US stocks set to open relatively flat ahead of Fed rate decision By: CNBC.com News June 13, 2018 at 05:57 AM EDT U.S. stock index futures fluctuated ahead of Wednesday's open, as investors switched focus to the U.S. central bank. Read More >> Related Stocks: Dow Industrials SPDR Nasdaq ETF S&P 500 Ishares Core ETF SPDR S&P 500 ETF Trust