Nasdaq drops most in 19 months on AI regulation fears

The Nasdaq Composite tumbled into a correction following Democratic wins in Congress that fueled fears of tougher AI regulations. Chipmakers led the market selloff, with Nvidia dropping over nine percent and wiping out trillions in value.

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A futures-options trader works on the floor at the New York Stock Exchange in New York City, US, November 5, 2026. REUTERS/Jeenah Moon

The Nasdaq Composite tumbled 5.52% to 24,315.00 points on Thursday in its deepest one-day drop in 19 months, erasing $3 trillion in market value across United States equities.