Michael Burry is moving up the timeline for his bearish thesis on the AI boom, switching from short positions to put options on key AI-related stocks, multiple outlets reported Monday, citing Burry's Monday investment newsletter.

Burry said he wants more leverage given cheap options tied to low volatility measures like the VIX, adding that "the bubble in AI may burst sooner than later," according to the reports.

He swapped his Micron (MU) short for June puts at a $500 strike price range, replaced his Nebius (NBIS) short with June puts in the "double digit strike price" range, and shifted his SOXX ETF short to September 2027 puts in the "low $400s," the reports said.

He also enlarged his Palantir (PLTR) put position centered at a September 2027 expiration in the "low $100s."

Burry cited Ares Management research on risks tied to unproven AI revenue and comments from Acer's CEO on the return of memory chip cyclicality, according to the reports.