Eikon search string for individual stock moves: STXBZ The Day Ahead newsletter: The Morning News Call newsletter: U.S. stock index futures fell on Tuesday as investors locked in some gains ahead of a potential decision on faster tapering from the Federal Reserve this week. At 7:34 ET, Dow e-minis were up 0.10% at 35,681. S&P 500 e-minis were down 0.11% at 4,663.75, while Nasdaq 100 e-minis were down 0.42% at 16,014. Compiled by Deborah Sophia in Bengaluru Our Standards: The Thomson Reuters Trust Principles.