Canada's benchmark stock market edged down Friday as falling metal prices and lower profit in other sectors largely offset gains in groups led by consumer companies.

The Toronto Stock Exchange's benchmark Standard & Poor's/TSX Composite Index fell 0.31 points to close the day at 15,173.03. Six of the 10 main groups gained ground.

The Stars Group, formerly known as gaming company Amaya, saw its shares jump 9.8 percent to 23.4 Canadian dollars.

Auto-parts maker Magna International Inc rose 1.9 percent to 63.23 Canadian dollars. The broader consumer discretionary group gained 0.8 percent.

Consumer staples, which includes grocers, added 0.5 percent. Healthcare stocks rallied 0.6 percent, while telecoms gained 0.5 percent.

Balancing out the gains was a 0.4-percent slide in materials, which include mining and other resources stocks, and a 0.5-percent retreat in oil and gas company shares.

Metal prices were in retreat, with gold falling on central bank prospects, and copper prices, which had rallied to three-year highs, stumbled in its biggest weekly fall since March this year.

Teck Resources declined 2.3 percent to 25.69 Canadian dollars, while Franco Nevada Corp dropped 1.1 percent to 98.72 Canadian dollars.