Bolsa, mercados y cotizaciones
Wall Street opens higher on economy bets, energy
The Dow Jones industrial average gained 24.79 points, or 0.29 percent, to 8,463.18. The Standard & Poor's 500 Index rose 2.03 points, or 0.22 percent, to 920.93. The Nasdaq Composite Index added 4.17 points, or 0.23 percent, to 1,842.39.