Recent Houthi threats and attacks amid broader Middle East escalation have kept war risk premiums elevated and stalled any sustained recovery in Bab el-Mandeb transits, with daily commodity vessel counts averaging around 25-27 as of early September. This environment favors the Cape of Good Hope route for most container and many tanker operators due to elevated operational hazards and insurance costs, limiting throughput to selective tanker and bulk movements. Trader consensus reflected in the 88.4% combined implied probability for sub-30 outcomes aligns with these persistent rerouting dynamics and the absence of near-term de-escalation catalysts before month-end.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedAvg. # of ships transiting Bab el-Mandeb Strait end of September?
<25 50.0%
25-29 39%
35-39 6%
30-34 5.2%
$16,874 Vol.
$16,874 Vol.
<25
50%
25-29
39%
30-34
5%
35-39
6%
40+
3%
<25 50.0%
25-29 39%
35-39 6%
30-34 5.2%
$16,874 Vol.
$16,874 Vol.
<25
50%
25-29
39%
30-34
5%
35-39
6%
40+
3%
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.
Market Opened: Aug 26, 2026, 6:14 PM ET
Resolution Source
IMF PortWatchResolver
0x69c47De9D...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.
Resolution Source
IMF PortWatchResolver
0x69c47De9D...Recent Houthi threats and attacks amid broader Middle East escalation have kept war risk premiums elevated and stalled any sustained recovery in Bab el-Mandeb transits, with daily commodity vessel counts averaging around 25-27 as of early September. This environment favors the Cape of Good Hope route for most container and many tanker operators due to elevated operational hazards and insurance costs, limiting throughput to selective tanker and bulk movements. Trader consensus reflected in the 88.4% combined implied probability for sub-30 outcomes aligns with these persistent rerouting dynamics and the absence of near-term de-escalation catalysts before month-end.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated

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