“Roaring Kitty” trader returns, causing GameStop shares to jump more than 70% CBS NewsGameStop stock gains more than 70%, gets halted for volatility after ‘Roaring Kitty’ post Yahoo FinanceRoaring Kitty rides again: ‘Gamification’ may be back in GameStop’s meme rally MarketWatchGameStop soars, AMC doubles as ‘Roaring Kitty’ meme trader resurfaces CNBCWatch Are Meme Stocks Back? Bloomberg