The Dow Jones Industrial Average is a points-based average, so higher-priced stocks generally hold more sway on the overall ...

The S&P 500 gave up 0.2%, with Pfizer off more than 3%. The tech-heavy Nasdaq composite edged into positive ground with a 0.2 ...

All three major U.S. stock indexes closed lower on Wednesday, led by a 1.8% drop in the Nasdaq Composite, as investors focused on doubts about whether excessive corporate spending on artificial ...