A trader is seen on the floor of the New York Stock Exchange during the opening minutes of trading August 10, 2007, the morning after the market took a 387-point plunge. (Photo by Timothy A. Clary/AFP/Getty Images)
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Trader Louis Spina looks at his trading monitor on the floor of the New York Stock Exchange during the opening minutes of trading on August 10, 2007, the morning after the market took a 387-point plunge. (Photo by Timothy A. Clary/AFP/Getty Images)
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Traders work on the floor of the New York Stock Exchange on September 17, 2008 in New York City. (Photo by Spencer Platt/Getty Images)
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Traders work on the floor of the New York Stock Exchange on October 6, 2008 in New York City. The Dow set a new record for a one day point drop as it tumbled as many as 800 points to below 10,000, the lowest it has fallen since 2004, before closing with a loss of more than 300. (Photo by Spencer Platt/Getty Images)
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A trader rubs his face while working on the floor of the New York Stock Exchange on October 7, 2008 in New York City. Despite a government debt buyout plan, the Dow continued to fall, closing more than 500 points down. (Photo by Mario Tama/Getty Images)
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Traders work on the floor of the New York Stock Exchange moments after the opening bell October 13, 2008 in New York City. Following a rise in global markets, the Dow was up over 400 points in morning trading. (Photo by Spencer Platt/Getty Images)
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A trader works on the floor of the New York Stock Exchange moments after the opening bell on October 27, 2008 in New York City. U.S. stocks fell again Monday morning following steep drops in markets in Asia, Germany and the United Kingdom (Photo by Spencer Platt/Getty Images)
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Traders work on the floor of the New York Stock Exchange on November 5, 2008 in New York City. Worries about the economy still dominate post-election America as the Dow dropped 486 points. (Photo by Spencer Platt/Getty Images)
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Traders work on the floor statue of the New York Stock Exchange (NYSE) on November 10, 2008 in New York City. (Photo by Spencer Platt/Getty Images)
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A trader works on the floor statue of the New York Stock Exchange (NYSE) about an hour after the opening bell on November 10, 2008 in New York City. (Photo by Spencer Platt/Getty Images)
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A trader (L) walks outside the New York Stock Exchange before the closing bell on May 6, 2010 in New York City. The Dow plunged almost 1000 points before closing down 347 on Greek debt fears. (Photo by Mario Tama/Getty Images)
