GameStop stock soars over 70% as ‘Roaring Kitty’ revival reignites meme-stock bonanza Yahoo FinanceGameStop, AMC soar more than 70% each as ‘Roaring Kitty’ meme trader resurfaces CNBCRetail trading is back in a big way: WallStreetBets mod. Yahoo FinanceAMC Theatres Shares Soar 80 Percent After Meme Stock Investor “Roaring Kitty” Resurfaces Hollywood ReporterWho is Roaring Kitty? The GameStop investor announced his return USA TODAY