Roku plunges 23% after missing earnings

Shares of Roku closed down 23% on Friday, a day after the company reported second-quarter earnings that missed both top and bottom-line estimates.

The company posted earning losses of 82 cents per share and revenues of $764 million, both below consensus estimates, as ad and device sales remain under pressure. Roku also issued a third-quarter forecast that’s $200 million below expectation and said it is withdrawing its full-year growth…