Banco Itau Holding Financeira S.A.
A Publicly Listed Company                               CNPJ. 60.872.504/0001-23



                           Announcement to the Market


                       Trading of Own Shares for Treasury
                                 Month: May 2005


1.   On November 18 2004, in keeping with the best Corporate Governance
     practice, Banco Itau Holding Financeira S.A. (Itau Holding) voluntarily
     disclosed its "Operating Rules for the Trading of Own shares for
     Treasury"("Rules").

2.   Item 2.1.3 of the "Rules" established the obligation to make monthly
     disclosure of the volumes of own shares traded on stock exchanges by Itau
     Holding, and minimum, average and maximum prices.

3.   We inform the capital market entities the prices and the volume traded by
     Itau Holding for transactions in its own shares for treasury during the
     month of May 2005:

                           -----------------------------------------------------
                               Trading             Prices - R$ per Share
                               Volume       ------------------------------------
                                               Minimum      Maximum      Average
     ---------------------------------------------------------------------------
         Common Shares          1,021         370.00        370.00       370.00
     ---------------------------------------------------------------------------
      Preferred Shares            0              -            -            -
     ---------------------------------------------------------------------------

4.   We would remind readers that historical data is available in the
     organization's Investor Relations site (www.itauri.com.br).

                              Sao Paulo-SP, June 6
                                     2005.



                             ALFREDO EGYDIO SETUBAL
                           Investor Relations Officer