Bolsa, mercados y cotizaciones
Wall St. ends flat ahead of Fed chair's comments
The Dow Jones industrial average rose 18.75 points or 0.12 percent, to end unofficially at 16,198.41. The S&P 500 gained just 0.04 of a point or 0 percent, to close unofficially at 1,845.16. The Nasdaq Composite added 4.477 points or 0.1 percent, to finish unofficially at 4,292.064.
(Reporting by Angela Moon; Editing by Jan Paschal)