U.S. stocks bounce back, capping a wild week for markets

The major U.S. stock indexes all rose sharply Friday, bouncing back from the previous day's declines. The S&P 500 added 1.4% and the tech-focused Nasdaq Composite Index rose 1.5% as of Friday afternoon. The Dow Jones Industrial Average was up more than 600 points. It was shaping up to be a positive …