Specialist Patrick Kelly, left, directs trading at his post on the floor of the New York Stock Exchange Tuesday, Jan. 8, 2013. U.S. stocks opened mostly lower Tuesday as traders awaited the start of U.S. corporate earnings season. (AP Photo/Richard Drew)

Associated Press
Specialist Patrick Kelly, left, directs trading at his post on the floor of the New York Stock Exchange Tuesday, Jan. 8, 2013. U.S. stocks opened mostly lower Tuesday as traders awaited the start of U.S. corporate earnings season. (AP Photo/Richard Drew)
Specialist Patrick Kelly, left, directs trading at his post on the floor of the New York Stock Exchange Tuesday, Jan. 8, 2013. U.S. stocks opened mostly lower Tuesday as traders awaited the start of U.S. corporate earnings season. (AP Photo/Richard Drew)
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