Thursday's surge was the latest in a bout of volatile trading in the struggling videogame seller's shares that kicked off last month after the influencer, whose real name is Keith Gill, returned to X.com after a three-year hiatus. The "Roaring Kitty" channel on YouTube on Thursday showed an upcoming livestream scheduled for 12 p.m. ET (1600 GMT) on Friday. Gill was a key player in the 2021 rally in GameStop and other so-called meme stocks that was fueled by individual investors on Reddit's wallstreetbets forum.