US futures higher after Pfizer confirms merger bid By: CNBC.com News April 28, 2014 at 05:09 AM EDT U.S. stock index futures pointed to a higher open on Monday, after Pfizer confirmed it had made a second bid for AstraZeneca. Read More >> Related Stocks: Astrazeneca Plc ADR Franklin Resources Oao Gazprom ADR Pfizer Sentinelone Inc Cl A