US tech stocks plunged on Friday, with the Nasdaq composite falling 2.9% to 25,437.00 and Intel sinking almost 29% for its worst day since 1974. The sell-off was driven by fears that the frenzy around AI has sent prices too high, Intel's profit forecast falling below expectations, and Amazon's latest profit report raising worries about companies' AI spending. The S&P 500 dropped 1.8% to 7,580.07, and the Dow Jones Industrial Average fell 1.1% to 51,770.31. Treasury yields also sank as investors sought safer assets.