Stock Market Today, Aug. 11: Markets Slip as Oil Prices Rise, Upwork Tumbles on Mixed Earnings

U.S. stock markets declined on August 11, 2026, as elevated oil prices and Middle East tensions weighed on investor sentiment. The S&P 500 fell 0.32%, the Nasdaq Composite dropped 0.60%, and the Dow Jones lost 0.34%. Energy and healthcare stocks led gains while technology stocks struggled. Upwork and Entravision Communications plummeted following disappointing earnings, while Nvidia's $500 billion AI infrastructure financing initiative provided mixed results. Investors await key Consumer Price Index data expected tomorrow.