UPDATE 3-Weak metals, oil drag Toronto index to steep loss
(Adds details, quotes, U.S. figures)
* TSX index plunges 2 percent to lowest close since March
* Commodity retreat drags down miners, energy companies
* Seven of ten subgroups retreat
By Cameron French
TORONTO, Aug 15 (Reuters) - The Toronto Stock Exchange's main index plunged on Friday to its lowest level since March, capping off a losing week as resource stocks fell on retreating oil and metal prices.
The S&P/TSX composite index .GSPTSE ended the session down 262.21 points, or 2 percent, at 13,096.70. For the week, the index dropped 1.8 percent.
Oil dropped to below $114 a barrel on faltering global demand and rising supply, sliding further from its record high above $147 in July, and pulling the heavily weighted TSX energy subgroup down 3.2 percent. Suncor Energy SU.TO sagged almost 5 percent.
The materials subgroup was even harder hit, dropping 4.2 percent on falling prices for copper, zinc and particularly gold, which sagged below $800 an ounce for the first time since last December. Continued...