Global stock markets plunged sharply on Thursday as US President Trump's comprehensive tariff plan kicked off a trade war that has widespread implications for the global economy, Internet reported. Public fears of rising prices, slowing economic growth and even the possibility of recession sent U.S. stock indexes tumbling, recording their worst one-day performance since at least September 2022. Apparel and retail companies led the decline, with Williams-Sonoma, Ralph Lauren and Deckers Outdoor all falling more than 17%. Technology and technology retail stocks such as Hewlett-Packard, Best Buy and Garmin all fell at least 15%. Magnificent 7 stocks, which have led the market higher in the past two years, also generally fell, with Apple and Amazon both falling more than 8%. More than 400 stocks in the S & P 500 fell.