Bolsa, mercados y cotizaciones
Wall St. ends lower as AIG and Twitter weigh
The Dow Jones industrial average was down 128.76 points, or 0.78 percent, at 16,401.79. The Standard & Poor's 500 Index was down 16.83 points, or 0.89 percent, at 1,867.83. The Nasdaq Composite Index was down 57.30 points, or 1.38 percent, at 4,080.76.
(Reporting by Ryan Vlastelica; Editing by Nick Zieminski)