* The Toronto Stock Exchange's TSX falls 0.83 percent to 16,310.97
* Leading the index were Stars Group Inc TSGI.TO , up 30.8 percent, Winpak Ltd WPK.TO , up 8.4 percent, and Alacer Gold Corp ASR.TO , higher by 5.4 percent.
* Lagging shares were First Quantum Minerals Ltd FM.TO , down 7.7 percent, Tourmaline Oil Corp TOU.TO , down 6.5 percent, and Exchange Income Corp EIF.TO , lower by 5.4 percent.
* On the TSX 76 issues rose and 151 fell as a 0.5-to-1 ratio favored decliners. There were 2 new highs and 12 new lows, with total volume of 218.0 million shares.
* The most heavily traded shares by volume were Aurora Cannabis Inc ACB.TO , Bombardier Inc BBDb.TO and Encana Corp ECA.TO .
* The TSX's energy group .SPTTEN fell 3.10 points, or 2.3 percent, while the financials sector .SPTTFS slipped 4.78 points, or 1.5 percent.
* West Texas Intermediate crude futures CLc1 fell 1.88 percent, or $1.01, to $52.61 a barrel. Brent crude LCOc1 fell 2.22 percent, or $1.31, to $57.58 O/R
* The TSX is up 13.9 percent for the year.