US futures point to a muted open, after Tuesday's sharp losses By: CNBC.com News January 23, 2019 at 03:47 AM EST U.S. stock index futures fluctuated ahead of Wednesday's open, weighed down by negative trading seen across global markets. Read More >> Related Stocks: Dow Industrials SPDR Nasdaq ETF S&P 500 Ishares Core ETF SPDR S&P 500 ETF Trust