AI stocks post biggest single-day selloff in months on November 5

According to a November 6, 2026 report by The Next Web, US stocks suffered their sharpest one-day decline in months on Thursday, November 5. Investors pulled back from the chipmakers, cloud providers and power companies that had led much of the market’s gains through the year. The S&P 500 fell 4.4% to close at 7,353.73, marking its biggest single-day drop since the April 2025 “Liberation Day” tariff announcement, which makes roughly 17 months. The report’s headline also refers to a data center controversy rippling through Washington, DC, but the excerpt and summary do not offer any details on that front, so the nature and extent of any policy or political fallout cannot be verified from this material alone. As for what has happened since, nothing is verifiable yet: the coverage provided ends at the November 5 trading session and does not mention any subsequent rebound, official comment, or response from the companies involved. In short, the available reporting establishes that a broad AI-linked selloff took place on November 5 and how far the S&P 500 fell, but leaves open both the driver behind the pullback and the state of the market afterward.