Which subreddit was central to the 2021 GameStop short squeeze?

The subreddit central to the 2021 GameStop short squeeze was r/wallstreetbets.

The Reddit community became a major gathering place for traders discussing GameStop, whose ticker symbol is GME. Many participants believed the company was undervalued and focused on the unusually high number of shares sold short by institutional investors. When buying pressure pushed the price upward, short sellers had to purchase shares to limit their losses, adding further upward pressure in a classic short squeeze.

The community did not act as a single legally organized investment group, and not every participant bought GameStop. Still, r/wallstreetbets was the subreddit most closely associated with the event. Users including Keith Gill, known online as DeepFuckingValue and Roaring Kitty, helped draw attention to the trade through public posts and videos.

A common mix-up is confusing r/wallstreetbets with r/stocks or r/investing. Those communities also discussed GameStop, but r/wallstreetbets was the central forum connected with the short squeeze and the surrounding meme-stock movement.