Las Vegas Sun - Photograph : Wall Street

January 19, 2018

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Trader Peter Tuchman rests his handheld device on his head as he works on the floor of the New York Stock Exchange Friday, Jan. 31, 2014.

Richard Drew / AP

Trader Peter Tuchman rests his handheld device on his head as he works on the floor of the New York Stock Exchange Friday, Jan. 31, 2014.