a strong performance from roku set to report its firstquarter results after the market closes on thursday would represent a welcome victory for cathie wood’s ark invest don’t hold your breath even with a 7 jump in thursday trading roku stock ticker roku is down 75 in the past 12 months the company which sells devices and offers a platform that allows users to access streaming services has seen its valuation crumble as the pandemic fades broadening the range of entertainment options available to the public rising