Stocks set for yet another low start with a wave of earnings ahead

U.S. stock futures fell Tuesday morning following Monday's sharp sell-off. Investors are reacting to Monday evening's earnings and bracing for another wave of corporate earnings today, including five Dow Jones Industrial Average stocks. Monday's sell-off highlighted Wall Street's worries over earnings generally and the financial sector in particular.

Five Dow components are set to report earnings before the bell: Caterpillar (CAT), Coca-Cola (KO), DuPont (DD), Merck (MRK) and United Technologies (UTX).