Bolsa, mercados y cotizaciones
Wall Street opens flat on investor caution
The Dow Jones industrial average slipped 1.51 points, or 0.01 percent, to 12,196.37. The Standard & Poor's 500 Index fell 0.59 point, or 0.05 percent, to 1,309.60. The Nasdaq Composite Index edged down 2.31 points, or 0.08 percent, to 2,728.37.
(Reporting by Chuck Mikolajczak; Editing by Kenneth Barry)