What level of tariffs will the U.S. impose on imports and when? Stock futures were falling early Monday as markets were roiled by threats of new levies but also confusion over the deadline for the proposed duties.

S&P 500 E-Mini futures (ESU25) are up +0.08%, andSeptember Nasdaq 100 E-Mini futures (NQU25) are up +0.17% this morning as initial jitters over U.S. President Donald Trump’s latest tariff moves eased,