Stocks headed lower at the open today, thanks to another round of dour corporate earnings. The Dow fell 44 points, while the S&P and Nasdaq dropped 0.9% and 0.8% respectively. Morgan Stanley tumbled more than 8%, after reporting a quarterly loss, and slashing its dividend. Wells Fargo, on the other hand, reported a 52% income jump, but its shares were still off 2%. In a bad sign for consumer credit, Capital One reported a loss, sending shares down 8%. (More stock market stories.)