Recent Houthi maritime blockades and attacks on vessels in early August 2026 triggered sharp drops in Bab el-Mandeb transits, with daily commodity ship crossings falling to single digits on some days per Kpler data before partial stabilization around 20-30 vessels. This security-driven rerouting around the Cape of Good Hope, elevated war-risk insurance premiums, and tanker traffic declines of up to 40% underpin trader consensus favoring the 25-34 daily average band, where the two leading outcomes trade within seven percentage points. Uncertainty around near-term de-escalation or renewed threats creates competitive positioning between those ranges, as markets price in probabilities rather than certainties ahead of end-August resolution.
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 August?
30-34 39%
25-29 32%
<25 23.3%
35-39 7%
$26,848 Vol.
$26,848 Vol.
<25
23%
25-29
32%
30-34
39%
35-39
7%
40+
3%
30-34 39%
25-29 32%
<25 23.3%
35-39 7%
$26,848 Vol.
$26,848 Vol.
<25
23%
25-29
32%
30-34
39%
35-39
7%
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: Jul 31, 2026, 2:13 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 maritime blockades and attacks on vessels in early August 2026 triggered sharp drops in Bab el-Mandeb transits, with daily commodity ship crossings falling to single digits on some days per Kpler data before partial stabilization around 20-30 vessels. This security-driven rerouting around the Cape of Good Hope, elevated war-risk insurance premiums, and tanker traffic declines of up to 40% underpin trader consensus favoring the 25-34 daily average band, where the two leading outcomes trade within seven percentage points. Uncertainty around near-term de-escalation or renewed threats creates competitive positioning between those ranges, as markets price in probabilities rather than certainties ahead of end-August resolution.
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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