Geopolitical tensions stemming from Houthi maritime threats and a July 2026 blockade targeting Saudi-linked vessels have driven sustained reductions in Bab el-Mandeb transits, positioning the 220+ outcome as the market leader with 35% implied probability amid partial stabilization. Weekly volumes fell from over 350 pre-blockade to the 260-270 range by late July, with preliminary data showing daily commodity ship counts rebounding modestly to 37-39 at peaks but remaining pressured by attack risks and rerouting. Trader consensus reflects uncertainty over escalation in the ongoing Iran-related conflict, with the 160-179 bin at 19.5% capturing potential for further dips if incidents intensify near the August 24 resolution week. This aggregates real-capital bets on supply-chain impacts rather than forecasts, with upcoming catalysts including any new Houthi statements or naval responses.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHow many ships transit Bab el-Mandeb Strait week of August 24?
220+ 35%
160-179 20%
<160 19%
200-219 18%
$13,083 Vol.
$13,083 Vol.
<160
19%
160-179
20%
180-199
13%
200-219
18%
220+
35%
220+ 35%
160-179 20%
<160 19%
200-219 18%
$13,083 Vol.
$13,083 Vol.
<160
19%
160-179
20%
180-199
13%
200-219
18%
220+
35%
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 all 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.
Only revisions to previously published data points made before all relevant data has been published will 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.
Market Opened: Aug 21, 2026, 3:08 PM ET
Resolver
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 all 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.
Only revisions to previously published data points made before all relevant data has been published will 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.
Resolver
0x69c47De9D...Geopolitical tensions stemming from Houthi maritime threats and a July 2026 blockade targeting Saudi-linked vessels have driven sustained reductions in Bab el-Mandeb transits, positioning the 220+ outcome as the market leader with 35% implied probability amid partial stabilization. Weekly volumes fell from over 350 pre-blockade to the 260-270 range by late July, with preliminary data showing daily commodity ship counts rebounding modestly to 37-39 at peaks but remaining pressured by attack risks and rerouting. Trader consensus reflects uncertainty over escalation in the ongoing Iran-related conflict, with the 160-179 bin at 19.5% capturing potential for further dips if incidents intensify near the August 24 resolution week. This aggregates real-capital bets on supply-chain impacts rather than forecasts, with upcoming catalysts including any new Houthi statements or naval responses.
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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