Leading the index were Stars Group Inc, up 13.3 percent, Alaris Royalty Corp, up 6.5 percent, and Aecon Group Inc, higher by 5.3 percent.

Lagging shares were Great Canadian Gaming Corp, down 6.9 percent, Lundin Mining Corp, down 4.8 percent, and Fortuna Silver Mines Inc, lower by 4.4 percent.

On the TSX 100 issues rose and 135 fell as a 0.7-to-1 ratio favored decliners. There were 19 new highs and 3 new lows, with total volume of 272.2 million shares.

The most heavily traded shares by volume were Aurora Cannabis Inc, Bombardier Inc and Encana Corp.

The TSX's energy group fell 2.04 points, or 1.3 percent, while the financials sector climbed 0.28 points, or 0.1 percent.

West Texas Intermediate crude futures fell 0.58 percent, or $0.33, to $56.23 a barrel. Brent crude  rose 0.12 percent, or $0.08, to $65.94

The TSX is up 12.4 percent for the year.

(Reporting by Caroline Valetkevitch)