CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER AND PRINCIPAL FINANCIAL OFFICER

            PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


In connection  with this report on Form N-CSR for U.S.  Global  Investors  Funds
(the  Registrant)  for the period ended  December 31, 2005,  as furnished to the
Securities and Exchange Commission (the "Report"),  the undersigned  officers of
the Registrant hereby certify, pursuant to Section 906 of the Sarbanes-Oxley Act
of 2002, that to the best of each such officer's knowledge and belief:

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

(2)  the information  contained in the Report fairly  presents,  in all material
     respects,  the  financial  condition  and  results  of  operations  of  the
     Registrant.





By:       /s/ Frank E. Holmes
         -----------------------------------
         Frank E. Holmes
         President, Chief Executive Officer

Date:    March 8, 2006




By:      /s/ Catherine A. Rademacher
         -----------------------------------
         Catherine A. Rademacher
         Treasurer

Date:    March 8, 2006