NASDAQ UNOFFICIALLY CLOSES DOWN 271.14 POINTS, OR 2.33%, AT 11,364.17  S&amp;P 500 UNOFFICIALLY CLOSES DOWN 46.94 POINTS, OR 1.20%, AT 3,852.44  DOW JONES UNOFFICIALLY CLOSES DOWN 176.37 POINTS, OR 0.56%, AT 31,161.78