Will "Spider-Man: Brand New Day" 4th Weekend Box Office be between 38m and 41m?

Logged 20 Aug 2026, 22:31 UTC · Brier 0.3364

• Reference class is unfavorable: historically, 4th weekends of $38M+ require Top Gun: Maverick-level legs, which are rare even for mega-openers; the band also spans only $3M, so even a film tracking near $39.5M carries substantial landing error.
• Key inside-view signal is that the market closes the day the 4th weekend ends, and participants now know three full weekends of actual grosses — the 46.5% price implies realized trajectory (opening size plus holdover rates) is pointing near the center of the band, which is genuine signal rather than narrative.
• Divergence between my unconditional estimate (~12–15%) and the market (46.5%) has a plausible cause: the market has access to realized box office data I cannot observe; I update most of the way toward it but retain a discount because a $3M band at the tail of historical comparables is inherently noisy.
• Signal vs narrative: actual holdover percentages and weekday dailies are signal; 'Spider-Man always overperforms' or event-film hype is narrative and should be discounted.

What would change it: If the film's 3rd weekend came in well below ~$52M or its week-to-week drops exceed ~40%, the 4th weekend will almost certainly miss the $38M floor and this resolves NO.

-4.5 probability points from the market at generation · low confidence · Polymarket

Base rate: Almost no MCU/superhero film has ever grossed $38–41M in its 4th weekend (No Way Home: ~$33M; Deadpool & Wolverine: ~$29M), so the unconditional base rate for a tentpole landing in this narrow band is roughly 5–15%.

Chosen by hand.