Form 485BPOS AMERICAN BEACON SELECT

As filed with the Securities and Exchange Commission on August 26, 2025

1933 Act File No. 333-88343

1940 Act File No. 811-09603

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-1A

AMERICAN BEACON SELECT FUNDS

(Exact Name of Registrant as Specified in Charter)

220 East Las Colinas Boulevard, Suite 1200

Irving, Texas 75039

(Address of Principal Executive Offices) (Zip Code)

Registrant’s Telephone Number, including Area Code: (817) 391-6100

Gregory J. Stumm, President

220 East Las Colinas Boulevard

Suite 1200

Irving, Texas 75039

(Name and Address of Agent for Service)

With copies to:

Stacy L. Fuller, Esq

Kathy  K. Ingber, Esq.

K&L Gates LLP

1601 K Street, NW

Washington, D.C. 20006-1600

It is proposed that this filing will become effective (check appropriate box)

If appropriate, check the following box:

PROSPECTUS

September 1, 2025

This Prospectus contains important information you should know about investing, including information about risks. Please read it before you invest and keep it for future reference.

Fund shares are not individually redeemable. Fund shares are listed on NYSE Arca, Inc. (the “Exchange”).

As with all exchange-traded funds, the Securities and Exchange Commission and the Commodity Futures Trading Commission have not approved or disapproved these securities or determined if this Prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

Table of Contents

Investment Objective

Fees and Expenses of the Fund

Example

Portfolio Turnover

Principal Investment Strategies

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Principal Risks

There is no assurance that the Fund will achieve its investment objective, and you could lose part or all of your investment in the Fund. The Fund is not designed for investors who need an assured level of current income and is intended to be a long-term investment. The Fund is not a complete investment program and may not be appropriate for all investors. Investors should carefully consider their own investment goals and risk tolerance before investing in the Fund. The principal risks of investing in the Fund listed below are presented in alphabetical order and not in order of importance or potential exposure. Among other matters, this presentation is intended to facilitate your ability to find particular risks and compare them with the risks of other funds. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears.  

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Fund Performance

Average annual total returns for periods ended December 31, 2024

Management

The Manager
The Fund has retained American Beacon Advisors, Inc. to serve as its Manager.

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Sub-Advisor
The Fund’s investment sub-advisor is Ionic Capital Management LLC.

Portfolio Managers

Purchase and Sale of Fund Shares

The Fund is an exchange-traded fund. Individual Fund shares may only be purchased and sold on a national securities exchange through a broker-dealer and may not be purchased or redeemed directly with the Fund. Shares of the Fund are listed for trading on NYSE Arca, Inc. (the “Exchange”). Shares may be purchased and redeemed from the Fund only in Creation Units of 25,000 shares, or multiples thereof, at NAV. As a practical matter, only institutions and large investors, such as market makers or other large broker-dealers, purchase or redeem Creation Units. Most investors will buy and sell shares of the Fund on the Exchange. Individual shares can be bought and sold throughout the trading day like other publicly traded securities through a broker-dealer on the Exchange. These transactions do not involve the Fund. The price of an individual Fund share is based on market prices, which may be different from its NAV. As a result, the Fund’s shares may trade at a price greater than the NAV (at a premium) or less than the NAV (at a discount). An investor may incur costs attributable to the difference between the highest price a buyer is willing to pay to purchase shares of the Fund (“bid”) and the lowest price a seller is willing to accept for shares of the Fund (“ask”) when buying or selling shares in the secondary market (the “bid-ask spread”). Most investors will incur customary brokerage commissions and charges when buying or selling shares of the Fund through a broker-dealer.

Recent information regarding the Fund, including its NAV, market price, premiums and discounts, and bid-ask spreads, is available on the Fund’s website at www.americanbeaconfunds.com/etfs/CPII.

Tax Information

Dividends, capital gains distributions, and other distributions, if any,  that you receive as a result of your investment in the Fund are subject to federal income tax and may also be subject to state and local income taxes, unless you are a tax-exempt entity or your account is  tax-deferred,  such as an individual retirement account (“IRA”) or a 401(k) plan (in which case you may be taxed later, upon the withdrawal of your investment from such account or plan).

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase shares of the Fund through a broker-dealer or other financial intermediary (such as a bank), the Fund and the Fund’s distributor, Foreside Financial Services, LLC, or the Manager may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your individual financial professional to recommend the Fund over another investment. Ask your individual financial professional or visit your financial intermediary’s website for more information.

Additional Information About the Fund

To help you better understand the Fund, this section provides a detailed discussion of the Fund’s investment policies, its principal strategies, its principal risks, and performance index. However, this Prospectus does not describe all of the Fund’s investment practices. Capitalized terms that are not otherwise defined are defined in Appendix A. For additional information, please see the Fund’s SAI, which is available at www.americanbeaconfunds.com or by contacting us via telephone at 1-833-471-3562, by U.S. mail at the Fund’s Distributor, Foreside Financial Services, LLC, 190 Middle Street, Suite 301, Portland, Maine 04101, or by e-mail at [email protected].

Additional Information About Investment Policies and Strategies

Investment Objective

The Fund’s investment objective is capital appreciation in elevated and rising inflationary environments.

The Fund’s investment objective is “non-fundamental,” which means that it may be changed by the Fund’s Board without the approval of Fund shareholders.

80% Investment Policy

The Fund has a non-fundamental policy to invest, under normal circumstances, at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in investments that provide protection against  U.S. inflation.  

If the Fund changes its 80% investment policy, a notice will be sent to shareholders at least 60 days in advance of the change and this prospectus will be supplemented.

Temporary Defensive Policy

The Fund may depart from its principal investment strategy by taking temporary defensive or interim positions in response to adverse market, economic, political, or other conditions. During these times, the Fund may not achieve its investment objective.

Additional Information About the Management of the Fund

The Fund has retained American Beacon Advisors, Inc. to serve as its Manager. The Manager may allocate the assets of the  Fund among different sub-advisors. The Manager provides or oversees the provision of all administrative, investment advisory and portfolio management services to the  Fund. The Manager:

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The assets of the Fund are currently allocated by the Manager to one sub-advisor, Ionic Capital Management LLC (“Ionic”).  Ionic has full discretion to purchase and sell securities for the Fund in accordance with the Fund’s objectives, policies, restrictions and more specific strategies provided by the Manager. The Manager oversees the sub-advisor but does not reassess individual security selections made by the sub-advisor for the Fund.

In the future, the Manager may allocate the Fund’s assets to a different sub-advisor, and/or to one or more additional sub-advisors. The  Fund operates in a manager-of-managers structure. The Fund and the Manager have received an exemptive order from the SEC that permits the Fund, subject to certain conditions and approval by the Board, to hire and replace sub-advisors, and materially amend agreements with sub-advisors, that are unaffiliated with the Manager without approval of the shareholders. In the future, the Fund and the Manager may rely on an SEC staff no-action letter, dated July 9, 2019, that would permit the Fund to expand its exemptive relief to hire and replace sub-advisors that are affiliated and unaffiliated with the Manager without shareholder approval, subject to approval by the Board and other conditions. The Manager has ultimate responsibility, subject to oversight by the Board, to oversee sub-advisors and recommend their hiring, termination and replacement. The SEC order also exempts the Fund from disclosing the advisory fees paid by the Fund to individual sub-advisors in a multi-manager fund in various documents filed with the SEC and provided to shareholders. In the future, the Fund may rely on the SEC staff no-action letter to expand its exemptive relief to individual sub-advisors that are affiliated with the Manager. Under that no-action letter, the fees payable to sub-advisors unaffiliated with or partially-owned by the Manager or its parent company would be aggregated, and fees payable to sub-advisors that are wholly-owned by the Manager or its parent company, if any, would be aggregated with fees payable to the Manager. Whenever a sub-advisor change is proposed in reliance on the order, in order for the change to be implemented, the Board, including a majority of its “non-interested” trustees, must approve the change. In addition, the Fund is required to provide shareholders with certain information regarding any new sub-advisor within 90 days of the hiring of any new sub-advisor.

Additional Information About Investments

This section provides more detailed information regarding certain of the Fund’s principal investment strategies as well as information regarding the Fund’s strategy with respect to investment of cash balances.

Cash Management
To gain market exposure on cash balances held in anticipation of liquidity needs or to reduce market exposure in anticipation of liquidity needs, the Fund may utilize the following investments:

Derivative Investments
Derivatives are financial instruments that have a value that depends upon, or is derived from, a reference asset, such as one or more underlying securities, commodities, options, futures, interest rates, credit rating, volatility measures, indices or currencies.  The Fund may invest in the following derivative instruments:

Fixed-Income Instruments
The Fund’s investments in, or exposure to, fixed-income instruments may include:

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Other Investment Companies
The  Fund, at times, may invest in shares of other investment companies. The Fund may invest in securities of an investment company advised by the Manager, with respect to which the Manager also receives a management fee. Investments in the securities of other investment companies may involve duplication of advisory fees and certain other expenses. By investing in another investment company, the Fund becomes a shareholder of that investment company. As a result, Fund shareholders indirectly will bear the Fund’s proportionate share of the fees and expenses paid by shareholders of the other investment company, in addition to the fees and expenses Fund shareholders directly bear in connection with the Fund’s own operations. These other fees and expenses, if applicable, are reflected as Acquired Fund Fees and Expenses and are included in the Fees and Expenses Table for the Fund in this Prospectus. Investment in other investment companies may involve the payment of substantial premiums above the value of such issuer’s portfolio securities.

Additional Information About Risks

The greatest risk of investing in an ETF is that its returns will fluctuate and you could lose money. The following section provides additional information regarding the Fund’s principal risk factors in light of its principal investment strategies. The principal risks of investing in the Fund listed below are presented in alphabetical order and not in order of importance or potential exposure. Among other matters, this presentation is intended to facilitate your ability to find particular risks and compare them with the risks of other funds. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears.

Asset Selection Risk
Assets selected for the Fund may not perform to expectations. Judgments about the attractiveness, value and potential performance of a particular asset class or individual security may be incorrect, and there is no guarantee that individual securities will perform as anticipated. Additionally, asset classes tend to go through cycles of outperformance and underperformance in comparison to each other and to the general securities markets. This could result in the Fund’s underperformance compared to other funds with similar investment objectives.

Counterparty Risk
The  Fund is subject to the risk that a party or participant to a transaction, such as a broker or derivative counterparty, will be unwilling or unable to satisfy its obligation to make timely principal, interest or settlement payments or to otherwise honor its obligations to the  Fund. As a result, the  Fund may not recover its investment or may only obtain a limited recovery, and any recovery may be delayed. Not all derivative transactions require a counterparty to post collateral, which may expose the  Fund to greater losses in the event of a default by a counterparty.

Cybersecurity and Operational Risk
Operational risks arising from, among other problems, human errors, systems and technology disruptions or failures, or cybersecurity incidents may negatively impact the Fund, its service providers, and third-party fund distribution platforms, including the ability of shareholders to transact in  the Fund’s shares, and result in financial losses. Cybersecurity incidents may allow an unauthorized party to gain access to Fund assets, shareholder data, or proprietary information, or cause the Fund or its service providers, as well as the securities trading venues and their service providers, to suffer data corruption or lose operational functionality. Cybersecurity incidents can result from deliberate attacks or unintentional events. A cybersecurity incident could, among other things, result in the loss or theft of shareholder data or funds, shareholders or service providers being unable to access electronic systems (also known as “denial of services”), loss or theft of proprietary information or financial data, the inability to process Fund transactions, interference with the Fund’s ability to calculate its NAV, impediments to trading, physical damage to a computer or network system, or remediation costs associated with system repairs. The occurrence of any of these problems could result in a loss of information, violations of applicable privacy and other laws, regulatory scrutiny, penalties, fines, reputational damage, additional compliance requirements, and other consequences, any of which could have a material adverse effect on the Fund or its shareholders. Market events also may occur at a pace that overloads current information technology and communication systems and processes of the Fund, its service providers or other market participants, such as third-party distribution platforms, which could impact the ability of the Fund to conduct operations or of shareholders to transact the Fund’s shares.

The Manager, through its monitoring and oversight of Fund service providers, endeavors to determine that service providers take appropriate precautions to avoid or mitigate risks that could lead to problems discussed above. While the Manager has established business continuity plans and risk management systems seeking to address these problems, there are inherent limitations in such plans and systems, and it is not possible for the Manager, other Fund service providers, or third-party fund distribution platforms to identify all of the operational risks that may affect the Fund or to develop processes and controls to completely eliminate or mitigate their occurrence or effects. Recent geopolitical tensions may increase the scale and sophistication of deliberate attacks, particularly those from nation-states or from entities with nation-state backing. The  Fund cannot control the cybersecurity plans and systems of its service providers, its counterparties, third-party fund distribution platforms,  or the issuers of securities in which the Fund invests. The issuers of the Fund’s investments

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are likely to be dependent on computers for their operations and require ready access to their data and the internet to conduct their business. Thus, cybersecurity incidents could also affect issuers of the Fund’s investments, leading to significant loss of value.

Derivatives Risk
Derivatives are financial instruments that have a value which depends upon, or is derived from, a reference asset, such as one or more underlying securities, pools of securities, options, futures, indexes or currencies. The Fund may use derivatives to enhance total return of its portfolio, to hedge against fluctuations in interest rates or currency exchange rates, to change the effective duration of its portfolio, or to manage certain investment risks or for exposure to a market as a substitute for the purchase or sale of the underlying currencies or securities. The Fund may also hold derivative instruments to obtain economic exposure to an issuer without directly holding its securities. Derivatives may involve significant risk. The use of derivative instruments may expose the Fund to additional risks that it would not be subject to if it invested directly in the securities or other instruments underlying those securities. Derivatives can be highly complex and their use within a management strategy can require specialized skills. There can be no assurance that any strategy used will succeed. If the sub-advisor incorrectly forecasts stock market values, or the direction of interest rates or currency exchange rates in utilizing a specific derivatives strategy for the Fund, the Fund could lose money. In addition, leverage embedded in a derivative instrument can expose the Fund to greater risk and increase its costs. Gains or losses in the value of a derivative instrument may be magnified and be much greater than the derivative’s original cost (generally the initial margin deposit). There may also be material and prolonged deviations between the theoretical value and realizable value of a derivative.   As a result,  the Fund could lose more than the amount it invests. The use of derivatives may also increase any adverse effects resulting from the underperformance of strategies, asset classes and market exposures to which the Fund has allocated its assets. Derivatives may at times be illiquid and may be more volatile than other types of investments. The  Fund may not be able to close out or sell a derivative position at a particular time or at an anticipated price. Certain derivatives may also be difficult to value, and valuation may be more difficult in times of market turmoil.

Derivative investments can increase portfolio turnover and transaction costs. Derivatives also are subject to  counterparty risk  and credit risk. As a result, the Fund may not recover its investment or may only obtain a limited recovery, and any recovery may be delayed. Not all derivative transactions require a counterparty to post collateral, which may expose the Fund to greater losses in the event of a default by a counterparty. Derivatives transactions requiring the  Fund to post collateral may expose  the Fund  to greater losses in the event of a default by a counterparty. Certain derivatives require  the Fund to post margin to secure its future obligation; if the Fund has insufficient cash, it may have to sell investments from its portfolio to meet daily variation margin requirements at a time when it may be disadvantageous to do so. The Fund’s use of derivatives also may create financial leverage, which may result in losses that exceed the amount originally invested and accelerate the rate of losses. There may be imperfect correlation between the behavior of a derivative and that of the reference instrument underlying the derivative. An abrupt change in the price of a reference instrument could render a derivative worthless. Derivatives may involve risks different from, and possibly greater than, the risks associated with investing directly in the reference instrument. The  Fund may buy or sell derivatives not traded on organized exchanges or enter into transactions that are not cleared through clearing organizations. These types of transactions may be subject to heightened  counterparty, liquidity and valuation risks.  Suitable derivatives may not be available in all circumstances, and there can be no assurance that the Fund will use derivatives to reduce exposure to other risks when that might have been beneficial. Because the markets for certain derivative instruments (including markets located in foreign countries) are relatively new and still developing, suitable derivatives transactions may not be available in all circumstances for risk management or other purposes. Upon the expiration of a particular contract, the sub-advisor may wish to retain the Fund’s position in the derivative instrument by entering into a similar contract, but may be unable to do so if the counterparty to the original contract is unwilling to enter into the new contract and no other suitable counterparty can be found. Although the Fund may attempt to hedge against certain risks, the hedging instruments may not perform as expected and could produce losses. Hedging instruments may also reduce or eliminate gains that may otherwise have been available had the Fund not used the hedging instruments. The Fund may not hedge certain risks in particular situations, even if suitable instruments are available.

The Fund’s ability to use derivatives may also be limited by certain regulatory and tax considerations. For example, the CFTC and the designated contract markets have established position limits for certain futures and options contracts, which may restrict the ability of the Fund, or the Manager or sub-advisor entering trades on the Fund’s behalf, to make certain trading decisions. Rule 18f-4 places limits on the use of derivatives by registered investment companies, such as the Fund. A fund that relies on Rule 18f-4 is required to comply with limits on the amount of leverage-related risk that the fund may obtain, and may also be required to adopt and implement a derivatives risk management program and designate a derivatives risk manager or adopt policies and procedures designed to manage a fund’s derivatives risks.

Ongoing changes to the regulation of derivatives markets and changes in the regulation of funds using derivative instruments could limit the Fund’s ability to pursue its investment strategies. New regulation may make derivatives more costly, may limit their availability, may disrupt markets, or may otherwise adversely affect their value or performance. Recent rule changes provide for central clearing of derivatives that in the past were traded exclusively over-the-counter and may increase costs and margin requirements, but are expected to reduce certain counterparty risks. The Fund may be subject to the risks associated with investments in derivatives, including but not limited to the following:

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Exchange-Traded Funds (“ETFs”) Risk
As an ETF, the  Fund is subject to the following risks:

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Hedging Risk
The  Fund may enter into hedging transactions with the intention of reducing or controlling risk. It is possible that hedging strategies will not be effective in controlling risk, due to unexpected non-correlation (or even positive correlation) between the hedging instrument and the position being hedged, increasing, rather than reducing, both risk and losses. To the extent that the  Fund enters into hedging transactions, the hedges will not be static but rather will need to be continually adjusted based on the  sub-advisor’s assessment of market conditions, as well as the expected degree of non-correlation between the hedges and the portfolio being hedged. The success of the  Fund’s hedging strategies will depend on the  sub-advisor’s ability to implement such strategies efficiently and cost-effectively, as well as on the accuracy of the  sub-advisor’s judgments concerning the hedging positions to be acquired by the  Fund. A counterparty to a hedging transaction may be unable to honor its financial obligation to the  Fund. In addition, the  sub-advisor may be unable to close the transaction at the time it would like or at the price it believes the security is currently worth. The Fund may not, in general, attempt to hedge all market or other risks inherent in the  Fund’s investments, and may hedge certain risks only partially, if at all. Certain risks, either in respect of particular investments or in respect of the  Fund’s overall portfolio, may not be hedged, particularly if doing so is economically unattractive. As a result, various directional market risks may remain unhedged. Gains or losses from positions in hedging instruments may be much greater than the instrument’s original cost. If the  Fund uses a hedging instrument at the wrong time or judges the market conditions incorrectly, or the hedged instrument does not correlate to the risk sought to be hedged, the hedge might be unsuccessful. The use of hedges may fail to mitigate risks, reduce the  Fund’s return, or create a loss. In addition, hedges, even when successful in mitigating risk, may not prevent the  Fund from experiencing losses on its investments. Hedging instruments may also reduce or eliminate gains that may otherwise have been available had the  Fund not used the hedging instruments. When hedging is combined with leverage,  the Fund risks losses that are increased by the degree of leverage used.

High Portfolio Turnover Risk
Portfolio turnover is a measure of the  Fund’s trading activity over a one-year period. A portfolio turnover rate of 100% would indicate that the  Fund sold and replaced the entire value of its securities holdings during the period. The  Fund may engage in active and frequent trading and may have a high portfolio turnover rate, which could increase the  Fund’s transaction costs because of increased broker commissions resulting from such transactions. These costs are not reflected in the  Fund’s annual operating expenses or in the expense example, but they can have a negative impact on performance and generate higher capital gain distributions to shareholders than if the  Fund had a low portfolio turnover rate. Frequent trading by the  Fund could also result in increased realized net capital gains, distributions of which are taxable to the  Fund’s shareholders when Fund shares are held in a taxable account (including net short-term capital gain distributions, which are taxable to them as ordinary income).

Inflation Protection Risk
Although the Fund seeks to generate positive returns during periods of rising inflation and inflation expectations, the sub-advisor’s investment strategy may fail to achieve this result. If the Fund’s investments do not keep pace with inflation, the real (or inflation-adjusted) value of its assets could decline as their purchasing power decreases. Additionally, due to the Fund’s principal investment strategies, its performance may decline during environments with deflation. Inflation rates may change frequently and significantly as a result of various factors, including unexpected shifts in the domestic or global economy and changes in monetary or economic policies, or expectations that these policies may change.

Interest Rate Risk
Investments in fixed-income securities or derivatives that are influenced by interest rates are subject to interest rate risk. Generally, the value of investments with interest rate risk, such as fixed-income securities or derivatives, will move in the opposite direction as movements in interest rates.   For example, the value of the Fund’s fixed-income investments or derivatives typically will fall when interest rates rise. Factors including central bank monetary policy, rising inflation rates, and changes in general economic conditions may cause interest rates to rise, which could cause the value of the Fund’s investments to decline.    Interest rate increases, including significant or rapid increases, may result in a decline in the value of bonds or derivatives  held by the Fund, make issuers less willing or able to make principal and interest payments on fixed-income investments when due, lead to heightened volatility in the fixed-income markets and adversely affect the liquidity of certain fixed-income investments, any of which may result in substantial losses to the Fund. When interest rates decline, issuers may prepay higher-yielding securities held by the Fund, resulting in the Fund reinvesting in securities with lower yields, which may cause a decline in its income.    The prices of fixed-income securities or derivatives  are also affected by their durations. Fixed-income securities with longer durations tend to be more sensitive to changes in interest rates, usually making them more volatile than fixed-income securities with shorter durations. Rising interest rates may cause the value of the Fund’s investments in investments with longer durations and terms to maturity to decline, which may adversely affect the value of the Fund. For example, if a bond has a duration of two years, a 1% increase in interest rates could be expected to result in a 2% decrease in the value of the bond.   Yields of fixed-income securities will fluctuate over time. In addition, decreases in fixed-income dealer market-making capacity may lead to lower trading volume, heightened volatility, wider bid-ask spreads, and less transparent pricing in certain fixed-income markets.  
The Fund may not be able to hedge against changes in interest rates or may choose not to do so for cost or other reasons. In addition, any hedges may not work as intended.

Investment Risk
An investment in the  Fund is not a deposit with a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The  Fund should not be relied upon as a complete investment program. The market price of the  Fund fluctuates, which means that when you sell your shares of the  Fund, they could be worth less than what you paid for them. Therefore, you may lose money by investing in the  Fund.

Leverage Risk
The Fund’s use of derivatives may have the economic effect of financial leverage. Financial leverage magnifies the exposure to the movement in prices of an asset or class of assets underlying a derivative instrument and may result in increased volatility, which means that the Fund will have the potential for greater losses than if the Fund does not use the derivative instruments that have a leveraging effect. Leverage may result in losses that exceed the amount originally invested and may accelerate the rate of losses. Leverage tends to magnify, sometimes significantly, the effect of any increase or decrease in the Fund’s exposure to an asset or class of assets and may cause the Fund’s NAV per share to be volatile. The use of leverage may cause the Fund to liquidate portfolio

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positions when it may not be advantageous to do so to satisfy its obligations or to meet any required asset segregation requirements. In addition, the costs that the Fund pays to engage in these practices are additional costs borne by the Fund and could reduce or eliminate any net investment profits. There can be no assurance that the Fund’s use of leverage will be successful. The Fund may experience leverage risk in connection with investments in derivatives because its investments in derivatives may be purchased with a fraction of the assets that would be needed to purchase the securities directly, so that the remainder of the assets may be invested in other investments. Such investments may have the effect of leveraging the Fund because the Fund may experience gains or losses not only on its investments in derivatives, but also on the investments purchased with the remainder of the assets. If the value of the Fund’s investments in derivatives is increasing, this could be offset by declining values of the Fund’s other investments. Conversely, it is possible that the rise in the value of the Fund’s non-derivative investments could be offset by a decline in the value of the Fund’s investments in derivatives. In either scenario, the Fund may experience losses. In a market where the value of the Fund’s investments in derivatives is declining and the value of its other investments is declining, the Fund may experience substantial losses.

Liquidity Risk
The  Fund is susceptible to the risk that certain investments held by the Fund may have limited marketability, be subject to restrictions on sale, be difficult or impossible to purchase or sell at favorable times or prices or become less liquid in response to market developments or adverse credit events that may affect issuers or guarantors of a security. Market prices for such instruments may be volatile. During periods of substantial market volatility, an investment or even an entire market segment may become illiquid, sometimes abruptly, which can adversely affect the Fund’s ability to limit losses. When there is little or no active trading market for specific types of securities, it can become more difficult to purchase or sell the securities at or near their perceived value. As a result, the Fund may have to lower the price on certain securities that it is trying to sell, sell other securities instead or forgo an investment opportunity, any of which could have a negative effect on Fund management or performance. An inability to sell a portfolio position can adversely affect the Fund’s NAV or prevent the Fund from being able to take advantage of other investment opportunities. The Fund could lose money if it is unable to dispose of an investment at a time that is most beneficial to the Fund. Judgment plays a greater role in pricing illiquid investments than in investments with more active markets.

Market Risk
The  Fund is subject to the risk that the securities markets will move down, sometimes rapidly and unpredictably, based on overall economic conditions and other factors, which may negatively affect the Fund’s performance. Equity securities generally have greater price volatility than fixed-income securities, although under certain market conditions fixed-income securities may have comparable or greater price volatility. During a general downturn in the securities markets, multiple asset classes may decline in value simultaneously. In some cases, traditional market participants have been less willing to make a market in some types of debt instruments, which has affected the liquidity of those instruments. During times of market turmoil, investors tend to look to the safety of securities issued or backed by the U.S. Treasury, causing the prices of these securities to rise and the yields to decline. Reduced liquidity in fixed-income and credit markets may negatively affect many issuers worldwide. Prices in many financial markets have increased significantly over the last 10-15 years, but there have also been periods of adverse market and financial developments and cyclical change during that timeframe, which have resulted in unusually high levels of volatility in domestic and foreign financial markets that has caused losses for investors and may occur again in the future, particularly if markets enter a period of uncertainty or economic weakness. Periods of unusually high volatility in the financial markets and restrictive credit conditions, sometimes limited to a particular sector or geographic region, continue to recur. The value of a security may decline due to adverse issuer-specific conditions or general market conditions unrelated to a particular issuer, such as real or perceived adverse geopolitical, regulatory, market, economic or other developments that may cause broad changes in market value, changes in the general outlook for corporate earnings, changes in interest, currency or inflation rates, lack of liquidity in the markets, public perceptions concerning these developments or adverse market sentiment generally. The value of a security may also decline due to factors that affect a particular industry or industries, such as tariffs, labor shortages or increased production costs and competitive conditions within an industry. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets. Changes in the financial condition of a single issuer or market segment also can impact the market as a whole.

Geopolitical and other events, including war, terrorism, economic uncertainty, trade disputes, pandemics, public health crises, natural disasters, cybersecurity incidents, and related events have led, and in the future may continue to lead, to instability in world economies and markets generally and reduced liquidity, which may adversely affect the value of your investment. Such market disruptions have caused, and may continue to cause, broad changes in market value, negative public perceptions concerning these developments, a reduction in the willingness and ability of some lenders to extend credit, difficulties for some borrowers in obtaining financing on attractive terms, if at all, and adverse investor sentiment or publicity. Changes in value may be temporary or may last for extended periods. Adverse market events may also lead to increased shareholder redemptions, which could cause the Fund to sell investments at an inopportune time to meet redemption requests by shareholders and may increase the Fund’s portfolio turnover, which could increase the costs that the Fund incurs and lower the Fund’s performance. Even when securities markets perform well, there is no assurance that the investments held by the Fund will increase in value along with the broader market.  

Policy changes by the U.S. government and/or Federal Reserve and economic and political changes within the U.S. and abroad, such as inflation, changes in interest rates, recessions, changes in the  U.S. presidential administration and Congress, the U.S. government’s inability at times to agree on a long-term budget and deficit reduction plan, the threat or occurrence of a federal government shutdown and threats or the occurrence of a failure to increase the federal government’s debt limit, which could result in a default on the government’s obligations, may affect investor and consumer confidence and may adversely impact financial markets and the broader economy, perhaps suddenly and to a significant degree. The severity or duration of adverse economic conditions may also be affected by policy changes made by governments or quasi-governmental organizations. Global economies and financial markets are becoming increasingly interconnected, which increases the possibility of many markets being affected by events in a single country or events affecting a single or small number of issuers.

Markets and market participants are increasingly reliant upon both publicly available and proprietary information data systems. Data imprecision, software or other technology malfunctions, programming inaccuracies, unauthorized use or access, and similar circumstances may impair the performance of these systems and may have an adverse impact upon a single issuer, a group of issuers, or the market at large. In certain cases, an exchange or market may close or issue trading halts on either specific securities or even the entire market, which may result in the Fund being, among other things, unable to buy or sell certain securities or financial instruments or accurately price its investments. These fluctuations in securities prices could be a sustained trend or a drastic movement. The financial markets generally move in cycles, with periods of rising prices followed by periods of declining prices. The value of your investment may reflect these fluctuations.

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Non-Diversification Risk
Since the Fund is non-diversified, it may invest a high percentage of its assets in a limited number of issuers. When the  Fund invests in a relatively small number of issuers, it may be more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Some of those issuers also may present substantial credit or other risks. When the  Fund is non-diversified, its NAV and total return may also fluctuate more or be subject to declines in weaker markets than a diversified mutual fund. Investments in securities of a limited number of issuers exposes the  Fund to greater market risk, price volatility and potential losses than if assets were diversified among the securities of a greater number of issuers. Because the Fund may have a focused portfolio of fewer companies than other funds, including both diversified and non-diversified funds, the increase or decrease of the value of a single investment may have a greater impact on the Fund’s NAV and total return when compared to other funds.

Other Investment Companies Risk
To the extent that the  Fund invests in shares of other registered investment companies, the  Fund will indirectly bear the fees and expenses, including, for example, advisory and administrative fees, charged by those investment companies in addition to the  Fund’s direct fees and expenses. If the Fund invests in other investment companies, the Fund may receive distributions of taxable gains from portfolio transactions by that investment company and may recognize taxable gains from transactions in shares of that investment company, which could be taxable to the Fund’s shareholders when distributed to them. The  Fund must rely on the investment company in which it invests to achieve its investment objective. If the investment company fails to achieve its investment objective, the value of the  Fund’s investment may decline, adversely affecting the  Fund’s performance. To the extent the  Fund invests in other investment companies that invest in equity securities, fixed-income securities and/or foreign securities, or that track an index, the  Fund is subject to the risks associated with the underlying investments held by the investment company or the index fluctuations to which the investment company is subject.   The  Fund will be subject to the risks associated with investments in those companies, including but not limited to the following:

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Risk Management
The Fund’s sub-advisor undertakes certain analyses with the intention of identifying particular types of risks and reducing the  Fund’s exposure to them. However, risk is an essential part of investing, and the degree of return an investor might expect is often tied to the degree of risk the investor is willing to accept. By its very nature, risk involves exposure to the possibility of adverse events. Accordingly, no risk management program can eliminate the  Fund’s exposure to such events; at best, it can only reduce the possibility that the  Fund will be affected by adverse events, and especially those risks that are not intrinsic to the  Fund’s investment program. While the prospectus describes material risk factors associated with the  Fund’s investment program, there is no assurance that, as a particular situation unfolds in the markets, the portfolio managers will be able to identify all of the risks that might affect the  Fund, rate their probability or potential magnitude correctly, or take appropriate measures to reduce the  Fund’s exposure to them. Measures taken with the intention of decreasing exposure to identified risks might have the unintended effect of increasing exposure to other risks.

Segregated Assets Risk
In connection with certain transactions that may give rise to future payment obligations, the  Fund may be required to maintain a segregated amount of, or otherwise earmark, cash or liquid securities to cover the position. Segregated or earmarked securities generally cannot be sold while the position or transaction they are covering is outstanding, unless they are replaced with other securities of equal value. There is the possibility that the segregation or earmarking of a large percentage of the  Fund’s assets may, in some circumstances, limit the  Fund’s ability to take advantage of investment opportunities or meet redemption requests. In addition, the need to segregate cash or other liquid securities could limit the  Fund’s ability to pursue other opportunities as they arise.

Small Fund Risk
Like other smaller funds, large inflows and outflows may impact the Fund’s market exposure for limited periods of time. This impact may be positive or negative, depending on the direction of market movement during the affected period. Investment positions may also have a disproportionate impact, negative or positive, on performance, and Fund performance may be more volatile than that of a larger fund. The Fund’s shareholder fees and annual fund operating expenses also may be higher than those of a fund that has attracted sufficient assets to achieve investment and trading efficiencies. Shareholders of the Fund may incur higher expenses if the Fund fails to attract sufficient assets to realize economies of scale. Investors in the Fund bear the risk that, without sufficient assets, the Fund may not be successful in implementing its investment strategies or may not employ a successful investment strategies. If the Fund does not attract sufficient assets, the Fund may not be viable, and any resulting liquidation could create elevated and negative transaction costs for the Fund and adverse federal income tax consequences for investors, as well as causing shareholders to incur expenses of liquidation.

Treasury Inflation-Protected Securities Risk
U.S. Treasury inflation-protected securities (“TIPS”) are debt instruments issued by the United States Department of the Treasury. The principal of TIPS increases with inflation and decreases with deflation, as measured by the CPI-U. When TIPS mature, investors are paid the adjusted principal or original principal, whichever is greater. TIPS tend to react to changes in real interest rates. In general, the price of an inflation-protected debt security falls when real interest rates rise, and rises when real interest rates fall. TIPS generally pay a lower nominal interest rate than a comparable non-inflation-indexed bond. Interest payments on TIPS are unpredictable and will fluctuate as the principal and corresponding interest payments are adjusted for inflation. There can be no assurance that the CPI-U will accurately measure the real rate of inflation in the prices of goods and services. Any increases in the principal amount of TIPS will be considered taxable ordinary income, even though the Fund or ETFs in which the Fund invests will not receive the principal until maturity. As a result, the Fund may make income distributions to shareholders that exceed the cash it receives. In addition, TIPS are subject to interest rate risk.

U.S. Treasury Obligations Risk
Securities issued or guaranteed by the U.S. Treasury are backed by the “full faith and credit” of the United States; however, the U.S. government guarantees the securities only as to the stated interest rate and face value at maturity, not its current market price and the market prices of such securities may fluctuate. The market value of U.S. Treasury obligations may vary due to fluctuations in interest rates. In addition, changes to the financial condition or credit rating of the  U.S. government may cause the market value of the Fund’s investments in obligations issued by the U.S. Treasury to decline. Certain political events in the U.S., such as a prolonged government shutdown, the U.S. government’s inability at times to agree on a long-term budget and deficit reduction plan, and threats not to increase the federal government’s debt limit, which may result in a potential default on the national debt, may also cause investors to lose confidence in the U.S. government and may cause the value of U.S. Treasury obligations to decline. Because U.S. Treasury securities trade actively outside the United States, their prices may also rise and fall as changes in global economic conditions affect the demand for these securities. The total public debt of the U.S. as a percent of GDP has grown rapidly in recent years. Although high debt levels do not necessarily indicate or cause economic problems, they have the potential to create systemic risks if sound debt management practices are not implemented.  

Valuation Risk
This is the risk that a security may be valued at a price different from the price at which it can be sold. This risk may be especially pronounced for investments that may be illiquid or may become illiquid and for securities that trade in relatively thin markets and/or markets that experience extreme volatility. The valuation of the Fund’s investments in an accurate and timely manner may be impacted by technological issues and/or errors by third party service providers, such as pricing services or accounting agents. If market conditions make it difficult to value certain investments, SEC rules and applicable accounting protocols may require the  valuation of these investments using more subjective methods, such as fair-value methodologies. Using fair value methodologies to price investments may result in a value that is different from an investment’s most recent closing price and from the prices used by others for the same investment. Investors who purchase or redeem Fund shares on days when the  Fund is holding fair-valued securities may receive fewer or more shares, or lower or higher

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redemption proceeds, than they would have received if the securities had not been fair valued or 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 NAV.

Volatility Risk
The  Fund may have investments that appreciate or decrease significantly in value over short periods of time. This may cause  the Fund’s NAV to experience significant increases or declines in value over short periods of time. Volatility can disrupt historical or theoretical pricing relationships, causing what should otherwise be comparatively low risk positions to incur losses. On the other hand, the lack of volatility can also result in losses for many of the  Fund’s strategies that are effectively “long” volatility. In periods of trendless and/or stagnant markets, the Fund’s strategies may have materially diminished prospects for profitability. The majority of the investment strategies that are employed by the Fund rely for their profitability on market volatility contributing to the pricing inefficiencies that they are designed to identify. Because the Fund may use some derivatives that involve economic leverage, this economic leverage will increase the volatility of a derivative instrument, as they may increase or decrease in value more quickly than the reference asset.

Additional Information About Performance Index

The Fund’s performance is compared to the Bloomberg US Aggregate Bond Index. Set forth below is additional information regarding the index to which the Fund’s performance is compared.    

Notice Regarding Index Data

“Bloomberg^®” and the Bloomberg index listed herein (the “Index”) are service marks of Bloomberg Finance L.P. and its affiliates, including Bloomberg Index Services Limited (“BISL”), the administrator of the Index (collectively, “Bloomberg”), and have been licensed for use for certain purposes by the distributor hereof (the “Licensee”). The financial products named herein (the “Products”) are not sponsored, endorsed, sold or promoted by  Bloomberg. Bloomberg does not make any representation or warranty, express or implied, to the owners of or counterparties to the Products or any member of the public regarding the advisability of investing in securities or commodities generally or in the Product particularly. The only relationship of Bloomberg to Licensee is the licensing of certain trademarks, trade names and service marks and of the Index, which are determined, composed and calculated by BISL without regard to Licensee or the Products. Bloomberg has no obligation to take the needs of Licensee or the owners of the Products into consideration in determining, composing or calculating the Index. Bloomberg is not responsible for and has not participated in the determination of the timing, price, or quantities of the Products to be issued. Bloomberg shall not have any obligation or liability, including, without limitation, to customers of the Products, in connection with the administration, marketing or trading of the Products.

BLOOMBERG DOES NOT GUARANTEE THE ACCURACY AND/OR THE COMPLETENESS OF THE INDEX OR ANY DATA RELATED THERETO AND SHALL HAVE NO LIABILITY FOR ANY ERRORS, OMISSIONS OR INTERRUPTIONS THEREIN. BLOOMBERG DOES NOT MAKE ANY WARRANTY, EXPRESS OR IMPLIED, AS TO RESULTS TO BE OBTAINED BY LICENSEE, OWNERS OF THE PRODUCT OR ANY OTHER PERSON OR ENTITY FROM THE USE OF THE INDEX OR ANY DATA RELATED THERETO. BLOOMBERG DOES NOT MAKE ANY EXPRESS OR IMPLIED WARRANTIES AND EXPRESSLY DISCLAIMS ALL WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR USE WITH RESPECT TO THE INDEX OR ANY DATA RELATED THERETO. WITHOUT LIMITING ANY OF THE FOREGOING, TO THE MAXIMUM EXTENT ALLOWED BY LAW, BLOOMBERG, ITS LICENSORS, AND ITS AND THEIR RESPECTIVE EMPLOYEES, CONTRACTORS, AGENTS, SUPPLIERS, AND VENDORS SHALL HAVE NO LIABILITY OR RESPONSIBILITY WHATSOEVER FOR ANY INJURY OR DAMAGES—WHETHER DIRECT, INDIRECT, CONSEQUENTIAL, INCIDENTAL, PUNITIVE OR OTHERWISE—ARISING IN CONNECTION WITH THE PRODUCT OR INDEX OR ANY DATA OR VALUES RELATING THERETO—WHETHER ARISING FROM THEIR NEGLIGENCE OR OTHERWISE, EVEN IF NOTIFIED OF THE POSSIBILITY THEREOF.

Portfolio Holdings Information

Each day the Fund is open for business, the Trust publicly disseminates the Fund’s full portfolio holdings as of the close of the previous day through the website. A description of the Fund’s policies and procedures with respect to the disclosure of the Fund’s  portfolio holdings is available in the Fund’s SAI. The holdings of the Fund can be found on the Fund’s website at www.americanbeaconfunds.com/etfs/CPII.

Fund Management

The Manager

AMERICAN BEACON ADVISORS, INC. (the “Manager”) serves as the Manager and administrator of the Fund. The Manager, located at 220 East Las  Colinas Boulevard, Suite 1200, Irving, Texas 75039, is an indirect wholly-owned subsidiary of Resolute Topco, Inc. (“Topco”), which is owned primarily by various institutional investment funds that are managed by financial institutions and other investment advisory firms. No owner of Topco owns 25% or more of the outstanding equity or voting interests of Topco.

The Manager was organized in 1986 to provide investment management, advisory, and administrative services. The Manager is registered as an investment adviser under the Investment Advisers Act of 1940, as amended. The Manager is also registered with the CFTC as a CPO under the Commodity Exchange Act and serves as the CPO with respect to the Fund. The Manager is exempt from registration as a commodity trading advisor under  CFTC Regulation 4.14(a)(4) with respect to the Fund.

Normally, under CFTC regulations, if a registered investment company, such as the  American Beacon Ionic Inflation Protection ETF, has less than a three-year operating history, the Manager is required to show the performance of all accounts and pools managed by the Manager that have investment objectives, policies, and strategies substantially similar to the Fund. The Manager is not providing such performance as the Manager does not have any such accounts or pools.

Under the Fund’s management agreement with the Manager (the “Management Agreement”), the Manager has agreed to pay all expenses of the Fund, except for the management fee payments to the Manager under the Management Agreement (also known as a “unitary advisory fee”), acquired fund fees and expenses, brokerage commissions and issue and transfer taxes relating to the purchase and sale of portfolio holdings, securities lending fees, expenses associated with securities sold short, costs, expenses or losses arising out of any liability or claim asserted against the Trust or Fund for violation of any law, distribution and service fees pursuant to a Rule 12b-1 plan (if any), costs of holding shareholder meetings, except meetings related to changes to the Management Agreement, the election of any Board member who is an “interested person” of the Trust as defined in Section 2(a)(19) of the 1940 Act, and/or other matters that directly benefit the Manager, taxes and governmental fees, and extraordinary expenses.

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The Fund’s Management Agreement with the Manager provides for the Fund to pay the Manager an annualized management fee equal to  0.70% of the Fund’s average daily net assets that is calculated and accrued daily.

As compensation for services provided by the Manager in connection with securities lending activities conducted by the Fund, the lending Fund pays to the Manager, with respect to cash collateral posted by borrowers, a fee of 10% of the net monthly investment income (the income earned in the form of interest, dividends and realized capital gains from the investment of cash collateral, plus any negative rebate fees paid by borrowers, less the rebate amount paid to borrowers as well as related expenses) and, with respect to collateral other than cash, a fee up to 10% of loan fees and demand premiums paid by borrowers. The SEC has granted exemptive relief that permits the Fund to invest cash collateral received from securities lending transactions in shares of one or more private or registered investment companies managed by the Manager.  

As of the date of this Prospectus, the Fund does not intend to engage in securities lending activities.

A discussion of the Board’s consideration and approval of the Management Agreement between the Trust, on behalf of the  Fund, and the Manager and the Investment Advisory Agreement between the Manager and the  sub-advisor is available in the Fund’s report as filed on Form N-CSR with the SEC for the fiscal period ended  April 30, 2025.

The Sub-Advisor

Set forth below is a brief description of the Sub-Advisor and the portfolio managers with joint and primary responsibility for the day-to-day management of the Fund. The Fund’s SAI provides additional information about the portfolio managers, including other accounts they manage, their ownership in the Fund and their compensation.

Ionic Capital Management LLC  (“Ionic”) is located at 475 5th Ave, New York, NY 10017. Ionic is an SEC-registered investment adviser and a Delaware limited liability company that provides investment advice on a discretionary basis to private investment funds and sub-advisory services to undertakings for collective investments in transferable securities and the Fund. Ionic is also registered with the CFTC as a CPO and a commodity trading advisor. As of June 30, 2025, the Sub-Advisor had assets under management of approximately $5.54 billion inclusive of certain  notionally funded mandates.

Bart E. Baum  is a co-founder of Ionic, founded in 2006, where he focuses on managing the firm’s equity option and warrant arbitrage strategies, convertibles and commodities. He has over 29 years of experience managing these strategies. Previously, Mr. Baum was a Managing Director and Portfolio Manager in the U.S. and European Volatility and Credit Arbitrage Group at Highbridge where he focused on equity options, warrants and convertible bonds. He joined Highbridge in 1992 where he also developed and implemented many of the equity arbitrage trading strategies and pioneered the firm’s closed-end fund effort. Mr. Baum earned an MBA from Fordham University and a BA in Political Science from SUNY Albany.

Doug Fincher  joined Ionic in 2013 and, together with Mr. Baum and Mr. Stone, is responsible for asset allocation across strategies for certain funds. Previously, Mr. Fincher was the president and CEO of Rock Maple Funds LLC, a New York-based fund of hedge funds. During his tenure at Rock Maple Funds LLC, from 2008 to 2012, he was also a portfolio manager and served on the firm’s investment committee. From 2002 to 2008, Mr. Fincher worked for CIBC WM Inc., where he managed two departments and served on the bank’s U.S. Executive Management Committee.  Earlier in his career, Mr.  Fincher held a variety of senior management positions at Lazard Frères, ABN AMRO Bank N.V. and Kidder Peabody. Mr. Fincher earned a BA in History from Lafayette College.

Daniel  L. Stone  is a co-founder of Ionic, founded in 2006, where he focuses on managing the firm’s interest rate, currency and credit strategies. He has over 25 years of experience managing relative value arbitrage and long volatility strategies across multiple asset classes. Previously, Mr. Stone was a Managing Director and Portfolio Manager in the U.S. and European Volatility and Credit Arbitrage Group at Highbridge Capital Management, LLC (“Highbridge”). He joined Highbridge in 1996 where he also managed convertible bonds and equity, interest rate and credit derivatives. Mr. Stone earned an AB in Economics Magna cum Laude from Harvard College.

The Distributor

Foreside Financial Services, LLC, a wholly owned subsidiary of Foreside Financial Group, LLC (doing business as ACA Group) (“Distributor”) serves as the Fund’s distributor.

The Distributor distributes Creation Units for the Fund on a best efforts basis. Shares in less than Creation Units are not distributed by the Distributor, and the Distributor does not maintain a secondary market in the shares of the Fund. The Distributor has no role in determining the policies of the Fund or the securities that are purchased or sold by the Fund. The Distributor’s principal address is 190 Middle Street, Suite 301, Portland, ME 04101.

Valuation of Shares

The Fund’s NAV per share is computed by adding total assets, subtracting all of the Fund’s liabilities, and dividing the result by the total number of shares outstanding, which may differ from the Fund’s market price. Investors that purchase and sell the Fund in the secondary market will transact at market prices, which may be lower or higher than the NAV per share.

The NAV per share of the Fund’s shares is determined based on a pro rata allocation of the Fund’s investment income, expenses and total capital gains and losses. The Fund’s NAV per share is determined each business day as of the regular close of trading on the NYSE, which is typically 4:00 p.m. Eastern Time. However, if trading on the NYSE closes at a time other than 4:00 p.m. Eastern Time, the Fund’s NAV per share typically would still be determined as of the regular close of trading on the NYSE. The Fund does not price its shares on days that the NYSE is closed. Foreign exchanges may permit trading in foreign securities on days when the Fund is not open for business, which may result in the value of the Fund’s portfolio investments being affected at a time when you are unable to buy or sell shares.

Equity securities and certain derivative instruments that are traded on an exchange are valued based on market value. Certain derivative instruments (other than short-term securities) usually are valued on the basis of prices provided by a pricing service. The price of debt securities generally is determined using pricing services or quotes obtained from broker/dealers who may consider a number of inputs and factors, such as comparable characteristics, yield curve, credit spreads, estimated default rates, coupon rates, underlying collateral and estimated cash flow. Investments in mutual funds are valued at the closing NAV per share of the mutual funds on the day of valuation. Equity securities, including shares of closed-end funds and ETFs, are valued at the last sale price or official closing price.

The valuation of securities traded on foreign markets and certain fixed-income securities will generally be based on prices determined as of the earlier closing time of the markets on which they primarily trade, unless a significant event has occurred. When the Fund holds securities or other assets that are denominated in a foreign currency, the exchange rates as of 4:00 p.m. Eastern Time will normally be used.

Rule 2a-5 under the Investment Company Act (the “Valuation Rule”) establishes requirements for determining fair value in good faith for purposes of the Investment Company Act, including related oversight and reporting requirements. The rule also defines when market quotations are “readily available” for purposes of the Investment Company Act, the threshold for determining whether the Fund must fair value a security.

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The Valuation Rule permits the Fund’s board to designate the Fund’s primary investment adviser as “valuation designee” to perform the Fund’s fair value determinations subject to board oversight and certain reporting and other requirements intended to ensure that the registered investment company’s board receives the information it needs to oversee the investment adviser’s fair value determinations. The Board has designated the Manager as valuation designee under the Valuation Rule to perform fair value functions in accordance with the requirements of the Valuation Rule.

Securities may be valued at fair value, as determined in good faith and pursuant to the Manager’s procedures. For example, fair value pricing will be used when market quotations are not readily available or reliable, as determined by the Manager, such as for fixed income securities and when: (i) trading for a security is restricted or stopped; (ii) a security’s trading market is closed (other than customary closings); or (iii) a security has been de-listed from a national exchange. A security with limited market liquidity may require fair value pricing if the Manager determines that the available price does not reflect the security’s true market value. In addition, if a significant event that the Manager determines to affect the value of one or more securities held by the Fund occurs after the close of a related exchange but before the determination of the Fund’s NAV per share, fair value pricing may be used on the affected security or securities. Securities of small-capitalization companies are also more likely to require a fair value determination using these procedures because they are more thinly traded and less liquid than the securities of larger capitalization companies. Securities may be fair valued as a result of significant events occurring after the close of the foreign markets in which it invests. In addition, the  Fund may invest in illiquid securities requiring these procedures.

Attempts to determine the fair value of securities introduce an element of subjectivity to the pricing of securities. As a result, the price of a security determined through fair valuation techniques may differ from the price quoted or published by other sources and may not accurately reflect the market value of the security when trading resumes. If a reliable market quotation becomes available for a security formerly valued through fair valuation techniques, the Manager compares the new market quotation to the fair value price to evaluate the effectiveness of the Fund’s fair valuation procedures. You may view the Fund’s most recent NAV per share at www.americanbeaconfunds.com by clicking on ‘‘Quick Links’’ and then ‘‘Daily NAVs.’’

About Your Investment

Purchase and Redemption of Shares

Shares of the Fund may be purchased or redeemed directly from the Fund only in Creation Units or multiples thereof. Only a broker-dealer that enters into an Authorized Participant agreement with the Distributor (an “Authorized Participation Agreement”) may engage in creation and redemption transactions directly with the Fund. Purchases and redemptions directly with the Fund must follow the Fund’s procedures, and are subject to transaction fees, which are described in the SAI. Orders for such transactions may be rejected or delayed if they are not submitted in good order and subject to the other conditions set forth in this Prospectus and the SAI. Please see the SAI for more information about purchases and redemptions of Creation Units.

Once purchased (i.e., created) by an Authorized Participant, shares are listed on the Exchange and trade in the secondary market. When you buy or sell the Fund’s shares in the secondary market, you will pay or receive the market price. The price at which you buy or sell shares (i.e., the market price) may be more or less than the NAV of the shares. Unless imposed by your broker, there is no minimum dollar amount you must invest in the Fund and no minimum number of Shares you must buy. Shares can be bought and sold throughout the trading day like other publicly traded securities. Most investors will buy and sell shares through a broker and, thus, will incur customary brokerage commissions and charges when buying or selling shares. Except when aggregated in Creation Units, shares are not redeemable by the Fund.

The secondary markets are closed on weekends and also are generally closed on the following holidays: New Year’s Day, Martin Luther King Jr. Day, Presidents’ Day, Good Friday, Memorial Day, Juneteenth National Independence Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day, but may be closed at other times. When a  holiday  observed by the Exchange falls on a Saturday, the Exchange will not be open for business on the preceding Friday unless unusual business conditions exist, such as the ending of a monthly or yearly accounting period.

For more information on how to buy and sell shares of the Fund, call 1-833-471-3562 or visit www.americanbeaconfunds.com.

Premium/Discount Information

Information showing the number of days the market price of the Fund’s shares was greater than the Fund’s NAV per share (i.e., at a premium) and the number of days it was less than the Fund’s NAV per share (i.e., at a discount) for various time periods will be available by visiting the Fund’s website at www.americanbeaconfunds.com/etfs/CPII. The premium and discount information contained on the website will represent past performance and cannot be used to predict future results.

Investments by Registered Investment Companies

Section 12(d)(1) of the Investment Company Act restricts investments by investment companies in the securities of other investment companies, including shares of the Fund. Registered investment companies are permitted to invest in the Fund beyond the limits set forth in Section 12(d)(1) subject to compliance with Rule 12d1-4 under the Investment Company Act, including that such investment companies enter into an agreement with the Fund.

Continuous Offering

The method by which Creation Units of Fund shares are created and traded may raise certain issues under applicable securities laws. Because new Creation Units of shares are issued and sold by the Fund on an ongoing basis, a “distribution,” as such term is used in the Securities Act of 1933 (the “Securities Act”), may occur at any point. Broker-dealers and other persons are cautioned that some activities on their part may, depending on the circumstances, result in their being deemed participants in a distribution in a manner which could render them statutory underwriters and subject them to the prospectus delivery requirement and liability provisions of the Securities Act.

For example, a broker-dealer firm or its client may be deemed a statutory underwriter if it takes Creation Units after placing an order with the Distributor, breaks them down into constituent shares and sells the shares directly to customers or if it chooses to couple the creation of a supply of new shares with an active selling effort involving solicitation of secondary market demand for shares. A determination of whether one is an underwriter for purposes of the Securities Act must take into account all the facts and circumstances pertaining to the activities of the broker-dealer or its client in the particular case, and the examples mentioned above should not be considered a complete description of all the activities that could lead to a characterization as an underwriter.

Broker-dealer firms should also note that dealers who are not “underwriters” but are effecting transactions in shares, whether or not participating in the distribution of shares, are generally required to deliver a prospectus. This is because the prospectus delivery exemption in Section 4(3) of the Securities Act is not available in respect of such transactions as a result of Section 24(d) of the 1940 Act. As a result, broker-dealer firms should note that dealers who are not “underwriters” but are participating in a distribution (as contrasted with engaging in ordinary secondary market transactions) and thus dealing with the shares that are part of an overallotment within the meaning of Section 4(3)(C) of the Securities Act, will be unable to take advantage of the prospectus delivery exemption provided by Section 4(3) of the Securities Act. For delivery of prospectuses to exchange members, the prospectus delivery mechanism of Rule 153 under the Securities Act is only available with respect to transactions on a national exchange.

18Prospectus – About Your Investment 

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Dealers effecting transactions in the Fund’s shares, whether or not participating in this distribution, are generally required to deliver a prospectus. This is in addition to any obligation of dealers to deliver a prospectus when acting as underwriters.

Beneficial Ownership

The Depository Trust Company (“DTC”) serves as securities depository for the Fund’s shares. DTC, or its nominee, is the owner of record for all outstanding shares. Beneficial owners of the Fund’s shares are not entitled to have shares registered in their names, will not receive or be entitled to receive physical delivery of certificates in definitive form and are not considered the registered holder thereof. Accordingly, to exercise any rights of a holder of shares, each beneficial owner must rely on the procedures of: (i) DTC; (ii) the securities brokers and dealers, banks, trust companies, clearing corporations and certain other organizations, some of whom (and/or their representatives) own DTC (“DTC Participants”), and (iii) brokers, dealers, banks and trust companies that clear through or maintain a custodial relationship with a DTC Participant, either directly or indirectly, through which such beneficial owner holds its interests (“Indirect Participants”). The Trust understands that, under existing industry practice, in the event the Fund requests any action of holders of shares, or a beneficial owner desires to take any action that DTC, as the record owner of all outstanding shares, is entitled to take, DTC would authorize the DTC Participants to take such action and that the DTC Participants would authorize the Indirect Participants and beneficial owners acting through such DTC Participants to take such action and would otherwise act upon the instructions of beneficial owners owning through them. For more detailed information, see “Book Entry Only System” in the Fund’s Statement of Additional Information.

Payments to Financial Intermediaries

The Manager and/or the Manager’s affiliates (at their own expense) may pay compensation to financial intermediaries for shareholder-related services and, if applicable, distribution-related services, including administrative, sub-transfer agency type, recordkeeping and shareholder communication services. Such payments, which may be significant to the intermediary, are not made by the Fund. Rather, such payments are made by the Manager or its affiliates from their own resources, and constitute what it sometimes referred to as “revenue sharing.”

The amount of compensation paid to different financial intermediaries may differ. The compensation paid to a financial intermediary may be based on a variety of factors, including average assets under management in accounts distributed and/or serviced by the financial intermediary, gross sales by the financial intermediary and/or the number of accounts serviced by the financial intermediary that invest in the Fund.

Compensation received by a financial intermediary from the Manager or an affiliate of the Manager may include payments for marketing and/or training expenses incurred by the financial intermediary, including expenses incurred by the financial intermediary in educating (itself and) its salespersons with respect to Fund shares. For example, such compensation may include reimbursements for expenses incurred in attending educational seminars regarding the Fund, including travel and lodging expenses. It may also cover the development of technology platforms and reporting systems, data provision services, financial intermediaries making shares of the Fund available to sales representatives and/or customers of a fund supermarket platform or similar program sponsor, services provided in connection with such fund supermarket platforms and programs, or costs incurred by financial intermediaries in connection with their efforts to sell Fund shares, including costs incurred compensating (registered) sales representatives, preparing, printing and distributing sales literature.

Any compensation received by a financial intermediary and the prospect of receiving it may create conflicts of interest between the intermediary and its customers and may provide the financial intermediary with an incentive to recommend the shares of the Fund or another fund in the American Beacon Funds Complex over other potential investments, and may cause it to make decisions about the level of services provided to its customers based on the payments or other financial incentives it is eligible to receive. Similarly, the compensation may cause financial intermediaries to elevate the prominence of the Fund within their organization by, for example, placing it on a list of preferred funds. You can contact your financial intermediary for details about any such payments it receives from the Manager or its affiliates, or any other fees, expenses, or commissions your financial intermediary may charge you in addition to those disclosed in this Prospectus.

Frequent Trading and Market Timing

The Trust’s Board of Trustees has determined not to adopt policies and procedures designed to prevent or monitor for frequent purchases and redemptions of the Fund’s shares because the  Fund sells and redeems its shares at NAV only in Creation Units pursuant to the terms of an Authorized Participant Agreement between the Authorized Participant and the Distributor, and such direct trading between the Fund and Authorized Participants is critical to ensuring that the Fund’s shares trade at or close to NAV. Further, the vast majority of trading in Fund shares occurs on the secondary market, which does not involve the Fund directly and therefore does not cause the Fund to experience many of the harmful effects of market timing, such as dilution and disruption of portfolio management. In addition, the Fund imposes a transaction fee on Creation Unit transactions, which is designed to offset transfer and other transaction costs incurred by the Fund in connection with the issuance and redemption of Creation Units and may employ fair valuation pricing to minimize potential dilution from market timing. The  Fund reserves the right to reject any purchase order at any time and reserves the right to impose restrictions on disruptive, excessive, or short-term trading.

Distributions and Taxes

The Fund distributes most or all of its net earnings and realized gains, if any, each taxable year in the form of dividends from net investment income (“dividends”) on an annual basis and distributions of realized net capital gains (“capital gains distributions”) and net gains from foreign currency transactions (sometimes referred to below collectively as “other distributions”) on an annual basis (and dividends, capital gains distributions, and other distributions are sometimes referred to below collectively as “distributions”). Different tax treatment applies to different types of distributions (as described in the table below).

The Fund does not have a fixed dividend rate and does not guarantee that it will pay any distributions in any particular period. Any dividends are paid monthly, and capital gains distributions and other distributions are paid annually.

No dividend reinvestment service is provided by the Fund. Financial intermediaries may make available the DTC book-entry Dividend Reinvestment Service for use by beneficial owners of Fund shares for reinvestment of their dividend distributions. Beneficial owners should contact their financial intermediary to determine the availability and costs of the service and the details of participation therein. Financial intermediaries may require beneficial owners to adhere to specific procedures and timetables. If this service is available and used, dividend distributions of both income and net capital gains will be automatically reinvested in additional whole shares of the Fund purchased in the secondary market.

Distributions of Fund income are generally taxable to you regardless of the manner in which received or reinvested.

Taxes

Fund distributions are taxable to shareholders other than tax-qualified retirement plans and accounts and other tax-exempt investors. However, the portion of the Fund’s dividends derived from its investments in U.S. Government obligations, if any, is generally exempt from state and local income taxes. Fund dividends, except those that are “qualified dividend income” (as described below), are subject to federal income tax at the rates for ordinary income contained in the Internal Revenue Code. The following table outlines the typical status of transactions in taxable accounts:

Prospectus – About Your Investment19 

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To the extent distributions are attributable to net capital gain that the Fund recognizes they are subject to a 15% maximum federal income tax rate for individual and certain other non-corporate shareholders (each, an ‘‘individual’’) (20% for individuals with taxable income exceeding certain thresholds, which are indexed for inflation annually), regardless of how long the shareholder held his or her Fund shares. A portion of the dividends the Fund pays to individuals may be ‘‘qualified dividend income’’ (‘‘QDI’’) and thus eligible for the preferential rates, mentioned above,  that apply to net capital gain. QDI is the aggregate of dividends the Fund receives on shares of most domestic corporations (excluding most distributions from REITs) and certain foreign corporations with respect to which the Fund satisfies certain holding period and other restrictions. To be eligible for those rates, a shareholder must meet similar restrictions with respect to his or her Fund shares.

A portion of the dividends the Fund pays may also be eligible for the dividends-received deduction allowed to corporations (“DRD”), subject to similar holding period and other restrictions, but the eligible portion may not exceed the aggregate dividends the Fund receives from domestic corporations only.

The Fund does not expect a substantial part of its dividends to qualify as QDI or be eligible for the DRD.

A shareholder may realize a taxable gain or loss when selling shares. That gain or loss is treated as a short-term or long-term capital gain or loss, depending on how long the shares were held. Any capital gain an individual shareholder recognizes on a sale of Fund shares that have been held for more than one year will qualify for the 15% and 20% tax rates mentioned above.

An individual must pay a 3.8% tax on the lesser of (1) the individual’s ‘‘net investment income,’’ which generally includes distributions the Fund pays and net gains realized on the sale or exchange of Fund shares, or (2) the excess of the individual’s ‘‘modified adjusted gross income’’ over a threshold amount ($250,000 for married persons filing jointly and $200,000 for single taxpayers). This tax is in addition to any other taxes due on that income. A similar tax applies to estates and trusts. Shareholders should consult their own tax advisers regarding the effect, if any, this tax may have on their investment in Fund shares.

Each year, the Fund’s shareholders will receive tax information regarding Fund distributions and dispositions of Fund shares to assist them in preparing their income tax returns.

The foregoing is only a summary of some of the important federal income tax considerations that may affect Fund shareholders, who should consult their tax advisers regarding specific questions as to the effect of federal, state and local income taxes on an investment in the Fund.

Taxes on Creations and Redemptions of Creation Units
A person who purchases a Creation Unit by exchanging securities in-kind generally will recognize a gain or loss equal to the difference between (i) the sum of the market value of the Creation Units at the time of the exchange and any net amount of cash received by the Authorized Participant in the exchange and (ii) the sum of the purchaser’s aggregate basis in the securities surrendered and any net amount of cash paid for the Creation Units. A person who redeems Creation Units and receives securities in-kind from the Fund will generally recognize a gain or loss equal to the difference between the redeemer’s basis in the Creation Units, and the aggregate market value of the securities received and any net cash received. The IRS, however, may assert that a loss realized upon an in-kind exchange of securities for Creation Units or an exchange of Creation Units for securities cannot be deducted currently under the rules governing “wash sales,” or on the basis that there has been no significant change in economic position. Persons effecting in-kind creations or redemptions should consult their own tax adviser with respect to these matters.

The Fund has the right to reject an order for Creation Units if the purchaser (or a group of purchasers) would, upon obtaining the shares so ordered, own 80% or more of the outstanding shares of the Fund and if, pursuant to section 351 of the Internal Revenue Code, the Fund would have a basis in the deposit securities different from the market value of such securities on the date of deposit. The Fund also has the right to require information necessary to determine beneficial share ownership for purposes of the 80% determinations.

Additional Information

The Fund’s Board oversees generally the operations of the Fund. The Trust enters into contractual arrangements with various parties, including among others, the Fund’s manager, sub-advisor(s), custodian, transfer agent, and accountants, who provide services to the Fund. Shareholders are not parties to any such contractual arrangements, and those contractual arrangements are not intended to create in any shareholder any right to enforce them directly against the service providers or to seek any remedy under them directly against the service providers.

This Prospectus provides information concerning the Fund that you should consider in determining whether to purchase Fund shares. Neither this Prospectus nor the SAI is intended, or should be read, to be or create an agreement or contract between the Trust or the Fund and any investor, or to create any rights in any shareholder or other person other than any rights under federal or state law that may not be waived. Nothing in this Prospectus, the SAI or the Fund’s reports to shareholders is intended to provide investment advice and should not be construed as investment advice.

Distribution Plan

The Fund has adopted a Distribution Plan in accordance with Rule 12b-1 under the Investment Company Act, which allows the Fund to pay distribution and other fees for the sale of Fund shares and for other services provided to shareholders. The Plan also authorizes the use of any fees received by the Manager in accordance with the Management Agreement, and any fees received by the sub-advisor pursuant to its Investment Advisory Agreement, to be used for the sale and distribution of Fund shares. The Plan provides that the shares of the Fund may pay up to 0.25% per annum of the average daily net assets

20Prospectus – Additional Information 

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attributable to the shares, to the Manager (or another entity approved by the Board). Because these fees would be paid out of the Fund’s assets on an ongoing basis, over time these fees would increase the cost of your investment and may cost you more than paying other types of sales charges. There is no present intention of Fund shares paying, accruing, or incurring any Rule 12b-1 fees and Fund shares will not pay, accrue or incur any Rule 12b-1 fees until such time as approved by the Fund’s Board of Trustees.

Portfolio Holdings

Each day the Fund is open for business, the Trust publicly disseminates the Fund’s full portfolio holdings as of the close of business on the previous day through the Fund’s website at www.americanbeaconfunds.com. A description of the Fund’s policies and procedures regarding the disclosure of portfolio holdings is available in the Fund’s SAI, which you may also access on the Fund’s website at www.americanbeaconfunds.com or by calling 1-833-471-3562 to request a free copy.

Delivery of Documents

The summary prospectus and Annual Shareholder Report for the fiscal year ended April 30, 2025 are available, and the Semi-Annual Shareholder Report for the Fund’s fiscal period ended July 31, 2025 and Annual Shareholder Report for the Fund’s fiscal year ending January 31, 2026 will be available, online at www.americanbeaconfunds.com/reports. If you are interested in electronic delivery of the Fund’s summary prospectus, please go to www.americanbeaconfunds.com and click on ‘‘Quick Links’’ and then ‘‘Register for E-Delivery.’’

To reduce expenses, your financial institution may mail only one copy of the materials described above to those addresses shared by two or more accounts. If you wish to receive individual copies of these documents, please contact your financial institution. Delivery of individual copies will commence thirty days after receiving your request.

Prospectus – Additional Information21 

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Financial Highlights

The financial highlights table is intended to help you understand the Fund’s financial performance for the past five fiscal years or, if shorter the period of the Fund’s operations. Certain information reflects financial results for a single Fund share. The total returns in the Fund’s table represent the rate that an investor would have earned (or lost) on an investment in that Fund (assuming reinvestment of all dividends and other distributions). The financial highlights for periods prior to April 14, 2025, represent the financial history of the Fund’s Predecessor Fund. The Predecessor Fund was acquired by the Fund in a reorganization on April 11, 2025. The information for the fiscal year ended April 30, 2024 and the period ended April 30, 2023 was audited by the Predecessor Fund’s independent registered public accounting firm, Cohen & Company, Ltd., whose report, along with further detail on the Predecessor Fund’s financial statements, are included in the Predecessor Fund’s Annual Shareholder Reports, which are available upon request by calling 1-866-214-2234. The information in the financial highlights for the fiscal year ended April 30, 2025, has been derived from the Fund’s financial statements audited by  PricewaterhouseCoopers LLP, an Independent Registered Public Accounting Firm, whose report, along with the Fund’s financial statements, is included in the Fund’s annual Form N-CSR for the fiscal year ended April 30, 2025, which you may obtain upon request by calling 1-833-471-3562.

22Prospectus – Additional Information 

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Additional Information

Additional information about the Fund is found in the documents listed below. Request a free copy of these documents by calling 1-833-471-3562 or you may access them on the Fund’s website at www.americanbeaconfunds.com.

Annual Shareholder Report/Semi-Annual Shareholder Report and Form N-CSR

The Fund’s Annual and Semi-Annual Shareholder Reports and Form N-CSR, as available, include or will include additional information about  the Fund’s investments. The Fund’s Annual Shareholder Report also includes a discussion by the Manager of market conditions and investment strategies that materially affected the Fund’s performance during the reporting period. The Form N-CSR includes or will include the Fund’s annual and semi-annual financial statements, as well as the report of the Fund’s independent registered public accounting firm in the annual financial statements. Reports are available approximately 60 days after the Fund passes its first annual and semi-annual reporting periods.

SAI

The SAI contains more details about the Fund and its investment policies. The SAI is incorporated in this Prospectus by reference (it is legally part of this Prospectus). A current SAI is on file with the SEC.

To obtain more information about the Fund, such as the Fund’s financial statements, or to request a copy of the documents listed above:

The SAI and other information about the Fund are available on the EDGAR Database on the SEC’s Internet site at www.sec.gov. Copies of this information may be obtained, after paying a duplicating fee, by electronic mail to [email protected], or by writing to the SEC’s Public Reference Section, 100 F Street, NE, Washington, D.C. 20549-1520. The SAI and other information about the Fund may also be reviewed and copied at the SEC’s Public Reference Room. Information on the operation of the SEC’s Public Reference Room may be obtained by calling the SEC at (202) 551-8090.

SEC File Number 811-09603

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Appendix A  

GLOSSARY

Prospectus – AppendixA-1