Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Review UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| July 24 | 100% |
| August 4 | 100% |
| August 19 | 10% |
| August 25 | 10% |
| August 12 | 8% |
| August 13 | 8% |
| August 14 | 8% |
| August 20 | 8% |
| August 26 | 8% |
| August 16 | 7% |
| August 18 | 7% |
| August 23 | 7% |
| August 27 | 7% |
| August 28 | 7% |
| August 29 | 7% |
| August 30 | 7% |
| August 31 | 7% |
| August 15 | 6% |
| August 17 | 6% |
| August 22 | 6% |
| August 9 | 5% |
| August 10 | 5% |
| August 24 | 5% |
| August 11 | 4% |
| August 21 | 4% |
| August 8 | 1% |
| July 25 | 0% |
| July 26 | 0% |
| July 27 | 0% |
| July 28 | 0% |
| July 29 | 0% |
| July 30 | 0% |
| July 31 | 0% |
| August 1 | 0% |
| August 2 | 0% |
| August 3 | 0% |
| August 5 | 0% |
| August 6 | 0% |
| August 7 | 0% |
Market context
The real-world event is a Houthi kinetic strike on, or a forcible seizure of, a commercial ship, rather than a military vessel or a missile/drone launch that is intercepted before impact. In programmatic terms, the cleanest way to read the market is to track whether an incident is independently reported as direct contact with a commercial hull or boarding/taking control, because near-misses, debris damage, and generic threats would not settle this market Yes.
Historically, this kind of Houthi shipping market has priced best when the group is already signalling a blockade and publicly naming target classes, because the operational pattern since late 2023 has included drones, missiles and occasional boarding tactics against commercial traffic in the Red Sea and Bab el-Mandeb corridor.[3][18] Reuters reported in July that a Houthi-linked source said preparations for shipping attacks had been completed near Bab el-Mandeb, while the Joint Maritime Information Center warned mariners that the threat remained elevated even though vessels were still transiting on established routes.[15][16] That combination usually keeps a market like this pinned high: the base rate of attempted attacks is material, and the settlement rule only needs one qualifying strike before the end date.
The main catalysts to watch are Houthi statements, maritime security advisories, and vessel-routing changes around Bab el-Mandeb, the southern Red Sea and Saudi export lanes. Reuters and other outlets reported fresh Houthi claims in July against Saudi-linked tankers, including named vessels, which is the sort of announcement traders can wire into alerts alongside AIS/route-monitoring and incident feeds.[9][11][19] For a systematic setup, the useful trigger is not just “attack claimed” but whether the report says the ship was actually hit or boarded; if traffic data shows rerouting, that supports heightened risk but does not itself satisfy the market’s resolution standard.[7][16]
Methodology
This page reviews Houthis successfully target shipping on 2026? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Review UK, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
UK Frequently Asked Questions
- 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 Polymarket Review UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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.
- 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%.
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