Bolsa, mercados y cotizaciones
Wall Street drops at open on economic concerns, oil
The Dow Jones industrial average dropped 151.17 points, or 1.25 percent, to 11,958.50. The Standard & Poor's 500 Index lost 14.45 points, or 1.12 percent, to 1,272.69. The Nasdaq Composite Index slid 33.53 points, or 1.26 percent, to 2,635.66.
(Reporting by Chuck Mikolajczak)