What is this market about?

Bab el-Mandeb Strait effectively closed by May 31? The market resolves on Apr 30, 2026 based on the rules described on Polymarket.

How does intra-market arbitrage work here?

If the best-ask prices for every outcome sum to less than $1.00, you can buy each outcome and be guaranteed a $1.00 payout regardless of which one resolves YES.

Polymarket taker fees on this category are typically between 0% and 1.8%. Confirm the live fee on Polymarket before placing orders.

Polymarket market analysis

Bab el-Mandeb Strait effectively closed by May 31?

No edge

Ends Apr 30, 2026

24h Volume

$53,270

Liquidity

$48,636

Outcomes

Summary

This market will resolve to “Yes” if IMF PortWatch publishes a 7-day moving average of transit calls (“Arrivals of Ships”) for the Bab el-Mandeb Strait less than or equal to 10 for any date between market creation and the listed date. Otherwise, this market will resolve to “No”. This market will resolve as soon as IMF PortWatch publishes a 7-day moving average of transit calls for the Bab el-Mandeb Strait equal to or below 10, or once data has been published for the listed date and no such value has been published. If no data has been published for the listed date within 14 calendar days (ET) after that date, this market will resolve based on the data published up to that point. Revisions to previously published data points made before data has been published for the listed date will be considered; however, they will not disqualify a previously published data point from qualifying. Revisions made after data has been published for the listed date will not be considered. The resolution source for this market will be IMF PortWatch, specifically the “Arrivals of Ships” data published for the Bab el-Mandeb Strait at https://portwatch.imf.org/pages/6b1814d64903461b98144a6cc25eb79c.

Spread analysis

No intra-market edge right now (sum of best asks is at or above $1.00).

Polymarket taker fees vary by category between 0% and 1.8%. Always confirm before sizing.

Outcomes

Outcome	Best ask
Yes	0.4%
No	99.7%

Price history

Last 7 days

Open on Polymarket

Frequently asked questions

What is this market about?: Bab el-Mandeb Strait effectively closed by May 31? The market resolves on Apr 30, 2026 based on the rules described on Polymarket.
How does intra-market arbitrage work here?: If the best-ask prices for every outcome sum to less than $1.00, you can buy each outcome and be guaranteed a $1.00 payout regardless of which one resolves YES.
What are the fees?: Polymarket taker fees on this category are typically between 0% and 1.8%. Confirm the live fee on Polymarket before placing orders.