
U.S. stocks closed slightly higher in volatile trading, following comments from Federal Reserve Chairman Ben Bernanke that monetary policy will remain highly accommodative.
Dow Jones Industrial Average edged up 18.67 points to close at 15,470.52.
S&P 500 rose 4.65 points to end at 1,680.91. And the Nasdaq added 11.50 points to finish at 3,610.
Most key S&P sectors ended in positive territory, led by materials, while utilities lagged.