The Zhitong Finance App noticed that after retail “leading brother” Keith Gill showed that his portfolio held a large number of GME.US (GME.US) common shares and bullish options, GameStop's US stock rose more than 90% in the pre-market on Monday. As of press release, the stock had risen 90.8% in the premarket to $44.15.

The Zhitong Finance App noticed that after retail “leading brother” Keith Gill showed that his portfolio held a large number of GME.US (GME.US) common shares and bullish options, GameStop's US stock rose more than 90% in the pre-market on Monday. As of press release, the stock had risen 90.8% in the premarket to $44.15.