Shares of TV streaming company Roku Inc (NASDAQ: ROKU) are on a run after the release of third-quarter results. The stock has more than doubled over three sessions. Roku's Fundamentals Roku said in its S-1 IPO filing that it's the No. 1 TV streaming platform in the U.S. based on the total hours streamed, citing data from a study it commissioned. Roku gets the bulk of its revenues from sales of its streaming players and Roku TVs. Additionally, it derives platform revenues from advertisers and subscription revenue share on its platforms. Read moreSeems like the upside is over. $ROKU, Roku, Inc. / H1