Itau Unibanco Holding S.A.(*) Announcement to the Market 
 
SAO PAULO, May 11 /PRNewswire-AsiaNet/ -- 
 
                  Standardization of Trading Symbols - ITUB  
  
    As from May 2009, the New York Stock Exchange has authorized listed  
companies to use four letters in their trading symbols (denominated "tickers").  
In the light of this decision, Itau Unibanco Holding S.A. decided to  
standardize the "tickers" on all the stock exchanges where it is listed.   
 
    This measure facilitates comparability in the three capital markets in  
which the company's securities are negotiated and better reflects the merger  
between Itau and Unibanco.  
 
    Itau Unibanco Holding S.A. therefore announces to the market that all  
trading symbols are to be changed simultaneously on all stock exchanges on  
which the company's securities are negotiated, as follows:  
  
                                               Up to May 19     As from May 20  
                                                (inclusive)  
    Non-voting Shares - BM&FBovespa (Brazil)       ITAU4             ITUB4  
    Common Shares - BM&FBovespa (Brazil)           ITAU3             ITUB3  
    ADR's - NYSE (USA)                               ITU              ITUB  
    Cedear's - Merval (Argentina)                  ITAU4             ITUB4  
  
    Sao Paulo (SP), May 11 2009.  
  
    ALFREDO EGYDIO SETUBAL  
    Investor Relations Officer  
  
    (*) The new company name of Itau Unibanco Banco Multiplo S.A., pending  
ratification by the Brazilian Central Bank.  
  
SOURCE: Itau Unibanco Holding S.A.  
 
    CONTACT:  Geraldo Soares,  
              Itau Unibanco Holding,  
              +011-55-11-5019-1549,  
              relacoes.investidores@itau.com.br 
    (ITU)  
 
 __________________________________________________________________________________________