Recent polling for Brazil's October 4, 2026, presidential election shows incumbent Luiz Inácio Lula da Silva and Flávio Bolsonaro, the Liberal Party nominee endorsed by his father, running neck-and-neck in first-round scenarios, each typically capturing 38-45 percent of intended votes. Multiple other candidates, including Ronaldo Caiado and Romeu Zema, continue to draw enough support to fragment the electorate further. This distribution, consistent across recent surveys from Quaest, Futura, and AtlasIntel, keeps both frontrunners well below the 50 percent threshold required for an outright victory. Traders therefore assign an 86 percent implied probability to a runoff, reflecting the structural dynamics of Brazil's two-round system and the absence of any late consolidation that would alter current vote shares.