US futures edge higher as trade conflicts continue to fester By: CNBC.com News September 12, 2018 at 04:40 AM EDT U.S. stock index futures pushed higher ahead of Wednesday's open, adding onto the gains seen in the previous trading session. Read More >> Related Stocks: Dow Industrials SPDR Nasdaq ETF S&P 500 Ishares Core ETF SPDR S&P 500 ETF Trust