# EDGAR Filing Document

**Accession Number:** 0000809593
**File Stem:** 0001133228-23-000912
**Filing Date:** 2023-2
**Character Count:** 48845
**Document Hash:** 4e960f3e8c0bfe520eadc11dce2be16d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001133228-23-000912.hdr.sgml**: 20230228

**ACCESSION NUMBER**: 0001133228-23-000912

**CONFORMED SUBMISSION TYPE**: 497K

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20230228

**DATE AS OF CHANGE**: 20230228

**EFFECTIVENESS DATE**: 20230228

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** AMERICAN BEACON FUNDS
- **CENTRAL INDEX KEY:** 0000809593
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1031

**FILING VALUES:**
- **FORM TYPE:** 497K
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-11387
- **FILM NUMBER:** 23687577

**BUSINESS ADDRESS:**
- **STREET 1:** 220 EAST LAS COLINAS BOULEVARD
- **STREET 2:** SUITE 1200
- **CITY:** IRVING
- **STATE:** TX
- **ZIP:** 75039
- **BUSINESS PHONE:** 8173916100

**MAIL ADDRESS:**
- **STREET 1:** 220 EAST LAS COLINAS BOULEVARD
- **STREET 2:** SUITE 1200
- **CITY:** IRVING
- **STATE:** TX
- **ZIP:** 75039

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AMERICAN AADVANTAGE FUNDS
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AMERICAN EAGLE FUNDS
- **DATE OF NAME CHANGE:** 19890813

## Series and Classes Contracts Data

### American Beacon Small Cap Value Fund (Series ID: S000001818)

| Class ID   | Class Name     | Ticker Symbol   |
|:---|:---|:---|
| C000004768 | R5 Class       | AVFIX           |
| C000004769 | Investor Class | AVPAX           |
| C000004770 | Advisor Class  | AASSX           |
| C000079123 | Y Class        | ABSYX           |
| C000089424 | A Class        | ABSAX           |
| C000092341 | C Class        | ASVCX           |
| C000180103 | R6 Class       | AASRX           |

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| | |
|:---|:---|
| American Beacon<br>Small Cap Value Fund<sup>SM</sup> | ![](sp2359img001.jpg) |

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 **SUMMARY PROSPECTUS** **March 1, 2023**<br>

Before you invest, you may want to review the Fund's prospectus and statement of additional information, which contain more information about the Fund and its risks. The current prospectus and statement of additional information, dated March 1, 2023, are incorporated by reference into this summary prospectus. You can find the Fund's prospectus, statement of additional information, reports to shareholders, and other information about the Fund online at <br>www.americanbeaconfunds.com/resource_center/MutualFundForms.aspx. You can also get this information at no cost by calling 1-800-658-5811 or by sending an email request to americanbeaconfunds@ambeacon.com.

 **Share Class \| A:** **ABSAX \| C:** **ASVCX \| Y:** **ABSYX \| R6:** **AASRX \| Advisor:** **AASSX \| R5:** **AVFIX \| Investor:** **AVPAX**<br>

Investment Objective

The Fund's investment objective is long-term capital appreciation and current income.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund. **You may pay other fees, such as brokerage** **commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.** You may qualify for sales discounts if you and your eligible family members invest, or agree to invest in the future, at least $50,000 in all classes of the American Beacon Funds on an aggregated basis. More information about these and other discounts is available from your financial professional and in "Choosing Your Share Class" on page 66 of the Prospectus and "Additional Purchase and Sale Information for A Class Shares" on page 74 of the Statement of Additional Information ("SAI"). With respect to purchases of shares through specific intermediaries, you may find additional information regarding sales charge discounts and waivers in Appendix A to the Fund's Prospectus entitled "Intermediary Sales Charge Discounts, Waivers and Other Information."

**Shareholder Fees** (fees paid directly from your investment)

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| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
|  **Share Class** | **A** | **C** | **Y** | **R6** | **Advisor** | **R5** | **Investor** |
| Maximum sales charge imposed on purchases (as a percentage of offering price) | 5.75<br> %<br>|  |  |  |  |  |  |
| Maximum deferred sales charge (as a percentage of the lower of original offering price or redemption proceeds) | 0.50<br> %<br> <sup>1</sup><br>| 1.00<br> %<br>|  |  |  |  |  |

---

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| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| **Annual Fund Operating Expenses** (Expenses that you pay each year as a percentage of the value of your investment) |  |  |  |  |  |  |  |
|  **Share Class** | **A** | **C** | **Y** | **R6** | **Advisor** | **R5** | **Investor** |
| Management Fees | 0.71<br> %<br>| 0.71<br> %<br>| 0.71<br> %<br>| 0.71<br> %<br>| 0.71<br> %<br>| 0.71<br> %<br>| 0.71<br> %<br>|
| Distribution and/or Service (12b-1) Fees | 0.25<br> %<br>| 1.00<br> %<br>| 0.00<br> %<br>| 0.00<br> %<br>| 0.25<br> %<br>| 0.00<br> %<br>| 0.00<br> %<br>|
| Other Expenses | 0.25<br> %<br>| 0.22<br> %<br>| 0.15<br> %<br>| 0.06<br> %<br>| 0.32<br> %<br>| 0.08<br> %<br>| 0.41<br> %<br>|
| **Total Annual Fund Operating Expenses** | **1.21%**<br>| **1.93%**<br>| **0.86%**<br>| **0.77%**<br>| **1.28%**<br>| **0.79%**<br>| **1.12%**<br>|

---

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| | |
|:---|:---|
| 1 | A contingent deferred sales charge (''CDSC'') of 0.50% will be charged on certain purchases of $1,000,000 or more of A Class shares that are redeemed in whole or part within 18 months of purchase. |

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**Example**

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. C Class shares automatically convert to A Class shares 8 years after purchase, if the conversion is available through your financial intermediary. This Example reflects your costs as though C Class shares were held for the full 10-year period. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

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| | | | | |
|:---|:---|:---|:---|:---|
|  **Share Class** | **1 Year** | **3 Years** | **5 Years** | **10 Years** |
| A | $691 | $937 | $1202 | $1957 |
| C | $296 | $606 | $1042 | $2254 |
| Y | $88 | $274 | $477 | $1061 |
| R6 | $79 | $246 | $428 | $954 |
| Advisor | $130 | $406 | $702 | $1545 |
| R5 | $81 | $252 | $439 | $978 |
| Investor | $114 | $356 | $617 | $1363 |

---

Assuming no redemption of shares:

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| | | | | |
|:---|:---|:---|:---|:---|
|  **Share Class** | **1 Year** | **3 Years** | **5 Years** | **10 Years** |
| C | $196 | $606 | $1042 | $2254 |

---

SCV030123

**American Beacon Small Cap Value Fund** - Summary Prospectus**1**

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Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 72% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, at least 80% of the Fund's net assets (plus the amount of any borrowings for investment purposes) are invested in equity securities of small market capitalization U.S. companies. These companies have market capitalizations of $5 billion or less at the time of investment. To a lesser extent, the Fund may invest in mid-capitalization and micro-capitalization companies. The Fund's investments principally include common stocks (including dividend-paying stocks) and real estate investment trusts ("REITs").

The Manager allocates the assets of the Fund among different sub-advisors. The Manager believes that this strategy may help the Fund outperform other investment styles over the longer term while reducing volatility and downside risk. The sub-advisors select stocks that, in their opinion, have most or all of the following characteristics (relative to the Russell 2000<sup>®</sup> Index):

■ above-average earnings growth potential,

■ below-average price to earnings ratio,

■ below-average price to book value ratio

■ below-average price to revenue ratio, and

■ above average free cash flow yield and return on capital.

Except for Brandywine Global Investment Management, LLC ("Brandywine Global"), each of the sub-advisors determines the earnings growth prospects of companies based upon a combination of internal and external research using fundamental analysis and considering changing economic trends. The process is research driven and takes into consideration items such as a company's tangible assets, sustainability of its cash flows, capital intensity and financial leverage.

Brandywine Global employs a primarily quantitative strategy that focuses on buying stocks deemed to be less expensive based on price to earnings ratio or price to book value ratio and that have positive price momentum.

For each sub-advisor, the decision to sell a stock is typically based on the belief that the company is no longer considered undervalued or shows deteriorating fundamentals, or that better investment opportunities exist in other stocks. The Fund may have significant exposure to the Financials sector. However, as the sector composition of the Fund's portfolio changes over time, the Fund's exposure to the Financials sector may be lower at a future date, and the Fund's exposure to other market sectors may be higher.

The Fund may invest cash balances in other investment companies, including a government money market fund advised by the Manager, with respect to which the Manager also receives a management fee. The Fund may purchase and sell equity index futures contracts to gain market exposure on cash balances or reduce market exposure in anticipation of liquidity needs.

Each sub-advisor's investment processes incorporate the sub-advisor's environmental, social and/or governance ("ESG") analysis as a consideration in the assessment of potential portfolio investments for which an ESG score is available or it is feasible to calculate an ESG score. Accordingly, a small portion of the securities in the portions of the Fund managed by Brandywine Global Investment Management, LLC, DePrince, Race & Zollo, Inc., and Newton Investment Management North America, LLC may not receive an ESG score and the sub-advisors may not consider ESG analysis. In addition, as ESG information is just one investment consideration, ESG considerations are not solely determinative in any investment decision made by a sub-advisor. In addition, the sub-advisors do not use ESG considerations to limit, restrict or otherwise exclude companies or sectors from the Fund's investment universe. A sub-advisor may use ESG research and/or ratings information provided by one or more third parties in performing this analysis and considering ESG risks.

The Fund may seek to earn additional income by lending its securities to certain qualified broker-dealers and institutions.

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.

**Cybersecurity and Operational Risk**<br>Operational risks arising from, among other problems, human errors, systems and technology disruptions or failures, or cybersecurity incidents may negatively impact the Fund and its service providers as well as the ability of shareholders to transact with the Fund, 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 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. It is not possible for the Fund or its service providers 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. The Fund cannot control the cybersecurity plans and systems of its service providers, its counterparties or the issuers of securities in which the Fund invests. Most issuers in which the Fund invests are heavily dependent on computers for data storage and operations, and require ready access to the internet to conduct their business. Thus, cybersecurity incidents could also affect issuers of securities in which the Fund invests, leading to significant loss of value.

**Dividend Risk**<br>An issuer of stock held by the Fund may choose not to declare a dividend or the dividend rate might not remain at current levels or increase over time. Dividend paying stocks might not experience the same level of earnings growth or capital appreciation as non-dividend paying stocks. Securities that pay dividends may be sensitive to changes in interest rates and, as interest rates rise or fall, the prices of such securities may fall.

**Environmental, Social, and/or Governance Investing Risk**<br>The use of environmental, social, and/or governance ("ESG") considerations by a sub-advisor may cause the Fund to make different investments than funds that have a similar investment style but do not incorporate such considerations in their strategy. As with the use of any investment considerations involved in investment decisions, there is no guarantee that the use of any ESG investment considerations will result in the selection of issuers that will outperform other issuers or help reduce risk in the Fund. The Fund may underperform funds that do not incorporate these considerations or incorporate different ESG considerations. Although a sub-advisor has established its own process to oversee ESG integration in accordance with the Fund's strategies, successful integration

**2** **American Beacon Small Cap Value Fund** - Summary Prospectus

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of ESG factors will depend on a sub-advisor's skill in researching, identifying, and applying these factors, as well as on the availability of relevant data. A sub-advisor may use ESG research and/or ratings information provided by one or more third parties in performing this analysis and considering ESG risks.

The regulatory landscape with respect to ESG investing in the United States is evolving and any future rules or regulations may require the Fund to change its investment process with respect to the integration of ESG factors.

**Equity Investments Risk**<br>Equity securities are subject to investment risk, issuer risk and market risk. In general, the values of stocks and other equity securities fluctuate, and sometimes widely fluctuate, in response to changes in a company's financial condition as well as general market, economic and political conditions and other factors. The Fund may experience a significant or complete loss on its investment in an equity security. In addition, stock prices may be particularly sensitive to rising interest rates, which increase borrowing costs and the costs of capital. The Fund may invest in the following equity securities, which may expose the Fund to the following additional risks:

■ Common Stock Risk. The value of a company's common stock may fall as a result of factors affecting the company, companies in the same industry or sector, or the financial markets overall. Common stock generally is subordinate to preferred stock upon the liquidation or bankruptcy of the issuing company.

■ Real Estate Investment Trusts ("REITs") Risk. Investments in REITs are subject to the risks associated with investing in the real estate industry, including, among other risks: adverse developments affecting the real estate industry; declines in real property values; changes in interest rates; defaults by mortgagors or other borrowers and tenants; lack of availability of mortgage funds or financing; extended vacancies of properties, especially during economic downturns; casualty or condemnation losses; and governmental actions, such as changes to tax laws, zoning regulations or environmental regulations. REITs also are dependent upon the skills of their managers and are subject to heavy cash flow dependency or self-liquidation. Regardless of where a REIT is organized or traded, its performance may be affected significantly by events in the region where its properties are located. Domestic REITs could be adversely affected by failure to qualify for tax-free "pass-through" of distributed net income and net realized gains under the Internal Revenue Code of 1986, as amended ("Internal Revenue Code"), or to maintain their exemption from registration under the Investment Company Act of 1940, as amended ("Investment Company Act"). REITs typically incur fees that are separate from those incurred by the Fund. Accordingly, the Fund's investment in REITs will result in the layering of expenses such that shareholders will indirectly bear a proportionate share of the REITs' operating expenses, in addition to paying Fund expenses. The value of REIT common stock may decline when interest rates rise. REITs tend to be small- to mid-capitalization securities and, as such, are subject to the risks of investing in small- to mid-capitalization securities.

**Futures Contracts** **Risk**<br>Futures contracts are derivative instruments pursuant to a contract where the parties agree to a fixed price for an agreed amount of securities or other underlying assets at an agreed date. The use of such derivative instruments may expose the Fund to additional risks, such as credit risk, liquidity risk, and counterparty risk, that it would not be subject to if it invested directly in the securities underlying those derivatives. There can be no assurance that any strategy used will succeed. There may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes. There also can be no assurance that, at all times, a liquid market will exist for offsetting a futures contract that the Fund has previously bought or sold, and this may result in the inability to close a futures contract when desired. Futures contracts may experience potentially dramatic price changes, which will increase the volatility of the Fund and may involve a small investment of cash (the amount of initial and variation margin) relative to the magnitude of the risk assumed (the potential increase or decrease in the price of the futures contract). Equity index futures contracts expose the Fund to volatility in an underlying securities index. Use of derivatives is a highly specialized activity that can involve investment techniques and risks different from, and in some respects greater than, those associated with investing in more traditional investments. Derivatives can be highly complex and highly volatile and may perform in unanticipated ways.

**Investment Risk**<br>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. 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.

**Issuer Risk**<br>The value of, and/or the return generated by, a security may decline for a number of reasons that directly relate to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services, as well as the historical and prospective earnings of the issuer and the value of its assets.

**Market Risk**<br>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 assets may decline in value simultaneously. Prices in many financial markets have increased significantly over the last decade, 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. The value of a security may decline due to adverse issuer-specific conditions, general market conditions unrelated to a particular issuer, such as changes in interest or inflation rates, or factors that affect a particular industry or industries. 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 and related events have led, and in the future may continue to lead, to instability in world economies and markets generally and reduced liquidity in equity, credit and fixed-income markets, which may disrupt economies and markets and adversely affect the value of your investment. Changes in value may be temporary or may last for extended periods.

Policy changes by the U.S. government and/or Federal Reserve and political events within the U.S. and abroad, such as 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 of a federal government shutdown and threats not 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.

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.

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.

■ Recent Market Events Risk. Both U.S. and international markets have experienced significant volatility in recent months and years. As a result of such volatility, investment returns may fluctuate significantly. Moreover, the risks discussed herein associated with an investment in the Fund may be increased. An outbreak of infectious respiratory illness caused by a novel coronavirus, known as COVID-19, was first detected in late 2019 and has subsequently spread globally. The transmission of various variants of COVID-19, and efforts to contain their spread, have resulted, and may continue to result, in significant disruptions to business operations, travel restrictions and closed borders, and lower consumer demand, as well as general concern and uncertainty that has negatively affected the global economy. Any resurgence of COVID-19, a variant or other significant viruses could negatively impact the Fund and adversely impact the economies of many nations, individual companies and the global securities and commodities markets, including their liquidity, in ways that cannot necessarily

**American Beacon Small Cap Value Fund** - Summary Prospectus**3**

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be foreseen at the present time.<br>Although interest rates were unusually low in recent years in the U.S. and abroad, in 2022, the Federal Reserve and certain foreign central banks began to raise interest rates as part of their efforts to address rising inflation. It is difficult to accurately predict the pace at which interest rates may continue to increase, or the timing, frequency or magnitude of any such increases. Additionally, various economic and political factors could cause the Federal Reserve or another foreign central bank to change their approach in the future and such actions may result in an economic slowdown in the U.S. and abroad. Unexpected increases in interest rates could lead to market volatility or reduce liquidity in certain sectors of the market. Deteriorating economic fundamentals may, in turn, increase the risk of default or insolvency of particular issuers, negatively impact market value, cause credit spreads to widen, and reduce bank balance sheets. Any of these could cause an increase in market volatility or reduce liquidity across various markets. Additionally, high public debt in the U.S. and other countries creates ongoing systemic and market risks and policymaking uncertainty.<br>Some countries, including the U.S., have in recent years adopted more protectionist trade policies. Slowing global economic growth; risks associated with a trade agreement between the United Kingdom and the European Union; the risks associated with ongoing trade negotiations with China; the possibility of changes to some international trade agreements; tensions, war, or open conflict between nations, such as between Russia and Ukraine or in eastern Asia; political or economic dysfunction within some nations, including major producers of oil; and dramatic changes in commodity and currency prices could affect the economies of many nations, including the United States, in ways that cannot necessarily be foreseen at the present time. Russia's military invasion of Ukraine beginning in February 2022, the responses and sanctions by the United States and other countries, and the potential for wider conflict have had, and could continue to have, severe adverse effects on the performance and liquidity of global markets, and negatively affect the value of the Fund's investments. The duration of ongoing hostilities and the vast array of sanctions and related events cannot be predicted. Those events present material uncertainty and risk with respect to markets globally and the performance of the Fund and its investments or operations could be negatively impacted. The recent strength of the U.S. dollar could decrease foreign demand for U.S. assets, which may negatively impact certain issuers and/or industries.<br>Economists and others have expressed increasing concern about the potential effects of global climate change on property and security values. Certain issuers, industries and regions may be adversely affected by the impacts of climate change, including on the demand for and the development of goods and services and related production costs, and the impacts of legislation, regulation and international accords related to climate change, as well as any indirect consequences of regulation or business trends driven by climate change.

**Micro-Capitalization Companies Risk**<br>Micro-capitalization companies are subject to substantially greater risks of loss and price fluctuations, sometimes rapidly and unpredictably, because their earnings and revenues tend to be less predictable. Since micro-capitalization companies may not have an operating history, product lines, or financial resources, their share prices tend to be more volatile and their markets less liquid than companies with larger market capitalizations, and they can be sensitive to changes in overall economic conditions, interest rates, borrowing costs and earnings. The shares of micro-capitalization companies tend to trade less frequently than those of larger, more established companies, which can adversely affect the pricing of these securities and the future ability to sell these securities.

**Mid-Capitalization Companies Risk**<br>Investing in the securities of mid-capitalization companies involves greater risk and the possibility of greater price volatility, which at times can be rapid and unpredictable, than investing in larger-capitalization and more established companies. Since mid-capitalization companies may have narrower commercial markets and more limited operating history, product lines, and managerial and financial resources than larger, more established companies, the securities of these companies may lack sufficient market liquidity, and they can be particularly sensitive to changes in overall economic conditions, interest rates, borrowing costs and earnings.

**Model and Data Risk**<br>Models and data are used to screen potential investments for the Fund. When models or data prove to be incorrect or incomplete, any decisions made in reliance thereon expose the Fund to potential risks. Some of the models used by a sub-advisor are predictive in nature. The use of predictive models has inherent risks. Because predictive models are usually constructed based on historical data supplied by third parties, the success of relying on such models may depend heavily on the accuracy and reliability of the supplied historical data. There is no assurance that the models are complete, accurate, or representative of future market cycles, nor will they always be beneficial to the Fund if they are accurate. Additionally, programs may become outdated or experience malfunctions which may not be identified by the sub-advisor and therefore may also result in losses to the Fund. These models may negatively affect Fund performance for various other reasons, including human judgment, inaccuracy of historical data and non-quantitative factors (such as market or trading system dysfunctions, investor fear or overreaction).

**Multiple Sub-Advisor Risk**<br>The Manager may allocate the Fund's assets among multiple sub-advisors, each of which is responsible for investing its allocated portion of the Fund's assets. To a significant extent, the Fund's performance will depend on the success of the Manager in selecting and overseeing the sub-advisors and allocating the Fund's assets to sub-advisors. The sub-advisors' investment styles may not work together as planned, which could adversely affect the performance of the Fund. In addition, because each sub-advisor makes its trading decisions independently, the sub-advisors may purchase or sell the same security at the same time without aggregating their transactions. This may cause unnecessary brokerage and other expenses.

**Other Investment Companies Risk**<br>To the extent that the Fund invests in shares of other registered investment companies, the Fund will indirectly bear the fees and expenses charged by those investment companies in addition to the Fund's direct fees and expenses. 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:

■ Government Money Market Funds Risk. Investments in government money market funds are subject to interest rate risk, credit risk, and market risk. Interest rate risk is the risk that rising interest rates could cause the value of such an investment to decline. Credit risk is the risk that the issuer, guarantor or insurer of an obligation, or the counterparty to a transaction, may fail or become less able or unwilling, to make timely payment of interest or principal or otherwise honor its obligations, or that it may default completely.

**Quantitative Strategy Risk**<br>The success of the Fund's investment strategy may depend in part on the effectiveness of a sub-advisor's quantitative tools for screening securities. These strategies may incorporate factors that are not predictive of a security's value. The quantitative tools may not react as expected to market events, resulting in losses for the Fund. Additionally, a previously successful strategy may become outdated or inaccurate, which may not be identified by a sub-advisor and therefore may also result in losses.

**Redemption Risk**<br>The Fund may experience periods of high levels of redemptions that could cause the Fund to sell assets at inopportune times or at a loss or depressed value. Heavy redemptions could hurt the Fund's performance. The sale of assets to meet redemption requests may create net capital gains, which could cause the Fund to have to distribute substantial capital gains. Redemption risk is greater to the extent that one or more investors or intermediaries control a large percentage of investments in the Fund. In addition, redemption risk is heightened during periods of declining or illiquid markets. During periods of heavy redemptions, the Fund

**4** **American Beacon Small Cap Value Fund** - Summary Prospectus

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may borrow funds through the interfund credit facility or from a bank line of credit, which may increase costs. The sale of assets to meet redemption requests may create net capital gains or losses, which could cause the Fund to have to distribute substantial capital gains.

**Sector Risk**<br>When the Fund focuses its investments in certain sectors of the economy, its performance may be driven largely by sector performance and could fluctuate more widely than if the Fund were invested more evenly across sectors. Individual sectors may be more volatile, and may perform differently, than the broader market. As the Fund's portfolio changes over time, the Fund's exposure to a particular sector may become higher or lower.

■ Financials Sector Risk. Financial services companies are subject to extensive governmental regulation, which may limit both the amounts and types of loans and other financial commitments they can make, the interest rates and fees they can charge, the scope of their activities, the prices they can charge and the amount of capital they must maintain. Profitability is largely dependent on the availability and cost of capital funds and can fluctuate significantly when interest rates change or due to increased competition. In addition, deterioration of the credit markets generally may cause an adverse impact in a broad range of markets, including U.S. and international credit and interbank money markets generally, thereby affecting a wide range of financial institutions and markets. Certain events in the Financials sector may cause an unusually high degree of volatility in the financial markets, both domestic and foreign, and cause certain financial services companies to incur large losses. Securities of financial services companies may experience a dramatic decline in value when such companies experience substantial declines in the valuations of their assets, take action to raise capital (such as the issuance of debt or equity securities), or cease operations.

**Securities Lending Risk**<br>To the extent the Fund lends its securities, it may be subject to the following risks: (i) the securities in which the Fund reinvests cash collateral may decrease in value, causing the Fund to incur a loss, or may not perform sufficiently to cover the Fund's payment to the borrower of a pre-negotiated fee or "rebate" for the use of that cash collateral in connection with the loan; (ii) non-cash collateral may decline in value, resulting in the Fund becoming under-secured; (iii) delays may occur in the recovery of loaned securities from borrowers, which could result in the Fund being unable to vote proxies or settle transactions or cause the Fund to incur increased costs; and (iv) if the borrower becomes subject to insolvency or similar proceedings, the Fund could incur delays in its ability to enforce its rights in its collateral.

**Securities Selection Risk**<br>Securities selected for the Fund may not perform to expectations. This could result in the Fund's underperformance compared to its benchmark index(es), or other funds with similar investment objectives or strategies.

**Small-Capitalization Companies Risk**<br>Investing in the securities of small-capitalization companies involves greater risk and the possibility of greater price volatility, which at times can be rapid and unpredictable, than investing in larger-capitalization and more established companies. Since small-capitalization companies may have narrower commercial markets, and more limited operating history, product lines, and managerial and financial resources than larger, more established companies, the securities of these companies may lack sufficient market liquidity and they can be particularly sensitive to changes in overall economic conditions, interest rates, borrowing costs and earnings.

**Value Stocks Risk**<br>Value stocks are subject to the risk that their intrinsic or full value may never be realized by the market, that a stock judged to be undervalued may be appropriately priced, or that their prices may decline. Although value stocks tend to be inexpensive relative to their earnings, they can continue to be inexpensive for long periods of time. The Fund's investments in value stocks seek to limit potential downside price risk over time; however, value stock prices still may decline substantially. In addition, the Fund may produce more modest gains as a trade-off for this potentially lower risk. The Fund's investment in value stocks could cause the Fund to underperform funds that use a growth or non-value approach to investing or have a broader investment style.

Fund Performance

The bar chart and table below provide an indication of risk by showing changes in the Fund's performance over time. The bar chart shows how the Fund's performance has varied from year to year. The table shows how the Fund's average annual total returns compare to a broad-based market index, which is the Fund's benchmark index, for the periods indicated.

The chart and the table show the performance of the Fund's Investor Class shares for all periods. In the table below, for the period prior to February 28, 2017, the performance of R6 Class shares reflects the returns of the R5 Class shares of the Fund. The R6 Class would have had similar annual returns to the R5 Class shares of the Fund because the shares of each class represent investments in the same portfolio securities. However, as reflected in the table in the "Fees and Expenses of the Fund" section of this Fund Summary, the expenses of the R5 Class shares differ from those of the R6 Class shares, which would affect performance. The R6 Class performance shown in the table has not been adjusted for differences in operating expenses between the R5 Class shares and the R6 Class shares. C Class shares automatically convert to A Class shares 8 years after purchase, if the conversion is available through your financial intermediary. In the table below, the performance for C Class shares reflects the conversion of C Class shares to A Class shares after 8 years.

You may obtain updated performance information on the Fund's website at www.americanbeaconfunds.com. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

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| | |
|:---|:---|
| **Calendar year total returns for Investor Class Shares.** Year Ended 12/31 | **Calendar year total returns for Investor Class Shares.** Year Ended 12/31 |
| ![](sp2359img002.jpg)<br>| &nbsp;&nbsp;&nbsp; **Highest Quarterly Return:**<br>**33.77%** 4th Quarter 2020<br>01/01/2013 through 12/31/2022<br> **Lowest Quarterly Return:**<br>**-38.48%** 1st Quarter 2020<br>01/01/2013 through 12/31/2022 |

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**American Beacon Small Cap Value Fund** - Summary Prospectus**5**

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**Average annual total returns** for periods ended December 31, 2022

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| | | | | |
|:---|:---|:---|:---|:---|
|  | **Inception Date** **of Class** | **1 Year** | **5 Years** | **10 Years** |
| **Investor Class** | **02/28/1999**<br>|  |  |  |
| Returns Before Taxes |  | -8.06<br> %<br>| 4.74<br> %<br>| 9.05<br> %<br>|
| Returns After Taxes on Distributions |  | -11.48<br> %<br>| 2.47<br> %<br>| 6.87<br> %<br>|
| Returns After Taxes on Distributions and Sales of Fund Shares |  | 2.37<br> %<br>| 3.36<br> %<br>| 6.96<br> %<br>|

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| | | | | |
|:---|:---|:---|:---|:---|
|  | **Inception Date** **of Class** | **1 Year** | **5 Years** | **10 Years** |
| **Share Class** (Before Taxes) |  |  |  |  |
| A | 05/17/2010<br>| -13.44<br> %<br>| 3.41<br> %<br>| 8.31<br> %<br>|
| C | 09/01/2010<br>| -9.78<br> %<br>| 3.91<br> %<br>| 8.33<br> %\*<br> <sup>\*</sup><br>|
| Y | 08/03/2009<br>| -7.83<br> %<br>| 5.00<br> %<br>| 9.33<br> %<br>|
| R6 | 02/28/2017<br>| -7.72<br> %<br>| 5.11<br> %<br>| 9.43<br> %<br>|
| Advisor | 05/01/2003<br>| -8.24<br> %<br>| 4.57<br> %<br>| 8.88<br> %<br>|
| R5 | 12/31/1998<br>| -7.78<br> %<br>| 5.08<br> %<br>| 9.41<br> %<br>|

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\* As noted above, the 10-year performance for C Class shares reflects the conversion of C Class shares to A Class shares after 8 years. If C Class shares were not converted to A Class shares after 8 years, and were instead held for the full 10-year period, performance would have been 8.17%.

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| | | | |
|:---|:---|:---|:---|
|  | **1 Year** | **5 Years** | **10 Years** |
| **Index** (Reflects no deduction for fees, expenses or taxes) |  |  |  |
| Russell 2000® Value Index | -14.48<br> %<br>| 4.13<br> %<br>| 8.48<br> %<br>|

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After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local income taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown. The return after taxes on distributions and sale of Fund shares may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. If you are a tax-exempt entity or hold your Fund shares through a tax-deferred arrangement, such as an individual retirement account ("IRA") or a 401(k) plan, the after-tax returns do not apply to your situation. After-tax returns are shown only for Investor Class shares of the Fund; after-tax returns for other share classes will vary.

Management

**The Manager**<br>The Fund has retained American Beacon Advisors, Inc. to serve as its Manager.

**Sub-Advisors**<br>The Fund's assets are currently allocated among the following investment sub-advisors:

■ Barrow, Hanley, Mewhinney & Strauss, LLC

■ Brandywine Global Investment Management, LLC

■ DePrince, Race & Zollo, Inc.

■ Hotchkis and Wiley Capital Management, LLC

■ Newton Investment Management North America, LLC

Portfolio Managers

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| | | |
|:---|:---|:---|
| **American Beacon Advisors, Inc.** | **Paul B. Cavazos**<br>Senior Vice President & Chief Investment Officer<br>Since 2016<br> **Robyn A. Serrano**<br>Associate Portfolio Manager<br>Since 2021 | **Colin J. Hamer**<br>Portfolio Manager<br>Since 2018<br> **Matt L. Peden**<br>Director of Investments & Portfolio Manager<br>Since 2021 |
| **Barrow, Hanley, Mewhinney & Strauss, LLC** | **James S. McClure, CFA**<br>Portfolio Manager/Managing Director<br>Since 2003<br> **DJ Taylor, CFA, CAIA**<br>Portfolio Manager/Managing Director<br>Since 2022 | **W. Coleman Hubbard, CFA**<br>Portfolio Manager/Managing Director<br>Since 2020 |
| **Brandywine Global Investment Management,** **LLC** | **Henry F. Otto**<br>Portfolio Manager/Managing Director<br>Since Fund Inception (1998)<br> **Michelle K. Bevan,** **CFA**<br>Portfolio Manager<br>Since 2022 | **Steven M. Tonkovich**<br>Portfolio Manager/Managing Director<br>Since Fund Inception (1998) |
| **DePrince, Race & Zollo, Inc.** | **Gregory** **Ramsby**<br>Portfolio Manager <br>Since 2022 | **Randy** **Renfrow**<br>Portfolio Manager <br>Since 2022 |

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**6** **American Beacon Small Cap Value Fund** - Summary Prospectus

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| | | |
|:---|:---|:---|
| **Hotchkis and Wiley Capital Management, LLC** | **David Green**<br>Principal, Portfolio Manager<br>Since Fund Inception (1998) | **Jim Miles**<br>Principal, Portfolio Manager<br>Since Fund Inception (1998) |
| **Newton Investment Management North** **America LLC** | **Joseph M. Corrado**<br>Senior Portfolio Manager<br>Since 2004 | **Andrew Leger**<br>Senior Portfolio Manager<br>Since 2022 |

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Purchase and Sale of Fund Shares

You may buy or sell shares of the Fund through a retirement plan, an investment professional, a broker-dealer, or other financial intermediary. You may purchase or redeem shares of the Fund on any day the New York Stock Exchange ("NYSE") is open, at the Fund's net asset value ("NAV") per share next calculated after your order is received in proper form, subject to any applicable sales charge. The Manager may, in its sole discretion, allow certain individuals to invest directly in the Fund. For more information regarding eligibility to invest directly please see "About Your Investment - Purchase and Redemption of Shares." Direct mutual fund account shareholders may buy subsequent shares or sell shares in various ways:

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| | | |
|:---|:---|:---|
| **Internet** | **www.americanbeaconfunds.com** | **www.americanbeaconfunds.com** |
| **Phone** | **To reach an American Beacon representative call 1-800-658-5811, option 1**<br> **Through the Automated Voice Response Service call 1-800-658-5811, option 2 (Investor Class only)** | **To reach an American Beacon representative call 1-800-658-5811, option 1**<br> **Through the Automated Voice Response Service call 1-800-658-5811, option 2 (Investor Class only)** |
| **Mail** | **American Beacon Funds**<br> **P.O. Box 219643**<br> **Kansas City, MO 64121-9643** | **Overnight Delivery:**<br> **American Beacon Funds**<br> **430 W. 7th Street, Suite 219643**<br> **Kansas City, MO 64105-1407** |

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| | | | |
|:---|:---|:---|:---|
| | **New Account** | **Existing Account** | **Existing Account** |
| <br>**Share Class** | **Minimum Initial Investment Amount** | **Purchase/Redemption Minimum by** **Check/ACH/Exchange** | **Purchase/Redemption Minimum by** **Wire** |
| C | $1000 | $50 | $250 |
| A, Investor | $2500 | $50 | $250 |
| Advisor | $2500 | $50 |  |
| Y | $100000 | $50 |  |
| R5 | $250000 | $50 |  |
| R6 |  | $50 |  |

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Tax Information

Dividends, capital gains distributions, and other distributions, if any, that you receive from 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, Resolute Investment Distributors, Inc., 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.

**American Beacon Small Cap Value Fund** - Summary Prospectus**7**