[U.S. Stock Market's Three Major Indexes Open Lower] The three major U.S. stock indexes opened lower collectively, with the Nasdaq down 0.34%, the Dow Jones down 0.25%, and the S&P 500 down 0.24%. Weight-loss drug concept stocks rose broadly, with Novo Nordisk up more than 5% and Eli Lilly up more than 2%. Hims & Hers, which faced lawsuits over generic semaglutide, plunged 22%. Storage concept stocks weakened, with Micron Technology down more than 3%.