Roku Stock Has a Lot to Prove This Week

We are in the thick of earnings season, and Roku (ROKU 3.13%) is one of the hundreds of widely followed companies delivering quarterly updates this week. The company behind North America's leading TV streaming operating system will report its fourth-quarter results after Thursday's market close. A lot will be riding on its performance.Roku shares have soared 60% since the company delivered blowout third-quarter results three months ago. All of those gains -- and then some -- came in November with the stock' ...