Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Qué Es) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| July 24 | 100% |
| July 25 | 100% |
| July 31 | 100% |
| August 15 | 100% |
| August 31 | 100% |
| July 23 | 5% |
Market context
Polymarket's conditional tokens on Houthis successfully targeting commercial shipping are trading at 1% YES, implying the crowd assigns roughly 99-to-1 odds against a direct kinetic strike or forceful seizure of a merchant vessel through August 2026. The YES token on Polygon costs roughly 0.01 USDC per contract, with settlement conditional on Houthi forces either conducting a strike that directly impacts a commercial ship or boarding and taking control of one. Intercepted missiles or drone strikes that fail to reach their target do not qualify; the bar is material contact or operational control.
The Houthis have demonstrated sustained maritime capability since 2023, launching dozens of anti-ship ballistic missiles and drones at vessels in the Red Sea and Gulf of Aden. However, most attacks have been intercepted by coalition air defences or naval assets, and no commercial ship has been seized or directly struck with kinetic effect under the market's definition. Historical precedent comes from Somali piracy (2008–2012), which saw hundreds of boarding attempts and dozens of successful seizures, though that operated in a different strategic context with weaker naval presence. The Houthis' stated targeting has focused on Israeli-linked vessels and military convoys; commercial shipping has largely avoided direct impact despite proximity to attack zones.
Traders should monitor coalition naval deployments, particularly US and UK frigate rotations in the Red Sea, and Houthi weapons-testing announcements. Recent statements from Houthi military spokespeople in January 2025 emphasised drone accuracy improvements, though operational success rates remain low. Any shift in targeting doctrine—signalled through Houthi media or confirmed by shipping intelligence reports—would alter the probability calculus. The market settles on direct evidence: confirmed strikes with material damage or boarding incidents reported by maritime authorities or vessel operators.
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
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 Polymarket Qué Es. 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.
- 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.
- 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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