25-Year-Old Lost $35 Billion of His Investors’ Money. 2 Weeks Later, Silicon Valley Insiders Are Lining Up to Give Him More Cash.
Leopold Aschenbrenner’s AI hedge fund, Situational Awareness, reportedly fell from about $45B in early July to around $10B by late July after margin calls tied to leveraged (up to 400%) concentrated bets in NBIS, SNDK, CRWV and SK Hynix, with shorts including ADBE. The fund says it is not taking new money for now, while deploying $500M into private firms and retaining stakes including Anthropic.
How this was made
The 30-second read
Why it matters
The text frames the event as a leveraged unwind that wiped out about $35B of investor money, followed by insider interest in providing fresh capital, while the fund says it is not accepting new money for now.
Market read
For traders, the actionable element is the positioning and risk narrative around leveraged AI equity exposure and whether the fund reopens to outside capital next quarter; the article does not provide new fundamentals for the companies named.
What to watch
The article does not quantify how much of each stock’s move was driven by this fund versus broader market flows, so attributing causality to NBIS/CRWV/SNDK may be overstated.
Background
Leopold Aschenbrenner’s AI hedge fund, Situational Awareness, reportedly used up to 400% leverage on a concentrated AI-infrastructure equity book, then faced margin calls after late-July AI-linked equities sold off.
Ticker impact
Situational Awareness ran 400% leverage with a long position in Nebius Group, and the fund’s margin calls followed a sharp NBIS drawdown.
Near-term downside pressure is plausible if deleveraging narratives spread, but no new NBIS-specific catalyst is disclosed.
The text provides a concrete NBIS decline window and ties it to collateral calls, but it does not cite new company fundamentals or filings for NBIS.
CoreWeave (CRWV) was among the leveraged AI infrastructure longs that unwound during margin calls after late-July selloff.
Volatility risk may remain elevated for a period, but direction is uncertain without a CRWV-specific new event.
The article gives the position context and the margin-call mechanism, but does not report any CRWV operational or financial update.
SanDisk (SNDK) was part of the concentrated, highly leveraged AI-bets book that triggered margin calls and forced selling.
Short-term sentiment could skew negative if traders extrapolate forced selling, but no SNDK-specific news is provided.
The article names SNDK as a position but does not provide SNDK price moves, disclosures, or a catalyst tied to SNDK itself.
Adobe (ADBE) shorts moved against the fund, contributing to the margin-call cascade described in the article.
No clear directional impact for ADBE is implied because the article does not provide ADBE-specific new information.
The text attributes losses to the fund’s short thesis being wrong, but it does not disclose any ADBE event, filing, or guidance change.
Market effects
Reinforces a broader AI-infrastructure trade risk narrative: high leverage plus concentrated exposure can force correlated selling during drawdowns.
Mentions Korea-listed SK Hynix as part of the leveraged book, but provides no SK Hynix-specific new disclosure.
Highlights how retail copy-trading and margin mechanics can transmit volatility across AI-adjacent equities globally.
Counterpoint
The story may overemphasize the fund’s leverage mechanics; without company-specific catalysts, any spillover into the named stocks could fade quickly.
Key entities
- personLeopold Aschenbrenner
Founder of Situational Awareness, described as running highly leveraged, concentrated AI equity bets that triggered margin calls.
- fundSituational Awareness
AI-focused hedge fund whose leveraged positions in AI infrastructure equities are cited as the driver of the margin-call unwind.
- companyNebius Group
Named long position in the fund’s leveraged book, with a cited drawdown window.
- companyCoreWeave
Named long position in the fund’s leveraged book, implicated in the margin-call unwind.
- companyAdobe
Named short position that moved against the fund during the unwind.




