The $35bn AI Margin Call That Shook Hedge Funds
How the collapse of Leopold Aschenbrenner's Situational Awareness fund exposed the leverage and crowding beneath the 2026 AI rally — and why it matters for markets, quants and regulators.
The $725 Billion Question: Big Tech's AI Spending Just Pushed Stocks to Records — But the Mood Is Shifting
Q2 2026 earnings pushed combined Big Four AI capital spending toward $725 billion, driving the S&P 500, Dow and Nasdaq to record highs. But on August 5 the market wobbled as investors started scrutinizing the sheer scale of the spend.
