CANADA STOCKS-TSX up despite commodity weakness; Couche-Tard, Valeant jump
August 22, 2016 at 16:42 PM EDT
TORONTO, Aug 22 (Reuters) - Canada's main stock index rose on Monday as Alimentation Couche-Tard Inc jumped after the convenience store operator bought a U.S. chain in an expansion move and drugmaker Valeant Pharmaceuticals rose after it hired a new chief financial officer.