Wall St ends lower

U.S stocks ended a  4-day rally overnight amid new concerns and following fall in oil prices.
Dow Jones Industrial Average closed down 40.27 points, or 0.30 per cent at 13,553.10.
S&P 500 erased 4.58 points, or 0.31 per cent, to close at 1,461.19.
Nasdaq fell 5.28 points, or 0.17 per cent to 3,178.67.
Among the key S&P sectors, materials led the laggards, while health care ended higher.