* The Toronto Stock Exchange's S&P/TSX .GSPTSE fell 104.14 points, or 0.64 percent, to 16,193.41.
* Leading the index were WestJet Airlines Ltd WJA.TO , up 59.9 percent, Pretium Resources Inc PVG.TO , up 7.2 percent, and Alamos Gold Inc AGI.TO , higher by 7 percent.
* Lagging shares were Canopy Growth Corp WEED.TO , down 7.5 percent, Hexo Corp HEXO.TO , down 7.2 percent, and Sierra Wireless Inc SW.TO , lower by 6.9 percent.
* On the TSX 100 issues rose and 141 fell as a 0.7-to-1 ratio favored decliners. There were 9 new highs and 8 new lows, with total volume of 229.5 million shares.
* The most heavily traded shares by volume were Enbridge Inc ENB.TO , Westjet Airlines Ltd WJA.TO and Manulife Financial Corp MFC.TO .
* The TSX's energy group .SPTTEN fell 3.51 points, or 2.3 percent, while the financials sector .SPTTFS slipped 3.38 points, or 1.1 percent.
* West Texas Intermediate crude futures CLc1 fell 1.38 percent, or $0.84, to $60.81 a barrel. Brent crude LCOc1 fell 1.06 percent, or $0.75, to $69.87 O/R
* The TSX is up 13.1 percent for the year.