U.S. stocks tumble on tariff threat

U.S. stocks fell sharply Friday after President Trump threatened a 'massive increase' in tariffs on Chinese imports, with the S&P 500 down 2.7% (183 points) to 6,553, the Dow off 879 points (1.8%) and the Nasdaq losing 3.6%. The selloff, spanning Big Tech to small caps, came as investors reassessed trade risks following China’s rare‑earth export curbs, while a preliminary University of Michigan reading showed consumer sentiment dipping to 55.0 for a third straight monthly decline amid a federal shutdown and a recently cut Fed policy rate.