[The Three Major U.S. Stock Indexes Open Mixed] The three major U.S. stock indexes opened mixed, with the Dow Jones Industrial Average up 0.10%, the S&P 500 down 0.03%, and the Nasdaq Composite down 0.27%. Most of the Big Tech Seven declined: Amazon fell 0.26%, Tesla fell 0.20%, Apple rose 0.13%, Meta fell 0.54%, Google fell 0.32%, Microsoft fell 0.29%, and Nvidia fell 0.3%.