Itau Unibanco Holding S.A.(*) Announcement to the Market 
 
SAO PAULO, May 18 /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 18 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,  
               +55-11-5019-1549,  
               relacoes.investidores@itau.com.br 
    (ITU)  
 
 
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