Wall St ends down

Wall St closed down on renewed concerns over Greece,slowing growth in China which overshadowed improved U.S.econ.data
The Dow Jones Industrial Average lost 14.76 points, or 0.11 per cent, to close at 12,962.81.
The S&P 500 dropped 5.30 points, or 0.39 per cent to end at 1,364.33.
Among the key 10 S&P sectors, materials and techs ended lower, while consumer staples gained.
The Nasdaq fell 25.71 points, or 0.86 percent, to end at 2,950.48, its biggest drop this year.