US stock futures fell Sunday evening as President Trump announced plans to raise global tariffs to 15% under a different law following a Supreme Court ruling against his previous tariff program. Dow Jones futures dropped 0.3%, while S&P 500 and Nasdaq 100 futures also declined, reflecting market unease about the trade policy shift.

Trump invoked Section 122, an untested law requiring Congressional approval after 150 days, after the Supreme Court found he exceeded his authority declaring an economic emergency for tariffs. Several trading partners now seek renegotiation of recent deals, adding uncertainty to trade relations at a time when critics argue levies are pushing up consumer costs.

Markets also await NVIDIA's quarterly earnings on February 25, with the AI giant expected to report EPS of $1.52 on $65.56 billion revenue, compared to $0.89 and $39.33 billion a year ago. The results come amid growing uncertainty about AI industry prospects, with tech stocks facing pressure over potential disruptions from the sector.