Stocks open higher ahead of ISM manufacturing report By: CNBC.com News April 01, 2014 at 09:30 AM EDT Stocks opened higher on the first trading day of the second quarter, extending gains from the previous session, ahead of the ISM manufacturing report. Read More >> Related Stocks: CarMax General Motors Global Payments Inc Monsanto Co Nokia Corp ADR Sentinelone Inc Cl A Twitter, Inc.