Brazilian stocks lower on U.S., China worries By: MarketWatch July 15, 2010 at 12:44 PM EDT Brazilian stocks extended losses on Thursday as economic data from the United States and China pointed at slowing growth in two key markets for Brazil's exports. Read More >> Related Stocks: Brazil Ishares MSCI ETF Latin America 40 Ishares ETF Mexico Ishares MSCI ETF Petrobras - Petroleo Brasileiro S.A. Vale ADR Representing One Ord Shs