"Spider-Man: Brand New Day" 2nd Weekend Box Office (Lower Strikes)

Platform comparison

Market context

The film’s domestic **second weekend** is the real-world event being judged here: the market resolves from *The Numbers*’ final 3-day box office figure for 7–9 August, with the payout determined by the bracket that matches that reported total. In prediction-market terms, a **YES** share pays out if the final number lands in the selected range, while a **NO** share pays if it does not.

This market is best read against an exceptionally strong opening and the usual steep second-weekend drop for event films. *Brand New Day* opened to an estimated **$355 million domestic** weekend, one of the biggest debuts ever[4][16], and recent trade reporting suggested its second weekend could still be around **$135 million to $140 million** domestically[2]. That is why a **1% YES probability** implies the crowd sees the chosen lower bracket as an outside outcome rather than the central case: the film would need an unusually sharp collapse from its launch to settle into a much smaller second frame.

Traders should watch for any updated studio or trade projections as Friday and Saturday grosses come in, because late momentum can move the final bracket quickly. The main dependency is straightforward: if walk-up demand and premium-format play hold up, the second weekend can track closer to the higher forecasts cited above[1][2]; if front-loading proves extreme, the reported *The Numbers* total could fall materially below those expectations. The market closes after the 9 August weekend is final, so only the settled domestic 3-day figure matters, not provisional studio estimates.

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

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.

UK Frequently Asked Questions

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 Prediction Market UK. 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.

Is Polymarket legal in the UK?

Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.

Do I pay tax on prediction market profits in the UK?

UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.

How do I deposit on Polymarket from the UK?

UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.