Mid-Afternoon Market Update: DeVry Remains Up, Copa Holdings Takes a Hit

Toward the end of trading Thursday, the Dow traded down 0.39 percent to 13,932.18 while the NASDAQ fell 0.50 percent to 3,152.18. The S&P also fell, declining 0.35 percent to 1,506.25. Top Headline Making headlines all over the street today was Greenlight Capital's David Einhorn, and his vehement defense of a proposal