Shares of Waste Connections Inc. WCN, -1.31% shed 1.31% to C$186.85 Tuesday, in what proved to be an otherwise all-around positive trading session for the Canadian market, with the S&P/TSX Composite Index GSPTSE, +0.25% rising 0.25% to 20,204.87. Waste Connections Inc. closed C$9.80 below its 52-week high (C$196.65), which the company reached on April 21st. Trading volume of 50,963 shares remained below its 50-day average volume of 251,770.