Robinhood CEO expected to testify before Maxine Waters' panel on GameStop

The CEO of online stock brokerage Robinhood is expected to testify before a House committee on Feb. 18 as lawmakers dig into the firm's role in the tumultuous trading of GameStop stock and other companies, people familiar with the matter said.

The hearing before the House Financial Services Committee with Robinhood CEO Vlad Tenev, which has not been formally announced, is primed to be a blockbuster. Share prices of GameStop and other struggling companies skyrocketed last week in part thanks to traders on the social media website Reddit targeting Wall...