The U.S. stock market extended its selloff on March 11 after President Donald Trump hit Canada with more tariffs.
After trading in positive territory at the opening bell, the blue-chip Dow Jones Industrial Average plummeted more than 500 points, or 1.2 percent. The Dow Jones is down close to 3 percent this year.
The tech-heavy Nasdaq Composite Index tumbled more than 100 points, or about 0.6 percent. The index slipped into correction territory (i.e., loss of 10–20 percent) to start the trading week, falling 10 percent from its high.
The broader S&P 500 Index shed 0.7 percent, adding to its year-to-date decline of more than 5 percent.
Treasury securities held steady amid the latest declines, with the benchmark 10-year yield little changed, at 4.22 percent….