The stock market influencer responsible for the meme stock frenzy of 2021 has caused a significant increase in the value of GameStop shares, the struggling US videogame retailer. Keith Gill, who is known as Roaring Kitty in online circles, disclosed his $116m (£90.8m) investment in GameStop on Sunday. Gill informed his followers that he holds 1.8% of the company’s available stock…
