Boeing, PepsiCo in focus ahead of Wall Street open By: CNBC.com News July 23, 2014 at 05:27 AM EDT U.S. stock index futures signaled a flat-to-higher start to trade on Wednesday, with earnings due early in the day from Boeing and PepsiCo. Read More >> Related Stocks: Apple Biogen Idec Boeing Co Delta Air Lines Genl Dynamics Microsoft Norfolk Southern Northrop Grumman PepsiCo Sentinelone Inc Cl A