shares of canadian national railway co cnr inched 066 higher to c15633 wednesday in what proved to be an otherwise allaround down trading session for the canadian market with the sptsx composite index gsptse falling 024 to 1970595 canadian national railway co closed c1906 below its 52week high c17539 which the company reached on december 13th trading volume of 649648 shares remained below 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