By Rebecca L. McClay, MarketWatch SAN FRANCISCO (MarketWatch) -- Canadian stocks traded lower Monday morning as investors focused more on economic concerns than on outcomes from the Group of 20 summit held in Toronto over the weekend. The S&P/TSX Composite Index (CA:$ISPTX 11,681, -27.20, -0.23%) slipped 0.4%, with the S&P/TSX Capped Metals and Mining Index (CA:TTMN 880.15, -8.78, -0.99%) down 1.2%. Softening oil prices weighed on energy stocks. As crude oil for August delivery fell 71 cents to $78.15 a barrel, the S&P/TSX Capped Energy Index (CA:TTEN 283.25, -2.75, -0.96%) declined 1.1%. Canadian Natural Resources (CA:CNQ 36.43, -0.28, -0.76%) dropped 1%. For more on oil prices, see Futures Movers. The S&P/TSX Capped Financials Index lost 0.1%, with Fairfax Financials Holdings (CA:FFH 390.21, -5.73, -1.45%) as the main decliner. Gold prices edged higher, as Canadian gold stocks received a boost. Gold for August delivery added 40 cents to $1,256.40 an ounce on the Comex division of the New York Mercantile Exchange. Shares for Barrick Gold (CA:ABX 48.23, +0.15, +0.31%) , Canada's largest gold producer, rose 0.3%. Read more on gold trends. "With summer starting in the Northern Hemisphere and holidays coming up in the U.S. and Canada, this week looks to be starting out fairly quietly," CMC Markets analyst Colin Cieszynski said in a note. Trading activity may pick up later this week, as the U.S. employment report will be released Friday.

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