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Leopold Aschenbrenner's Situational Awareness fund has drawn Jane Street's…

Brief

Leopold Aschenbrenner's Situational Awareness fund has drawn Jane Street's capital after a breakout performance: roughly +270% after fees year-to-date through May 2026 and over +1,000% since inception. Assets under management exceed $20 billion, with an Anthropic position making up about one-fifth of the fund.

Source evidence

Jane Street invested in Leopold Aschenbrenner's Situational Awareness fund which is now up by 270%.

Negligible Capital (@negligible_cap)

Jane Street's invested in Situational Awareness, which has now seen AUM increase to over $20B. Leopold's investment in Anthropic also accounts for about 20% of their assets.

"Situational Awareness has gained about 270% after fees this year through May and is up more than 1,000% after fees since inception, one of the people said. One of the fund's most successful bets is a stake in Anthropic that today accounts for about one-fifth of its assets, the person said.

Its investors now include Jane Street, the savvy quant-trading firm that ranks among Wall Street's most profitable, some of the people said. Jane Street's investment in Situational Awareness is particularly notable because the firm rarely allocates capital to outside money managers."

— https://nitter.net/negligible_cap/status/2064000126704558160#m