**Persistent low-volume transits amid Iranian enforcement and elevated risks define the market for any zero-ship day through the Strait of Hormuz.** Since the conflict escalation in late February 2026, daily commercial crossings have fallen to single digits or lower against a pre-disruption baseline of roughly 85–140 vessels, with multiple sources reporting zero outbound movements on recent dates such as 24 August and volumes at 3–4% of normal on 23 August. Iran’s Persian Gulf Strait Authority has blacklisted non-compliant tankers, issued turn-back orders, and restricted routes to those under its control, while war-risk premiums remain multiples of normal levels and major carriers have suspended or rerouted services. US naval facilitation of select passages and ongoing Iran-Oman route negotiations provide limited counterbalance, but dark (AIS-off) transits, residual mine hazards, and enforcement incidents sustain uncertainty. Scheduled diplomatic exchanges and potential further sanctions or strikes in the coming weeks could tighten or briefly ease conditions, directly affecting the probability of complete zero-transit days.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated0 ships transit Hormuz on any date by..?
$770,374 Vol.
August 31
15%
September 30
29%
$770,374 Vol.
August 31
15%
September 30
29%
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 IMF PortWatch publishes a daily number of transit calls equal to 0, or once complete data has been published for the specified period without such a publication. If complete data for the specified period has not been published within 28 calendar days of the end of the specified period, this market will resolve based on 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. Revisions to previously published data points made within this market’s timeframe will be considered. However, they will not disqualify a previously published data point from qualifying except in the case of data integrity issues.
The resolution source for this market will be IMF PortWatch, specifically the transit calls data published for the Strait of Hormuz at https://portwatch.imf.org/pages/cb5856222a5b4105adc6ee7e880a1730, both in the chart and through downloadable files.
Market Opened: Jul 29, 2026, 12:28 PM ET
Resolver
0x65070BE91...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 IMF PortWatch publishes a daily number of transit calls equal to 0, or once complete data has been published for the specified period without such a publication. If complete data for the specified period has not been published within 28 calendar days of the end of the specified period, this market will resolve based on 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. Revisions to previously published data points made within this market’s timeframe will be considered. However, they will not disqualify a previously published data point from qualifying except in the case of data integrity issues.
The resolution source for this market will be IMF PortWatch, specifically the transit calls data published for the Strait of Hormuz at https://portwatch.imf.org/pages/cb5856222a5b4105adc6ee7e880a1730, both in the chart and through downloadable files.
Resolver
0x65070BE91...**Persistent low-volume transits amid Iranian enforcement and elevated risks define the market for any zero-ship day through the Strait of Hormuz.** Since the conflict escalation in late February 2026, daily commercial crossings have fallen to single digits or lower against a pre-disruption baseline of roughly 85–140 vessels, with multiple sources reporting zero outbound movements on recent dates such as 24 August and volumes at 3–4% of normal on 23 August. Iran’s Persian Gulf Strait Authority has blacklisted non-compliant tankers, issued turn-back orders, and restricted routes to those under its control, while war-risk premiums remain multiples of normal levels and major carriers have suspended or rerouted services. US naval facilitation of select passages and ongoing Iran-Oman route negotiations provide limited counterbalance, but dark (AIS-off) transits, residual mine hazards, and enforcement incidents sustain uncertainty. Scheduled diplomatic exchanges and potential further sanctions or strikes in the coming weeks could tighten or briefly ease conditions, directly affecting the probability of complete zero-transit days.
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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