The biggest contributor to the TSX loss was Enbridge, while the biggest sector drag was energy.

Leading the index were Canada Goose Holdings Inc , up 4.7 percent, Canopy Growth Corp , up 4.6 percent, and Aurora Cannabis Inc  , higher by 4.5 percent.

Lagging shares were SSR Mining Inc , down 7.0 percent, Ivanhoe Mines Ltd, down 5.1 percent, and Lundin Mining Corp, lower by 3.6 percent.

On the TSX 83 issues advanced and 154 declined as a 0.5-to-1 ratio favored decliners. There were 16 new highs and 1 new lows, with total volume of 195.0 million shares.

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

The TSX's energy group  fell 1.28 points, or 0.65 percent, while the financials sector slipped 0.3 percent.

West Texas Intermediate crude futures fell 1.18 percent, or $0.78, to $65.07 a barrel. Brent crude  fell 0.35 percent, or $0.26, to $75.08 [O/R]

The TSX is up 0.7 percent for the year.

(Reporting by Caroline Valetkevitch)