The Montarville riding in the October 5, 2026 Quebec general election features a tight multi-party contest centered on incumbent Nathalie Roy of the Coalition Avenir Québec facing PQ challenger Jean-François Cloutier, along with Liberal Mathieu Lavoie, Québec solidaire's Ginette Langlois, and other candidates. Recent provincial polling aggregates show the Parti Québécois leading overall while the CAQ holds second place, creating localized pressure in francophone ridings like this one in the Montérégie region. Projections from models such as 338Canada and Qc125 as of late August indicate a narrow CAQ edge based on 2022 results transposed to new boundaries, yet the race remains competitive due to vote splitting and undecided voters. Trader consensus reflected in current pricing highlights uncertainty around turnout, campaign momentum, and any late shifts in party standings before nomination deadlines close in mid-September.