According to Odaily, the securities regulatory authority in Massachusetts, USA, is investigating the trading activity of GameStop. The spokesperson for the authority confirmed that they are looking into the actions of GameStop investor Keith Gill. Previously, on June 3, GameStop's US stock had surged by 110% in pre-market trading.
A post on Reddit had claimed to show that Keith Gill, also known as 'Roaring Kitty', had built a position worth $181 million in GameStop. The investigation is ongoing and further details are yet to be released.