NASDAQ UNOFFICIALLY CLOSES DOWN 1,072.37 POINTS, OR 4.00 PERCENT, AT 25,758.58 DOW JONES UNOFFICIALLY CLOSES DOWN 628.75 POINTS, OR 1.22%, AT 50,933.18 S&P 500 UNOFFICIALLY CLOSES DOWN 193.72 POINTS, OR 2.55 PERCENT, AT 7,390.59