Andrew Left, the founder of Citron Research, has placed another new bet against the GameStop, $GME, today

Andrew Left, the founder of Citron Research, has placed another new bet against the GameStop, $GME, today

The video-game retailer’s stock price surged as much as 75% on Monday after Keith Gill, an investor and meme stock influencer known as DeepF---ing Value on Reddit, revealed he held five million GameStop shares. In May, Andrew Left had also announced a short position in the company's shares.

"I covered my short from May and then re-shorted it today," Left said in an interview with Bloomberg, noting that his current position is smaller than previous ones, though he didn't disclose its size.

Meme stocks have captivated the stock market again for several weeks, fueled by the return of Gill, who goes by "Roaring Kitty" on X, to social media. Gill gained fame in 2021 by rallying retail traders on Reddit. His June 2 post on Reddit spurred the latest trading frenzy in the struggling video-game retailer's shares.

"He might as well be a hedge fund manager," Left remarked.

Left suffered significant losses during the previous meme stock saga due to a bearish bet on GameStop, impacting Citron Research heavily. His firm has also been involved in a U.S. Justice Department investigation into short selling by hedge funds and research firms.

In early 2021, Left announced that Citron Research would stop publishing short selling research, ending a two-decade-long practice. He has since resumed writing them, though less frequently.

"I don't have any ill will towards the company," Left said. "It's not even a company; it's a trading vehicle."