Dow Jones futures tumbled Monday morning, along with S&P 500 futures and Nasdaq futures, but are off Sunday evening lows. Trump tariffs triggered the major indexes' worst week since the March 2020 Covid crash.

Wall Street shuddered, and a level of shock unseen since COVID’s outbreak tore through financial markets worldwide Thursday on worries about the damage President Donald Trump’s newest set of tariffs could do to economies across continents,

The drop closed the worst week for the S&P 500 since March 2020, when the pandemic ripped through the global economy. The Dow Jones Industrial Average plunged 2,231 points, or 5.5% and the Nasdaq composite tumbled 5.8% to pull more than 20% below its record set in December.