Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| July 8 | 100% |
| July 15 | 100% |
| July 31 | 100% |
| August 31 | 100% |
| July 1 | 0% |
Market context
Iranian forces have already launched kinetic strikes against commercial vessels in the Strait of Hormuz, with the IRGC firing missiles at ships transiting the choke point since late February 2026, following US and Israeli air strikes on Iran. This historical precedent of direct Iranian aggression against merchant shipping, including the drone attack on M/V Ever Lovely in June 2025 and subsequent US retaliatory strikes, frames the current 0% crowd-implied probability as a market mispricing rather than a reflection of event impossibility. The resolution criteria explicitly require actions claimed by the Islamic Republic or confirmed from Iranian territory, which aligns precisely with the documented IRGC operations that have already occurred.
Traders should monitor CENTCOM announcements regarding further strikes on Iranian surveillance infrastructure and any Iranian Foreign Minister statements on the interim Memorandum of Understanding, as the June 17 ceasefire memorandum appears at breaking point following renewed aggression. Recent reports indicate IRGC fired at least two missiles at commercial ships in the strait, with US officials confirming these attacks, while Iran’s Foreign Minister Abbas Araqchi stated negotiations will not commence if threats continue. The settlement window ending August 2026 leaves ample time for escalation, particularly if US funding rates for BTC/ETH remain elevated and whale flows suggest increased volatility in Middle East risk assets, which could amplify on-chain USDC settlement activity for this contract.
Methodology
This page reads Iran successfully targets shipping by 2026? on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
FAQ
- Why USDC and not ETH or USDT?
- USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.
- What does a transaction cost on Polygon?
- Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.
- How does UMA secure the resolution?
- The UMA Optimistic Oracle uses a bond system: a proposer posts a bond, a two-hour challenge window opens. On dispute the losing side forfeits the bond — financial incentive for honest resolution.
- How volatile are crypto prediction markets?
- Crypto markets react to spot prices — a 5% BTC move typically shifts a "BTC above X by date" market 10-20%. Polymarket crypto market liquidity is usually six-figure USD, sufficient for active trading.
- Are crypto prediction markets taxable in the US?
- In the US, prediction market gains are typically treated as ordinary income or short-term capital gains depending on holding period. Consult a tax professional for your specific situation — we cannot provide tax advice.
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