Itau Unibanco Holding S.A.(*) Announcement to the Market

SAO PAULO - 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.

Geraldo Soares, Itau Unibanco Holding, +55-11-5019-1549, relacoes.investidores at itau.com.br