Dow set to sink at the open as politics, trade woes keep investors on edge By: CNBC.com News August 10, 2018 at 05:38 AM EDT U.S. stock index futures fell deep into the red ahead of Friday’s open, following negative sentiment in markets overseas. Read More >> Related Stocks: Dow Industrials SPDR Nasdaq ETF S&P 500 Ishares Core ETF SPDR S&P 500 ETF Trust