* The biggest drag on the index was Bank of Nova Scotia with 10.9 net index points. The top sector weight was financials with 16.5 net points.
* Leading the index were NexGen Energy Ltd , up 7.4 percent, Stars Group Inc , up 5.6 percent, and Tahoe Resources Inc , higher by 5 percent.
* Lagging shares were MEG Energy Corp , down 4.4 percent, Ivanhoe Mines Ltd, down 4.3 percent, and TORC Oil & Gas Ltd, lower by 4.1 percent.
* On the TSX 126 issues advanced and 114 declined as a 1.1-to-1 ratio favored advancers. There were 10 new highs and no new lows, with total volume of 180.3 million shares.
* The most heavily traded shares by volume were Bombardier Inc , Toronto-dominion Bank and Cenovus Energy Inc.
* The TSX's energy group fell 0.68 points, or 0.34 percent, while the financials sector slipped 0.88 points, or -0.29 percent.
* West Texas Intermediate crude futures fell 2.21 percent, or $1.48, to $65.56 a barrel. Brent crude fell 1.33 percent, or $1.03, to $76.53 [O/R]
* The TSX is off 1 percent for the year.
(Reporting By Sinéad Carew)