US futures mixed as US-China trade spat deepens; central bankers gathers at Jackson Hole By: CNBC.com News August 23, 2018 at 05:46 AM EDT U.S. stock index futures traded flat Thursday, as the U.S. and China hit one another with a new round of tariffs. Read More >> Related Stocks: Alibaba Group Holding Ltd Autodesk Dow Industrials SPDR Gap HP Inc Hormel Foods Intuit Nasdaq ETF S&P 500 Ishares Core ETF SPDR S&P 500 ETF Trust Splunk Inc Vmware Inc