TORONTO — Canada's main stock index rose more than 100 points Wednesday, boosted by strength in the technology and base metal sectors, while U.S. stock markets muddled to a mixed close. The market traded higher in the morning before slumping after the latest comments from U.S. President Donald Trump about tariffs. Trump reiterated some of his tariff threats and sowed confusion over the duties on Canadian and Mexican goods currently set for next week. The latest tariff headlines “really took this market down a couple of notches,” said Allan Small, senior investment adviser at iA Private Wealth. The S&P/TSX composite...