Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi vs Polymarket) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| June 27 | 100% |
| July 9 | 10% |
| June 30 | 9% |
| July 7 | 8% |
| July 8 | 8% |
| July 3 | 7% |
| July 4 | 7% |
| July 5 | 7% |
| July 6 | 7% |
| July 1 | 7% |
| July 2 | 5% |
| June 26 | 2% |
| June 29 | 2% |
| June 28 | 1% |
Market context
Iranian forces recently launched a drone strike on a commercial cargo ship in the Strait of Hormuz, prompting immediate US military retaliation against Iranian missile and drone storage facilities. This kinetic action, explicitly claimed by the Islamic Republic of Iran, marks a sharp escalation in the 2026 Strait of Hormuz crisis, where shipping traffic has been largely blocked since late February. The current crowd-implied probability of 6% for a future confirmed strike on commercial shipping reflects the high volatility of this corridor, yet it diverges significantly from the more aggressive lines seen in cross-platform sportsbooks and analyst consensus, which often price in a higher likelihood of continued Iranian aggression given the recent blockade and failed ceasefire.
Historical precedents frame this low probability as potentially misleading; during the 1980–1988 Iran-Iraq Tanker War, anti-ship cruise missiles were used in over half of all attacks on shipping, with Iraq employing them in approximately 80% of strikes on commercial vessels [1]. While the 1988 Operation Praying Mantis demonstrated the US Navy’s willingness to retaliate decisively against Iranian targets [9], the recent US strikes on Friday following the drone attack on the Singapore-flagged vessel show a renewed, immediate willingness to engage Iranian territory directly [2]. Traders should monitor the settlement window ending 2026-07-09 for any official announcements from the Islamic Revolutionary Guard Corps regarding further maritime operations, as well as the schedule for US naval deployments in the strait, which could act as a catalyst for escalation or de-escalation [4]. The recent Reuters report confirms that the US views unwarranted aggression against commercial shipping as a violation of the ceasefire, suggesting that any future Iranian claim of a strike would likely trigger further conflict [4].
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 Kalshi vs Polymarket, 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
- 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi vs Polymarket trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- 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.
Trade Iran successfully targets shipping on 2026? on Kalshi vs Polymarket
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