Wall St ends lower

U.S. stocks closed slightly down as investors await indications of Federal Reserve moves on expected monetary stimulus curbing.
Dow Jones Average closed at 15,967.03, down 8.99 points, or 0.66 per cent
S&P 500 also slid, losing 3.66 points, or 0.2 per cent, to 1,787.87. 
Nasdaq composite fell 17.51 points, or 0.4 per cent, to 3,931.55.