
Shares in video game retailer GameStop surged as much as 118% on Monday after meme stock investor "Roaring Kitty" posted a cryptic image on X, his first post in about three years.
Roaring Kitty is the online screen name of investor Keith Gill, who became instrumental in creating a trading frenzy behind GameStop and movie theater chain AMC, leading to massive rallies in those stocks in 2021.