Marine Le Pen leads the market at 44.4% due to her consistent first-round polling edge of 33-36% for the April 2027 vote, fueled by voter discontent over France’s public debt, deficit pressures, and cost-of-living concerns as Emmanuel Macron’s term ends. Centrist fragmentation between Édouard Philippe (19.5%) and Gabriel Attal has boosted Jean-Luc Mélenchon (12.5%) into runoff contention in multiple September 2026 surveys, where he often places second at 15-18% and draws youth support. Philippe remains the strongest non-extreme alternative, though recent polls show him trailing Mélenchon in some head-to-head scenarios for the second slot. Traders’ pricing reflects these dynamics alongside Le Pen’s projected runoff advantages, even as economic and coalition uncertainties persist ahead of the May runoff.