Roku Could Get Lift From Winter Olympics, Amazon Ads

Roku Stock Could Get Lift From Winter Olympics, Amazon Ads | Investor's Business DailyMARKET OUTLOOK: [Investing Pro Says 'Optimism Pays' In Today's Economy]---A Wall Street analyst on Friday upgraded Roku (ROKU) stock to buy from neutral ahead of the streaming video platform's fourth-quarter earnings report next week. Oppenheimer analyst Jason Helfstein said Roku has a host of positive catalysts ahead. And after its recent swoon, Roku stock has an "attractive valuation," he said in a client note. With his ...