The week's biggest winning and losing stocks By: MarketWatch July 16, 2010 at 15:58 PM EDT The following are the S&P 500 (TICKER:SPX) stocks that clocked the best and worst performance for the week ended July 15 Read More >> Related Stocks: Abercrombie & Fitch Company Charles Schwab E Trade Financial Expeditors International,Wash Fastenal Co Fifth Third Bancorp Freeport-McMoRan Gannett Co Goldman Sachs Group Harman International Lincoln National Masco Corp Monsanto Co Standard & Poors 500 SunTrust Banks Weyerhaeuser Co