NEW YORK, NY - NOVEMBER 07: Twitter users, including actor Patrick Stewart (R), rings the opening bell at the New York Stock Exchange (NYSE) while also celebrating Twitter's IPO on November 7, 2013 in New York City. Twitter went public November 7, on the NYSE selling at a market price of $45.10, with the initial price being set at $26 on November 6. (Photo by Andrew Burton/Getty Images)
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