Market icon
Geopolitics·Houthi

Bab el-Mandeb Strait effectively closed by...?

Market icon
Geopolitics·Houthi

Bab el-Mandeb Strait effectively closed by...?

$1,158,818 Vol.

Apr 30, 2026
Polymarket

$1,158,818 Vol.

Polymarket

April 30

$828,492 Vol.

25%

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 , including both the chart and downloadable files.Heightened threats from Yemen's Houthis to close the Bab el-Mandeb Strait—a critical chokepoint for roughly 12% of global seaborne oil trade—amid the 2026 Iran conflict and renewed strikes on Israel since late March have sustained trader caution, yet market-implied odds reflect low near-term closure consensus. IMF PortWatch data shows 7-day average transit calls at 30-50 vessels, well above the effective closure threshold of ≤10, bolstered by multinational naval patrols enabling ~57 recent daily transits versus historical norms. Ongoing disruptions fuel Brent crude's climb to $103/bbl with a regional risk premium, while Cape of Good Hope rerouting has lifted container freight rates over 150% from 2023 baselines, squeezing margins and supply chains. Watch for Houthi escalations or US strikes as pivotal swing factors.

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
, including both the chart and downloadable files.
Volume
$1,158,818
End Date
Apr 30, 2026
Market Opened
Mar 16, 2026, 2:42 PM ET

Resolver

0x65070BE91...
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 , including both the chart and downloadable files.
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 , including both the chart and downloadable files.Heightened threats from Yemen's Houthis to close the Bab el-Mandeb Strait—a critical chokepoint for roughly 12% of global seaborne oil trade—amid the 2026 Iran conflict and renewed strikes on Israel since late March have sustained trader caution, yet market-implied odds reflect low near-term closure consensus. IMF PortWatch data shows 7-day average transit calls at 30-50 vessels, well above the effective closure threshold of ≤10, bolstered by multinational naval patrols enabling ~57 recent daily transits versus historical norms. Ongoing disruptions fuel Brent crude's climb to $103/bbl with a regional risk premium, while Cape of Good Hope rerouting has lifted container freight rates over 150% from 2023 baselines, squeezing margins and supply chains. Watch for Houthi escalations or US strikes as pivotal swing factors.

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
, including both the chart and downloadable files.
Volume
$1,158,818
End Date
Apr 30, 2026
Market Opened
Mar 16, 2026, 2:42 PM ET

Resolver

0x65070BE91...
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 , including both the chart and downloadable files.

Related

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Will 10 ships transit the Strait of Hormuz on any day April 8–12?

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Will the United Kingdom send warships through the Strait of Hormuz by April 30, 2026?

12%
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1k+ container ship transits of Suez Canal in Q1 2026?

1%

Beware of external links.

Frequently Asked Questions

"Bab el-Mandeb Strait effectively closed by...?" is a prediction market on Polymarket with 2 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "April 30" at 25%, followed by "March 31" at 0%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 25¢ implies that the market collectively assigns a 25% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

As of today, "Bab el-Mandeb Strait effectively closed by...?" has generated $1.2 million in total trading volume since the market launched on Mar 16, 2026. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

To trade on "Bab el-Mandeb Strait effectively closed by...?," browse the 2 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "Bab el-Mandeb Strait effectively closed by...?" is "April 30" at 25%, meaning the market assigns a 25% chance to that outcome. The next closest outcome is "March 31" at 0%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "Bab el-Mandeb Strait effectively closed by...?" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.