Bolsa, mercados y cotizaciones
S&P, Nasdaq climb 1 percent; Merck, Amazon lead
The Dow Jones industrial average gained 102.89 points, or 0.80 percent, to 12,990.82. The Standard & Poor's 500 Index rose 14.42 points, or 1.06 percent, to 1,374.44. The Nasdaq Composite Index climbed 32.19 points, or 1.11 percent, to 2,925.44.
(Reporting by Chuck Mikolajczak; Editing by Kenneth Barry)