U.S. stocks fell, after the best start to a year for the Standard & Poor’s 500 Index since 1997, as investors weighed earnings and economic reports while awaiting tomorrow’s jobs data.

United Parcel Service fell 2% after it forecast profit that trailed estimates as a weak global economy weighs on demand for package shipments. Dow Chemical Co. slid 5.5% after earnings missed forecasts as sales fell in Europe. Facebook lost 3% as profit dropped on higher spending.