Tech crash alert: $1.5 trillion lost from US stock market in just 48 hours Nasdaq, S&P 500, Dow fall as rate cut hopes fade

US stock market crash today: Wall Street witnessed a massive $1.5 trillion market value erosion in tech giants over two days. Investor sentiment soured as hopes for a December Federal Reserve interest rate cut faded, pushing the next expected reduction to March. AI-focused stocks, including Nvidia and Palantir, led the sharp selloff despite strong earnings, raising concerns about valuations.