In this Thursday, Nov. 7, 2013, file photo, a banner with the Twitter logo hangs on the facade of the New York Stock Exchange in New York the day after the company went public. (AP Photo/Mark Lennihan, File)
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In this Thursday, Nov. 7, 2013, file photo, a banner with the Twitter logo hangs on the facade of the New York Stock Exchange in New York the day after the company went public. (AP Photo/Mark Lennihan, File)
