* The Toronto Stock Exchange's TSX falls 12.34 percent to 12,508.45
* Leading the index were Linamar Corp LNR.TO , up 3.8%, Labrador Iron Ore Royalty Corp LIF.TO , off -0.3%, and Choice Properties Real Estate Investment Trust CHP_u.TO , down -2.3%.
* Lagging shares were Chemtrade Logistics Income Fund CHE_u.TO , down 34.4%, Shawcor Ltd SCL.TO , down 30.7%, and Lightspeed POS Inc LSPD.TO , lower by 29.3%.
* On the TSX 1 issues rose and 229 fell as a 0-to-1 ratio favored decliners. There were no and 157 new lows, with total volume of 678.1 million shares.
* The most heavily traded shares by volume were Bombardier Inc BBDb.TO , Canadian Natural Resources Ltd CNQ.TO and Aurora Cannabis Inc ACB.TO .
* The TSX's energy group .SPTTEN fell 11.57 points, or 16.5%, while the financials sector .SPTTFS slipped 33.19 points, or 12.8%.
* West Texas Intermediate crude futures CLc1 fell 6.03%, or $1.99, to $30.99 a barrel. Brent crude LCOc1 fell 8.58%, or $3.07, to $32.72 O/R
* The TSX is off 26.7% for the year.