US stocks rebounded from early sharp losses but finished down Thursday amid some earnings disappointments, while Apple jumped after it said it was reviewing ways to return some of its $137 billion cash pile to investors. The Dow Jones Industrial Average shed 42.47 points (0.30 percent) at 13,944.05. The S&P 500 index dropped 2.73 points (0.18 percent) to 1,509.39, while the tech-rich Nasdaq Composite fell 3.35 (0.11 percent) to 3,165.13. Trade was lackluster amid some disappointing data showing productivity in the US economy fell in the fourth quarter.