TORONTO - Canada's main stock index moved up in late morning trading on Wednesday, while U.S. markets charged ahead with the Dow Jones industrials posting a triple-digit advance, as global trading stabilized following three days of tumult. The S&P/TSX composite index was up 34.30 points, or 0.23 per cent, to 15,398.23, after 90 minutes of trading, boosted by the health-care sector which includes the volatile marijuana space. In New York, the ...