Wall St ends lower

US stocks closed sharply lower in volatile trading after Bank of Japan's latest monetary policy decision disappointed investors.
Dow Jones Industrial Average fell 116.57 points, or 0.76 per cent to close at 15,122.02.
S&P 500 dropped 16.68 points, or 1.02 percent, to end at 1,626.13.
Nasdaq composite fell 36.82 points, or 1.06 per cent to 3,436.95.
All key S&P sectors closed lower, led by banks and energy.