Bolsa, mercados y cotizaciones
Wall Street slides at open, Wal-Mart drops
The Dow Jones industrial average dropped 145.61 points, or 1.12 percent, to 12,883.65. The Standard & Poor's 500 Index lost 15.53 points, or 1.13 percent, to 1,363.00. The Nasdaq Composite Index fell 35.20 points, or 1.17 percent, to 2,965.25.
(Reporting By Chuck Mikolajczak; editing by Jeffrey Benkoe)