Iran-Oman Hormuz Management Agreement by 2026?

Platform comparison

Market context

Iran has moved in the past few days from vague talk to a more specific draft on Strait of Hormuz shipping, with Tehran saying an agreement with Oman is in the “final stages” and that a proposed route has already been reached in principle. Reuters and AP both reported on 5–8 August that the two sides are close, but Iran also said the waterway would not be fully opened without further conditions, including compensation and wider political steps from Washington.[8][13][14]

That is why the market is trading well below certainty: there is now a live negotiating track, but the relevant precedent is that Hormuz announcements have repeatedly been conditional, partial, or linked to wider regional bargaining rather than a clean bilateral treaty. In late June, Oman and Iran agreed only to continue discussions through a joint working group, and in late July Tehran rejected Oman’s broader regional-management proposal before later signalling that a narrower bilateral arrangement was possible.[4][15][16] The current 36% implies traders are discounting the risk that the talks produce only a framework, a temporary routing arrangement, or no formal diplomatic instrument before the deadline.

For the next 24–48 hours, the key catalysts are an official joint statement from Muscat or Tehran, any confirmation that shipping lanes have been agreed, and whether Iran keeps tying the deal to U.S. concessions. Reuters reported on 8 August that Foreign Minister Abbas Araqchi said the deal was “very close” but still dependent on other conditions, while earlier reporting said a joint statement was under final drafting.[13][8] Any silence from Oman, or any report that the two sides are still only discussing routes, fees, or monitoring rules, would matter because this market needs an announced agreement, not just continued talks or media briefings.[2][11]

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

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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.

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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%.