Overview
- A sharp sell‑off on Thursday erased about $2.5 trillion in market value with the Nasdaq down roughly 5.5%, the S&P 500 falling about 4.4% and the Dow plunging over 1,800 points, and markets only staged a tentative rebound into Monday.
- The immediate trigger was political: Democratic midterm wins and dozens of local votes restricting new data‑center builds, notably in Texas, raised doubts about the pace and cost of AI infrastructure and the revenue outlook for chip and memory suppliers.
- Losses were concentrated in semiconductor and AI‑infrastructure suppliers, where the semiconductor index fell double digits and names such as Micron, Arm and Nvidia led declines, showing how index concentration amplifies shocks for passive investors.
- Credit and financing stress is widening market discrimination as hyperscalers and suppliers issued large amounts of AI‑linked debt in 2026, forcing higher CDS and bond spreads that separate stronger issuers from weaker borrowers.
- Argentina’s sovereign risk has climbed above 900 points, prompting central‑bank dollar purchases and peso support as the Treasury prepares a key rollover auction on Wednesday to refinance heavy 2027 maturities.