MoneyThe story, in brief
How Leopold Aschenbrenner built a $45 billion AI hedge fund — and lost most of it in days
$45 billion. Leopold Aschenbrenner's AI hedge fund lost most of it in days—what spooked the market.
The KeyNews take
Why it matters
A high-profile AI fund implosion signals either a major market shock, fund mismanagement, or both—either way, it's a data point on AI capital allocation and risk. Practitioners and enthusiasts tracking who's winning the AI money race need to know when the bets fail.
The key facts
5 to knowLeopold Aschenbrenner (former OpenAI researcher) founded Situational Awareness hedge fund
Fund peaked at $45 billion in assets
Dramatic decline occurred within days (exact loss % not specified in headline/excerpt)
Date: July 31, 2026
Fund was AI-focused
Go to the source
CNBC Technologycnbc.com
Publisher excerpt: Leopold Aschenbrenner, a former OpenAI researcher-turned-hedge fund manager, saw a dramatic decline this week in his AI-focused fund, Situational Awareness.