Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi vs Polymarket) Pick polygram.ink (preferred broker) |
86% | 14% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
86% | 14% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 70-72m | 86% |
| 72m+ | 9% |
| 68-70m | 2% |
| <66m | 0% |
| 66-68m | 0% |
Market context
Spider-Man: Brand New Day is scheduled for wide release on 30 August 2026, with its third weekend box office performance (14–16 August) forming the settlement basis for this contract. The 0% crowd-implied probability reflects the market's assessment that domestic third-weekend gross will fall below the lowest strike threshold, suggesting either a sharp decline from opening or an expectation of underperformance relative to comparable superhero releases.
Third-weekend holds for tentpole superhero films typically range between 45–65% of opening weekend figures, though this varies significantly by critical reception and competitive landscape. The 2019 Spider-Man: Far From Home retained 56% in its third weekend; 2021's No Way Home held 68%, benefiting from exceptional word-of-mouth. Conversely, underperforming entries like 2023's The Flash dropped to 38% by weekend three. The current 0% probability suggests traders are pricing in either a substantially weaker opening than historical precedent or anticipate significant audience attrition driven by negative reviews or competing releases.
Key variables affecting third-weekend performance include critical consensus at launch, competing releases during late August, and whether the film generates franchise-sustaining legs. Industry tracking typically emerges within 48 hours of the 30 August opening, providing clarity on audience reception. The settlement window closes 16 August 2026, requiring final Box Office Mojo figures rather than studio estimates. Traders should monitor early reviews, preview screenings, and whether other major releases launch during the film's second or third weekend, as these factors historically determine whether superhero films maintain momentum or experience steeper declines.
Methodology
We track "Spider-Man: Brand New Day" 3rd Weekend Box Office (Lower Strikes) across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
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 Kalshi vs Polymarket. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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.
- 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi vs Polymarket trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
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