* The Toronto Stock Exchange's S&P/TSX .GSPTSE fell 8.40 points, or 0.05 percent, to 16,502.42.
* Leading the index were First Majestic Silver Corp FR.TO , up 8.4 percent, Pan American Silver Corp PAAS.TO , up 6.4 percent, and First Quantum Minerals Ltd FM.TO , higher by 6.2 percent.
* Lagging shares were Turquoise Hill Resources Ltd TRQ.TO , down 43.2 percent, NFI Group Inc NFI.TO , down 10.3 percent, and CannTrust Holdings Inc TRST.TO , lower by 9.5 percent.
* On the TSX 98 issues rose and 138 fell as a 0.7-to-1 ratio favored decliners. There were 12 new highs and 4 new lows, with total volume of 177.9 million shares.
* The most heavily traded shares by volume were Turquoise Hill Resources Ltd TRQ.TO , Encana Corp ECA.TO and Bombardier Inc BBDb.TO .
* The TSX's energy group .SPTTEN fell 2.26 points, or 1.6 percent, while the financials sector .SPTTFS slipped 0.05 points, or 0.0 percent.
* West Texas Intermediate crude futures CLc1 fell 2.55 percent, or $1.52, to $58.06 a barrel. Brent crude LCOc1 fell 2.33 percent, or $1.55, to $64.93 O/R
* The TSX is up 15.2 percent for the year.