How Leopold Aschenbrenner built a $45 billion AI hedge fund — and lost most of it in days
Leopold Aschenbrenner, a former OpenAI researcher-turned-hedge fund manager, saw a dramatic decline this week in his AI-focused fund, Situational Awareness.

Leopold Aschenbrenner, a former OpenAI researcher-turned-hedge fund manager, saw a dramatic decline this week in his AI-focused fund, Situational Awareness.
President Donald Trump said the U.S. hasn't agreed to grant Ukraine licenses to produce Patriot missile systems.
Trimmed mean measures are painting a different picture than the headline numbers.
Investors saw Warsh’s press conference as dovish, but a closer reading of the Fed chair's prepared remarks suggests he may be close to raising interest rates.
UEFA and Concacaf's rejection of FIFA's plan to sell a 20% stake in the World Cup's commercial operations highlights uneasiness with private equity in sports.
Fintech brokerage Clear Street is launching a private markets platform, beginning with Databricks stakes, to give investors more access to late-stage startups.
Options traders and market makers in Chicago were quick to buy dips below 7,500 in the benchmark index Friday, but almost as quick to sell rallies above that level.
Sony and Marvel's "Spider-Man: Brave New Day" is expected to haul in around $270 million domestically over its debut weekend.
Hundreds of thousands of student loan borrowers are eligible for debt cancellation under a $23 billion class-action settlement against the federal government.
The prices for used electric vehicles have risen this year, which is unusual, experts said. Affordability and high gas prices help explain why, they said.
Bond market investors may want to focus on the front of the yield curve, according to Allspring Global Investments’ Noah Wise.
Amazon, Alphabet and Tesla all reported negative cash flow in the latest quarter, while Meta's cash generation plummeted by 91%.
Kashkari and Hammack joined Dallas Fed President Lorie Logan in dissenting against holding the Fed's key overnight borrowing rate steady.
The senators asked the Departments of Commerce, Defense, Energy, Interior and the Export-Import Bank to preserve all records related to those deals.
Following Microsoft's (MSFT) Q4 earnings and record-setting appreciation, the immediate binary event risk is officially behind us.
ExxonMobil and Chevron on Friday reported second-quarter profits that surged on rising oil prices due to the Iran war.
General Motors plans to launch a proprietary in-vehicle artificial intelligence system that's better tailored for its customers later this year.
Every weekday, the Investing Club releases the Homestretch; an actionable afternoon update just in time for the last hour of trading.
The food delivery company is the latest to be asked to share details of AI use by two House committee conducting a joint investigation.
With the rise of secondary markets and a stronger liquidity environment, more companies are choosing to stay private for longer, according to experts.
It comes after a federal judge earlier this month denied Kalshi's attempts to intervene against the state's Gaming Commission.
The experimental medicine ziltivekimab didn't translate into a statistically meaningful reduction in major cardiovascular adverse events, Novo said Friday.
Anthropic said it discovered three instances where its Claude AI models accessed the internet during an evaluation and accessed outside systems.
Leonardo is eyeing further M&A as it races to expand capabilities and meet surging defense demand after raising its 2026 outlook.