US stocks set for a negative open as trade tensions resurface By: CNBC.com News March 19, 2018 at 06:06 AM EDT U.S. stock index futures posted sharp drops ahead of Monday’s open, as losses from markets overseas weighed on sentiment. Read More >> Related Stocks: Dow Industrials SPDR PowerShares QQQ S&P 500 Ishares Core ETF SPDR S&P 500 ETF Trust