U.S. stocks: GDP jitters knock futures into red By: MarketWatch January 30, 2015 at 05:49 AM EST U.S. stocks are poised for a weak open on Friday, amid jitters the reading on fourth-quarter economic growth will be disappointing. Read More >> Related Stocks: Amazon.com Biogen Idec Blackstone Inc Chevron Corp Eli Lilly MasterCard Shake Shack Inc Tyson Foods Visa Xerox Corp