Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
85% | 15% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
85% | 15% | 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 |
|---|---|
| August 17 | 85% |
| August 25 | 13% |
| August 31 | 12% |
| August 19 | 9% |
| August 20 | 9% |
| August 28 | 9% |
| August 18 | 8% |
| August 21 | 8% |
| August 22 | 7% |
| August 23 | 7% |
| August 29 | 7% |
| August 26 | 6% |
| August 30 | 6% |
| August 24 | 5% |
| August 27 | 5% |
| August 16 | 1% |
| August 2 | 0% |
| August 3 | 0% |
| August 4 | 0% |
| August 5 | 0% |
| August 6 | 0% |
| August 7 | 0% |
| August 8 | 0% |
| August 9 | 0% |
| August 10 | 0% |
| August 11 | 0% |
| August 12 | 0% |
| August 13 | 0% |
| August 14 | 0% |
| August 15 | 0% |
Market context
Iran has conducted direct military strikes against Arab states on multiple occasions, most notably launching approximately 300 ballistic missiles and drones at Israel in April 2024 following the assassination of a senior commander, and previously striking Iraqi military bases in January 2020 after the killing of General Qasem Soleimani. The current 0% implied probability reflects either a perception of extremely low near-term escalation risk or insufficient liquidity to price tail events. Historical precedent suggests Iranian strikes occur in response to specific triggering events—assassinations, major attacks on Iranian soil, or perceived existential threats—rather than as routine policy. The qualifying definition here encompasses air strikes and surface-to-surface missile strikes through August 2026, a window that captures potential responses to ongoing regional tensions but excludes proxy activity or cyber operations.
Traders should monitor developments in Israeli-Iranian tensions, US policy shifts following the 2024 election cycle, and any incidents involving Iranian military or political leadership. Recent reporting from Reuters and regional security analysts indicates Iranian military posture remains elevated following 2024 strikes, though no imminent escalation timeline has been publicly signalled. The USDC settlement mechanism means price discovery depends on market participants assigning non-zero probability to triggering events; sustained 0% pricing may reflect either genuine confidence in regional de-escalation or thin order books unable to accommodate contrarian positions. Whale accumulation in related geopolitical contracts on btc-prediction.bet could signal shifting risk assessments ahead of major announcements or policy changes.
Methodology
Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.
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.
UK Frequently Asked Questions
- 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.
- Is Polymarket legal in the UK?
- 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%.
Trade Will Iran target a Arab country on 2026? on BTC Prediction
Live order book, 0% fees, USDC settlement in seconds.
Open live market →