shares of canadian apartment properties real estate investment trust un carut slid 137 to c5320 monday in what proved to be an otherwise allaround positive trading session for the canadian market with the sptsx composite index gsptse rising 060 to 2208560 canadian apartment properties real estate investment trust un closed c957 below its 52week high c6277 which the company achieved on september 9th trading volume of 800997 shares eclipsed its 50day average volume of 516990