Shares of Waste Connections Inc. WCN, -0.42% slipped 0.42% to C$162.04 Friday, in what proved to be an otherwise all-around positive trading session for the Canadian market, with the S&P/TSX Composite Index GSPTSE, +0.36% rising 0.36% to 18,394.45. The stock’s fall snapped a two-day winning streak. Waste Connections Inc. closed C$21.51 short of its 52-week high (C$183.55), which the company reached on April 8th. Trading volume of 271,386 shares remained below its 50-day average volume of 323,966.