Citadel's three flagship funds delivered exceptional July returns after the firm acquired a distressed portfolio of artificial intelligence stocks from Situational Awareness, the collapsed hedge fund run by former OpenAI researcher Leopold Aschenbrenner. According to reports from Bloomberg, the deal involved Citadel purchasing the leveraged equity portfolio at approximately 10% discount from the distressed fund. The acquisition came after Situational Awareness was forced to unwind many of its positions following a sharp reversal in AI trades that left it bleeding on both sides of its book. The portfolio, valued at approximately $16 billion, was purchased at an estimated 10% discount during what amounted to an overnight fire sale around July 30. The deal also included stakes in Bitcoin mining companies such as Core Scientific, IREN, and Riot Platforms, reflecting Aschenbrenner's thesis that AI and Bitcoin mining infrastructure are converging.
The acquisition transformed Citadel's July performance, with Ken Griffin's flagship Wellington fund rising 5.9% for the month, marking its best monthly performance since 2022 and pushing 2026 gains to 12%. As reported by Bloomberg, the fund had gained only 0.45% in July before the deal, making the remaining 5.45% gain entirely attributable to the AI stock purchase. The tactical trading fund and equities fund both achieved their best month ever, with the tactical fund gaining 11.1% and the equities fund advancing 14.2%. The 5.9% monthly return for Wellington suggests the acquired stocks started recovering almost immediately after the forced selling pressure was removed. Citadel managed about $71 billion in assets as of July 1, making the $16 billion portfolio acquisition a significant strategic move.
Citadel's other two funds significantly outperformed the Wellington fund, with Citadel Equities gaining 14.2% and Tactical Trading adding 11.1% for July. According to figures shared with investors, both funds are positioned near 27% for the year, substantially exceeding their 2025 returns of 14.5% and 18.6% respectively. The performance demonstrates the broad impact of the AI stock acquisition across Citadel's investment portfolio. The firm's tactical trading fund, which is the firm's largest multistrategy fund, gained 11.1% in July and is up 27% for the year. The equities fund advanced 14.2% last month, bringing its 2026 return to 27%, and both funds posted their best month ever. A 10% haircut on a $16 billion portfolio means Citadel effectively got roughly $1.6 billion in immediate paper value just by showing up with liquidity when nobody else would.
The AI sector rout extended beyond Situational Awareness, with multiple well-known hedge funds reporting steep losses in July as AI shares tumbled. According to Bloomberg, Whale Rock Capital Management's flagship tech-focused hedge fund fell 21.7% in July, erasing about half of its gains for the year, while the AI-focused hedge fund run by Altimeter Capital Management tumbled 11% last month. The technology, media and telecom stocks index tracked by research firm PivotalPath fell 10% alone in July, marking the most severe decline among all benchmarks. Until June, such trades had compounded at roughly 25% annually over the past three years, but in July all three sectors plunged steeply. The losses marked a sharp contrast to earlier wins from tech-focused bets, with Whale Rock still returning 35.1% through July and Altimeter up 34% for the year despite July's rout.
Stocks such as Nebius and Micron that Aschenbrenner's fund owned rebounded in the final days of July following the brutal month, with many traders saying the fund's near collapse and rescue move by Citadel was a clearing event that caused short sellers to take profits. Citadel purchased many of the holdings at a significant discount, positioning the firm to benefit as markets rebounded into the month-end. By absorbing such a large portfolio from a forced seller, Citadel effectively removed a major source of downward pressure on AI stocks, an outcome market participants have interpreted as a stabilizing event that could help restore confidence in the sector. The firm has consistently used periods of market dislocation to deploy capital into distressed or forced-selling situations, following its established pattern of acquiring distressed assets from failed funds similar to previous deals with Sowood Capital in July 2007 and Amaranth Advisors in 2006. If Citadel trims or exits its newly acquired mining stakes in the coming weeks, selling pressure on those stocks could weigh on the sector.
