A worker unveils a floor mat bearing the logo of Twitter and the symbol on which Twitter's stock will traded (TWTR) on the floor of the New York Stock Exchange (NYSE) on November 7, 2013 in New York City. Twitter goes public on the NYSE today, it is expected to open at $26 per share, making the company worth an estimated $18 billion.
{"Image ImageDescription": "NEW YORK, NY - NOVEMBER 07:  A worker unveils a floor mat bearing the logo of Twitter and the symbol on which Twitter's stock will traded (TWTR) on the floor of the New York Stock Exchange (NYSE) on November 7, 2013 in New York City. Twitter goes public on the NYSE today, it is expected to open at $26 per share, making the company worth an estimated $18 billion.  (Photo by Andrew Burton/Getty Images)", "Image Copyright": "2013 Getty Images"}