**Spider-Man: Brand New Day’s record-shattering July 31 opening and sustained dominance—already exceeding $2.5 billion worldwide—anchor trader consensus at a 64% implied probability for the year’s biggest opening weekend.** The Tom Holland-led MCU entry benefited from strong pre-release tracking, extended theatrical play, and crossover appeal that outpaced typical superhero benchmarks. Avengers: Doomsday holds the remaining meaningful share at 36.5% thanks to its December 18 date, Russo brothers direction, Robert Downey Jr. as Doctor Doom, and massive ensemble, yet faces a compressed holiday window and direct competition from Dune: Messiah on the same date. The Hunger Games: Sunrise on the Reaping (November 20) and Dune: Messiah register near-zero odds, reflecting lower anticipated opening scale relative to the two Marvel tentpoles despite franchise familiarity and premium-format positioning.