(FILES) This file photo taken on September 11, 2013 shows shows the logo of the social networking website 'Twitter' on a computer screen in London, England. Twitter said on October 26, 2017 it could hit profitability by the end of the year, delivering a stronger-than-expected update which sent its shares sharply higher.Although third quarter results showed ongoing losses and a dip in revenue, the upbeat outlook sparked a pre-market gain of 10.8 percent for Twitter. / AFP PHOTO / Leon NEAL