Leading the index were Lightspeed POS Inc <LSPD.TO?>, up 14.0%, Shopify Inc? , up 11.3%, and Ballard Power Systems Inc? , higher by 11.1%.
Lagging shares were Enerflex Ltd?? , down 8.5%, Enerplus Corp?, down 7.3%, and Secure Energy Services Inc?, lower by 7.1%.
On the TSX 143 issues rose and 82 fell as a 1.7-to-1 ratio favored advancers. There were 9 new highs and no new lows, with total volume of 336.0 million shares.
The most heavily traded shares by volume were B2gold Corp , Yamana Gold Inc and Bombardier Inc .
The TSX's energy group fell 1.07 points, or 1.6%, while the financials sector climbed 1.32 points, or 0.5%.
West Texas Intermediate crude futures fell 7.1%, or $1.59, to $20.82 a barrel. Brent crude fell 5.48%, or $1.74, to $30 [O/R]
The TSX is off 16.4% for the year.