Bolsa, mercados y cotizaciones
S&P 500 opens flat after three-day decline
The Dow Jones industrial average was down 27.81 points, or 0.17 percent, at 16,218.06. The Standard & Poor's 500 Index was down 1.79 points, or 0.10 percent, at 1,843.25. The Nasdaq Composite Index was up 4.00 points, or 0.10 percent, at 4,083.75.
(Reporting by Ryan Vlastelica; Editing by Nick Zieminski)