Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets) Pick polygram.ink (preferred broker) |
10% | 90% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
10% | 90% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| December 31 | 10% |
| August 31 | 4% |
| July 31 | 1% |
| July 17 | 0% |
Market context
The question centres on whether the United States will formally collect transit fees, tolls, or protection payments from shipping operators or governments for passage through the Strait of Hormuz before the end of 2026. The mechanism could involve direct charges levied by US authorities, payments routed through intermediaries or contractors, or in-kind compensation such as cargo shares or oil allocations. Any monetised arrangement—regardless of scale or nomenclature—would trigger a "Yes" resolution.
Historical precedent offers limited direct comparison. The US has never systematically charged merchant vessels for Hormuz transit, though it has occasionally sought cost-sharing from allied nations for regional military operations. The Trump administration's 2020 proposal to charge Gulf states for naval protection generated political friction but no implemented fee structure. More relevant are recent statements from senior US officials suggesting frustration with the current security burden; in 2024, discussions around burden-sharing with regional partners intensified, though these remained diplomatic rather than transactional. The 13% implied probability reflects scepticism that formal, enforceable fee collection will materialise within the timeframe.
Traders should monitor announcements from the State Department, Pentagon, and Treasury regarding Hormuz security arrangements, particularly any bilateral agreements with Gulf Cooperation Council states or individual shipping operators. Congressional testimony on Middle East defence costs and strategic chokepoint management will signal political appetite for formalised payment schemes. The resolution hinges on whether any arrangement crosses from rhetorical burden-sharing into actual revenue collection—a distinction that remains contested across prediction platforms and policy circles.
Methodology
We track US charges Hormuz fees by 2026? 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
- 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.
- 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.
- 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.
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