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icon for Avg. # of ships transiting Bab el-Mandeb Strait end of September?
Geopolitics·Oil

Avg. # of ships transiting Bab el-Mandeb Strait end of September?

icon for Avg. # of ships transiting Bab el-Mandeb Strait end of September?
Geopolitics·Oil

Avg. # of ships transiting Bab el-Mandeb Strait end of September?

Aug 31

Sep 30

Aug 31

Sep 30

30-34 27.5%

25-29 26%

<25 19.3%

35-39 19%

Polymarket
NEW

30-34 27.5%

25-29 26%

<25 19.3%

35-39 19%

Polymarket
NEW

<25

$298 Vol.

19%

25-29

$1,000 Vol.

26%

30-34

$427 Vol.

27%

35-39

$242 Vol.

19%

40+

$122 Vol.

10%

This market will resolve according to the 7-day moving average of transit calls (“Arrivals of Ships”) for the Bab el-Mandeb Strait that IMF Portwatch reports for September 30, 2026. Transit calls include container, dry bulk, roll-on/roll-off, general cargo, and tanker ships. Ships not reported by IMF Portwatch will not be considered. This market will resolve as soon as the relevant data has been published. If the relevant data is not published within 14 calendar days of the specified date, this market will resolve based on the most recent data published up to that point. In case of obvious data integrity issues (i.e., erroneous data), the market may remain open until the end of the third calendar day (ET) after the date on which such data is first released to allow for corrections. Data integrity issues refer only to clerical or other similar errors in the underlying data, and do not include cases where IMF Portwatch differs from alternative sources. 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.Persistent Houthi attacks and a declared maritime blockade targeting Saudi-linked tonnage have kept Bab el-Mandeb volumes suppressed, with recent daily AIS-confirmed crossings fluctuating between 36 and 39 amid dark transits and war-risk premiums exceeding 1% of hull value. Recent fatal strikes, including the August 11 incident killing six, and ongoing targeting of tankers have deterred mainstream carriers, though Suez Canal traffic has edged higher to post-2024 peaks as select operators like MSC resume limited services. Elevated insurance costs, rerouting via the Cape of Good Hope, and the mix of sanctioned or shadow vessels create uncertainty around stabilization or further declines by end-September, driving closely matched market-implied odds across the 25–34 daily bins.

This market will resolve according to the 7-day moving average of transit calls (“Arrivals of Ships”) for the Bab el-Mandeb Strait that IMF Portwatch reports for September 30, 2026.

Transit calls include container, dry bulk, roll-on/roll-off, general cargo, and tanker ships. Ships not reported by IMF Portwatch will not be considered.

This market will resolve as soon as the relevant data has been published. If the relevant data is not published within 14 calendar days of the specified date, this market will resolve based on the most recent data published up to that point.

In case of obvious data integrity issues (i.e., erroneous data), the market may remain open until the end of the third calendar day (ET) after the date on which such data is first released to allow for corrections. Data integrity issues refer only to clerical or other similar errors in the underlying data, and do not include cases where IMF Portwatch differs from alternative sources.

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.
Volume
$2,090
End Date
Sep 30, 2026
Market Opened
Aug 26, 2026, 6:14 PM ET

Resolution Source

IMF PortWatch

Resolver

0x69c47De9D...
This market will resolve according to the 7-day moving average of transit calls (“Arrivals of Ships”) for the Bab el-Mandeb Strait that IMF Portwatch reports for September 30, 2026. Transit calls include container, dry bulk, roll-on/roll-off, general cargo, and tanker ships. Ships not reported by IMF Portwatch will not be considered. This market will resolve as soon as the relevant data has been published. If the relevant data is not published within 14 calendar days of the specified date, this market will resolve based on the most recent data published up to that point. In case of obvious data integrity issues (i.e., erroneous data), the market may remain open until the end of the third calendar day (ET) after the date on which such data is first released to allow for corrections. Data integrity issues refer only to clerical or other similar errors in the underlying data, and do not include cases where IMF Portwatch differs from alternative sources. 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.
This market will resolve according to the 7-day moving average of transit calls (“Arrivals of Ships”) for the Bab el-Mandeb Strait that IMF Portwatch reports for September 30, 2026. Transit calls include container, dry bulk, roll-on/roll-off, general cargo, and tanker ships. Ships not reported by IMF Portwatch will not be considered. This market will resolve as soon as the relevant data has been published. If the relevant data is not published within 14 calendar days of the specified date, this market will resolve based on the most recent data published up to that point. In case of obvious data integrity issues (i.e., erroneous data), the market may remain open until the end of the third calendar day (ET) after the date on which such data is first released to allow for corrections. Data integrity issues refer only to clerical or other similar errors in the underlying data, and do not include cases where IMF Portwatch differs from alternative sources. 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.Persistent Houthi attacks and a declared maritime blockade targeting Saudi-linked tonnage have kept Bab el-Mandeb volumes suppressed, with recent daily AIS-confirmed crossings fluctuating between 36 and 39 amid dark transits and war-risk premiums exceeding 1% of hull value. Recent fatal strikes, including the August 11 incident killing six, and ongoing targeting of tankers have deterred mainstream carriers, though Suez Canal traffic has edged higher to post-2024 peaks as select operators like MSC resume limited services. Elevated insurance costs, rerouting via the Cape of Good Hope, and the mix of sanctioned or shadow vessels create uncertainty around stabilization or further declines by end-September, driving closely matched market-implied odds across the 25–34 daily bins.

This market will resolve according to the 7-day moving average of transit calls (“Arrivals of Ships”) for the Bab el-Mandeb Strait that IMF Portwatch reports for September 30, 2026.

Transit calls include container, dry bulk, roll-on/roll-off, general cargo, and tanker ships. Ships not reported by IMF Portwatch will not be considered.

This market will resolve as soon as the relevant data has been published. If the relevant data is not published within 14 calendar days of the specified date, this market will resolve based on the most recent data published up to that point.

In case of obvious data integrity issues (i.e., erroneous data), the market may remain open until the end of the third calendar day (ET) after the date on which such data is first released to allow for corrections. Data integrity issues refer only to clerical or other similar errors in the underlying data, and do not include cases where IMF Portwatch differs from alternative sources.

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.
Volume
$2,090
End Date
Sep 30, 2026
Market Opened
Aug 26, 2026, 6:14 PM ET

Resolution Source

IMF PortWatch

Resolver

0x69c47De9D...
This market will resolve according to the 7-day moving average of transit calls (“Arrivals of Ships”) for the Bab el-Mandeb Strait that IMF Portwatch reports for September 30, 2026. Transit calls include container, dry bulk, roll-on/roll-off, general cargo, and tanker ships. Ships not reported by IMF Portwatch will not be considered. This market will resolve as soon as the relevant data has been published. If the relevant data is not published within 14 calendar days of the specified date, this market will resolve based on the most recent data published up to that point. In case of obvious data integrity issues (i.e., erroneous data), the market may remain open until the end of the third calendar day (ET) after the date on which such data is first released to allow for corrections. Data integrity issues refer only to clerical or other similar errors in the underlying data, and do not include cases where IMF Portwatch differs from alternative sources. 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.

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Frequently Asked Questions

"Avg. # of ships transiting Bab el-Mandeb Strait end of September?" is a prediction market on Polymarket with 5 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "30-34" at 27%, followed by "25-29" at 26%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 27¢ implies that the market collectively assigns a 27% 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.

"Avg. # of ships transiting Bab el-Mandeb Strait end of September?" is a newly created market on Polymarket, launched on Aug 26, 2026. As an early market, this is your opportunity to be among the first traders to set the odds and establish the market's initial price signals. You can also bookmark this page to track volume and trading activity as the market gains traction over time.

To trade on "Avg. # of ships transiting Bab el-Mandeb Strait end of September?," browse the 5 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 "Avg. # of ships transiting Bab el-Mandeb Strait end of September?" is "30-34" at 27%, meaning the market assigns a 27% chance to that outcome. The next closest outcome is "25-29" at 26%. 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 "Avg. # of ships transiting Bab el-Mandeb Strait end of September?" 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.