* The Toronto Stock Exchange's TSX falls 0.80 percent to 17,409.33 

* Leading the index were Aurinia Pharmaceuticals Inc , up 3.9%, Brookfield Renewable Partners LP, up 3.3%, and Constellation Software Inc, higher by 3.3%.

* Lagging shares were MAG Silver Corp, down 5.5%, Torex Gold Resources Inc, down 5.4%, and Osisko Mining Inc, lower by 4.9%.

* On the TSX 87 issues rose and 133 fell as a 0.7-to-1 ratio favored decliners. There were 11 new highs and no new lows, with total volume of 168.7 million shares.

* The most heavily traded shares by volume were Whitecap Resources Inc, Suncor Energy Inc and Cenovus Energy Inc.

* The TSX's energy group fell 1.74 points, or 2.0%, while the financials sector slipped 3.13 points, or 1.0%.

* West Texas Intermediate crude futures rose 0.86%, or $0.4, to $46.97 a barrel. Brent crude  rose 0.68%, or $0.34, to $50.31 [O/R]

* The TSX is up 2% for the year.