Topline Shares of video game retailer-turned-social media phenomena GameStop soared Thursday after Keith Gill, the unofficial commander of the meme stock movement, scheduled his first public appearance since he ignited the GameStop rally with his multimillion-dollar bet on the stock. Gill owns five million common shares of GameStop and even more in call options, according to ... [+] unverified posts from his DeepF*ckingValue Reddit account, a position worth well over $100 million. SOPA Images/LightRocket vi ...