Strait of Hormuz Risk Monitor

Strait of Hormuz Risk Gauge — Live Closure Index 2026 | HormuzMonitor
Breaking March 21, 2026 — Tanker traffic through Strait of Hormuz near zero following Operation Epic Fury  |  Brent crude at $103/bbl  |  IRGCN declares strait closed to US, Israeli and allied-flagged vessels  |  150+ tankers anchored outside strait  |  Qatar declares force majeure on LNG exports  |  IEA releases emergency 400M barrel SPR tranche
Live intelligence — updated daily

Strait of Hormuz
Risk Gauge

The world’s most important energy chokepoint is in active crisis. Track closure risk in real time — IRGCN threat level, tanker insurance rates, naval presence, and the probability of three distinct scenarios as the 2026 confrontation unfolds.

LOW HIGH CRIT
87
Critical — Strait Closed
Active Closure / Conflict
Updated loading…
~0Tanker transits/day
(vs 24 avg Jan)
$103Brent crude/bbl
Mar 21, 2026
150+Tankers anchored
outside the strait
20%Global oil supply
affected daily
21MBarrels/day blocked
at peak closure
About this tool

What Is the Strait of Hormuz Risk Gauge?

The Strait of Hormuz Risk Gauge is a composite real-time index published by HormuzMonitor.com measuring the current probability of a partial or complete closure of the Strait of Hormuz to commercial shipping. It combines six weighted indicators — drawn from open-source intelligence, maritime AIS data, insurance market data, and geopolitical analysis — into a single score from 0 to 100.

The gauge answers the most important question for investors, energy analysts, logistics professionals, and geopolitical researchers: how close are we, right now, to an oil supply disruption of historic magnitude?

Current Status — March 21, 2026

The gauge reads 87 / 100 (Critical). The Strait of Hormuz is effectively closed to US, Israeli, and Western-allied commercial shipping following Operation Epic Fury on February 28. Brent crude has surpassed $100/bbl. Over 150 tankers are anchored outside the strait. Qatar has declared force majeure on LNG production.

How the Score Is Calculated

Each of the six indicators is scored 0–100 based on observable, verifiable data, then weighted by its historical correlation with shipping disruption events. The weights below reflect the relative importance of each factor in predicting actual transit suspension:

IRGCN operational activity (25%)
92 — Active Operations
Based on vessel AIS signals, IRGCN press statements, and reported incident frequency. Currently at highest level since 2019.
Tanker war-risk insurance (20%)
95 — Market Withdrawn
War-risk P&I insurance removed by clubs as of March 5. Premiums hit six-year highs before market suspension entirely.
US/allied naval presence (20%)
75 — Significant Surge
USS Tripoli and additional Fifth Fleet assets en route. Escort capacity estimated 3–4 ships/day with 7–8 destroyers providing cover.
Diplomatic channel activity (15%)
18 — Stalled
Back-channel contacts reported but unconfirmed. Iranian operatives reportedly reached out via NYT but no formal talks.
Nuclear talks status (10%)
5 — Completely Stalled
Geneva talks collapsed prior to Operation Epic Fury. Supreme Leader deceased. Succession dynamics remain unclear.
Proxy network activation (10%)
85 — Fully Active
Houthi, Lebanese Hezbollah, and Iraq-based militia operations all reported active since February 28.
Strategic context

Why the Strait of Hormuz Risk Gauge Matters Right Now

The 2026 Strait of Hormuz crisis is not a hypothetical scenario. It is a live event — and it is, by every measurable metric, the largest disruption to global energy supply since the 1970s oil crisis. Understanding the current risk level has direct, immediate financial and strategic consequences for every economy on earth.

“The current shock strands 20% of global oil demand and 20% of global gas exports simultaneously — creating a just-in-time fragility that traditional energy security architectures are ill-equipped to manage.”

— Horizon Analysis / Economic Clock of War, March 2026

Brent crude surpassed $100 per barrel on March 8, 2026 — the first time in four years — rising to $126/bbl at peak, as tanker traffic through the strait collapsed by over 83% in a single day following the February 28 strikes. Crude tanker transits fell to just four vessels on March 1, compared with an average of 24 per day since January. Three of the four were Iran-flagged.

Score Reference Guide — What Each Level Means

ScoreStatusInvestor ImplicationSupply Chain Action
0–25LowNormal energy market conditionsStandard transit, normal insurance
26–50ModerateEnergy equity premium justifiedMonitor insurance premium upticks
51–75ElevatedOil long positions, hedge supply exposureDiversify routing, build buffer inventory
76–90HighSignificant price spike likely within weeksActivate contingency supply plans now
91–100CriticalHistoric supply shock underwayFull contingency activation, Cape routing
Situation report

The Strait of Hormuz in March 2026 — Live Situation

On March 2, 2026, a senior IRGC official confirmed that the strait was closed and threatened any ship attempting transit. The closure followed the February 28 launch of Operation Epic Fury — coordinated US-Israeli airstrikes targeting Iranian military facilities, nuclear sites, and leadership. On March 5, Iran announced the closure applied only to US, Israeli, and Western-allied vessels, with confirmed exceptions for Turkish, Indian, and some Gulf shipping.

The warnings and subsequent attacks on vessels caused tanker traffic to drop first by approximately 70%, with over 150 ships anchoring outside the strait. Soon afterwards traffic dropped to effectively zero. The disruption affected approximately 20% of the world’s daily oil supply and significant volumes of LNG, prompting major shipping firms to suspend all operations in the corridor.

Insurance Market Alert

Protection and indemnity insurance war risk was removed for March 5, making the economic risk too high for virtually all ship owners to use the strait. War-risk premiums had already reached a six-year high before the market effectively withdrew coverage entirely, creating a situation with no commercial insurance framework for transit regardless of a vessel’s flag.

Pipeline Alternatives: Partial, Insufficient

Saudi Arabia is increasingly diverting oil via the East–West Crude Oil Pipeline to the Red Sea port of Yanbu, while the UAE is routing via the Abu Dhabi Crude Oil Pipeline to Fujairah. However, the combined capacity of these alternatives — an estimated 3.5–5.5 million barrels per day — represents roughly 25% of normal Hormuz throughput of 20 million bpd. The Red Sea route is also exposed to potential Houthi attacks.

The US Strategic Petroleum Reserve held 415.4 million barrels as of February 18, 2026 — with maximum drawdown capacity of 4.4 million barrels per day, covering less than 25% of lost Hormuz flow. Even at peak release rates, the SPR cannot offset simultaneous oil and LNG supply disruptions at the scale currently underway.

LNG: The Compounding Crisis Within the Crisis

Unlike the 1973 embargo — which affected only oil — the 2026 closure simultaneously disrupts approximately 20% of global LNG trade. Qatar has declared force majeure and halted production following drone strikes on the Ras Laffan complex, the world’s largest LNG export facility. This is catastrophic for Asia, which relies on the Strait for 27% of its total LNG imports. Unlike crude oil, which benefits from established strategic reserves, LNG operates on a logistics-heavy, inventory-lean model with no meaningful buffer capacity.

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Economic exposure

Which Countries Face the Greatest Hormuz Closure Risk?

The majority of crude oil shipped through the Strait of Hormuz goes to Asia, with China, India, Japan, and South Korea accounting for nearly 70% of shipments. These nations face not just higher prices but physical supply constraints that no financial hedging can fully offset. Their exposure is both direct — oil and LNG physically blocked — and financial, through Brent-indexed contract repricing.

CountryHormuz Oil DependencyLNG ExposureVulnerability
Japan~90% of crude importsHigh — Qatar LNGExtreme
South Korea~85% of crude importsHighExtreme
India~60% of crude importsHigh — 50%+ Gulf-linkedCritical
China~40% of crude importsModerate — ~30% from GulfHigh
ThailandSignificant; 4.7% GDP net importsModerateHigh
EuropeDeclining direct; high via priceHigh — post-2022 LNG pivotElevated
United States~7% of crude imports directLow directModerate via price

India faces the largest combined exposure in the region. More than half of its LNG imports are Gulf-linked and a significant share is Brent-indexed, so a Hormuz-driven crude spike simultaneously lifts oil import costs and LNG contract prices — a dual physical and financial shock. South Korea’s net oil imports represent 2.7% of GDP, making it among the most vulnerable on the current account front. Thailand holds the highest net oil import ratio in Asia at 4.7% of GDP; each 10% oil price rise worsens its current account by approximately 0.5 percentage point of GDP.

Strategic Note for Investors

The nations most exposed to Hormuz closure — Japan, South Korea, Taiwan — are all US treaty allies. This creates both a strategic imperative for US military action and an escalating political pressure point that constrains the duration of any closure. Prolonged disruption generates ally pressure on the US that it cannot indefinitely ignore — one of Iran’s key negotiating levers in any ceasefire negotiation.

Forward analysis

Three Scenarios for How the Hormuz Crisis Resolves

Given the current gauge reading of 87/100, the probability model assigns the following weightings to three primary resolution pathways. These are updated daily as underlying indicators shift. Duration is the decisive variable: the economically sustainable length of disruption at Hormuz defines the feasible duration of the conflict itself.

01
Negotiated ceasefire and partial reopening
Back-channel contacts via Oman or Turkey produce a temporary ceasefire allowing civilian and neutral-flagged shipping to resume. Most likely if Iran’s post-Khamenei leadership calculates that economic costs — approximately 40% of government income from oil exports — outweigh strategic gains. Requires an implicit US concession on Iran’s oil export revenues.
22%
02
Selective reopening — non-allied shipping permitted
Iran maintains closure for US, Israeli, and NATO-flagged vessels but allows Chinese, Indian, and neutral shipping through — partially signalled on March 5 and 8. This maximises economic leverage while preserving trade relationships with Iran’s key partners. Consistent with Kpler data showing limited Chinese and Iranian-flagged traffic continuing.
49%
03
Extended closure and escalating conflict
Strikes on Kharg Island oil infrastructure trigger Iranian retaliation across the proxy network. Gulf states drawn more directly into the conflict. Closure extends beyond 90 days. Global recession becomes base case. Mitigation capacity — pipelines and reserves — is structurally insufficient beyond 30–45 days of effective coverage.
29%
Free tool

Embed the Hormuz Risk Gauge on Your Site

The Strait of Hormuz Risk Gauge is free to embed on any website, newsletter, or blog. Energy finance sites, geopolitics publications, academic research pages, and news organisations all have permission to use it — no registration required. Every embed auto-credits and links back to HormuzMonitor.com, making it both a useful tool for your readers and a source of referral traffic for the communities covering this crisis.

Why Embed This Widget

Sites that embed the gauge give readers a live, self-updating risk indicator that drives return visits. The gauge is the only publicly available composite Hormuz closure risk index tracking all six key indicators in one place, updated every day as the situation evolves. It embeds in 60 seconds with a single HTML paste.

The gauge is particularly valuable for: energy finance newsletters and trading desks tracking oil price drivers; geopolitics and foreign policy publications covering the Middle East; academic institutions researching maritime security and chokepoint risk; logistics consultancies advising clients on Gulf exposure; and news sites covering the 2026 Iran crisis that want a live data widget to anchor their coverage.

For WordPress users, no plugin is required for basic embeds — paste the iframe code from the sidebar widget directly into any Custom HTML block. A shortcode plugin for more advanced integration is available for download from the widget page.

Frequently asked questions

Strait of Hormuz Risk Gauge — FAQ

What does a score of 87/100 mean on the Hormuz Risk Gauge?+
A score of 87 places the strait in the Critical zone (76–100), indicating that an active closure or open military conflict is underway. At this level, commercial shipping has effectively ceased, war-risk insurance is unavailable, and the global oil supply shock is already materialising in real commodity prices. The gauge has only reached Critical during the March 2026 crisis.
How often is the gauge updated?+
The gauge is updated daily, typically in the morning UTC, drawing on overnight AIS vessel tracking data, maritime insurance market reports, diplomatic news flows, and analyst assessments. During periods of acute crisis — such as the current closure — it may be updated multiple times per day when significant new information warrants a score revision.
What is the Strait of Hormuz and why is it so important for oil?+
The Strait of Hormuz is a narrow waterway between Iran and Oman connecting the Persian Gulf to the Gulf of Oman and Arabian Sea. It is the world’s most critical maritime chokepoint: approximately 20% of global petroleum liquids consumption — around 20 million barrels per day — passes through its two three-mile-wide shipping lanes. No viable alternative exists to replace this volume. Pipeline alternatives can handle only 3.5–5.5 million barrels per day. Additionally, roughly 20% of global LNG trade — primarily from Qatar — transits the strait. The EIA ranks it above all other chokepoints in strategic importance.
What happens if Iran closes the Strait of Hormuz?+
A complete Hormuz closure triggers a multi-stage crisis: within 24–72 hours, commercial shipping suspends and oil prices spike sharply. Within one week, prices reach $120–150/bbl. Within 30 days, strategic petroleum reserves face serious drawdown pressure. A 90-day closure would reduce global GDP by an estimated 2.5–3.5 percentage points, tipping most major economies into recession. Japan, South Korea, Taiwan, India, and Europe — which depend on Gulf energy for 40–90% of their imports — face the most severe consequences. UNCTAD has warned that higher energy, fertiliser and transport costs may increase food costs and intensify cost-of-living pressures, particularly for the most vulnerable developing economies.
How does the Hormuz closure affect oil prices specifically?+
The Hormuz closure effect on oil prices operates through two channels: direct supply reduction (17–21 million barrels per day removed from global markets) and risk premium inflation (traders pricing in uncertainty about future supply). In the 2026 crisis, Brent moved from approximately $69/bbl in mid-2025 to over $126/bbl at peak — an 82% increase. Even partial mitigation through SPR releases and pipeline diversions cannot offset more than 25–30% of lost volume. Mizuho Bank estimates that higher war insurance costs alone add $5–15 per barrel, meaning the war premium remains firmly intact even when physical transit partly resumes.
Can the US military force the strait to reopen?+
The US military can defeat Iran in a conventional naval engagement — it did so decisively during Operation Praying Mantis in 1988. However, defeating Iranian naval forces does not immediately reopen the strait. Iran’s primary Hormuz denial weapon is naval mines, and mine clearance is extremely slow: even a combined US-allied effort clears only 1–2 nautical miles of lane per day per team. Restoring safe transit conditions after a mass mining campaign takes weeks to months regardless of military outcome. This gap between military victory and commercial reopening is the core of Iran’s asymmetric strategic calculus. In the short term, the US can escort 3–4 commercial ships per day with 7–8 destroyers providing air cover — insufficient to restore normal market confidence.
Is the Risk Gauge the same as an oil price forecast?+
No. The gauge measures closure risk — not oil prices directly. Oil prices are influenced by many factors beyond Hormuz: OPEC+ decisions, US production levels, global demand trends, and other geopolitical events. However, at high gauge readings (76+), there is a strong historical correlation between Hormuz risk and upward oil price pressure. At Critical levels (87+), as currently, Hormuz is the dominant near-term driver of global oil price direction and every analyst’s primary variable.
Sources and methodology

Data Sources and Further Reading

The Strait of Hormuz Risk Gauge draws on the following primary sources, updated daily. All sources are publicly available for verification:

SourceData Contributed
U.S. Energy Information AdministrationOil transit volumes, pipeline alternatives, chokepoint rankings
UNCTADGlobal trade and development impact assessments
International Energy AgencySPR levels, oil security coordination, demand forecasts
Kpler / VortexaReal-time tanker AIS tracking, vessel flow data
Lloyd’s Market Association / P&I ClubsWar-risk insurance premium data and coverage status
IISS Military BalanceIranian and US naval capabilities assessment
Wikipedia — 2026 Strait of Hormuz CrisisReal-time event chronology and reference
HormuzMonitor — Latest NewsDaily intelligence synthesis and editorial assessment

The Complete Strait of Hormuz Crisis Handbook — 2026 Edition

Eight chapters covering every dimension of the current crisis: the geography that makes the strait irreplaceable, Iran’s full military capability, the legal framework, economic modelling of three closure scenarios, and the history that explains how we got here. Written for investors, analysts, journalists, and informed citizens.

Immediate access  ·  No subscription  ·  One-time purchase  ·  HormuzMonitor.com