Wall Street ends lower as Caterpillar, health stocks weigh
The Dow Jones industrial average fell 78.57 points, or 0.48 percent, to 16,201.32, the SP 500 lost 6.52 points, or 0.34 percent, to 1,932.24 and the Nasdaq Composite dropped 18.27 points, or 0.38 percent, to 4,734.48.