U.S. stock index futures pointed to a higher open Tuesday, looking to add to gains from the previous session, with the Institute for Supply Management (ISM) manufacturing survey for March in focus.
Companies are making headlines after the bell Tuesday:
CNBC's Melissa Lee, Herb Greenberg and Dominic Chu dissect the numbers on Apollo Group, Cree Inc., and Panera Bread.
What to expect from the earnings data of Apollo Group, Caterpillar and Panera, with CNBC's Dominic Chu, Herb Greenberg and Mary Thompson.