https://www.reuters.com/article/us-retail-trading-gamestop-timeline/timeline-the-gamestop-battle-how-it-unfolded-for-the-key-players-testifying-idUSKBN2AI0IQ >Top executives from hedge funds and the Robinhood trading platform will appear before a U.S. House panel on Thursday to explain how a flood of retail trading drove shares of GameStop and other stocks to extreme highs, squeezing short sellers who had bet against them.