Wall St ends mixed

U.S. stocks closed overnight mixed amid concerns over employment data due this Friday.
Dow Jones Industrial Average closed mixed overnight, down by 10.75 points, or 0.08 per cent at 13,268.57.
S&P 500 ended at 1,402.31, down 3.51 points, or 0.25 per cent.
Among the key S&P sectors, energy led the laggards, while consumer discretionary closed higher.
Nasdaq composite gained 9.41 points, or 0.31 per cent at 3,059.85.