Stock markets fall, erasing earlier gains amid AI, interest rate fears - National

Jarring swings keep rocking Wall Street, and U.S. stocks erased a big morning gain to drop on Thursday as the market remains skittish following weeks of doubts and erratic moves.After initially soaring toward what seemed like its best day since May, with an early surge of 1.9%, the S&P 500 erased all of it and fell 1.6%. The Dow Jones Industrial Average dropped 386 points, or 0.8%, and the Nasdaq composite sank 2.2%.In Canada, the main S&P/TSX composite index fell more than 370 points, weighed down by loss ...