Recent Houthi attacks, including fatal strikes on August 11, and the July 20 Saudi shipping blockade have sustained elevated war-risk premiums above 1% of vessel value, yet Bab el-Mandeb transits proved resilient with weekly totals rising to 254 for 10–16 August from 238 the prior week. Daily crossings averaged 36–41 vessels amid a mix of sanctioned, shadow-fleet, and compliant traffic, reflecting selective avoidance by major container lines alongside continued tanker movements of Saudi crude from Yanbu and Russian volumes to Asia. These volumes, supported by carve-outs for certain flag states and limited rerouting to the Cape or Suez, position 200+ transits as the consensus outcome for the week of August 17 while allowing for downside risk if attacks intensify or insurance markets tighten further.
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 17?
200+ 63%
180-199 22%
160-179 13%
<160 3.4%
$23,437 Vol.
$23,437 Vol.
<160
3%
160-179
13%
180-199
22%
200+
63%
200+ 63%
180-199 22%
160-179 13%
<160 3.4%
$23,437 Vol.
$23,437 Vol.
<160
3%
160-179
13%
180-199
22%
200+
63%
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 14, 2026, 5:29 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...Recent Houthi attacks, including fatal strikes on August 11, and the July 20 Saudi shipping blockade have sustained elevated war-risk premiums above 1% of vessel value, yet Bab el-Mandeb transits proved resilient with weekly totals rising to 254 for 10–16 August from 238 the prior week. Daily crossings averaged 36–41 vessels amid a mix of sanctioned, shadow-fleet, and compliant traffic, reflecting selective avoidance by major container lines alongside continued tanker movements of Saudi crude from Yanbu and Russian volumes to Asia. These volumes, supported by carve-outs for certain flag states and limited rerouting to the Cape or Suez, position 200+ transits as the consensus outcome for the week of August 17 while allowing for downside risk if attacks intensify or insurance markets tighten further.
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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