Dow set for a triple-digit loss at the open as tech stocks hit bear territory By: CNBC.com News November 20, 2018 at 04:31 AM EST U.S. stock index futures pointed to a lower open on Tuesday morning as tremors in tech stocks keep investors nervous. Read More >> Related Stocks: Dow Industrials SPDR Nasdaq ETF S&P 500 Ishares Core ETF SPDR S&P 500 ETF Trust