Recent polling from institutes including AtlasIntel and Quaest shows Luciano Zucco (PL) leading first-round intentions with 29–41%, ahead of Juliana Brizola (PDT) at 23–36% and Gabriel Souza (MDB) at 10–13%, with Marcelo Maranata (PSDB) and others far behind. Zucco consolidated support through a broad center-right coalition formalized in July conventions, drawing endorsements across PL, PP, Novo, and Republicanos. Brizola maintains a competitive base via PDT-PT alignment and name recognition, though recent surveys indicate Zucco widening his edge in projected runoffs. These trends, coupled with high undecided shares narrowing toward election day on October 4, align with trader pricing that positions Zucco as the clear frontrunner while leaving room for shifts in the final weeks.