Leopold Aschenbrenner’s AI hedge fund Situational Awareness sells its public stock book to Citadel after July AI-stock rout
Partly confirmed
Status
- Claim
Partly confirmed
- Our reporting
- Medium confidence
- Importance
- 3 of 5
- Last verified
- 3 October 2026
Your AI and this story
- GPT-6 Astra91 days after its cutoff
- Claude Opus 5.530 days after its cutoff
- Gemini 4 Hydrogen121 days after its cutoff
- Grok 4.760 days after its cutoff
None of these four assistants can know about it. The closest, Claude Opus 5.5, stops 30 days before it.
Key facts
- CNBC (2026-07-30): fund forced to unwind all public stock positions after steep AI losses; CNBC (2026-07-31): ‘$45B to fire sale’
- WSJ via Yahoo Finance (2026-07-30): Citadel bought the bulk of the listed holdings; Millennium also bid; price not disclosed
- Reported leverage of up to ~4x (400%); the public book sold was estimated at roughly $16B; assets after the sale about $10B (reports differ: WSJ put peak AUM at ‘more than $20 billion’, CNBC at $45B)
- Strategy: long memory chips, data centers and power (SK Hynix, Sandisk, Micron, CoreWeave, Nebius, IREN, Core Scientific, Bloom Energy), short software exposed to AI disruption
- Before July: >1,000% since inception (WSJ, June) and a reported 439% net in H1 2026
- Private positions such as Anthropic were not part of the sale
- Aug 24, 2026: Bloomberg reported (people familiar) that the SEC subpoenaed Goldman Sachs, JPMorgan, Citigroup and Bank of America for the timing of the fund’s trades, its leverage and its communications with lenders, and told them to preserve records; Situational Awareness responded in a statement (via Disruption Banking)
What happened
A fund built directly on the “AGI is coming, buy the compute supply chain” thesis grew very fast on leverage. It unwound in one block trade when AI-infrastructure stocks fell sharply in July 2026, the same month as the OpenAI–Hugging Face incident.
Why it matters
It was the biggest market casualty of the AI-infrastructure trade so far, and a sign of how much capital was riding on short AGI timelines. Reports say AI stocks rose once the forced seller was gone, so it was a leverage event more than a verdict on AI. AUM figures differ between outlets (gross exposure vs net assets); treat all headline numbers as approximate.
Sources
7 sources from 5 sites. Numbers match the chips in the text.
7 sources: 6 press, 1 reaction
Press
- Disruption Banking: Did Situational Awareness’s crash pull Wall Street banks into an SEC probe? (citing Bloomberg, Aug 24)disruptionbanking.com, press
- CNBC - Aschenbrenner forced to unwind all public stock positions after steep losses (2026-07-30)cnbc.com, press
- CNBC - Situational Awareness fund: $45B to fire sale (2026-07-31)cnbc.com, press
- Yahoo Finance / WSJ - Citadel buys bulk of Situational Awareness portfoliofinance.yahoo.com, press
- CNBC - Filing shows AI bets before forced sale to Citadel (2026-08-14)cnbc.com, press
- Quartz - AI hedge fund collapses after margin callsqz.com, press
Reactions
- Wikipedia - Leopold Aschenbrenneren.wikipedia.org, discussion
Changes
- SEC subpoena report traced to Bloomberg (Aug 24) via Disruption Banking
- Filed
