Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Trump Prediction Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Trump Prediction → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Trump Prediction → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Trump Prediction → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Trump Prediction → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Trump Prediction → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on Trump Prediction.
Active sub-markets
| March 31 | 0% YES | 100% NO |
| April 30 | 0% YES | 100% NO |
| May 31 | 0% YES | 100% NO |
| June 30 | 14% YES | 86% NO |
| September 30 | 21% YES | 79% NO |
Market context
The Bab el-Mandeb Strait, a critical chokepoint between Yemen and Djibouti connecting the Red Sea to the Gulf of Aden, has experienced sustained disruption since late 2023 when Houthi militants began attacking commercial shipping. The market asks whether transit volumes will collapse to 10 or fewer arrivals per week—a threshold representing near-total closure—by April 2026. Current crowd pricing at 0% reflects the strait's continued operation despite attacks; IMF PortWatch data shows weekly transit calls have remained above the closure threshold throughout the campaign, though volumes have declined measurably from pre-conflict levels.
Historical precedent suggests complete chokepoint closure requires either sustained military escalation or a fundamental shift in Houthi capability and intent. The 2011 Suez Canal blockage by the Ever Given container ship demonstrated how a single incident can briefly paralyse transit, yet even that resolved within days. The Houthis have demonstrated tactical consistency rather than escalating firepower; their attacks have killed crew members and damaged vessels but have not achieved the coordinated, overwhelming strikes necessary to deter all shipping. Regional powers including the United States, Saudi Arabia, and the UAE maintain naval presence in the area, constraining the space for dramatic intensification.
Traders should monitor three developments: announcements of major new Houthi weapons systems or drone capabilities; shifts in US or regional military posture that might reduce interdiction effectiveness; and any formal Houthi declarations of intent to achieve total closure. Recent reporting from Reuters and regional maritime authorities indicates no imminent capability leap. The market's settlement depends on IMF PortWatch publication schedules, creating a secondary timing dependency beyond the underlying geopolitical question.
Methodology
Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Bab el-Mandeb Strait effectively closed by 2026? plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.
Resolution & payout
Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.
Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.
FAQ
- Where can I trade this market with the lowest fees?
- On Trump Prediction, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- Trump Prediction is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.
- 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.
- 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 it cost to trade on Trump Prediction?
- Zero. Trump Prediction routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
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