Performance shown is historical and is not indicative of future returns. Investment returns and principal value will vary, and shares may be worth more or less at redemption than at original purchase. Performance shown is as of date indicated, and current performance may be lower or higher than the performance data quoted. To obtain performance as of the most recent month end, click here.

¹The Net Expense Ratio may reflect fees and expenses that American Beacon Advisors has contractually agreed to reduce and/or reimburse through April 30, 2014.

Important Information: Please note that the recent growth rate in the stock market has helped to produce short-term returns that are not typical and may not continue in the future. Indexes are unmanaged and one cannot invest directly in an index.

For any Class of the Fund that began operating within the ten-year/since inception period shown, the performance shown prior to the inception date of the Class is that of a class (or series of classes) previously in operation. The combined returns have not been adjusted for any difference between the fees and expenses of the Class and the historical fees and expenses of the included previous class (or classes). If the previous class(es) had lower expenses, the resulting performance would be better than the Class would have realized during the same period. If the previous class(es) had higher expenses, the resulting performance would be lower than the Class would have realized during the same period. Class C shares may be subject to a contingent deferred sales charge of up to 1% on certain redemptions made within 12 months of purchase. Performance presented at NAV, which does not include these sales charges, would be lower if these charges were reflected. Specific information about any Fund may be found at americanbeaconfunds.com or in the prospectus.

*Annualized.

The Russell Midcap® Growth Index measures the performance of those Russell Midcap® companies with higher price-to-book ratios and higher forecasted growth values.

The S&P 500® Index is a broad based unmanaged index of 500 stocks, which is widely recognized as representative of the equity market in general.

The Lipper Mid-Cap Growth Funds Index tracks the resultsof the 30 largest mutual funds in the Lipper Mid-Cap Growth Funds category. Lipper is an independent mutual fund research and ranking service.

American Beacon Funds and American Beacon Stephens Mid-Cap Growth Fund are service marks of American Beacon Advisors, Inc. Russell Midcap and Russell Midcap Growth Indexes are registered trademarks of Frank Russell Company.

The P/B Ratio of a stock is calculated by dividing the current price by book value per share. The P/E Ratio of a stock is calculated by dividing the current price by forecasted twelve-month earnings 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.

American Beacon Funds and American Beacon Stephens Mid-Cap Growth Fund are service marks of American Beacon Advisors, Inc. Russell Midcap and Russell Midcap Growth Indexes are registered trademarks of Frank Russell Company.