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 INVESTMENT TRUST

In connection  with the Annual Report on Form N-CSR (Report) of the  above-named
issuer for the fiscal year ended May 31, 2003, the undersigned hereby certifies,
that:

1.    The Report fully complies with the  requirements of Section 13(a) or 15(d)
      of the Securities Exchange Act of 1934; and

2.    The information  contained in the Report fairly presents,  in all material
      respects, the financial condition and results of operations of the issuer.


Date:  JULY 24, 2003                               /S/ CHRISTOPHER W. CLAUS
       -------------                               ------------------------
                                                   Christopher W. Claus
                                                   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 INVESTMENT TRUST

In connection  with the Annual Report on Form N-CSR (Report) of the  above-named
issuer for the fiscal year ended May 31, 2003, the undersigned hereby certifies,
that:

1.    The Report fully complies with the  requirements of Section 13(a) or 15(d)
      of the Securities Exchange Act of 1934; and

2.    The information  contained in the Report fairly presents,  in all material
      respects, the financial condition and results of operations of the issuer.



Date:  JULY 24, 2003                                 /S/ DAVID HOLMES
       -------------                                 ----------------
                                                     David Holmes
                                                     Treasurer