CANADA STOCKS-TSX ends higher on commodities, optimism
* TSX up 142.25 points, or 1.35 percent, at 10,673.84
* Materials, energy groups lead climb
* RIM up 4.3 percent after RBC raises price target
* Investors shrug off unexpected dip in U.S. house starts (Adds official closing figures, details, quotes)
By Jennifer Kwan
TORONTO, Aug 18 (Reuters) - Toronto's main stock index bounced higher on Tuesday as market sentiment brightened and rising commodity prices helped lift the resource-heavy index after Monday's steep descent.
Rising gold and oil prices boosted the key materials and energy groups, up 1.8 percent and 1.9 percent respectively. [ID:nSIN440961]
"For the Canadian market it has a lot to do with materials, with the fact that gold is up a few dollars and then crude is also up a couple bucks. Any time those two go up our market does well," said Jennifer Radman, vice-president and associate portfolio manager at Caldwell Investment Ltd.