Frank Scarpitti’s long incumbency as Markham mayor since 2006, combined with consistent strong re-election margins such as 64 percent in 2022, underpins the market’s heavy weighting toward his victory in the October 26, 2026 municipal election. Nominations closed in late August with only two confirmed challengers, Martin Ross and Stephen Edgell, producing a narrow field that limits opportunities for vote splitting. Recent public visibility through events and policy support on housing and business issues has reinforced his position ahead of the October 16–26 voting window. Traders assign low probability to an upset because municipal incumbents in Ontario typically retain office absent major disruptions; late developments such as a high-profile scandal, health issue, or unexpectedly strong challenger campaign could still shift outcomes before election day.