Wall St ends down

U.S. stocks closed lower near session lows, with Dow Jones posting another triple-digit loss amid global economic growth concerns and expected lower corporate earnings.
Dow Jones Industrial Average fell 128.56 points, or 0.95 per cent, to close at 13,344.97
S&P 500 lost 8.92 points, or 0.62 per cent at 1,432.56.
Most key S&P sectors finished in the red, led by energy and materials.
Nasdaq fell 13.24 points, or 0.43 per cent, to end at 3,051.78. Both the S&P and Nasdaq fell for the fourth-straight session.