* The Toronto Stock Exchange's TSX falls 1.34 percent to 15,981.77
* Leading the index were Shopify Inc SHOP.TO , up 3.8%, Ballard Power Systems Inc BLDP.TO , up 3.4%, and Lightspeed POS Inc LSPD.TO , higher by 3%.
* Lagging shares were First Majestic Silver Corp FR.TO , down 9.3%, Hudbay Minerals Inc HBM.TO , down 9.0%, and First Quantum Minerals Ltd FM.TO , lower by 8.8%.
* On the TSX 29 issues rose and 193 fell as a 0.2-to-1 ratio favored decliners. There was 1 new high and no new lows, with total volume of 270.5 million shares.
* The most heavily traded shares by volume were Canadian Natural Resources Ltd CNQ.TO , Suncor Energy Inc SU.TO and Kinross Gold Corp K.TO .
* The TSX's energy group .SPTTEN fell 3.07 points, or 4.3%, while the financials sector .SPTTFS slipped 3.99 points, or 1.5%.
* West Texas Intermediate crude futures CLc1 fell 3.7%, or $1.52, to $39.59 a barrel. Brent crude LCOc1 fell 3.41%, or $1.47, to $41.68 O/R
* The TSX is off 6.3% for the year.