S&P 500 has its worst week since June after Thursday’s rout
The S&P 500 closed at 7,376.86 on Friday 6 November, down 2.7% for the week, after a 4.4% fall on Thursday that erased about $3tn of value. Credit default swaps on CoreWeave and SpaceX reached records.
Source published · In the Weekly Review of 8 November 2026
Filed under Markets
Thursday’s fall was concentrated in AI stocks. The Nasdaq 100 dropped 6.36%, AMD and Micron each lost about 17% and the VIX volatility index jumped as much as 70% on Thursday, a move seen only eight times since 1991, according to Cboe data cited by Yahoo Finance. Vanda Research recorded the heaviest retail selling since March 2020, and Reuters reported record credit default swap spreads on CoreWeave and SpaceX. The selling spread to Asia on Friday, when the Kospi briefly halted trading.
Friday’s rebound was partial. The S&P 500 rose 0.31% and the Nasdaq 1.09%, while the Dow lost 0.46% to 51,285.73. Technology and energy stocks, both tied to the AI build-out, fell 7% and 11% for the week.