SECTION 906 CERTIFICATION CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 Name of Issuer: USAA MUTUAL FUNDS TRUST S&P 500 Index Fund Reward Shares S&P 500 Index Fund Member Shares Total Return Strategy Fund Real Return Fund Shares Real Return Fund Institutional Shares Extended Market Index Fund Nasdaq - 100 Index Fund Ultra Short Term Bond Fund Target Retirement Income Fund Target Retirement 2020 Fund Target Retirement 2030 Fund Target Retirement 2040 Fund Target Retirement 2050 Fund Global Opportunities Fund In connection with the Annual Reports on Form N-CSR/S (Reports) of the above-named issuer for the Funds listed above for the period ended June 30, 2013, the undersigned hereby certifies, that: 1. The Reports fully comply with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and 2. The information contained in the Reports fairly present, in all material respects, the financial condition and results of operations of the issuer. Date: 08/26/2013 /S/ Daniel S. McNamara ---------------- --------------------------------------- Daniel S. McNamara President SECTION 906 CERTIFICATION CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 Name of Issuer: USAA MUTUAL FUNDS TRUST S&P 500 Index Fund Reward Shares S&P 500 Index Fund Member Shares Total Return Strategy Fund Real Return Fund Shares Real Return Fund Institutional Shares Extended Market Index Fund Nasdaq - 100 Index Fund Ultra Short Term Bond Fund Target Retirement Income Fund Target Retirement 2020 Fund Target Retirement 2030 Fund Target Retirement 2040 Fund Target Retirement 2050 Fund Global Opportunities Fund In connection with the Annual Reports on Form N-CSR/S (Reports) of the above-named issuer for the Funds listed above for the period ended June 30, 2013, the undersigned hereby certifies, that: 1. The Reports fully comply with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and 2. The information contained in the Reports fairly present, in all material respects, the financial condition and results of operations of the issuer. Date: 08/23/2013 /S/ Roberto Galindo, Jr. --------------------- ---------------------------------------- Roberto Galindo, Jr. Treasurer