shares of canadian national railway co cnr slid 094 to c16389 monday in what proved to be an otherwise allaround positive trading session for the canadian market with the sptsx composite index gsptse rising 053 to 2156912 canadian national railway co closed c477 below its 52week high c16866 which the company reached on october 25th trading volume of 532241 shares remained below its 50day average volume of 16 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