(Bloomberg) -- Michael Burry’s bullish stance on GameStop Corp. in 2019 helped lay the foundations for an epic retail-investor frenzy. Now the famed fund manager is warning that the rally has gotten out of hand.“If I put $GME on your radar, and you did well, I’m genuinely happy for you,” Burry, best known for his prescient bet against mortgage securities before the 2008 financial crisis, said in a tweet on Tuesday. “However, what is going on now – there should be legal and regulatory repercussions. This is unnatural, insane, and dangerous.”Read more: How WallStreetBets Pushed GameStop Shares to the MoonBurry, whose investment firm reported owning a 2.4% stake in GameStop as of Sept. 30, said in an email interview on Tuesday that he’s now “neither long nor short.” He declined to comment on when he sold the stock.Burry became a household name after his mortgage trade was featured in “The Big Short.” He helped draw attention to GameStop in mid-2019 after his Scion Asset Management unveiled a 3.3% stake in the beleaguered video-game retailer and urged the company to buy back shares. Burry’s holding has been cited by some of the traders who’ve flooded online forums in recent weeks with posts imploring their fellow punters to buy.GameStop’s 642% surge since Jan. 12 has captivated Wall Street, elicited a tweet from Elon Musk and stymied short sellers including Gabe Plotkin’s Melvin Capital and Andrew Left’s Citron Research. It has also spurred calls for a Securities and Exchange Commission investigation, though legal experts say it’s difficult to prove chat-room posts are part of an illicit scheme to manipulate the market.Burry’s warning has so far done little to dampen retail investors’ enthusiasm: GameStop soared another 95% in pre-market trading as of 4:50 a.m. New York time, on course for another all-time high.(Updates pre-market trading in final paragraph.)For more articles like this, please visit us at bloomberg.comSubscribe now to stay ahead with the most trusted business news source.©2021 Bloomberg L.P.