shares of canadian national railway co cnr shed 050 to c14602 monday in what proved to be an otherwise allaround positive trading session for the canadian market with the sptsx composite index gsptse rising 103 to 1925832 canadian national railway co closed c2546 below its 52week high c17148 which the company reached on march 29th trading volume of 17 m shares remained below its 50day average volume of 18 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