Will Spider-Man: Brand New Day beat Avengers: Endgame's opening weekend record?

Platform comparison

Market context

Spider-Man: Brand New Day is in cinemas now, and the market turns on whether its three-day US opening from 31 July to 2 August ultimately clears $357,115,007 domestically, the benchmark set by Avengers: Endgame. Early box-office trackers and studio guidance had framed the debut much lower than that record, but recent coverage has pushed expectations into the high-$100 millions to high-$200 millions, with some outlets even floating a possible $300 million-plus start if weekend turnout holds[1][2][3][8][14].

That makes the current 55% YES implied probability look like a trade on upside versus history rather than a base case. Endgame’s opening remains an extreme outlier, and even the more bullish Spider-Man forecasts in the press cluster well below it; one prominent tracking report put the film at $180 million to $190 million, while another said Sony was projecting $195 million domestically, with stronger third-party estimates reaching $260 million to $280 million[6][7][8][13][14]. The wider franchise context also matters: Spider-Man: No Way Home opened at $260.1 million domestically, which shows the brand can produce an enormous launch, but still leaves a meaningful gap to Endgame’s record[9].

For traders, the key catalyst is the finalisation of The Numbers’ daily box-office tab once the 3-day opening weekend is no longer estimate-based, because that is the settlement source for this contract. The immediate watchlist is whether Saturday and Sunday hold close to the earliest demand signals from previews and premium formats, since those can shift the final domestic total materially; current media reports have already highlighted unusually strong Thursday previews and premium-screen sales[2][3]. In crypto terms, this is a straightforward USDC-settled event with no direct BTC or ETH linkage, so the main market driver is box-office data flow rather than macro beta, though wider risk appetite can still affect liquidity and pricing around the close.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.

Resolution & payout

Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.

Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.

FAQ

What are crypto prediction markets?

Crypto prediction markets are on-chain smart contracts where you buy YES or NO shares on a future crypto event (e.g. "BTC above $100k by year-end"). The market price between 0¢ and 100¢ is the implied probability.

Why USDC and not ETH or USDT?

USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.

What does a transaction cost on Polygon?

Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.

How does UMA secure the resolution?

The UMA Optimistic Oracle uses a bond system: a proposer posts a bond, a two-hour challenge window opens. On dispute the losing side forfeits the bond — financial incentive for honest resolution.

Which crypto markets exist on Polymarket?

Currently active markets include BTC/ETH/SOL price targets, halving dates, ETF approvals, hard-fork outcomes and Layer-2 TVL thresholds. The list updates weekly; biggest volume sits on BTC and ETH price forecasts.