Bolsa, mercados y cotizaciones
Wall St opens flat as data offsets Caterpillar
The Dow Jones industrial average was down 3.63 points, or 0.03 percent, at 11,981.81. The Standard & Poor's 500 Index fell 0.24 points, or 0.02 percent, at 1,296.39. The Nasdaq Composite Index was up 6.26 points, or 0.23 percent, at 2,745.76.