OREANDA-NEWS. August 16, 2011. BM&FBOVESPA announces that the exercise of options on stocks on Monday in the equities segment generated BRL 2.37 billion, of which BRL 1.43 billion in put options and BRL 936.84 million in call options. The options with the largest volumes in the exercise were:

Vale PNA at BRL 37.07 per share totaled BRL 255.74 million in call options;

Vale PNA at BRL 39.07 per share totaled BRL 220.04 million in call options;

Petrobras PN at BRL 34.91 per share totaled BRL 180.13 million in put options;

Petrobras PN at BRL 24.91 per share totaled BRL 128.56 million in put options;

and  Itauunibanco PN at BRL 30.76 per share totaled BRL 112.03 million in put options.