Stocks end tumultuous week on an up note

Updated at 4:11 p.m. ET

A day after dropping more than 1,000 points, the Dow rebounded Friday to close up more than 300 points. But the index lost nearly 5 percent for the week as the markets focused on rising interest rates, inflation and ballooning government debt.

After swinging up and down several times, the Dow Jones industrial average ended the day up 330 points, or 1.4 percent, at 24,191. The broader S&P 500 index closed up 38 points, or 1.5 percent, at 2,620 and the Nasdaq finished up 97 points, or 1.4 percent, at 6,874.

A week ago, the stock market began its dive with a 666-point sell-off after the Labor Department reported that wage growth was picking up. Average hourly wages grew 2.9 percent from a year ago -- the largest increase since 2009. Yields for 10-year Treasurys hit four-year highs.

That sign of inflation has market participants worried that the Federal Reserve will increase interest rates, perhaps more aggressively than the three rate hikes already expected for this year.

"Interest rates are moving higher," NPR's John Ydstie says. The Fed's key rate was "near zero for years. That helped make stocks the only place you could get a decent return on your investment. Now, they're moving higher and investors are concerned they might move higher faster."