U.S. Stock Market Index PerformanceNASDAQ Composite compared to S&P 5001-Jan-20111-Feb-20111-Mar-20111-Apr-20111-May-20111-Jun-20111-Jul-20111-Aug-20111-Sep-20111-Oct-20111-Nov-20111-Dec-20111-Jan-2012S&P 500NASDAQDaily Closing Price300025002000150010005000