Securities of the Fund may only be sold by offering the Fund’s Prospectus and Summary Prospectus. You should consider the investment objectives, risks, charges and expenses of the Fund carefully before investing. The Prospectus and Summary Prospectus contains this and additional information regarding the Fund. To obtain a Prospectus and Summary Prospectus, please contact your Financial Advisor, call 1-800-967-9009 or visit www.americanbeaconfunds.com. The Prospectus and Summary Prospectus should be read carefully before investing.

IMPORTANT INFORMATION:
Performance shown prior to the 5/1/03 inception of the Advisor Class is that of the Investor Class from 4/1/99 through 4/30/03. The returns have not been adjusted for any difference between the fees and expenses of the Advisor Class and the historical fees and expenses of the Investor Class. Because the Investor Class had lower expenses, their performance was better than the Advisor Class would have realized during the same period. A portion of the fees charged to the Advisor Class of the Fund was waived through 2004. Performance prior to waiving fees was lower than the actual returns shown for periods through 2004. Performance shown prior to the 5/1/09 inception of the Retirement Class is that of the Advisor Class from 5/31/2003 through 4/30/2009 and the Investor Class prior to 5/31/2003. The returns have not been adjusted for any difference between the fees and expenses of the Retirement Class and the historical fees and expenses of the Advisor and Investor Classes. Because the Advisor and Investor Classes had lower expenses, their performance was better than the Retirement Class would have realized during the same periods. Performance shown prior to the 8/3/09 inception of the Y Class is that of the Institutional Class. The returns have not been adjusted for any difference between the fees and expenses of the Y Class and the historical fees and expenses of the Institutional Class. Because the Institutional Class had lower expenses, its performance was better than the Y Class would have realized during the same period. * Annualized. ** The Lipper Small-Cap Value Funds Index tracks the results of the 30 largest mutual funds in the Lipper Small-Cap Value Funds category. Lipper is an independent mutual fund research and ranking service. *** The Russell 2000 Value Index is an unmanaged index of those stocks in the Russell 2000 Index with lower price-to-book ratios and lower forecasted growth values. The P/E Ratio of a stock is calculated by dividing the current price by forecasted twelvemonth earnings per share. The P/B Ratio of a stock is calculated by dividing the current price by book value per share. R-squared (R2) is the percentage of the Fund’s three-year return that is explained by movements in its benchmark index. Alpha is a measure of the Fund’s expected performance versus the benchmark, adjusted for relative risk. Beta is a measure of the Fund’s volatility versus the benchmark. Sharpe Ratio is a measure of the Fund’s return per unit of total risk. Standard Deviation is a measure of the historical volatility of the Fund’s returns.

Distributed by Foreside Fund Services, LLC. American Beacon Funds and American Beacon Small Cap Value Fund are service marks of American Beacon Advisors, Inc. Russell 2000 and Russell 2000 Value Indices are registered trademarks of Frank Russell Company. There is no guarantee that the investment objectives will be met. Indices are unmanaged and one cannot invest directly in an index. Investing in the securities of small capitalization companies involves greater risk and the possibility of greater price volatility than investing in larger capitalization and more established companies