OREANDA-NEWS. August 17, 2011. BM&FBOVESPA announces the second preview of the Ibovespa Index theoretical portfolio that will be valid for September 5 to December 29, 2011, based on the closing of the August 15, 2011 session. This preview brings the inclusion to the portfolio of common shares in BR Malls, bringing the total to 67 stocks in 62 companies.

The five stocks with the heaviest weight in the index were: Petrobras PN (9.952%), Vale PNA (9.460%), OGX Petroleo ON (5.275%), Itauunibanco PN (4.356%) and BMFBOVESPA ON (3.491%).

For purposes of comparison, the stocks with the heaviest weight in the Ibovespa portfolio for May 2 to August 31, 2011 were: Vale PNA (10.346%), Petrobras PN (10.201%), OGX Petroleo ON (4.878%), Itauunibanco PN (4.127%) and BMFBOVESPA ON (3.693%).

BM&FBOVESPA regularly announces the previews of the new indexes thus: the first preview during the first trading session of the final month of the standing portfolio, the second preview in the session following the15th of the final month of the standing portfolio and the third preview during the last trading session of the standing portfolio. The Exchange also announces the second previews of the other indexes.