Nasdaq falls 3.9% as Democrats' midterm sweep puts AI trade in the crosshairs

The AI trade's biggest risk was never a bubble. It was an election.

On Thursday, Nov. 5, 2026, US tech stocks sold off sharply, one day after a broad rally tied to the Democrats' midterm victory. The Nasdaq Composite fell 3.9% and entered correction territory, more than 10% below a record set the prior month. The S&P 500 dropped 2.8%, and the Dow Jones Industrial Average shed 1,153 points, or 2.2%, erasing most of Wednesday's gains.

The selling hit chip and memory names hardest. SanDisk, Western Digital, AMD, Seagate and Micron each fell around 10%. Broadcom and Nvidia each dropped 6%. The tech-focused Nasdaq 100 fell more than 6% in midmorning trading to a five-month low.

Investors cited fears that a Democratic sweep of both chambers of Congress and key gubernatorial wins could mean more regulation of the AI buildout. That is the repricing: a market that had treated AI investment as a growth engine now sees it as a regulatory target.

The prior day, Wall Street closed sharply higher on the Democrats' victory. The Dow rose 1,569.40 points, or 3%, to 53,356.12. The Nasdaq added 364.50 points, or 1.4%, to 25,736.51. The S&P 500 gained 119.70 points, or 1.6%, to 7,688.62. Most of those gains are now gone.

The Nasdaq had surged almost 40% since Election Day 2024, driven by AI investment. That run made the index vulnerable to any change in the policy outlook. The Fed held its benchmark rate at 3.5%–3.75% at its January 2026 meeting, pausing rate cuts, with strategists expecting one cut in 2026. Rates were not the trigger here.

What specific AI regulations Democrats will pursue, and on what timeline, is not yet known. Whether Thursday's selloff proves a one-day rotation or the start of a deeper correction in AI-linked names is also unresolved. What is clear is that policy risk, not earnings or rates, moved the market this week.