Balanced Fund

Institutional Class

Y Class

Investor Class

Advisor Class

Treasury Inflation Protected Securities Fund

Institutional Class

Y Class

Investor Class

Supplement Dated September 15, 2010

To the Prospectus dated March 1, 2010

 as Amended May 4, 2010 and

as Supplemented on July 29, 2010 and May 19, 2010

The American Beacon Balanced Fund now pays dividends quarterly.  Therefore, in the “Distributions and Taxes” section on page 75 of the Prospectus, the following rows in the table after the first paragraph are hereby changed to:

Fund	Dividends Paid
Balanced	Quarterly
Treasury Inflation Protected Securities	Semi-Annually

PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE