Telecomunicaciones y tecnología
Wall Street opens flat after rally
The Dow Jones industrial average was up 46.25 points, or 0.36 percent, at 12,950.33. The Standard & Poor's 500 Index was up 4.31 points, or 0.32 percent, at 1,362.35. The Nasdaq Composite Index was down 0.22 points, or 0.01 percent, at 2,959.63.