Brazilian stocks climb; Vale to buy back shares By: MarketWatch July 01, 2011 at 15:23 PM EDT Brazilian stocks rise Friday, aiming to snap three-week losing streak, with shares of Vale SA higher following the miner’s $3 billion share repurchase plan. Read More >> Related Stocks: Companhia Siderurgica Nacional ADR Gerdau S.A. ADR Macy's Vale ADR Representing One Ord Shs