shares of thomson reuters corp tri dropped 179 to c14301 monday in what proved to be an otherwise allaround favorable trading session for the canadian market with the sptsx composite index gsptse rising 030 to 2046342 thomson reuters corp closed c902 below its 52week high c15203 which the company reached on september 13th trading volume of 495630 shares eclipsed its 50day average volume of 337919