U.S. stocks are rallying and recovering much of their sharp losses from last week, when worries about how President Donald Trump’s tariffs may be punishing the economy sent a shudder through Wall Street.

The Dow Jones Industrial Average climbed 585 points, or 1.3%, and the Nasdaq composite leaped 2%. Idexx Laboratories helped lead the way and soared 27.5% after the seller of veterinary instruments and other health care products reported a stronger profit for the spring than analysts expected.