US-Iran Hormuz Agreement by 2026?

Platform comparison

Market context

The Strait of Hormuz is the core real-world event here: whether Washington and Tehran announce a formal diplomatic deal on traffic through the waterway before the settlement deadline. At a **69% YES** price, the crowd is treating this as the favourite, but not a lock; the market is effectively saying a deal is more likely than not, with the main question being whether any announcement is specific enough to qualify under the contract.

Historically, this kind of market is often driven less by the existence of talks than by the exact wording of the final instrument. In June, the US and Iran already signed a memorandum of understanding tied to reopening the strait and easing maritime restrictions, but both sides also described it as a framework and not a final agreement[14][15][17]. That matters for handicapping: if the current phase produces only another interim understanding, extension, or Oman-mediated management arrangement, it may leave YES backers exposed even if headlines sound constructive. The consensus case for YES is that there is already a precedent for an agreement on Hormuz traffic, so the bar for another formal text is not especially high; the contrarian angle is that partial de-escalation and operational shipping arrangements may continue without a fresh qualifying deal[18].

For catalysts, traders should watch for statements from the US, Iran, Oman, and Qatar, plus any report of a signed text, cabinet approval, or explicit commitment on shipping rights. Reuters said on 4 August that Trump claimed talks were under way while Iran denied negotiations with the US and said only discussions with Oman were happening, which is a reminder that headline risk is high and the wording of any announcement will decide settlement[3]. Al Jazeera reported on 2 August that Iranian officials described talks with Oman as in their “final stages”, but also said the strait would never return to its pre-war status[7]. The value case is therefore split: YES holds if diplomacy turns into a formal, clearly worded bilateral or substantially similar instrument; NO becomes attractive if the process stays indirect, opaque, or limited to maritime management without a qualifying US-Iran agreement.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Who Will Win 2026, which mirrors the Polymarket order book directly.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

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 fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Who Will Win 2026 trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.