Wall Street jittery as ECB action looms By: CNBC.com News January 21, 2015 at 05:53 AM EST U.S. stock index futures signaled a softer open on Wednesday as investors face another day of big name tech and bank earnings, ahead of Thursday's ECB meeting. Read More >> Related Stocks: American Express Asml Holdings NY Reg ADR Discover Financial Services F5 Networks Fifth Third Bancorp Kinder Morgan Northern Trust SLM Corp SanDisk Corp Sentinelone Inc Cl A U.S. Bancorp United Rentals UnitedHealth Group Xilinx eBay