Dow Jones Reverses Lower Ahead Of Fed Meeting; Caterpillar, Exxon, Pfizer, McDonald's Fall On Earnings

Dow Jones Reverses Lower Ahead Of Fed Meeting; Caterpillar, Exxon, Pfizer, McDonald's Fall On Earnings

The Dow Jones reversed lower Tuesday, as the Fed's two-day meeting kicks off today. Caterpillar, Exxon and Pfizer dropped on earnings.