
Keith Gill made an initial investment of $53,000 in GameStop in September 2019. He started sharing his GameStop position under the username "DeepF------Value" on Reddit and "Roaring Kitty" on YouTube and other platforms, encouraging a group of retail traders to squeeze out short-selling hedge funds. By April 2021, Gill's investment had grown significantly, and he exercised his call options position to have 200,000 common shares.

Keith Gill's net worth has increased to over $289 million as of the latest update provided in the article. This is a significant increase from the $53,000 bet he placed in GameStop almost five years ago5.

Keith Gill, also known as Roaring Kitty, achieved a significant financial gain of $79 million on a single trading day. This gain was primarily due to his substantial holdings in GameStop, consisting of 5 million shares and 120,000 call options. Gill's influence on the stock price is so significant that his online posts can cause noticeable movements in the market. His initial investment in GameStop started with a $53,000 stake in September 2019, and over time, his net worth has grown to over $289 million. Gill's ability to impact the stock price and his large holdings in GameStop have contributed to his substantial financial gains.