Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets) Pick polygram.ink (preferred broker) |
63% | 37% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
63% | 37% | 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 |
|---|---|
| August 31 | 63% |
| August 15 | 33% |
Market context
Iran and Oman are still working through a shipping-management arrangement for the Strait of Hormuz, but the latest reporting suggests a deal is closer than it was in late July. Reuters said on 5 August that a proposed arrangement would give Iran control over inbound traffic and that significant details were still unresolved, while Reuters on 8 August reported Iran saying a deal was “close” but not yet sufficient to reopen the waterway on its own[13][10].
The comparison across platforms matters here because the market’s 35% YES looks more cautious than the news flow, but not wildly so. Publicly reported discussions moved from a June joint working group to late-July proposals, then to claims of an “understanding in principle” and a draft joint statement under review[4][11][3]. That progression supports a live deal watch, yet the same sources also show recurring blockers: the scope of control, any fees, whether third parties can obstruct the process, and whether the agreement would be temporary rather than a full bilateral treaty[3][10][13]. Bloomberg and Reuters have both framed the talks as more advanced than before, but still unfinished[5][10].
For traders, the main catalysts are an official Tehran-Muscat joint statement, any named implementation timeline, and whether the language clearly creates reciprocal obligations on traffic management rather than merely a route pilot or temporary understanding[3][5]. Reuters reported on 5 August that the administration of inbound traffic, outbound traffic, and fee treatment remained open, so the contract is likely to turn on wording rather than headlines alone[13]. If the eventual announcement only confirms provisional lanes or a short trial, that may not satisfy the market’s definition unless it is explicitly framed as an agreement between Iran and Oman that establishes binding policies or commitments on Hormuz traffic[3][2].
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 Best Prediction Markets, 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
- 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 Best Prediction Markets. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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.
- 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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