U.S. stock index futures were lower Friday, following the latest consumer spending report and as investors continued to mull over when the Federal Reserve could begin to taper its asset-purchase program.
U.S. stock index futures signaled a lower open after Japan's Nikkei index plummeted over 5 percent.
U.S. stock market index futures were sharply higher Tuesday, as investors returned from a long holiday weekend, amid supportive comments from central banks around the world and an upbeat housing report.