Bolsa, mercados y cotizaciones
Wall Street opens down as Ukraine tensions mount
The Dow Jones industrial average fell 106.22 points, or 0.65 percent, to 16,215.49, the S&P 500 lost 13 points, or 0.7 percent, to 1,846.45 and the Nasdaq Composite dropped 50.86 points, or 1.18 percent, to 4,257.259.
(Reporting by Chuck Mikolajczak; Editing by Bernadette Baum)