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NEW YORK, NY - JANUARY 31: Traders work on the floor of the New York Stock Exchange on January 31, 2014 in New York City. As profit returns of Amazon and other retailers disappointed Wall Street, stocks fell on Friday with the Dow Jones industrial average closing down over 140 points. This has been the Dow's worst January since 2009. (Photo by Spencer Platt/Getty Images)
NEW YORK, NY - JANUARY 31: Traders work on the floor of the New York Stock Exchange on January 31, 2014 in New York City. As profit returns of Amazon and other retailers disappointed Wall Street, stocks fell on Friday with the Dow Jones industrial average closing down over 140 points. This has been the Dow's worst January since 2009. (Photo by Spencer Platt/Getty Images)

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    Dow tumbles more than 300 points

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Dow tumbles more than 300 points

The New York Stock Exchange suffered its worst one-day loss of 2014, falling 326 points in Monday's trading.

Dow tumbles more than 300 points

The New York Stock Exchange suffered its worst one-day loss of 2014, falling 326 points in Monday's trading.