GameStop ($GME) shares have experienced significant volatility over the past few days. On Monday, the stock fell 12% after a 46% drop over the previous two sessions. However, it reversed course on Tuesday, surging 22.8% to close above $30 and was up nearly 16% pre-market. This volatility was influenced by Keith Gill, also known as Roaring Kitty, whose return to YouTube and social media fueled retail investor interest. Gill's position includes 5 million shares and 120,000 call options expiring on June 21, with a total value of $235.46 million. Despite losing $51 million on Monday, Gill's overall position is up 18%. GameStop also completed an at-the-market equity offering, raising $2.14 billion by selling 75 million shares at an average price of $28.49. This brings the company's cash reserves to over $4 billion, with no debt. Citron Research has closed its short position against GameStop, citing the company's strong cash position and the influence of retail investors. A potential short squeeze is also being discussed among investors.