Citadel Unwinds $4 Billion AI Portfolio After Rapidly Absorbing Distressed Tech Assets

Citadel executed nearly 100 block trades totaling over $4 billion in market value, including some of the year’s largest intraday block trades across 10 different names.
Griffin said Citadel quickly exited the vast majority of the portfolio’s vega risk, helping to save substantial capital in the process.
At end-Q1, Situational Awareness’ publicly disclosed holdings included Nebius Group, SanDisk, Micron and CoreWeave, all down more than 35% before the rebound; the fund had grown to roughly $45 billion by early July, and reports indicated it was negotiating to sell its Anthropic stake.
Analysts described the unwind as a demonstration of Citadel’s ability to absorb distressed assets and rapidly reduce risk amid AI-sector volatility, with accounts noting the cooperation of trading and prime-brokerage teams at the banks serving both firms.
Citadel has unwound more than 80% of the risk from the Situational Awareness portfolio it acquired last month, executing nearly 100 block trades totaling over $4 billion in market value Business Insider. The rapid de-risking came after the AI-focused hedge fund faced margin calls and forced sales on chip and data-center stocks, prompting Citadel's acquisition to absorb the distressed assets.
CEO Ken Griffin said Citadel quickly exited the vast majority of the portfolio's vega risk—a measure of sensitivity to volatility—helping to preserve substantial capital Kansas.com. The move demonstrates how a highly liquid firm can acquire troubled assets and rapidly reduce exposure amid AI-sector turmoil.
Citadel executed almost 100 block trades—some among 2024's largest single-day transactions—to redistribute the Situational Awareness holdings across 10 different stocks Business Insider. These massive transfers allowed the firm to move enormous positions quickly without crashing prices. Banks and prime brokers assisted by facilitating the rapid unwind across multiple securities simultaneously.
Leopold Aschenbrenner's Situational Awareness had grown to roughly $45 billion by early July, but bet heavily on AI chip and data-center stocks Kansas.com. Holdings like Nebius Group, SanDisk, Micron, and CoreWeave all dropped more than 35% before rebounding. Forced sales and margin calls pressured the fund to sell its stake in Anthropic.
Citadel Wellington posted roughly 12% gains year-to-date, with about 6% returns in July alone. The acquisition and rapid de-risking fit Citadel's broader strategy of using superior capital and market access to absorb distressed positions. The unwind shows how trading and prime-brokerage teams coordinated across banks to execute without disrupting broader markets.
The unwind highlights ongoing liquidity strain in AI-related equities as investors reassess overvalued chip and data-center names Miami Herald. Citadel's quick exit—over 80% of risk in weeks—underscores how volatile the sector remains. The move illustrates a playbook other distressed-asset buyers may try to replicate.
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