US futures upbeat after two days of gains; all eyes on Fed By: CNBC.com News March 19, 2014 at 06:09 AM EDT U.S. stock index futures signaled a positive open on Wednesday as fears of military movements in Ukraine receded. Read More >> Related Stocks: Boxx One Year Target Duration ETF FedEx Corp GUESS Genl Mills Jabil Circuit KB Home Sentinelone Inc Cl A Vera Bradley