Bolsa, mercados y cotizaciones
Wall St. ticks lower, with eyes on Yellen
The Dow Jones industrial average fell 15.7 points, or 0.1 percent, to 16,320.49, the S&P 500 lost 2.55 points, or 0.14 percent, to 1,869.7 and the Nasdaq Composite dropped 9.309 points, or 0.21 percent, to 4,324.004.
(Reporting by Ryan Vlastelica; Editing by Bernadette Baum)