* The Toronto Stock Exchange's TSX falls 0.57 percent to 17,655.49
* Leading the index were Real Matters Inc REAL.TO , up 4.0%, Algonquin Power & Utilities Corp AQN.TO , up 3.3%, and CAE Inc CAE.TO , higher by 3.1%.
* Lagging shares were Silvercorp Metals Inc SVM.TO , down 24.1%, Aurora Cannabis Inc ACB.TO , down 15.6%, and Ero Copper Corp ERO.TO , lower by 7.5%.
* On the TSX 68 issues rose and 161 fell as a 0.4-to-1 ratio favored decliners. There were 35 new highs and 2 new lows, with total volume of 209.2 million shares.
* The most heavily traded shares by volume were Aurora Cannabis Inc ACB.TO , Bombardier Inc BBDb.TO and First Capital Realty Inc FCR_u.TO .
* The TSX's energy group .SPTTEN fell 2.28 points, or 1.7%, while the financials sector .SPTTFS slipped 0.64 points, or 0.2%.
* West Texas Intermediate crude futures CLc1 fell 1.1%, or $0.56, to $50.39 a barrel. Brent crude LCOc1 fell 0.8% , or $0.44, to $54.49 O/R
* The TSX is up 3.5% for the year.