What were the immediate market reactions to Trump's new tariff announcements?

Stock markets reacted negatively before trading floors even opened. Futures on Canada's Toronto Stock exchange fell 1.3%, while in the U.S., the Dow plummeted by 600 points with the S&P 500 and Nasdaq dropping about 1.6% on average. Even markets in countries not directly affected responded negatively, with the German DAX and other European markets falling nearly 2%. However, when the New York Stock Exchange opened, markets calmed and only slightly dipped, likely because Mexico and the U.S. reached a temporary agreement to delay the tariffs for one month.