Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
63% | 37% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
63% | 37% | 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 31 | 63% |
| July 31 | 47% |
| July 17 | 3% |
Market context
Houthi forces in Yemen have repeatedly attempted kinetic strikes on commercial shipping in the Red Sea and Gulf of Aden, with successful sinkings recorded in July 2025 where two cargo vessels were destroyed and crew members killed or detained[3]. Since late 2023, the group has attacked at least thirty-three commercial ships using drones, missiles, and speed boats, including the hijacking of one vessel in November 2023[6][7]. These incidents establish a clear pattern of targeting merchant traffic, though the current 3% crowd-implied probability suggests traders view a successful unintercepted strike or seizure between now and August 2026 as unlikely, possibly due to heightened naval protection.
The United States has deployed a twenty-country naval task force and aircraft carriers to safeguard commercial navigation in the region, bombing over sixty Houthi targets in January 2024 to disrupt their capabilities[9]. Traders should monitor announcements regarding US and UK strike campaigns, as well as any shifts in Iranian weapon smuggling flows, which include drones and ballistic missiles supplied to the Houthis[5]. The settlement of this contract on USDC at btc-prediction.bet ties directly to BTC and ETH macro liquidity; if whale flows indicate reduced risk appetite, funding rates may compress further on the YES side, reflecting the low probability of a breakthrough against fortified shipping lanes.
Historical thresholds for armed attacks on commercial vessels require gravity threatening state security, a standard the Houthis have met in past sinkings[1]. However, intercepted missile or drone strikes do not qualify for this market, raising the bar for resolution[2]. With the settlement window closing in August 2026, the primary catalyst remains the continuity of Iranian-backed supply chains and the effectiveness of the naval task force in preventing direct impacts on commercial ships[4].
Methodology
This page reads Houthis successfully target 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.
- Which crypto markets exist on Polymarket?
- Currently active markets include BTC/ETH/SOL price targets, halving dates, ETF approvals, hard-fork outcomes and Layer-2 TVL thresholds. The list updates weekly; biggest volume sits on BTC and ETH price forecasts.
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