TORONTO, April 18 (Reuters) - Canada's main stock index rose for the fifth straight day on Wednesday to reach a four-week high, as energy and metal mining companies led broad-based gains, boosted by higher commodity prices.
The Toronto Stock Exchange's S&P/TSX composite index .GSPTSE unofficially closed up 176.67 points, or 1.15 percent, at 15,529.97. All of the index's 10 main groups ended higher.