3X Long Labubu: Once acquired Anthropic at a valuation of 18 billion during the FTX liquidation.

On November 11, X platform U.S. stock trader 3X Long Labubu (@labubu_trader) posted that they acquired shares in Anthropic at an $18 billion valuation during the FTX bankruptcy liquidation sale, jokingly thanking SBF, the "greatest angel investor."

Previously, according to FT, Anthropic's underwriters were preparing to raise the IPO price above the $70–$78 range, potentially pushing the valuation to over $1.5 trillion. By this calculation, it represents an increase of approximately 83 times compared to the $18 billion buy-in valuation.

Public records show that 3X Long Labubu is a Silicon Valley-based AI engineer working on AI inference and training. He trades AI and semiconductor U.S. stocks part-time and specializes in analyzing market structure, leverage, and options liquidity flows. The account has around 77,000 followers on X. The username derives from his collection of Labubu plush toys for his daughter.

For context, FTX and Alameda, under SBF, previously invested approximately $500 million to acquire a stake in Anthropic in 2021. Following FTX's bankruptcy, the estate administrator sold these shares in tranches throughout 2024.