In a letter to clients dated August 21, Ken Griffin told investors that his firm, Citadel, has unwound more than 80% of the risk it inherited when it purchased assets from the troubled hedge fund Situational Awareness earlier this year. It was the first time Griffin addressed the acquisition directly.
Citadel has sold off more than $4 billion of the positions it absorbed from Situational Awareness, the AI-focused fund founded by Leopold Aschenbrenner. The scale of the disposal points to how quickly Griffin’s firm moved to reduce exposure after taking on the distressed portfolio at a discount.
Situational Awareness drew attention over the summer after its concentrated bets on artificial intelligence companies turned sharply against it. The fund faced margin calls and a steep drawdown, prompting comparisons to earlier hedge-fund blowups and forcing a rapid unwind of its holdings.
Citadel stepped in to buy the bulk of that stock portfolio at distressed prices, a move that Griffin’s letter now frames as a calculated purchase rather than a rescue. The firm has since worked to trim the inherited risk while retaining a smaller slice of the positions.
The strategy appears to have paid off. Citadel went on to post one of its strongest months in years, helped in part by the discounted assets it acquired and the speed with which it managed them down.
Behind the numbers, the episode shows how a large, diversified firm can absorb a rival’s forced selling and turn it to advantage. Where Situational Awareness was left exposed by concentration and leverage, Citadel had the balance sheet to buy, hold selectively, and sell into recovering markets.
For the broader hedge-fund industry, the sequence offers a cautionary lesson about the risks of narrow, high-conviction wagers on a single theme such as artificial intelligence. Concentrated portfolios can generate outsized returns, but they leave little room to withstand a sudden reversal.
Griffin’s disclosure gives clients a clearer picture of how much residual risk still sits on Citadel’s books, with the bulk now cleared. For investors watching the firm, the remaining question is how the last portion of the inherited positions performs as AI valuations continue to shift.