Mexico slumps as U.S. consumer data disappoints By: MarketWatch August 14, 2009 at 18:52 PM EDT Mexican and Brazilian shares close lower. Read More >> Related Stocks: Cemex S.A.B. DE C.V. ADR Companhia Siderurgica Nacional ADR Dow Jones Industrial Average (EOD) Gerdau S.A. ADR Petrobras - Petroleo Brasileiro S.A. Vale ADR Representing One Ord Shs