Snapshot · The Twenty Minute VC (20VC): Venture Capital | Startup Funding | The Pitch
Leo Aschenbrenner's AI hedge fund, which once had $45B in assets using 4x leverage, collapsed in a week, with Citadel buying the public book for a reported $16B.
Where this was said
At 17:43 · chapter starts 17:00
Harry sets the scene: Leo Aschenbrenner, the 25-year-old author of the Situational Awareness memo, parlayed his AI notoriety into a $225 million fund that grew to $45 billion in assets — using 4x leverage on high-volatility AI stocks. In the space of a week, it collapsed. Ken Griffin's Citadel swooped in to buy the public book for a reported $16 billion and reportedly made $3 billion on it almost immediately. Rory O'Driscoll's verdict is precise and merciless: directionally correct on the trend, catastrophically wrong on portfolio construction. Four-times leverage on volatile stocks means the probability of a wipe-out isn't just possible, it's mathematically close to inevitable given enough time [1] — Rory O'Driscoll "Leo Aschenbrenner was directionally right about AI — the data still proves it. But 4x leverage on high-volatility stocks means the math of …" 17:20 . Jason asks the right human question: didn't investors know about the leverage? Nikesh offers reassurance — investors who came in on day one are still up enormously. The sting is for those who came in April through June: they likely lost 80–90 cents on the dollar and will be reading their fund docs very carefully. Rory notes the blackly comic board-room conversation: 'We did a hedge fund, but it appears it wasn't hedged.' The long-term prognosis is fine — Larry Fink had a blowup, SoftBank's Masayoshi Son had blowups, Nikesh worked through them all — but the short-term legal dynamics for late investors are ugly. The broader lesson: being right about AI doesn't make you a great portfolio manager.
Leo Aschenbrenner was directionally right about AI — the data still proves it. But 4x leverage on high-volatility stocks means the math of getting wiped out approaches certainty. Being right about the theme and catastrophically wrong about position sizing is its own unique failure mode.
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