Famed meme-stock trader “Roaring Kitty” flopped in a hotly anticipated live YouTube broadcast — failing to stem a selloff in GameStop shares that was sparked by a dismal earnings announcement from the video-game retailer. Meme stock influencer Keith Gill — also known on Reddit under the handle “DeepF—–gValue” — confirmed his position as a major shareholder of GameStop as he posted a chart on a YouTube livestream showing that he owned 5 million shares of the company as well as 120,000 call options. “My aggre ...