shares of restaurant brands international inc qsr shed 042 to c9402 tuesday in what proved to be an allaround poor trading session for the canadian market with the sptsx composite index gsptse falling 115 to 2043987 restaurant brands international inc closed c069 below its 52week high c9471 which the company reached on april 21st trading volume of 602436 shares remained below its 50day average volume of 10 m