US futures fluttered as President Donald Trump moved to fulfill his promise to impose reciprocal tariffs on US trading partners. Trump signed his plan for reciprocal tariffs on Thursday but delayed their implementation until April to allow his administration to negotiate on a one-by-one basis with countries that could be impacted.

Futures tied to Canada's main stock index were subdued on Tuesday as investors weighed the potential implications of new U.S. tariffs on steel and aluminum imports.