[U.S. Stock Market's Three Major Indexes Open Mixed, Microsoft Drops Over 8%] According to Golden Finance, the three major U.S. stock indexes opened mixed: the Dow Jones Index rose 0.08%, the S&P 500 Index rose 0.18%, and the Nasdaq Composite Index fell 0.12%. Following the release of earnings reports in the previous trading session, the stock prices of Microsoft, Tesla, Meta, and IBM dropped 8.7%, rose 1.5%, rose 10.6%, and rose 6.8%, respectively.