Staking out the bull/bear battleground By: MarketWatch February 22, 2011 at 12:19 PM EST The U.S. markets are on the defensive to start the week amid the protracted turmoil in the Middle East. Read More >> Related Stocks: Compania Mina Buenaventura S.A. ADR Embraer-Empresa Brasileira DE Aeronautica ADR Icici Bank Ltd ADR SPDR S&P 500 ETF Trust Synchronoss Technologies Inc Tata Motors Ltd ADR Wyndham Worldwide