Bolsa, mercados y cotizaciones
Wall Street edges up at open; Greece eyed
The Dow Jones industrial average gained 28.83 points, or 0.23 percent, to 12,525.21. The Standard & Poor's 500 Index added 2.85 points, or 0.22 percent, to 1,317.73. The Nasdaq Composite Index rose 1.28 points, or 0.05 percent, to 2,819.89.
(Reporting By Chuck Mikolajczak, editing by Dave Zimmerman)