Bab el-Mandeb Strait effectively closed by 2026?

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Market context

Houthi attacks on commercial shipping in the Red Sea have disrupted transit through the Bab el-Mandeb Strait since late 2023, though the waterway has not yet experienced a sustained closure meeting the market's threshold of fewer than 10 daily transit calls on a 7-day moving average. Ship diversions around the Cape of Good Hope have become routine, yet traffic through the strait has remained above this critical level despite periodic escalations in drone and missile strikes. The IMF PortWatch dataset, which tracks actual vessel arrivals, provides the sole settlement mechanism and has recorded daily averages consistently in the 20–40 range throughout 2024 and into 2025.

Historical precedent suggests that complete functional closure of major chokepoints requires either sustained military intervention or a dramatic shift in threat perception. The Suez Canal blockade in 2021 took weeks to resolve; the Strait of Hormuz has weathered decades of tensions without reaching zero-traffic states. Houthi capabilities, whilst operationally disruptive, have not yet achieved the scale or consistency needed to force a 70–75 percent reduction in transits from current levels.

Traders should monitor announcements regarding US or coalition naval deployments, changes in Houthi targeting patterns, and any insurance or shipping industry guidance that might trigger mass rerouting decisions. Recent statements from shipping associations indicate acceptance of elevated risk premiums rather than wholesale abandonment of the route. The April 2026 settlement window provides sufficient time for material escalation, but the 0% crowd probability reflects the high operational and political barriers to achieving the specific threshold required.

Methodology

This page reviews Bab el-Mandeb Strait effectively closed by 2026? across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Sport Prediction — the application we operate, where you trade directly against 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.

FAQ

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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 does it cost to trade on Sport Prediction?

Zero. Sport Prediction routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

How fast are USDC deposits?

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Do I need to KYC for this market?

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