* Main Toronto stock index eases 0.68 percent
* Weaker commodity prices weigh on energy, mining stocks
* Index rises 2.7 percent on the week (Updates closing numbers, adds comments)
TORONTO, Aug 22 (Reuters) - Toronto stocks finished a strong week on a losing note on Friday, retreating on the back of sagging oil and metals prices, with losses offset partly by stronger financial issues.
A 5.4 percent drop in oil prices yanked the TSX’s heavily-weighted energy subgroup down 2.35 percent, while weaker prices for metals such as copper and gold dragged the materials group down 2.34 percent.
The retreat followed two days of strong gains for the index after it hit a five-month low on Tuesday.
“I think the market is trying to establish maybe a short-term bottom, but struggling to do so,” said Douglas Davis, president of Davis-Rea in Toronto.
The S&P/TSX composite index .GSPTSE fell 91.93 points, or 0.68 percent, to close at 13,447.29. For the week, it rose 2.7 percent.
Among energy issues, Talisman Energy TLM.TO fell 4.1 percent to C$18.42, while Husky Energy (HSE.TO) eased 3.7 percent to finish at C$46.67.
However, outside of the resource sectors, the index was largely stronger, with seven of the 10 TSX subgroups making gains.
Financial issues led the charge with a 1.4 percent rise, fueled by mutual fund seller IGM Financial (IGM.TO), up 2.5 percent at C$42.18, and income trust CI Financial CIX_u.TO, whose units rose 5.4 percent to C$22.11, after the company said it had talked with a number of parties about possible strategic combinations. ($1=$1.05 Canadian) (Reporting by Cameron French; Editing by Peter Galloway)