Which movie has biggest opening weekend in 2026?

Platform comparison

Market context

The market asks which film will dominate the domestic three-day opening weekend in 2026, with the current crowd-implied probability sitting at 0% for the “Yes” outcome, suggesting traders believe the resolution condition is already settled or impossible under current data. In reality, *Toy Story 5* has already grossed $160 million domestically in its June opening, the highest confirmed figure for any 2026 release so far, surpassing *Project Hail Mary* ($80.6m) and *Michael* ($97.2m) [1][2]. Historical precedent shows that animated tentpoles released in summer often peak early, but December holiday slots—particularly for major franchise events—can still eclipse them if tracking is strong.

The key catalyst is *Avengers: Doomsday*, scheduled for 18 December 2026, which carries the strongest pre-release consensus among traders for a record-breaking debut due to its MCU event status, holiday timing, and cast including Robert Downey Jr. and X-Men/Fantastic Four characters [5]. While *Spider-Man: Brand New Day* (31 July) and *The Odyssey* (late 2026) offer contrarian angles, early industry polls and teaser buzz heavily favour *Avengers* as the year-end tentpole capable of overtaking *Toy Story 5* [5]. Traders should monitor official tracking updates from Hollywood trade sources and final box office confirmations once the film’s opening weekend concludes, as studio estimates will not resolve the market—only finalised 3-day domestic figures will [2][5].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

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.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Who Will Win trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.