RiskEvents
ClosedHigh impactAI Generated

Strait of Hormuz Closure Drives US Manufacturing PMI to 4-Year High

Occurred 28 Feb 2026·Detected 1 Jun 2026·
🇮🇷 Strait of Hormuz, Persian Gulf chokepoint between Iran and Oman; economic effects reported from Washington DC19 reportsCAT 26AAEnded 8 Jun 2026
MarinePolitical Violence & WarEnergy & InfrastructurePolitical RiskAviationWar & Armed ConflictTrade DisruptionPropertyMarine HullMarine CargoAviationEnergyTerrorism & Political ViolencePolitical RiskWar Risk

The US ISM Manufacturing PMI jumped to 54.0 in May 2026, its highest level since May 2022, driven by companies front-loading purchases amid supply chain disruptions caused by the closure of the Strait of Hormuz following the US-Israeli war against Iran. The closure has caused severe disruption to shipping of essential commodities including energy, aluminium, and fertilizers, with supplier delivery times stretched to 60.6 points. This supply chain stress and attendant inflation—with the prices-paid index at 82.1—has significant implications for marine cargo, energy, and war risk books in the London market.

AI-generated from linked source reports. See our correction policy.

Part of:Middle East Regional Conflict and Insurance Market Disruption (2026)(256 related events)

Impact verdict

High impact. Loss pathway: Confirmed closure of the Strait of Hormuz—a JWC listed area and one of the world's critical shipping chokepoints—directly engages Marine Hull, Marine Cargo, and War Risk books across multiple Lloyd's syndicates. Evidence: Article explicitly states the US-Israeli war against Iran has closed the Strait of Hormuz, causing acute disruption to shipping of energy, aluminium, and fertilizers; supplier delivery index at 60.6 and prices-paid at 82.1 confirm ongoing systemic supply chain stress. Limit: This is an economic and supply-chain impact article; no specific vessel casualties, insured loss quantum, or claims figures are cited, but the strait closure alone is sufficient to trigger war risk additional premiums, JWC listed area notifications, and potential reinsurance reserving actions.

View assessment methodology

How we grade what we know -- Known · Reported · Uncertain. Methodology →

Intelligence ledger

Each line expands in place to its underlying sourced claim.

Known7 lines

US ISM Manufacturing PMI rose to 54.0 in May 2026, highest since May 2022▾
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No separate sourced-claim record is available for this line yet.
The Strait of Hormuz has been closed as a consequence of the US-Israeli war against Iran▾
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No separate sourced-claim record is available for this line yet.
Supplier delivery index at 60.6, indicating severe supply chain delays▾
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No separate sourced-claim record is available for this line yet.
Prices-paid index at 82.1, near highest levels since April 2022▾
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No separate sourced-claim record is available for this line yet.
US inflation reached its fastest pace in three years in April 2026▾
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No separate sourced-claim record is available for this line yet.
US Federal Reserve expected to hold rates at 3.50-3.75% into next year▾
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No separate sourced-claim record is available for this line yet.
US manufacturing has shed approximately 77,000 jobs since January 2025▾
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No separate sourced-claim record is available for this line yet.

Reported4 lines

Hormuz closure causing acute disruption to shipping of energy, aluminium, and fertilizers▾
structured linereported
No separate sourced-claim record is available for this line yet.
Companies accelerating purchase orders ahead of expected supply shortages and price jumps▾
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New orders index rose to 56.8 in May from 54.1 in April▾
structured linereported
No separate sourced-claim record is available for this line yet.
Export orders also showing increase alongside backlog build-up▾
structured linereported
No separate sourced-claim record is available for this line yet.

Uncertain4 lines

Duration and full scope of the Strait of Hormuz closure▾
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No separate sourced-claim record is available for this line yet.
Specific vessels or cargo shipments affected or detained▾
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No separate sourced-claim record is available for this line yet.
Whether any insured losses have been formally reported or claimed▾
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No separate sourced-claim record is available for this line yet.
Scale of war risk premium adjustments by Lloyd's market underwriters▾
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No separate sourced-claim record is available for this line yet.

Geographic Zone Matches

14 active matches

  • Oman (12nm coastal buffer)
    Rule-basedConfidence 100%
  • OFAC Sanctioned Countries
    Rule-basedConfidence 100%
  • United Arab Emirates (12nm coastal buffer)
    Rule-basedConfidence 100%
  • TRIA Certified Areas
    Rule-basedConfidence 100%
  • JWC Listed Areas
    Rule-basedConfidence 100%
  • Kuwait (12nm coastal buffer)
    Rule-basedConfidence 100%
  • EU Sanctions List
    Rule-basedConfidence 100%
  • Iran (12nm coastal buffer)
    Rule-basedConfidence 100%
  • Saudi Arabia (12nm coastal buffer)
    Rule-basedConfidence 100%
  • Qatar (12nm coastal buffer)
    Rule-basedConfidence 100%
  • Israel (12nm coastal buffer)
    Rule-basedConfidence 100%
  • Pacific Ring of Fire
    Rule-basedConfidence 100%
  • Persian/Arabian Gulf, Gulf of Oman, Indian Ocean, Gulf of Aden and Southern Red Sea
    Rule-basedConfidence 100%
  • Caribbean Hurricane Zone
    Rule-basedConfidence 100%

Geographic zone matches are RiskEvents spatial/analytical indicators, not coverage determinations or Lloyd's official classifications.

Affected countries

🇨🇳 China🇧🇭 Bahrain🇮🇷 Iran🇺🇸 United States🇮🇱 Israel🇦🇪 United Arab Emirates🇸🇦 Saudi Arabia🇶🇦 Qatar

+9 more

Timeline

Status Change10 Jun 2026, 04:30

Lifecycle changed

monitoring -> closed

Closure10 Jun 2026, 04:30

Event Closed

auto_closed_monitoring_timeout

Status Change1 Jun 2026, 23:30

Status changed to monitoring

Auto-transitioned: no updates for 6 hours

active → monitoring

Status Change1 Jun 2026, 17:14

Status changed to active

evidence_trigger: developing_promotion

developing → active

Corroboration1 Jun 2026, 17:14

A US blockade of Kharg Island, Iran's primary oil export terminal, has caused a collapse in Iranian oil exports despite record volumes being redirected through the Jask terminal. Infrastructure constraints at Jask severely limit the bypass capacity, meaning total Iranian crude export volumes remain heavily depressed. This has significant implications for Energy and Political Risk books covering Iranian oil infrastructure, sanctions-linked exposures, and Persian Gulf energy flows.

Source: Energy Intelligence (Trade Media) · View source

Status Change1 Jun 2026, 16:24

Status changed to developing

evidence_trigger: corroboration >= 2

signal → developing

Corroboration1 Jun 2026, 16:24

The Dutch government has approved a €993 million subsidy for state-owned EBN Capital BV to replenish severely depleted gas reserves, with storage currently at under 16% capacity compared to 36% last year. The intervention follows a 50% surge in European gas prices attributed to the Iran War and effective closure of the Strait of Hormuz, which has disrupted LNG flows. Additionally, Vopak and Gasunie have conditionally agreed to extend the Eemshaven LNG terminal operation to 2036.

Source: Rigzone (Trade Media) · View source

Initial Detection1 Jun 2026, 15:14

Initial Detection

The US ISM Manufacturing PMI jumped to 54.0 in May 2026, its highest level since May 2022, driven by companies front-loading purchases amid supply chain disruptions caused by the closure of the Strait of Hormuz following the US-Israeli war against Iran. The closure has caused severe disruption to shipping of essential commodities including energy, aluminium, and fertilizers, with supplier delivery times stretched to 60.6 points. This supply chain stress and attendant inflation—with the prices-paid index at 82.1—has significant implications for marine cargo, energy, and war risk books in the London market.

تأتي هذه الطفرة الإنتاجية في وقت أدت فيه الحرب الأميركية الإسرائيلية ضد إيران إلى إغلاق مضيق هرمز، مما تسبب في اضطرابات حادة في شحن السلع الأساسية وارتفاع تكلفة منتجات حيوية مثل الطاقة والألمنيوم والأسمدة.

Source: Asharq Al-Awsat (Arabic) (Mainstream Media) · View source

Lloyd's classifications

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