[U.S. Stock Market's Three Major Indexes Open Mixed] According to Golden Finance, on April 9, the U.S. stock market's three major indexes opened mixed. The Dow Jones Industrial Average fell 0.14%, the S&P 500 Index rose 0.01%, and the Nasdaq Composite Index rose 0.06%. CoreWeave rose about 2% as the company and Meta announced a $21 billion AI infrastructure expansion agreement.