Major U.S. stock indexes opened lower Tuesday as higher crude prices, elevated Treasury yields (returns on U.S. government debt) and uncertainty over AI demand restrained investors. The Dow Jones Industrial Average fell 118.0 points, or 0.23%, to 52,303.24. The S&P 500 dropped 7.7 points, or 0.10%, to 7,612.3, while the Nasdaq Composite declined 46.2 points, or 0.18%, to 26,140.227.