Live Coverage The S&P 500 was on pace to snap a four-session losing streak Wednesday. Michael M. Santiago / Getty Images Close Major stock indexes mostly rose Wednesday, with investors focused on AI darling Nvidia's highly anticipated quarterly results after the closing bell. The tech-heavy Nasdaq and benchmark S&P 500 advanced 0.4% and 0.2%, respectively, while the blue- chip Dow Jones Industrial Average erased earlier gains and slipped 0.3%. Yesterday, the S&P 500 and Dow both fell for a fourth straigh ...