OREANDA-NEWS. February 25, 2011. BM&FBOVESPA hereby announces that Monday’s exercise of stock options in the Bovespa segment turned over BRL 2.29 billion, of which BRL 1.5 billion in call options and BRL 292.57 million in put options. Below are the options that had the highest financial volumes in today’s exercise:

CSNA ON at BRL 34.50 per share turned over BRL 273.2 million in put options;

CSNA ON at BRL 33.50 per share turned over BRL 265.38 million in put options;

Petrobras PN at BRL 25.71 per share turned over BRL 218.2 million in call options;

VALE PNA at BRL 47.73 per share turned over BRL 201.8 million in call options; and

Petrobras PN at BRL 23.71 per share turned over BRL 189.4 million in call options.