* The Toronto Stock Exchange's S&P/TSX .GSPTSE rose 22.70 points, or 0.14 percent, to 16,510.82.
* Leading the index were CannTrust Holdings Inc TRST.TO , up 19.2 percent, Peyto Exploration & Development Corp PEY.TO , up 6.2 percent, and Nuvista Energy Ltd NVA.TO , higher by 6.1 percent.
* Lagging shares were Transcontinental Inc TCLa.TO , down 8.5 percent, Cameco Corp CCO.TO , down 7.8 percent, and Nexgen Energy Ltd NXE.TO , lower by 7.8 percent.
* On the TSX 138 issues rose and 97 fell as a 1.4-to-1 ratio favored advancers. There were 12 new highs and 6 new lows, with total volume of 147.4 million shares.
* The most heavily traded shares by volume were Canntrust Holdings Inc TRST.TO , Encana Corp ECA.TO and Toronto-dominion Bank TD.TO .
* The TSX's energy group .SPTTEN fell 0.60 points, or 0.4 percent, while the financials sector .SPTTFS slipped 0.11 points, or 0.0 percent.
* West Texas Intermediate crude futures CLc1 fell 1.54 percent, or $0.93, to $59.28 a barrel. Brent crude LCOc1 fell 0.88 percent, or $0.59, to $66.13 O/R
* The TSX is up 15.3 percent for the year.