Bolsa, mercados y cotizaciones
Wall St. opens up as Alcoa results boost confidence
The Dow Jones industrial average rose 226.7 points, or 1.29 percent, to 17,867.54, the S&P 500 gained 21.89 points, or 1.08 percent, to 2,050.15 and the Nasdaq Composite added 55.65 points, or 1.19 percent, to 4,720.36.
(Reporting by Rodrigo Campos; Editing by Nick Zieminski)