shares of suncor energy inc su dropped 236 to c3057 monday in what proved to be an allaround poor trading session for the canadian market with the sptsx composite index gsptse falling 068 to 2074845 suncor energy inc closed c378 below its 52week high c3435 which the company reached on november 25th trading volume of 183 m shares eclipsed its 50day average volume of 109 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