Wall Street Suffers Historic Selloff as S&P 500 Plunges 4% on AI Regulation Fears

Wall Street experienced a historic selloff on Thursday, two days after the US midterm elections, with the S&P 500 plunging 4.3 percent and erasing roughly $3 trillion in market value, the largest single-day loss ever recorded. The Nasdaq fell 5.5 percent, entering a correction more than 10 percent below its record high, while the Dow Jones dropped 3.4 percent, wiping out the previous day's 1,500-point gain. The Nasdaq 100 suffered its worst day since the pandemic, sliding 6.4 percent. The crash was triggered by the Democrats' unexpectedly strong showing in the elections, fueling fears they may slow AI infrastructure expansion. Opposition to data centers was a central campaign issue, driving investor concerns.