Which movie has biggest opening weekend in 2026?

Platform comparison

Market context

The market tracks which film secures the highest domestic three-day opening weekend in 2026, with settlement tied to finalised figures on The Numbers rather than studio estimates. Current crowd-implied probability sits at 0% YES, a stark divergence from Polymarket trader consensus, which assigns Avengers: Doomsday a 76% chance of winning thanks to its prime 18 December holiday slot and major MCU reuniting of Robert Downey Jr. with the Russo brothers [3].

Historically, December holiday releases dominate annual opening records, often eclipsing summer blockbusters; Toy Story 5 previously led the year with $160 million in June, yet that figure remains well below the $372.5 million global opening of The Super Mario Galaxy Movie reported in recent trade data [1][6]. While global figures do not resolve this domestic market, the Mario film’s scale suggests the threshold for 2026’s record will be exceptionally high, making Avengers: Doomsday’s late-year positioning critical.

Traders should monitor final release-date confirmations and cast announcements for Avengers: Doomsday, as well as any schedule shifts for Spider-Man: Brand New Day, which holds 20% of the Polymarket vote [5]. The Numbers’ updated box-office forecasts have already solidified Avengers as the leading candidate, pushing its market price to 76% Yes, whereas sportsbook lines on film openings remain sparse, leaving prediction markets as the primary pricing mechanism for this event [3].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Which movie has biggest opening weekend in 2026? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to PolyGram, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.