Investors remain worried that the US economy could slide into recession if Trump's new levies exacerbate sticky inflation and slowing economic growth. Friday will bring the release of February's Personal Consumption Expenditures index,

The move of imposing tariffs on auto imports overshadowed data showing the economy expanded at a quicker pace in the fourth quarter than previously estimated. A measure of inflation was revised lower.

Stock futures are mixed on Thursday morning as investors assess the latest developments on tariffs and digest fresh economic data.