RALLY AT RISK: Stocks fell for a third straight day Tuesday. The Dow Jones industrial average is down 1 percent so far this week, putting at an eight-week winning streak at risk.
AUTOMAKERS DROP: Ford and General Motors fell around 3 percent despite generally good sales reports for November.
THE NUMBERS: The Dow lost 94.15 points, or 0.6 percent, to 15,914.62. The Standard & Poor's 500 index fell 5.75 points, or 0.3 percent, to 1,795.15 and the Nasdaq composite fell 8.06 points, or 0.2 percent, to 4,037.20.