US futures mixed as markets await Fed rate decision By: CNBC.com News March 20, 2019 at 03:15 AM EDT U.S. stock index futures traded mixed on Wednesday as investors await a policy decision by the U.S. Federal Reserve. Read More >> Related Stocks: Dow Industrials SPDR Nasdaq ETF S&P 500 Ishares Core ETF SPDR S&P 500 ETF Trust