Hormuz Commodity Traffic Remains Severely Depressed, but the Five-Day Data Gap Blocks a Total-Transit Closure Call

Bottom Line

The Strait of Hormuz remains the principal near-term maritime risk. Kpler data reported by Reuters show five commodity-vessel crossings on 7 November and none on 8 November, but the supplied material has no like-for-like count for 9-13 November. The evidence supports severely depressed commodity movement, not the prior forecast that total commercial traffic would remain below the 85-vessel IMF PortWatch benchmark.

Assessment: there is a 60% probability, likely but with low confidence, that commodity-vessel crossings remain below 10 in each of the next three 24-hour periods. A formal Iranian closure remains unlikely at 10% over 14 days, with moderate confidence. The central risk is continued vessel avoidance and maritime enforcement without a declared closure.

Key Developments

Hormuz traffic data are stale and use a different denominator from the prior benchmark

Reported fact: Reuters cited Kpler data showing five commodity-vessel crossings through Hormuz on 7 November and zero on 8 November, compared with 31 over the preceding weekend. These figures cover commodity vessels. The supplied material does not provide a 9-13 November Kpler, IMF PortWatch or JMIC count.

Assessment: The figures support sharply reduced commodity movement, but they cannot support a probability estimate for total commercial traffic below 85 vessels. IMF PortWatch, JMIC and Kpler counts are not demonstrated to cover the same vessel population or use the same counting method. Confidence in the like-for-like commodity forecast is low because the last observation is five days old.

Maritime incidents are corroborated, but the tanker-fire cause remains unresolved

Reported fact: Reporting linked to the International Maritime Organization gives 133 confirmed maritime incidents and 25 seafarer deaths by 10 November in one account. Another account gives 130 incidents. Reuters verified imagery and satellite evidence of the Navig8 tanker burning off Oman on 8 November.

Assessment: A verified tanker fire and the incident tally support a high-risk maritime environment. They do not establish who caused the fire. Iranian Revolutionary Guard Corps Navy accounts differ over the number and dates of tanker incidents. Further commercial-vessel disruption near Hormuz is likely at 70% over 14 days, with moderate confidence.

US Central Command reports active enforcement, but the term blockade is not independently established

Reported fact: US Central Command says US forces are enforcing what it calls a blockade of Iranian ports while keeping the Strait open. CENTCOM also reported that a US aircraft disabled a St Kitts-flagged cargo vessel after it visited an Iranian port and attempted to leave regional waters. The supplied reporting does not identify the means used, the location, the vessel name or independent confirmation.

Assessment: CENTCOM's statement supports an active US enforcement posture, but the supplied evidence does not establish the operation's daily coverage or adopt blockade as an independent legal description. Vessels linked to Iranian ports face an elevated interdiction risk. The US enforcement posture is likely to continue over 14 days, but confidence is low because the evidence is party-generated and operational details are incomplete.

Houthi-Saudi exchanges continue without a verified Bab al-Mandab merchant-vessel attack

Reported fact: The Saudi-led coalition reported interceptions of three cruise missiles, two ballistic missiles and drones directed towards Riyadh and western Saudi Arabia on 11-12 November. Houthi spokesman Yahya Saree claimed attacks on King Khalid International Airport and Yanbu Pumping Station No. 11. The supplied reporting does not verify damage at either site. Separate reports describe explosions in Aden's Al-Buraiqa district.

Assessment: Houthi-Saudi exchanges are likely at 70% over 14 days, with moderate confidence. A confirmed Houthi attack on a merchant vessel in Bab al-Mandab is unlikely at 30%, with low confidence. The Yemen reporting establishes direct risk to Saudi targets and Aden, not a functioning Houthi blockade of Red Sea shipping. No evidence in the supplied material links these attacks causally to the fall in Hormuz traffic.

Gaza's shelter emergency remains severe after the Nasser Hospital strike

Reported fact: Reuters and other major-media reports say the 12 November Israeli strike on Nasser Hospital in Khan Younis killed six people, including a doctor and a child, and wounded at least 12. The Israel Defence Forces said the target was Hamas commander Mohammed Abu Ismail and alleged Hamas use of the hospital. Hospital officials disputed the account of Hamas use and advance warning. The UN reports about 1.4 million people in tents or makeshift shelters. More than 150,000 tents are reportedly ready for delivery.

Assessment: Gaza's shelter emergency is very likely to remain severe at 90% over the next 30 days, with moderate confidence. A further hospital or shelter strike is likely at 60% over the same period, with moderate confidence. The causes of aid delays and the number of tents delivered remain low confidence because the Israeli Defence Forces, the Board of Peace, UNICEF and hospital officials provide conflicting accounts.

Analysis

Continuity with the 12 November briefing

The assessment changes in method and in confidence, but not in the direction of the central risk.

The new tanker evidence justifies retaining a high maritime-risk assessment, but it does not justify raising confidence in the traffic forecast. It confirms that at least one tanker was burning. It does not provide a current traffic count, establish the attacker or demonstrate that the 7-8 November commodity-vessel pattern continued through 13 November.

Causal pathways and stakeholder effects

The direct mechanism affecting Hormuz traffic is vessel avoidance, insurance exposure and US-Iran maritime enforcement. The Navig8 fire and the reported incident tally increase the perceived cost of transit. CENTCOM's stated enforcement posture adds a risk of interdiction for vessels linked to Iranian ports. Together, these mechanisms can reduce traffic without an Iranian declaration.

The Houthi-Saudi exchanges have a separate direct mechanism at Bab al-Mandab. The supplied reporting shows missile and drone exchanges directed at Saudi targets, but no verified merchant-vessel hit in the Red Sea. The Nasser Hospital strike has a direct effect on Gaza's surgical capacity and shelter emergency. Neither event is shown to have caused the Hormuz traffic decline. Their relevance to the Hormuz forecast is contextual: a further strike involving Iran, Saudi Arabia, Israel or US forces would increase the probability of vessel avoidance and force-protection measures.

For ADNOC and other UAE-based exporters using Fujairah and Khor Fakkan, the immediate operational consequence is a higher risk of delayed loading, rerouting and vessels remaining at anchor. For CENTCOM, JMIC and UKMTO, the key information gap is a current count using a defined vessel population. For Indian, Japanese and South Korean refiners, the near-term exposure is freight and delivery uncertainty rather than a verified interruption of all Gulf exports. For Nasser Hospital and UN agencies operating in Gaza, the immediate consequence is reduced medical capacity and continued shelter demand, irrespective of the unresolved targeting dispute.

Source quality and traceability

The 22-brief source pool contains 47 entries assessed as reliable, 46 as usually reliable, 14 as fairly reliable, 22 as not usually reliable and 22 as unreliable. The central Hormuz assessment relies mainly on professional commercial tracking, Reuters verification, JMIC reporting and official maritime statements. Confidence is reduced where the reporting is stale, party-generated or not independently corroborated.

The principal source trail is as follows:

• JMIC Maritime Security Centre advisory dated 12 November: primary maritime-security reporting. It rates the wider Middle East Maritime Region as severe, but the supplied material does not provide a current all-vessel transit count. Reliability is high for the advisory's own threat assessment and incident reporting, but not for facts outside its reporting scope.
• Reuters reporting on Kpler vessel counts, supplied for 12 November: secondary reporting of professional commercial tracking. The figures refer to 7 and 8 November and commodity vessels. Reliability is high for the figures as reported, but the five-day gap limits forecasting value.
• Reuters reporting verifying the Navig8 tanker fire, supplied for 12 November: secondary reporting supported by imagery and satellite evidence. Reliability is high for the existence and location of the fire, but not for attacker attribution.
• International Maritime Organization incident figures, as relayed in supplied reporting dated 10-12 November: official data cited through secondary accounts. Reliability is moderate to high for the existence of an incident tally, but the 130 and 133 totals differ and the original IMO release is not included.
• US Central Command statement, date not supplied in the record: primary reporting on US actions and official characterisation of the naval posture. Reliability is moderate for actions involving US forces and low to moderate for the scope and legal characterisation of the operation because no independent account is supplied.
• Saudi-led coalition statements and Houthi spokesman Yahya Saree's statements from 11-12 November: primary reporting by directly involved parties. Reliability is moderate for the fact that the statements were issued and low for claimed damage and operational effects without independent confirmation.
• UN reporting on Gaza's shelter population, UNICEF material and reporting from the Board of Peace, supplied for the current briefing: official and humanitarian reporting. Reliability is high for the reported shelter estimate and moderate for the explanation of aid delays because Israeli and humanitarian accounts conflict.
• Reuters and other major-media reporting on the 12 November Nasser Hospital strike: multiple reports corroborate the strike and casualty figure. Reliability is high for the strike and reported deaths, and moderate for the target, warning and alleged Hamas use because those claims remain disputed.

Indicators & Warnings

• Like-for-like Hormuz traffic update: Baseline is five commodity-vessel crossings on 7 November and zero on 8 November. Check JMIC, UKMTO, Kpler and IMF PortWatch every 12 hours. A current commodity count below 10 for three consecutive 24-hour periods would support continued severe disruption. A current all-vessel count using the IMF PortWatch definition is required before revisiting the 85-vessel comparison. Horizon: next 24-72 hours.
• Formal Iranian closure: Watch Iranian Ports and Maritime Organisation notices, Iranian Navy statements, JMIC advisories and UKMTO notices for an official denial of passage, a navigation-area closure or three consecutive zero-transit periods. An official denial raises the formal-closure scenario; continued movement without a notice lowers it. Horizon: next 24-14 days.
• Selective Iranian coercion: Watch for named vessels reporting boarding, inspection, escort or permit requirements, AIS gaps tied to a specific ship and traffic changes by flag, cargo or operator. Two independently corroborated vessel-specific cases would raise the selective-coercion scenario. Horizon: next 24-14 days.
• Commercial de facto closure: Watch for three major war-risk insurers or P&I clubs withdrawing cover, two named operators announcing rerouting or anchorage numbers near Fujairah and Khor Fakkan rising above the previous briefing's approximately 162 vessels. These observations would raise the de facto-closure scenario without requiring an Iranian order. Horizon: next 24-14 days.
• Additional merchant-vessel casualty: Watch JMIC, UKMTO, Reuters, satellite imagery and vessel operators for a second independently verified tanker fire, boarding, missile impact, mine incident or disabling event that identifies the vessel, location and damage. A second verified casualty raises the further-attack and de facto-closure estimates. Horizon: next 24 hours-14 days.
• Direct Israel-Iran or US-Iran escalation: Watch for an Israeli cabinet or Defence Forces order, reserve mobilisation, strike-aircraft or tanker movements, US force-protection alerts, diplomatic-facility evacuation notices, Iranian missile-unit dispersal or airspace closure. Multiple indicators within 72 hours raise the direct-strike scenarios. Horizon: next 72 hours-14 days.
• Houthi expansion into Red Sea commercial traffic: Watch for a Houthi statement naming a merchant vessel, a JMIC or UKMTO attack report in Bab al-Mandab or a sustained fall in Red Sea transits independent of Hormuz. A named merchant-vessel casualty raises the Houthi merchant-attack estimate above 30%. Horizon: next 72 hours-14 days.
• Gaza humanitarian deterioration: Watch UN reporting, UNICEF and named medical facilities for another hospital or shelter strike, suspension of surgical services at another facility or additional flooding of tented areas. Two such events within seven days raise the 60% deterioration estimate. Horizon: next 72 hours-30 days.
• Gaza humanitarian improvement: Watch for UN or UNICEF confirmation that the reported 150,000 tents have entered Gaza and reached displaced families, or that stormwater equipment has entered and restored a named facility such as Sheikh Radwan's basin. Verified distribution, rather than an announcement, lowers the estimate for persistent shelter severity. Horizon: next 72 hours-30 days.
• Russia-Ukraine diplomatic movement: Watch the governments of Ukraine, Russia and the US for a signed ceasefire text, an announced prisoner exchange with dates and names, another senior-level US-Russia meeting or a new Russian strike wave against named Ukrainian power facilities. A signed text raises the 15% ceasefire estimate; a new strike wave lowers it. Horizon: next 72 hours-14 days.

Alternatives

Severely depressed but continuing commodity traffic through Hormuz, 60% likely

This is the central traffic state over the next 72 hours. It is consistent with five commodity-vessel crossings on 7 November, zero on 8 November, the verified Navig8 tanker fire and the absence of an Iranian closure notice. Confidence is low because the last observation is five days old. A current commodity count below 10 per 24 hours with at least one vessel still transiting would support this scenario.

Formal Iranian state-declared closure, 10% very unlikely

The supplied reporting records no official Iranian denial of passage. An Iranian navigation notice, denial of passage by Iranian authorities or three consecutive zero-transit periods would materially raise this scenario. This state is distinct from commercial withdrawal without an Iranian order.

Commercial de facto closure through owner avoidance or insurance withdrawal, 20% unlikely

A second verified tanker casualty, withdrawal of war-risk cover and owner rerouting could reduce traffic to near zero without an Iranian declaration. Three major insurers or P&I clubs withdrawing cover, or two major operators announcing rerouting, would distinguish this scenario from selective state coercion. Confidence is low because no current premium or tanker-availability data are supplied.

Rapid traffic recovery without a formal reopening announcement, 10% very unlikely

This scenario requires no further verified vessel casualty, moderated US-Iran rhetoric and continued insurance availability. A sustained all-vessel count above the IMF PortWatch benchmark, a commodity count returning to the preceding weekend's level and falling anchorage numbers near Fujairah and Khor Fakkan would support it. No such current evidence is supplied.

Outlook

Over the next 72 hours, there is a 60% probability, likely but with low confidence, that commodity-vessel crossings through Hormuz remain below 10 in each 24-hour period. This is an analytical proxy, not a forecast of total commercial traffic. We withdraw the prior 70% estimate for total commercial traffic below 85 because the observed count and benchmark do not use a demonstrated common denominator.

A formal Iranian closure is unlikely at 10% over 14 days, with moderate confidence. Selective state coercion is likely at 60%, with low confidence. A commercial de facto closure is unlikely at 20%, with low confidence. Further attacks or disabling incidents involving commercial vessels near Hormuz are likely at 70%, with moderate confidence.

A direct US kinetic strike on Iran is unlikely at 20% over the next 72 hours, with moderate confidence, and remains unlikely at 35% by 24 November, with low confidence. A direct Israeli strike on Iran is a roughly even chance at 50% over 14 days, with low confidence. Houthi-Saudi exchanges are likely at 70% over 14 days, with moderate confidence, while a confirmed Houthi merchant-vessel attack in Bab al-Mandab is unlikely at 30%, with low confidence.

Gaza's shelter emergency is very likely to remain severe at 90% over 30 days, with moderate confidence. A further hospital or shelter strike is likely at 60%, with moderate confidence. Russian strikes on Ukrainian energy infrastructure are likely at 70% by 24 November, with moderate confidence, while a Russia-Ukraine ceasefire or territorial settlement is unlikely at 15% over 14 days, with moderate confidence.

Severity methodology

The severity components use a 0-100 ordinal scale anchored to the 12-13 November reporting window. A score of 0 represents no active disruption in the component; 50 represents sustained regional disruption with limited cross-border effects; 100 represents a systemic global crisis. The scores measure severity, not probability, and are not calculated from the outlook probabilities. The same anchors are used for day-to-day comparison.

Alternatives

The four traffic-state alternatives above are mutually exclusive for the dominant operational condition during the next 72 hours and sum to 100%. Selective Iranian coercion, a direct strike and Houthi-Saudi exchanges are conditional developments that can occur within more than one traffic state, so they are assessed separately rather than included in that sum.