The Toronto Stock Exchange’s main index shed 42.11 points in a broad-based retreat.
The S&P/TSX composite index closed at 15,474.12, with all but one subsector in the red.
On Wall Street, the markets were mixed. The Dow Jones industrial average retreated 11.77 points to 22,284.32. The S&P 500 index advanced 0.18 of a point to 2,496.84 and the Nasdaq composite index rose 9.57 points to 6,380.16.
The loonie was trading at an average price of US80.84¢, down 0.19 of a U.S. cent.
The November crude contract fell US34¢ to US$51.88 per barrel and the November natural gas contract rose US1.2¢ to US$3.00 per mmBTU.
The December gold contract lost US$9.80 to US$1,301.70 an ounce and the December copper contract declined about US1.9¢ to roughly US$2.92 a pound.