Bolsa, mercados y cotizaciones
Wall St opens lower on profit taking
The Dow Jones industrial average dropped 44.22 points, or 0.52 percent, to 8,428.18. The Standard & Poor's 500 Index fell 4.21 points, or 0.46 percent, to 916.05. The Nasdaq Composite Index lost 9.84 points, or 0.54 percent, to 1,819.70.