shares of canadian national railway co cnr inched 045 higher to c15537 wednesday in what proved to be an allaround favorable trading session for the canadian market with the sptsx composite index gsptse rising 056 to 2049117 canadian national railway co closed c2002 short of its 52week high c17539 which the company reached on december 13th trading volume of 13 m shares eclipsed its 50day average volume of 13 m editors note this story was autogenerated by automated insights an automation technology provider using data from dow jones and factset see our market data terms of use