U.S Stocks fall as soaring yields crush tech rally and chip stocks lead brutal slide

Nauman Khan May 19, 2026 1 min read This article first appeared on GuruFocus. U.S. stocks declined on Tuesday as a surge in Treasury yields weighed on technology and consumer-linked shares, while semiconductor stocks led losses across major benchmarks. The S&P 500 fell 0.8% and the Nasdaq Composite dropped 1.1%, extending a three-session losing streak. The 30-year Treasury yield climbed to 5.198%, its highest level in nearly two decades, as inflation concerns tied to energy prices and geopolitical tensions resurfaced, pressuring rate-sensitive assets. Federal Reserve policy uncertainty ahead of leadership transition also added to rate volatility, raising borrowing costs for mortgages and credit. Warning! GuruFocus has detected 3 Warning Sign with WBO:AIR. Is SPY fairly valued? Test your thesis with our free DCF calculator. The Philadelphia Semiconductor Index slipped 1.4%, with investors rotating out of chipmakers ahead of Nvidia earnings, due this week. Qualcomm and Broadcom also retreated as valuation concerns persisted following a recent rally in AI-linked names. The pullback also reflected profit-taking after a strong year-to-date AI-driven rally across semiconductor stocks.