treated as a qualified foreign corporation for this purpose if it is incorporated in a possession of the United States or it is eligible for the benefits of certain income tax treaties with the United States and meets certain additional requirements. Certain foreign corporations that are not otherwise qualified foreign corporations will be treated as qualified foreign corporations with respect to dividends paid by them if the stock with respect to which the dividends are paid is readily tradable on an established securities market in the United States. PFICs (including certain PFICs issuing ILS) are not qualified foreign corporations for this purpose. Dividends received by the fund from REITs generally are not expected to qualify for treatment as qualified dividend income.

A dividend that is attributable to qualified dividend income of the fund that is paid by the fund to a shareholder will not be taxable as qualified dividend income to such shareholder (1) if the dividend is received with respect to any share of the fund held for fewer than 61 days during the 121-day period beginning on the date which is 60 days before the date

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**Federal income tax matters**

on which such share became ex-dividend with respect to such dividend, (2) to the extent that the shareholder is under an obligation (whether pursuant to a short sale or otherwise) to make related payments with respect to positions in substantially similar or related property, or (3) if the shareholder elects to have the dividend treated as investment income for purposes of the limitation on deductibility of investment interest. The "ex-dividend" date is the date on which the owner of the share at the commencement of such date is entitled to receive the next issued dividend payment for such share even if the share is sold by the owner on that date or thereafter.

Distributions by the fund in excess of the fund's current and accumulated earnings and profits will be treated as a return of capital to the extent of (and in reduction of) the shareholder's tax basis in its shares and any such amount in excess of that basis will be treated as gain from the sale of shares, as discussed below.

Certain dividends received by the fund from U.S. corporations (generally, dividends received by the fund in respect of any share of stock (1) with a tax holding period of at least 46 days during the 91-day period beginning on the date that is 45 days before the date on which the stock becomes ex-dividend as to that dividend and (2) that is held in an unleveraged position) and distributed and appropriately so reported by the fund may be eligible for the 50% dividends-received deduction generally available to corporations under the Code. Certain preferred stock must have a holding period of at least 91 days during the 181-day period beginning on the date that is 90 days before the date on which the stock becomes ex-dividend as to that dividend in order to be eligible. Capital gain dividends distributed to the fund from other regulated investment companies are not eligible for the dividends-received deduction. The fund is permitted to acquire stock of U.S. domestic corporations, and it is therefore possible that a portion of the fund's distributions may qualify for this deduction. In order to qualify for the deduction, corporate shareholders must meet the minimum holding period requirement stated above with respect to their fund shares, taking into account any holding period reductions from certain hedging or other transactions or positions that diminish their risk of loss with respect to their fund shares, and, if they borrow to acquire or otherwise incur debt attributable to fund shares, they may be denied a portion of the dividends-received deduction with respect to those shares. Any corporate shareholder should consult its tax adviser regarding the possibility that its tax basis in its shares may be reduced, for U.S. federal income tax purposes, by reason of "extraordinary dividends" received with respect to the shares and, to the extent such basis would be reduced below zero, current recognition of income may be required.

Distributions from net capital gains, if any, that are reported as capital gain dividends by the fund are taxable as long-term capital gains for U.S. federal income tax purposes without regard to the length of time the shareholder has held shares of the fund. Capital gain dividends distributed by the fund to individual and certain other noncorporate shareholders will be taxed as long-term capital gains, which are generally taxable to noncorporate taxpayers at reduced U.S. federal income tax rates. A shareholder should also be aware that the benefits of the favorable tax rates applicable to long-term capital gains and qualified dividend income may be affected by the application of the alternative minimum tax.

The U.S. federal income tax status of all distributions will be reported to shareholders annually.

A 3.8% Medicare contribution tax generally applies to all or a portion of the net investment income of a shareholder who is an individual and not a nonresident alien for federal income tax purposes and who has adjusted gross income (subject to certain adjustments) that exceeds a threshold amount ($250,000 if married filing jointly or if considered a "surviving spouse" for federal income tax purposes, $125,000 if married filing separately, and $200,000 in other cases). This 3.8% tax also applies to all or a portion of the undistributed net investment income of certain shareholders that are estates and trusts. For these purposes, interest, dividends and certain capital gains (among other categories of income) are generally taken into account in computing a shareholder's net investment income.

Certain tax-exempt educational institutions will be subject to a 1.4% tax on net investment income. For these purposes, certain dividends and capital gain distributions, and certain gains from the disposition of fund shares (among other categories of income), are generally taken into account in computing a shareholder's net investment income.

Although dividends generally will be treated as distributed when paid, any dividend declared by the fund in October, November or December and payable to shareholders of record in such a month that is paid during the following January will be treated for U.S. federal income tax purposes as received by shareholders on December 31 of the calendar year in which it was declared. In addition, certain distributions made after the close of a taxable year of the fund may be "spilled back" and treated for certain purposes as paid by the fund during such taxable year. In such case, shareholders generally will be treated as having received such dividends in the taxable year in which the distributions were actually made. For

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purposes of calculating the amount of a regulated investment company's undistributed income and gain subject to the 4% excise tax described above, such "spilled back" dividends are treated as paid by the regulated investment company when they are actually paid.

For U.S. federal income tax purposes, the fund is permitted to carry forward indefinitely a net capital loss from any taxable year to offset its capital gains, if any, in years following the year of the loss. To the extent subsequent capital gains are offset by such losses, they will not result in U.S. federal income tax liability to the fund and may not be distributed as capital gains to shareholders. Generally, the fund may not carry forward any losses other than net capital losses. Under certain circumstances, the fund may elect to treat certain losses as though they were incurred on the first day of the taxable year immediately following the taxable year in which they were actually incurred.

Under Section 163(j) of the Code, a taxpayer's business interest expense is generally deductible to the extent of its business interest income plus certain other amounts. If the fund earns business interest income, it may report a portion of its dividends as "Section 163(j) interest dividends," which its shareholders may be able to treat as business interest income for purposes of Section 163(j) of the Code. The fund's "Section 163(j) interest dividend" for a tax year will be limited to the excess of its business interest income over the sum of its business interest expense and other deductions properly allocable to its business interest income. In general, the fund's shareholders may treat a distribution reported as a Section 163(j) interest dividend as interest income only to the extent the distribution exceeds the sum of the portions of the distribution reported as other types of tax-favored income. To be eligible to treat a Section 163(j) interest dividend as interest income, a shareholder may need to meet certain holding period requirements in respect of the shares and must not have hedged its position in the shares in certain ways.

At the time of an investor's purchase of fund shares, a portion of the purchase price may be attributable to unrealized appreciation in the fund's portfolio or to undistributed capital gains of the fund. Consequently, subsequent distributions by the fund with respect to these shares from such appreciation or gains may be taxable to such investor even if the net asset value of the investor's shares is, as a result of the distributions, reduced below the investor's cost for such shares and the distributions economically represent a return of a portion of the investment.

A repurchase by the fund of its shares from a shareholder generally is expected to be treated as a sale of the shares by the shareholder. If, however, the shareholder continues to own shares of the fund after the repurchase (including shares owned by attribution), some or all of the amounts received by a shareholder in the repurchase may be recharacterized either as a distribution of net investment income or as a capital gain dividend rather than as a sale of the shares. There is also a risk that shareholders who do not participate in the repurchase may be deemed to have received such a distribution as a result of their proportionate increase in the ownership of the fund. The fund will use its judgment in reporting repurchases as sales or deemed distributions, but the IRS may disagree with the fund's reporting. Shareholders should consult their own tax advisers with reference to their individual circumstances to determine whether any particular transaction in fund shares (including a repurchase) is properly treated as a sale for tax purposes, as the following discussion assumes, and to ascertain the tax treatment of any gains or losses recognized in such transactions.

In general, if fund shares are sold, the shareholder will recognize gain or loss equal to the difference between the amount realized on the sale and the shareholder's adjusted basis in the shares. Such gain or loss generally will be treated as long-term capital gain or loss if the shares were held for more than one year and otherwise generally will be treated as short-term capital gain or loss. Any loss recognized by a shareholder upon the sale or other disposition of shares with a tax holding period of six months or less will be treated as a long-term capital loss to the extent of any amounts treated as distributions to the shareholder of long-term capital gain with respect to such shares (including any amounts credited to the shareholder as undistributed capital gains).

The fund may report to the IRS the amount of proceeds that a shareholder receives from a repurchase of fund shares. The fund may also report the shareholder's basis in those shares and whether any gain or loss that the shareholder realizes on the repurchase is short-term or long-term gain or loss. If a shareholder has a different basis for different shares of the fund in the same account (e.g., if a shareholder purchased fund shares in the same account at different times for different prices, including as the result of reinvestment of dividends), the fund will calculate the basis of the shares using its default method unless the shareholder has properly elected to use a different method. The fund's default method for calculating basis will be the average basis method, under which the basis per share is reported as the average of the bases of all of the shareholder's fund shares in the account. A shareholder may elect, on an account-by-account basis, to use a method other than average basis by following procedures established by the fund. If such an election is made on or prior

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**Federal income tax matters**

to the date of the first repurchase of shares in the account and on or prior to the date that is one year after the shareholder receives notice of the fund's default method, the new election will generally apply as if the average basis method had never been in effect for such account. If such an election is not made on or prior to such dates, the shares in the account at the time of the election will generally retain their averaged bases. Shareholders should consult their tax advisers concerning the tax consequences of applying the average basis method or electing another method of basis calculation.

Losses on repurchases of shares may be disallowed under "wash sale" rules in the event of other investments in the fund (including those made pursuant to reinvestment of distributions) within a period of 61 days beginning 30 days before and ending 30 days after a repurchase or other disposition of shares. In such a case, the disallowed portion of any loss generally would be included in the U.S. federal tax basis of the shares acquired in the other investments.

Under Treasury regulations, if a shareholder recognizes a loss with respect to fund shares of $2 million or more for an individual shareholder, or $10 million or more for a corporate shareholder, in any single taxable year (or certain greater amounts over a combination of years), the shareholder must file with the IRS a disclosure statement on IRS Form 8886. Shareholders who own portfolio securities directly are in many cases excepted from this reporting requirement but, under current guidance, shareholders of regulated investment companies are not excepted. A shareholder who fails to make the required disclosure to the IRS may be subject to substantial penalties. The fact that a loss is reportable under these regulations does not affect the legal determination of whether or not the taxpayer's treatment of the loss is proper. Shareholders should consult with their tax advisers to determine the applicability of these regulations in light of their individual circumstances.

Shareholders that are exempt from U.S. federal income tax, such as retirement plans that are qualified under Section 401 of the Code, generally are not subject to U.S. federal income tax on fund dividends or distributions, or on repurchases of fund shares unless the fund shares are "debt-financed property" within the meaning of the Code. However, in the case of fund shares held through a non-qualified deferred compensation plan, fund dividends and distributions received by the plan and gains from repurchases of fund shares by the plan generally are taxable to the employer sponsoring such plan in accordance with the U.S. federal income tax laws that are generally applicable to shareholders receiving such dividends or distributions from regulated investment companies such as the fund.

A plan participant whose retirement plan invests in the fund, whether such plan is qualified or not, generally is not taxed on fund dividends or distributions received by the plan or on gains from repurchases of fund shares by the plan for U.S. federal income tax purposes. However, distributions to plan participants from a retirement plan account generally are taxable as ordinary income, and different tax treatment, including penalties on certain excess contributions and deferrals, certain pre-retirement and post-retirement distributions and certain prohibited transactions, is accorded to accounts maintained as qualified retirement plans. Shareholders should consult their tax advisers for more information.

Foreign exchange gains and losses realized by the fund in connection with certain transactions involving foreign currency-denominated debt securities, certain options and futures contracts relating to foreign currency, foreign currency forward contracts, foreign currencies, or payables or receivables denominated in a foreign currency are subject to Section 988 of the Code, which generally causes such gains and losses to be treated as ordinary income and losses and may affect the amount, timing and character of distributions to shareholders. Under Treasury regulations that may be promulgated in the future, any gains from such transactions that are not directly related to the fund's principal business of investing in stock or securities (or its options contracts or futures contracts with respect to stock or securities) may have to be limited in order to enable the fund to satisfy the 90% income test.

Certain investments made by the fund (including certain ILS) may be treated as equity in PFICs for federal income tax purposes. In general, a PFIC is a foreign corporation (i) that receives at least 75% of its annual gross income from passive sources (such as interest, dividends, certain rents and royalties, or capital gains) or (ii) where at least 50% of its assets (computed based on average fair market value) either produce or are held for the production of passive income. If the fund acquires any equity interest (under Treasury regulations that may be promulgated in the future, generally including not only stock but also an option to acquire stock such as is inherent in a convertible bond) in a PFIC, the fund could be subject to U.S. federal income tax and additional interest charges on "excess distributions" received from the PFIC or on gain from the sale of stock in the PFIC, even if all income or gain actually received by the fund is timely distributed to its shareholders. The fund would not be able to pass through to its shareholders any credit or deduction for such a tax. Gains from the sale of stock of PFICs may also be treated as ordinary income.

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A "qualified electing fund" election or a "mark to market" election may be available that would ameliorate these adverse tax consequences, but such elections could require the fund to recognize taxable income or gain (which would be subject to the distribution requirements applicable to regulated investment companies, as described above) without the concurrent receipt of cash. In order to satisfy the distribution requirements and avoid a tax on the fund, the fund may be required to liquidate portfolio securities that it might otherwise have continued to hold (potentially resulting in taxable gain or loss to the fund and potentially under disadvantageous circumstances), or the fund may be required to borrow cash. In order for the fund to make a qualified electing fund election with respect to a PFIC, the PFIC would have to agree to provide certain tax information to the fund on an annual basis, which it might not agree to do. If the fund makes a valid qualified electing fund election with respect to a PFIC, the fund will include in its income each year its pro rata share of the PFIC's net capital gains (as long-term capital gain) and other earnings and profits (as ordinary income), whether or not any amounts are distributed from the PFIC to the fund. If the qualified electing fund election is made, actual cash distributions by the PFIC paid out of earnings and profits already included in taxable income will not be taken into account in determining the taxable income of the fund. Any gain or loss recognized by the fund on a disposition of a PFIC for which the fund has made a qualified electing fund election will generally be treated as a capital gain or loss. If the fund makes a mark-to-market election with respect to a PFIC, the fund generally will include as ordinary income each taxable year the excess, if any, of the fair market value of its stock in the PFIC at the end of the year over its adjusted tax basis in that stock, and the fund generally will be allowed to take an ordinary loss in respect of the excess, if any, of its adjusted tax basis in that stock over the fair market value of that stock at the end of the year (but only to the extent of the net amount of income previously included by the fund as a result of the mark-to-market election). If the fund makes a mark-to-market election with respect to a PFIC, then any gain recognized by the fund on a disposition of the PFIC will generally be treated as ordinary income, and any loss so recognized will be treated as an ordinary loss to the extent of the net amount of income previously included by the fund as a result of the mark-to-market election. The fund may limit and/or manage its holdings in PFICs to limit its tax liability or maximize its after-tax return from these investments.

If a sufficient portion of the interests in a foreign issuer (including certain ILS issuers) is held or deemed held by the fund, independently or together with certain other U.S. persons, that issuer may be treated as a "CFC" with respect to the fund, in which case the fund will be required to take into account each year, as ordinary income, its share of certain portions of that issuer's income, whether or not such amounts are distributed. The fund may have to dispose of its portfolio securities (potentially resulting in the recognition of taxable gain or loss, and potentially under disadvantageous circumstances) to generate cash, or may have to borrow the cash, to meet its distribution requirements and avoid fund-level taxes. The fund may limit and/or manage its holdings in issuers that could be treated as controlled foreign corporations in order to limit its tax liability or maximize its after-tax return from these investments.

A different definition of CFC applies to non-U.S. entities treated as corporations for tax purposes that earn "related person insurance income" ("RPII"). RPII is, in general, any insurance income attributable to policies of insurance or reinsurance with respect to which the person (directly or indirectly) insured or reinsured is an RPII Shareholder (as defined in the following paragraph) of the non-U.S. entity or a related person (described below) to such an RPII Shareholder. In general, and subject to certain limitations, insurance income is income (including premium and investment income) attributable to the issuing of any insurance or reinsurance contract that would be taxed under subchapter L of the Code if the income were earned by a domestic insurance company.

For purposes only of taking into account RPII, and subject to the exceptions described below, a foreign entity in which the fund invests that is treated as a corporation will be treated as a CFC under the RPII rules (an "RPII CFC") if RPII Shareholders (defined below) collectively own, directly or indirectly through non-U.S. entities or constructively, 25% or more of the total combined voting power or value of such entity on any day during a taxable year. If an entity is an RPII CFC at any time during any taxable year, then a United States person who owns, directly or indirectly through non-U.S. entities, an equity interest in such entity on the last day of any such taxable year must include in its gross income for U.S. federal income tax purposes its allocable share of RPII of such entity for the entire taxable year, subject to certain modifications. An RPII Shareholder is a United States person who owns, directly or indirectly through non-U.S. entities, any amount (rather than 10% or more) of an RPII CFC's equity (an "RPII Shareholder"). Generally, for purposes of the RPII rules, a related person is someone who controls or is controlled by the RPII Shareholder or someone who is controlled by the same person or persons which control the RPII shareholder. For these purposes, control is measured by stock ownership of either more than 50% in value or more than 50% in voting power after applying certain constructive ownership rules.

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**Federal income tax matters**

The special RPII rules do not apply to a non-U.S. insurance company if (i) the direct and indirect insureds and persons related to such insureds, whether or not United States persons, are treated at all times during the taxable year as owning, directly or indirectly, less than 20% of the voting power and less than 20% of the value of the stock of the non-U.S. insurance company; (ii) the RPII of the non-U.S. insurance company, determined on a gross basis, is less than 20% of the company's gross insurance income for such taxable year; (iii) the non-U.S. insurance company elects to be taxed on its RPII as if it were engaged in a trade or business within the United States and waives all treaty benefits to which it would otherwise be entitled; or (iv) the non-U.S. insurance company elects to be treated as a domestic corporation for U.S. federal income tax purposes. If no exception applies, each United States person who owns, directly or indirectly through non-U.S. entities, shares of an RPII CFC on the last day of such entity's taxable year will be required to include in gross income for U.S. federal income tax purposes its allocable share of RPII for the entire taxable year, but only to the extent of its share of the RPII CFC's earnings and profits. The amount includible will be determined as if all such RPII were distributed proportionately only to such United States persons at that date. Amounts distributed out of previously taxed RPII would be excluded from the U.S. shareholder's income.

If the fund invests in certain pay-in-kind securities, zero coupon securities, deferred interest securities or, in general, any other securities with original issue discount (or with market discount if the fund elects to include market discount in income currently), the fund generally must accrue income on such investments for each taxable year, which generally will be prior to the receipt of the corresponding cash payments. However, the fund must distribute to its shareholders, at least annually, all or substantially all of its investment company taxable income (determined without regard to the deduction for dividends paid), including such accrued income, to qualify to be treated as a regulated investment company under the Code and avoid U.S. federal income and excise taxes. Therefore, the fund may have to dispose of its portfolio securities, potentially under disadvantageous circumstances, to generate cash, or may have to borrow the cash, to satisfy distribution requirements. Such a disposition of securities may potentially result in additional taxable gain or loss to the fund.

The fund may invest to a significant extent in, or hold, debt obligations that are below investment grade or that are unrated, including debt obligations of issuers not currently paying interest or that are in default. Investments in debt obligations that are at risk of or are in default present special tax issues for the fund. Federal income tax rules are not entirely clear about issues such as when the fund may cease to accrue interest, original issue discount or market discount, when and to what extent deductions may be taken for bad debts or worthless securities, how payments received on obligations in default should be allocated between principal and interest and whether certain exchanges of debt obligations in a workout context are taxable. These and other issues will be addressed by the fund, in the event it invests in or holds such securities, in order to seek to ensure that it distributes sufficient income to preserve its status as a regulated investment company and does not become subject to U.S. federal income or excise tax.

Options written or purchased and futures contracts entered into by the fund on certain securities, indices and foreign currencies, as well as certain forward foreign currency contracts, may cause the fund to recognize gains or losses from marking-to-market even though such options may not have lapsed or been closed out or exercised, or such futures or forward contracts may not have been performed or closed out. The tax rules applicable to these contracts may affect the characterization of some capital gains and losses realized by the fund as long-term or short-term. Certain options, futures and forward contracts relating to foreign currency may be subject to Section 988 of the Code, as described above, and accordingly may produce ordinary income or loss. Additionally, the fund may be required to recognize gain if an option, futures contract, forward contract, short sale or other transaction that is not subject to the mark-to-market rules is treated as a "constructive sale" of an "appreciated financial position" held by the fund under Section 1259 of the Code. Any net mark-to-market gains and/or gains from constructive sales may also have to be distributed to satisfy the distribution requirements referred to above even though the fund may receive no corresponding cash amounts, possibly requiring the disposition of portfolio securities or borrowing to obtain the necessary cash. Such a disposition of securities may potentially result in additional taxable gain or loss to the fund. Losses on certain options, futures or forward contracts and/or offsetting positions (portfolio securities or other positions with respect to which the fund's risk of loss is substantially diminished by one or more options, futures or forward contracts) may also be deferred under the tax straddle rules of the Code, which may also affect the characterization of capital gains or losses from straddle positions and certain successor positions as long-term or short-term. Certain tax elections may be available that would enable the fund to ameliorate

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some adverse effects of the tax rules described in this paragraph. The tax rules applicable to options, futures, forward contracts and straddles may affect the amount, timing and character of the fund's income and gains or losses and hence of its distributions to shareholders.

The fund may be subject to withholding and other taxes imposed by foreign countries, including taxes on interest, dividends and capital gains with respect to its investments in those countries. Any such taxes would, if imposed, reduce the yield on or return from those investments. Tax conventions between certain countries and the U.S. may reduce or eliminate such taxes in some cases. If more than 50% of the fund's total assets at the close of any taxable year consist of stock or securities of foreign corporations, the fund may elect to pass through to its shareholders their pro rata shares of qualified foreign taxes paid by the fund for that taxable year. If the fund so elects, shareholders would be required to include such taxes in their gross incomes (in addition to the dividends and distributions they actually receive), would treat such taxes as foreign taxes paid by them, and as described below may be entitled to a tax deduction for such taxes or a tax credit, subject to a holding period requirement and other limitations under the Code.

Qualified foreign taxes generally include taxes that would be treated as income taxes under U.S. tax regulations but do not include most other taxes, such as stamp taxes, securities transaction taxes, and similar taxes. If the fund qualifies to make, and makes, the election described above, shareholders may deduct their pro rata portion of qualified foreign taxes paid by the fund for that taxable year in computing their income subject to U.S. federal income taxation or, alternatively, claim them as credits, subject to applicable limitations under the Code, against their U.S. federal income taxes. Shareholders who do not itemize deductions for U.S. federal income tax purposes will not, however, be able to deduct their pro rata portion of qualified foreign taxes paid by the fund, although such shareholders will be required to include their shares of such taxes in gross income if the fund makes the election described above. No deduction for such taxes will be permitted to individuals in computing their alternative minimum tax liability.

If the fund makes this election and a shareholder chooses to take a credit for the foreign taxes deemed paid by such shareholder, the amount of the credit that may be claimed in any year may not exceed the same proportion of the U.S. tax against which such credit is taken that the shareholder's taxable income from foreign sources (but not in excess of the shareholder's entire taxable income) bears to his entire taxable income. For this purpose, long-term and short-term capital gains the fund realizes and distributes to shareholders will generally not be treated as income from foreign sources in their hands, nor will distributions of certain foreign currency gains subject to Section 988 of the Code or of any other income realized by the fund that is deemed, under the Code, to be U.S.-source income in the hands of the fund. This foreign tax credit limitation may also be applied separately to certain specific categories of foreign-source income and the related foreign taxes. As a result of these rules, which may have different effects depending upon each shareholder's particular tax situation, certain shareholders may not be able to claim a credit for the full amount of their proportionate share of the foreign taxes paid by the fund. Shareholders who are not liable for U.S. federal income taxes, including tax-exempt shareholders, will ordinarily not benefit from this election. If the fund does make the election, it will provide required tax information to shareholders. The fund generally may deduct any foreign taxes that are not passed through to its shareholders in computing its income available for distribution to shareholders to satisfy applicable tax distribution requirements. Under certain circumstances, if the fund receives a refund of foreign taxes paid in respect of a prior year, the value of the fund's shares could be reduced, or any foreign tax credits or deductions passed through to shareholders in respect of the fund's foreign taxes for the current year could be reduced.

The fund is required to withhold (as "backup withholding") a portion of reportable payments, including dividends, capital gain distributions and the proceeds of repurchases of fund shares, paid to shareholders who have not complied with certain IRS regulations. The backup withholding rate is currently 24%. In order to avoid this withholding requirement, shareholders, other than certain exempt entities, must generally certify that the Social Security Number or other Taxpayer Identification Number they provide is their correct number and that they are not currently subject to backup withholding, or that they are exempt from backup withholding. The fund may nevertheless be required to backup withhold if it receives notice from the IRS or a broker that the number provided is incorrect or backup withholding is applicable as a result of previous underreporting of interest or dividend income.

Investors other than U.S. persons may be subject to different U.S. federal income tax treatment, including a non-resident alien U.S. withholding tax at the rate of 30% or any lower applicable treaty rate on amounts treated as ordinary dividends from the fund (other than certain dividends reported by the fund as (i) interest-related dividends, to the extent such dividends are derived from the fund's "qualified net interest income," or (ii) short-term capital gain dividends, to the

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**Federal income tax matters**

extent such dividends are derived from the fund's "qualified short-term gain") or, in certain circumstances, unless an effective IRS Form W-8BEN or other authorized withholding certificate is on file, to backup withholding on certain other payments from the fund. "Qualified net interest income" is the fund's net income derived from U.S. source interest and original issue discount, subject to certain exceptions and limitations. "Qualified short-term gain" generally means the excess of the net short-term capital gain of the fund for the taxable year over its net long-term capital loss, if any. Backup withholding will not be applied to payments that have been subject to the 30% (or lower applicable treaty rate) withholding tax described in this paragraph.

Unless certain non-U.S. entities that hold fund shares comply with IRS requirements that will generally require them to report information regarding U.S. persons investing in, or holding accounts with, such entities, a 30% withholding tax may apply to fund distributions payable to such entities. A non-U.S. shareholder may be exempt from the withholding described in this paragraph under an applicable intergovernmental agreement between the U.S. and a foreign government, provided that the shareholder and the applicable foreign government comply with the terms of such agreement.

Shareholders should consult their own tax advisers on these matters and on state, local, foreign and other applicable tax laws.

If, as anticipated, the fund qualifies as a regulated investment company under the Code, it will not be required to pay any Massachusetts income, corporate excise or franchise taxes or any Delaware corporation income tax.

A state income (and possibly local income and/or intangible property) tax exemption is generally available to the extent the fund's distributions are derived from interest on (or, in the case of intangible property taxes, to the extent the value of its assets is attributable to) certain U.S. government obligations, provided, in some states, that certain thresholds for holdings of such obligations and/or reporting requirements are satisfied. The fund will not seek to satisfy any threshold or reporting requirements that may apply in particular taxing jurisdictions, although the fund may in its sole discretion provide relevant information to shareholders.

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**Net asset value**

The fund calculates a net asset value for its shares every day the New York Stock Exchange is open as of the close of regular trading (normally 4:00 p.m. Eastern time). On days when the New York Stock Exchange is closed for trading, including certain holidays listed in the statement of additional information, a net asset value is not calculated. The fund's most recent net asset value is available on the fund's website, amundi.com/us. For purposes of determining the net asset value of a common share, the value of the securities held by the fund plus any cash or other assets (including interest accrued but not yet received) minus all liabilities (including accrued expenses and indebtedness) is divided by the total number of shares outstanding at such time. Expenses, including the fees payable to the Adviser, are accrued daily.

The fund generally values debt securities and certain derivative instruments by using the prices supplied by independent third party pricing services. A pricing service may use market prices or quotations from one or more brokers or other sources, or may use a pricing matrix or other fair value methods or techniques to provide an estimated value of the security or instrument. A pricing matrix is a means of valuing a debt security on the basis of current market prices for other debt securities, historical trading patterns in the market for fixed income securities and/or other factors. Non-U.S. debt securities that are listed on an exchange will be valued at the bid price obtained from an independent third party pricing service.

Senior loans are valued at the mean between the last available bid and asked prices for one or more brokers or dealers as obtained from an independent third party pricing service. Senior loans for which no reliable price quotes are available will be valued by an independent third party pricing service through the use of a pricing matrix or other fair value methods or techniques. Event linked bonds are valued at the bid price obtained from an independent third party pricing service. Other ILS may be valued at the bid price obtained from an independent third party pricing service, or through a third party using a pricing matrix, insurance industry valuation models, or other fair value methods or techniques to provide an estimated value of the instrument.

The fund generally values its equity securities and certain derivative instruments that are traded on an exchange using the last sale price on the principal exchange on which they are traded. Equity securities that are not traded on the date of valuation, or securities for which no last sale prices are available, are valued at the mean between the last bid and asked prices or, if both last bid and asked prices are not available, at the last quoted bid price. Last sale, bid and asked prices are provided by independent third party pricing services. In the case of equity securities not traded on an exchange, prices are typically determined by independent third party pricing services approved by the Board of Trustees using a variety of techniques and methods. The fund may use a fair value model developed by an independent pricing service to value non-U.S. equity securities.

To the extent that the fund invests in shares of other funds that are not traded on an exchange, such shares are valued at their net asset values as provided by those funds. The prospectuses for those funds explain the circumstances under which those funds will use fair value pricing methods and the effects of using fair value pricing methods.

The valuations of securities traded in non-U.S. markets and certain fixed income securities will generally be determined as of the earlier closing time of the markets on which they primarily trade. When the fund holds securities or other assets that are denominated in a foreign currency, the fund will normally use the currency exchange rates as of 3:00 p.m. (Eastern time). Non-U.S. markets are open for trading on weekends and other days when the fund does not price its shares. Therefore, the value of the fund's shares may change on days when you will not be able to purchase or submit repurchase requests for fund shares.

Amundi US has been designated as the fund's valuation designee, with responsibility for fair valuation subject to oversight by the fund's Board of Trustees. When independent third party pricing services are unable to supply prices for an investment, or when prices or market quotations are considered by Amundi US to be unreliable, the value of that security may be determined using quotations from one or more broker-dealers. When such prices or quotations are not available, or when they are considered by Amundi US to be unreliable, Amundi US uses other fair value methods to value the fund's securities. Amundi US has been designated as the fund's valuation designee, with responsibility for fair valuation subject to oversight by the fund's Board of Trustees. The fund also may use fair value methods if it is determined that a significant event has occurred between the time at which a price is determined and the time at which the fund's net asset value is calculated. Because the fund may invest in securities rated below investment grade — some of which may be thinly-traded and for which prices may not be readily available or may be unreliable — Amundi US may use fair value

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**Net asset value**

methods more frequently with respect to the fund's investments than funds that primarily invest in securities that are more widely traded. Valuing securities using fair value methods may cause the net asset value of the fund's shares to differ from the net asset value that would be calculated only using market prices.

The prices used by Amundi US to value the fund's securities may differ from the amounts that would be realized if these securities were sold and these differences may be significant, particularly for securities that trade in relatively thin markets and/or markets that experience extreme volatility.

**Description of shares**

The fund is authorized to issue an unlimited number of common shares, without par value. All shares have equal rights to the payment of dividends and other distributions and the distribution of assets upon liquidation. Shares, when issued and outstanding, will be fully paid and non-assessable. Shareholders are entitled to share pro rata in the net assets of the fund available for distribution to common shareholders upon liquidation of the fund. Common shareholders are entitled to one vote for each share held.As of January 31, 2023, the following number of shares were outstanding:

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| | | | |
|:---|:---|:---|:---|
| **(1)** | **(2)** | **(3)** | **(4)** |
| **Title of class** | **Amount Authorized** | **Amount Held by the Fund for its own Account** | **Amount of Outstanding Shares Exclusive of** <br> **Amount shown under (3)**<br>|
| Common Shares | Unlimited | 0 | 10000 |

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As of January 31, 2023, Caceis Bank located at 89-91 Rue Gabriel Peri, 92120 Mountrouge, France, on behalf of its customers owned 100% of the outstanding shares of the fund. Caceis Bank is an affiliate of Credit Agricole S.A., the parent company of Amundi US, the fund's investment adviser.

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**Certain provisions of the agreement and declaration of trust and by-laws**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

The Declaration of Trust includes provisions that could have the effect of limiting the ability of other entities or persons to acquire control of the fund or to change the composition of its Board of Trustees and could have the effect of depriving shareholders of an opportunity to sell their shares at a premium over prevailing market prices by discouraging a third party from seeking to obtain control of the fund.

Although the fund is not required to hold annual meetings of its shareholders, shareholders holding at least a majority of the outstanding shares entitled to vote have the right, under certain circumstances, to call a meeting for any purpose requiring action by the shareholders as provided in the Declaration of Trust or in the By-Laws.

A Trustee may be removed from office only (i) by action of at least three-quarters (3/4) of the outstanding shares, or (ii) by the action of at least three-quarters (3/4) of the remaining Trustees, specifying the date when such removal shall become effective.

The Declaration of Trust provides for shareholder voting as required by the 1940 Act or other applicable laws but otherwise permits, consistent with Delaware law, actions by the Trustees without seeking the consent of shareholders. The Trustees may, without shareholder approval, where approval of shareholders is not otherwise required under the 1940 Act, merge or consolidate the fund into other entities, reorganize the fund into another trust or entity or a series or class of another entity, sell the assets of the fund to another entity, or terminate the fund.

The fund may be converted to an open-end investment company at any time by a vote of the outstanding shares. Conversion of the fund to an open-end investment company would require the favorable vote of the holders of at least three-quarters (3/4) of the fund's outstanding shares (or a majority of such shares if the action was previously approved by three-quarters (3/4) of the Trustees). Such a vote also would satisfy a separate requirement in the 1940 Act that the change be approved by the shareholders. Shareholders of an open-end investment company may require the company to redeem their shares of common stock at any time (except in certain circumstances as authorized by or under the 1940 Act) at their net asset value, or net asset value per share less such redemption charge, if any, as might be in effect at the time of a redemption. All such redemptions generally will be made in cash. If the fund is converted to an open-end investment company, it could be required to liquidate portfolio securities to meet requests for redemption.

Conversion to an open-end investment company would also require changes in certain of the fund's investment policies and restrictions, such as those relating to leverage and the purchase of illiquid securities.

The Declaration of Trust requires the favorable vote of the holders of at least three-quarters (3/4) of the outstanding shares of the fund to approve, adopt or authorize certain transactions with 5% or greater holders of a class of shares and their associates. For purposes of these provisions, a 5% or greater holder of a class or series of shares (a "Principal Shareholder") refers to any person who, whether directly or indirectly and whether alone or together with its affiliates and associates, beneficially owns 5% or more of the outstanding shares of any class or series of shares of beneficial interest of the fund. The 5% holder transactions subject to these special approval requirements are:

• the merger or consolidation of the fund or any subsidiary of the fund with or into any Principal Shareholder;

• the issuance of any securities of the fund to any Principal Shareholder for cash, other than pursuant to any automatic dividend reinvestment plan;

• the sale, lease or exchange of all or any substantial part of the assets of the fund to any Principal Shareholder, except assets having an aggregate fair market value of less than $1,000,000, aggregating for the purpose of such computation all assets sold, leased or exchanged in any series of similar transactions within a 12-month period; and

• the sale, lease or exchange to the fund or any subsidiary of the fund, in exchange for securities of the fund, of any assets of any Principal Shareholder, except assets having an aggregate fair market value of less than $1,000,000, aggregating for purposes of such computation all assets sold, leased or exchanged in any series of similar transactions within a 12-month period.

The Declaration of Trust provides a detailed process for the bringing of derivative or direct actions by shareholders in order to permit legitimate inquiries and claims while avoiding the time, expense, distraction, and other harm that can be caused to the fund or its shareholders as a result of spurious shareholder demands and derivative actions. Prior to bringing a derivative action, a demand by three unrelated shareholders must first be made on the fund's trustees. The Declaration of Trust details various information, certifications, undertakings and acknowledgements that must be included

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**Certain provisions of the agreement and declaration of trust and by-laws**

in the demand. Following receipt of the demand, the trustees have a period of 90 days, which may be extended by an additional 60 days, to consider the demand. If a majority of the trustees who are considered independent for the purposes of considering the demand determine that maintaining the suit would not be in the best interests of the fund, the trustees are required to reject the demand and the complaining shareholders may not proceed with the derivative action unless the shareholders are able to sustain the burden of proof to a court that the decision of the trustees not to pursue the requested action was not a good faith exercise of their business judgment on behalf of the fund. The Declaration of Trust further provides that shareholders owning shares representing at least 10% of the voting power of the affected fund must join in bringing the derivative action. If a demand is rejected, the complaining shareholders will be responsible for the costs and expenses (including attorneys' fees) incurred by the fund in connection with the consideration of the demand, if a court determines that the demand was made without reasonable cause or for an improper purpose. If a derivative action is brought in violation of the Declaration of Trust, the shareholders bringing the action may be responsible for the fund's costs, including attorneys' fees, if a court determines that the action was brought without reasonable cause or for an improper purpose.

The Declaration of Trust provides that no shareholder may bring a direct action claiming injury as a shareholder of the Trust, or any series or class thereof, where the matters alleged (if true) would give rise to a claim by the Trust or by the Trust on behalf of a series or class, unless the shareholder has suffered an injury distinct from that suffered by the shareholders of the Trust, or the series or class, generally. Under the Declaration of Trust, a shareholder bringing a direct claim must be a shareholder of the series or class with respect to which the direct action is brought at the time of the injury complained of, or have acquired the shares afterwards by operation of law from a person who was a shareholder at that time.

The Declaration of Trust also provides that shareholders have no rights, privileges, claims or remedies under any contract or agreement entered into by the Trust with any service provider or other agent or contract with the Trust, including, without limitation, any third party beneficiary rights, except as may be expressly provided in any service contract or agreement.

**Administrator, custodian, fund accounting agent, transfer agent and dividend disbursing agent**

Amundi Asset Management US, Inc. serves as the fund's administrator.

The fund's securities and cash are held under a custodian agreement with The Bank of New York Mellon ("BNY Mellon"), 225 Liberty Street, New York, New York 10286. BNY Mellon also serves as fund accounting agent. BNY Mellon Investment Servicing (US) Inc., Attention: 534427, 500 Ross Street 154-0520, Pittsburgh, PA 15262, is the fund's transfer agent and dividend disbursing agent for the fund's shares.

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**Privacy notice**

**March 2023**

*Please read this important Privacy Notice — about the privacy of our customers' personal information — from Amundi Asset Management US, Inc., Amundi Distributor US, Inc. and the Pioneer Funds (together "Amundi US").*

*This Privacy Notice and in the case of EU nationals, the Addendum to this Privacy Notice as amended from time to time, outlines our guidelines and practices for how we use and protect information about individual customers. Accordingly, references to this Privacy Notice shall include references to the Addendum (as applicable). We will send customers our Privacy Notice and Addendum each year.*

**Amundi US Respects Your Privacy**

Amundi US considers the privacy of our customers and former customers a matter of great importance. We respect your privacy and believe that any personal customer data we have should be treated with the highest regard for its confidentiality, whether it is financial information or other personal data.

Amundi US does not sell information about customers to any third party. Our company works hard to safeguard your personal information.

**Employee Behavior** Amundi US instructs its employees to keep your personal and financial information confidential and secure when they have access to it and when they see it as they communicate with you and process transactions on your or your financial intermediary's instructions. Employees are directed not to disclose information to unauthorized persons, either during their Amundi US employment or afterward.

**Vendor Contracts** When Amundi US hires vendors, such as mail houses or data processors, to assist in delivering services to clients, we require these vendors to commit contractually to keep the information they handle confidential and secure.

**Your Personal Information We Collect**

*We collect and record personal information that customers provide:*

• on forms and applications

• through electronic media

• through information collected from the web browser of your personal computer or laptop that allows our website to recognize your browser (commonly known as "cookies")

• by telephone

• in correspondence

*We also collect and record information from:*

• your financial advisor

• your transactions with us and our affiliates

• other firms, such as those from whom you transfer assets

• third parties, such as service providers that may notify us of your change of address

*Personal information may include:*

• names

• addresses

• telephone numbers

• Social Security numbers

• your investments in the Pioneer Funds, such as your account balance and transaction activity

**How Amundi US Uses and Discloses Personal Information**

*Amundi US gathers personal information to help us serve our customers and enhance other products and programs. For instance,*

• we may share information about your transactions with our affiliates in connection with providing services to your account;

• we may use it to send notices about fund products and services; or

• we may employ a mail house to survey all our customers about our products or the quality of our communications or services.

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**Privacy notice**

*All financial companies need to share customers' personal information to run their everyday business. Amundi US shares personal information with nonaffiliated third party service providers for our everyday business purposes, such as:*

• to assist in processing account transactions that you request or authorize; or

• to provide products or services that you request.

Amundi US does not share personal information with affiliated or nonaffiliated companies for marketing purposes. Amundi US does not use or disclose personal information about our customers except as described in this notice or as permitted by law. For example, we would disclose this information as needed to law enforcement and regulatory agencies, in connection with a subpoena or other legal process, as part of an audit or examination, and to trustees or custodians you have appointed. Disclosures made at your request include disclosures of personal information requested by your authorized intermediaries and employers sponsoring your investment plans.

Amundi US may share your personal information with other business entities in connection with the sale, assignment, merger or other transfer of all or a portion of Amundi US's business to such business entity. We will require any such successor business entity to honor the terms of this Privacy Notice.

**Security**

Amundi US maintains physical, electronic and administrative safeguards designed to protect customer information.

*We employ various forms of Internet security, such as*

• data encryption

• Secure Sockets Layer (SSL) and/or Transport Layer Security (TLS) protocols (encryption for network communications)

• anti-malware software

• user names and passwords

Please note, however, that while Amundi US has endeavored to create a secure and reliable website for users, the confidentiality of any communication or material transmitted to/from the website or via e-mail cannot be guaranteed.

If you access information through our website, amundi.com<u>/us</u>, you should not give your user name or passwords to anyone for any reason. Choosing to provide this information to a third party invites problems and puts the confidentiality of your personal information at risk.

**Changes to this Privacy Notice**

This Privacy Notice may be revised from time to time as we add new features and services, as laws change, and as industry privacy and security best practices evolve. We will notify you if we make material changes to the Privacy Notice. The most current version of the Privacy Notice is available on the website at https://www.amundi.com/usinvestors/Local-Content/Footer/Quick-Links/Privacy-Policy-Business-Continuity-and-Legal-Notices. You can check the date posted at the top to see when the Privacy Notice was last updated. Small changes or changes that do not significantly affect individual privacy interests may be made at any time and without prior notice.

**Contact**

If you have any questions about this Privacy Notice or if you have any questions or concerns about how Amundi US maintains the privacy of your customer information, please contact us at 800-225-6292 Monday through Friday, between the hours of 8:00 am and 7:00 pm Eastern Time.

**Privacy Notice – EU Addendum**

*Please read this important notice — about the privacy of our customers' personal information — from Amundi Asset Management US, Inc., Amundi Distributor US, Inc. and the Pioneer Funds (together "Amundi US"). This Addendum only applies to EU nationals and should be read together with the Privacy Notice. References to the Privacy Notice shall include references to this Addendum (as applicable).*

**How Amundi US Uses and Discloses Personal Information**

Amundi US may share your personal information under confidentiality agreements and any legally required data processing agreements with other companies that work with, or on behalf of, Amundi US to provide products and services, such as those who are providing email or mail solutions, providing cloud hosting services, analyzing data and

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usage of the website, or providing support and maintenance services for the website, as well as legal, regulatory, audit and other professional advisors. These companies may use your personal information to assist us in our operations or for our legitimate business interests. However, these companies do not have any independent right to share this information.

Amundi US will not sell, rent, license, or trade your personal information with third parties for their own direct marketing use unless we receive your express consent to do so. Unless you give us permission to do so, we will not share your personal information with third parties other than as specified in this Privacy Notice.

Amundi US will retain in accordance with its data retention policy your personal information only for as long as is reasonably necessary to achieve the purposes for which it is collected.

**Automatically Collected Information and Anonymous Information**

Each time you visit the website, Amundi US collects some information to improve the overall quality of your online experience.

An Internet Protocol ("IP") address is a number that automatically identifies the computer or device you have used to access the Internet. The IP address enables our server to send you the web pages that you want to visit, and it may disclose the server owned by your Internet Service Provider. Amundi US may use IP addresses to conduct website analyses and performance reviews and to administer the website, although it will not combine traffic data with user accounts.

Cookies are pieces of information that a website transfers to a user's computer for purposes of storing information about a user's preferences. Cookies in and of themselves do not personally identify users, although they do identify a user's computer. Many websites use cookies as a standard practice to provide useful features when a user visits the website and most web browsers are set up to accept cookies. Amundi US uses cookies to improve your online experience when visiting the website. You can set your browser to refuse cookies, but some portions of a website may not work properly if you refuse cookies. A session cookie is one that exists for the time period that your browser is open. A persistent cookie is one that is saved on your device/computer even after the browser is closed. Like many websites, we may use both session cookies and persistent cookies.

**Privacy Settings/Opt Out/Changes/Access**

You have the right to request that your personal information be removed from our database, changed or updated, and can do so by contacting us at one of the telephone numbers listed at the end of this Addendum. If requested, we will promptly verify and delete your account and you will no longer receive information or correspondence from Amundi US. Your removal from the mailing list or database will not remove records of past transactions or delete information stored in our data backups and archives where we are required to keep your data for legitimate business or legal requirements. Data on past transactions and data stored in backups and archives will be deleted in the normal course of our business. You have the right to access or, if required by applicable laws, receive a copy of your personal information held by contacting us at one of the telephone numbers below.

In addition, you have the right to make a complaint to the relevant supervisory authority in your home country if you have concerns about Amundi US's handling of your personal information.

Some of the recipients of your personal information as specified above may be located in countries (including the United States) that do not provide a level of data protection equivalent to that set forth by the European Union and some other jurisdictions. Amundi US will take appropriate steps to ensure that such recipients act in accordance with applicable law. To the extent that Amundi US transfers personal information to recipients which are located outside the European Union, Amundi US will implement appropriate contractual measures to secure such transfer, in compliance with applicable law. If you choose to access or use the Services, you consent to the transfer, use and disclosure of information in accordance with this Privacy Notice and subject to such applicable laws.

**Toll-free numbers:**

**Germany**0800 082 08 68

**Austria**0800 29 76 57

**Switzerland**0800 55 40 91

**Other countries (not toll-free):** +353 1 480 2200

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Notes

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Notes

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<br>**Pioneer ILS Bridge Fund**

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**PROSPECTUS**

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March 1, 2023

You should rely only on the information contained in or incorporated by reference into this prospectus. The fund has not authorized any other person to provide you with different information. If anyone provides you with different or inconsistent information, you should not rely on it. <br>All dealers that buy, sell or trade the fund's shares, whether or not participating in the offering, may be required to deliver a prospectus when acting on behalf of the Distributor.

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| ![](backcover_new2021.jpg)<br>| &nbsp;&nbsp;&nbsp; 31236-04-0323<br>©2022 Amundi Distributor US, Inc.<br> Underwriter of Pioneer mutual funds<br> Member SIPC<br>|

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