Shares of the following companies may have unusual moves in Canadian trading.
Athabasca Oil Sands Corp. (ATH) : PetroChina Co.’s partner in oil-sands development increased its 2011 capital- expenditure budget by C$61.5 million ($62.7 million).
Evertz Technologies Ltd. (ET) : The maker of electronics for broadcasters said it will buy back as much as 5 percent of its stock.
Western Copper Corp. (WRN) : The metals explorer with operations in Yukon, British Columbia and the Northwest Territories said it will split into three companies. One will own the Carmacks Copper and Redstone projects, and a second will own the Island Copper project. Western Copper will keep the Casino deposit.
Yamana Gold Inc. (YRI) : Canada’s fifth-biggest gold producer had its rating raised to “overweight” from “neutral” by Patrick Chidley, an analyst at HSBC Holdings Plc.
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