US stocks were battered by a steep sell-off Friday after China retaliated against the United States for President Donald Trump’s tariffs in a tit-for-tat that escalates a global trade war.

The S&P 500 sank 4.8%, more than in major markets across Asia and Europe, for its worst day since the pandemic crashed the economy in 2020. The Dow Jones Industrial Average dropped 1,679 points, or 4%, and the Nasdaq composite tumbled 6%.

The declines signal another day of massive losses ahead when trading officially begins tomorrow. U.S. stock futures plunged Sunday evening, an indication that the market turmoil that began last week will continue when trading opens Monday.

Wall Street had its worst week since 2020 as investors fled after President Trump's Wednesday announcement of new tariffs. Manufacturers and retailers. Exporters and importers. High tech and low tech.

Fallout from the Trump administration's aggressive global tariff regime continues to hit global markets and frustrate geopolitics, while the president has shown no signs of backing down. China hit back at Trump's punitive 34% tariff with its own levy of the same percentage on U.