TSX 60 dropped 8 points (0.4%) and composite fell 116 points (0.3%) to 33,904.11, a 1.3% weekly decline.
US markets also slipped, with Dow down 64 points (0.1%) and Nasdaq down 27 points (0.1%) as investors await Fed decision.
Oil prices rose (Brent $106.36, WTI $95.10) and gold slipped modestly amid expectations the Fed will hold rates unchanged.
Verizon shares rose after raising its annual profit forecast and reporting unexpected Q1 wireless subscriber gains.