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,

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.

The Dow Jones Industrial Average closed down 320 points, or 0.8%, while the Nasdaq dropped 2.1%. The S&P 500 fell 1.5%, putting the index on the brink of a bear market, a term tha