shares of suncor energy inc su slid 372 to c2822 wednesday in what proved to be an allaround poor trading session for the canadian market with the sptsx composite index gsptse falling 103 to 2095499 the stocks fall snapped a threeday winning streak suncor energy inc closed c316 short of its 52week high c3138 which the company reached on june 15th trading volume of 71 m shares remained below its 50day average volume of 95 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