US stock market futures were tending down Sunday, one day after President Donald Trump announced 25% tariffs on Canada and Mexico and 10% tariffs on China.

The stock market is waiting anxiously for the next move on tariffs as China’s retaliation to levies from the U.S. has put markets on edge amid fears of an escalating tit-for-tat trade war between the two powers.

Stock futures tumbled early Monday as investors weighed new U.S. tariffs on goods from key trade partners and their potential impact on the economy and profits.

U.S. futures and global stocks were hit by a selloff early on Monday as markets around the world braced for a potential trade war triggered by President Donald Trump’s decision to impose sweeping tariffs on imports from Canada, Mexico, and China—which warned of “necessary countermeasures.”

President Donald Trump's 25% tariff plan on goods from Canada and Mexico rattled markets early Monday. Follow along for live updates on stocks and markets, including the Dow Jones Industrial Average,

Canada's main stock index opened lower on Monday as investors dumped risky assets after Ottawa retaliated against U.S. President Donald Trump's tariffs on imports.