Canada's main stock index was little changed shortly after the open on Wednesday as gains in the financial and energy sectors were offset by broader losses led by mining and industrial firms.
A stronger USA dollar weighed on metal prices, with gold falling to 1-1/2 week lows and copper sliding to three-week lows.
Teck Resources Ltd fell 4.9 percent to C$26.87, while First Quantum Minerals Ltd declined 2.9 percent to C$13.40 as copper prices fell to three-week lows on profit-taking, rising stocks in London Metal Exchange warehouses and nervousness about Chinese demand.
"There's two opposing forces, oils and metals".
The Toronto Stock Exchange's S&P/TSX composite index fell 3.58 points, or 0.02 percent, to 15,139.83.
"The hurdle rate, or the barrier to success from last year's Q3, Q4 earnings is that much harder. this year", said Headland.
The influential financials group gained 0.3 percent, though individual gains were modest. The Bank also trimmed its target price for Canadian National Railway, which retreated 1.6 percent to C$98.06.
South of the border, it was the second straight day of record highs for major NY indexes despite relatively modest trading movements.