US stocks sag as consumer confidence slips

US stocks fell modestly Friday as a key consumer confidence measure came in lower and the government confirmed that the economy contracted in the first quarter. The broad-based S&P 500 shed 13.40 points (0.63 percent) at 2,107.39, while the tech-rich Nasdaq Composite Index fell 27.95 (0.55 percent) at 5,070.03. "The consumer confidence and the Chicago PMI plunged a bit, and I think this is about Greece," said Peter Cardillo of Rockwell Global Capital.