Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Scam?) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Place a position → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Place a position → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Place a position → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Place a position → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Place a position → |
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 | 11% |
Market context
Polymarket currently prices a successful Houthi kinetic strike or seizure of a commercial vessel at 1% implied probability, with the conditional YES token trading at roughly $0.01 per share on Polygon. This valuation reflects the market's assessment that direct, unintercepted hits on merchant shipping—or forceful boarding operations—remain unlikely through August 2026, despite eighteen months of sustained Houthi activity in the Red Sea and Gulf of Aden.
The Houthis have launched hundreds of drone and missile attacks against commercial traffic since November 2023, yet the vast majority have been intercepted by coalition air defences or naval assets. Only a handful of vessels have sustained direct damage from unintercepted strikes; most notably, the *Rubymar* in February 2024 suffered hull breaches after a missile hit, and the *True Confidence* caught fire following a drone strike in June 2024. These incidents demonstrate capability but also highlight the effectiveness of existing defensive measures. No commercial ship has been seized through boarding operations. The low probability reflects both the density of naval protection in transit corridors and the technical difficulty of achieving unintercepted strikes against moving targets.
Traders monitoring this market should track coalition air defence deployments, particularly US Navy presence rotations and UK frigate schedules in the region. Recent statements from Houthi military spokespeople claiming improved targeting accuracy warrant attention, though claims often exceed demonstrated capability. Insurance data and shipping route diversions also signal market confidence: premiums for Red Sea transits have stabilised considerably since early 2024, suggesting underwriters assess the strike-through risk as genuinely low. Any significant escalation in Houthi drone sophistication or a breakdown in coalition interception rates could shift the probability materially.
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 Polymarket Scam?, 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
- 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.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Scam? 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.
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