“The Strait of Hormuz was not blocked by mines, missiles, or military orders. It was closed by a 72-hour cancellation notice from a P&I club. Understanding that distinction matters enormously, because Iran has understood it, and is now attempting to build an alternative financial system designed to work around it. Meanwhile, a small Swiss trading firm has possibly demonstrated what it costs to get through.”
What Actually Closed Hormuz
On February 28, 2026, US and Israeli forces struck Iranian targets in a coordinated military operation. Within 48 hours, the Strait of Hormuz, through which roughly 20 percent of the world’s oil supply flows daily, had effectively stopped functioning as a commercial shipping corridor. By March 1, transits of all vessel types were down more than 80 percent compared to the same day the prior week. On March 2, just one crude oil tanker transited the strait. No LNG carriers moved at all.
Iran did not do this. Iran threatened to. The distinction is critical, and the shipping industry has been remarkably clear about it.
Lloyd’s List, the 280-year-old maritime journal of record, stated it directly in its March 2 reporting: the strait had been effectively closed, not by Iran, but by shipping itself. The mechanism was the marine war risk insurance market. Within 48 hours of the strikes, P&I clubs, the mutual insurers that cover third-party liabilities for approximately 90 percent of the global merchant fleet, began issuing notices cancelling war risk extensions for vessels trading in the Middle East. They gave 72 hours. Gard, Skuld, NorthStandard, the London P&I Club, and the American Club all issued similar notices effective March 5. Hull war risk premiums, which had stood at roughly 0.2 percent of vessel value, surged to 1 percent within days, according to Reuters and industry broker sources. For a tanker valued at $100 million, that represented a jump in voyage war-risk cost from approximately $200,000 to $1 million. For a very large crude carrier, some sources reported additional war risk premiums exceeding $800,000 per voyage.
According to Lloyd’s List Intelligence, around 200 compliant internationally trading tankers were stranded in the Middle East Gulf within days of the closure, including 60 very large crude carriers representing nearly 8 percent of the global compliant VLCC fleet. Separately, ship tracking data showed approximately 147 container ships carrying around 470,000 TEU of capacity, roughly 1.4 percent of the world’s total container fleet, trapped in the Persian Gulf or unable to exit the region. Hundreds more vessels anchored in safe waters outside the strait and waited. Munro Anderson of marine war insurance specialist Vessel Protect described the situation precisely: the market was facing what was essentially a de facto closure of the Strait of Hormuz, based primarily around perception of threat rather than a tangible blockade.
Why a Ship Cannot Simply Sail Without Insurance
To understand why the insurance market’s reaction closed Hormuz more effectively than any Iranian military action, it helps to understand what marine insurance actually does and why its absence is operationally paralyzing rather than merely expensive.
A ship can physically sail without a navy escort. It generally cannot operate commercially without insurance. Ports require proof of P&I coverage before granting entry, because without it there is no financial backstop if the vessel causes a collision, spill, or wreck that damages port infrastructure or third-party vessels. Lenders who have financed the ship require hull coverage to protect their collateral. Cargo owners and their insurers require the vessel to be covered because their own cargo policies typically exclude carriage on uninsured vessels. Charterers require it as a contractual condition of the voyage agreement.
What makes that coverage credible goes beyond the mere existence of a policy. A marine insurance policy is only as valuable as the insurer’s ability to pay claims, the legal enforceability of the policy in recognized courts, the insurer’s capital reserves and reinsurance backing, and the acceptance of the policy by the ports, lenders, and counterparties that require it. A policy issued by an entity with no recognized capital reserves, no reinsurance backing from the global reinsurance market, and no legal standing in the jurisdictions where claims would be adjudicated is not insurance in any commercially meaningful sense. It is a document. That distinction becomes critical when evaluating what Iran is now attempting to build.
The Insurance Market as Geopolitical Instrument
What happened at Hormuz in early March 2026 is one of the most instructive examples in modern history of how financial infrastructure can become a strategic instrument without any of the parties intending it as such. No insurance executive decided to close the world’s most important energy chokepoint. Each made a rational, commercially defensible decision based on their assessment of aggregated portfolio risk: hundreds of vessels clustered in a confined geography, with active hostilities, unpredictable escalation, and reinsurance withdrawal that left primary insurers with concentrated unhedged exposure.
The Irregular Warfare journal documented the mechanism in a March 2026 analysis, identifying a three-step escalation sequence. Step one: war risk premiums reprice sharply, raising transit costs but not halting traffic. Step two: P&I clubs issue 72-hour cancellation notices, after which shipowners must renegotiate at dramatically elevated rates or go without cover. Step three: the combination of elevated premiums, coverage uncertainty, and physical risk produces a rational commercial decision by individual shipowners to wait, regardless of whether the strait is technically open. The strait does not need to be physically blocked to be effectively closed. It needs only to be commercially uninsurable.
The Lloyd’s Market Association clarified on March 23 that war insurance cover for vessels in the Strait of Hormuz remained available, and that reports suggesting insurance unavailability was the primary reason vessels were not transiting were not accurate. Safety, the LMA said, was the dominant concern. The US International Development Finance Corporation responded by launching a $20 billion Maritime Reinsurance Plan with Chubb as lead partner, specifically to restore confidence and get commercial shipping moving again.
The Arbitrage: What It Actually Costs to Go Through Anyway
While most of the world’s commercial fleet waited at anchor, one supertanker decided to move. The journey of the Agios Fanourios I, a supertanker loaded with nearly 2 million barrels of Iraqi crude oil from Basra fields and bound for PetroVietnam Oil Corp in Vietnam, became one of the most closely watched voyages in global energy markets in May 2026. Traders scoured satellite data for signs that the strait might be opening. The ship’s stop-start progress became a live indicator of whether commercial transit was possible at all.
Bloomberg reported on May 25 that the operator behind the transit was not the end buyer but a relatively obscure Geneva-based commodity trading house called Lytton SA, founded in 2024 by Hakim Darbouche, a former Trafigura Group oil trader, and Alan Konyar, a former executive of Onex DMCC. The company had been known primarily for marketing oil products from Iraq’s Taurus refinery in the Kurdistan region and for trading crude, refined products, and naphtha in the Mediterranean and East Asia. It was two years old. It was not one of the established commodity trading giants.
The economics of the voyage illustrate exactly how distorted the market had become. Iraqi crude inside the Gulf was trading at approximately $18 per barrel below international benchmark prices, a discount created by the near-total absence of buyers willing to take on the transit risk. On nearly 2 million barrels, that discount represented a potential gross profit of roughly $60 million if the cargo could be moved to a buyer outside the Gulf at prevailing international prices. Lytton structured exactly that arbitrage. The gross profit figure, however, tells only part of the story. Freight rates had surged to between $35 million and $40 million for a single supertanker charter through the conflict zone, according to Bloomberg sourcing. After freight, demurrage accumulated during a five-day US Navy inspection following the vessel’s exit from the strait, and the various costs of navigating a geopolitically treacherous voyage, the net margin was a fraction of the headline number.
The passage itself was far from smooth. The Agios Fanourios I received Iranian permission to transit only after the Iraqi government intervened diplomatically on its behalf, Bloomberg reported citing people familiar with the matter. Even then, Iran ordered the vessel to turn back twice during the attempt. On a third attempt, it was directed toward the Iranian port of Bandar Abbas. The vessel did not go to the Iranian port and was never boarded, according to Eastern Mediterranean Maritime, the ship’s manager. When it finally exited the strait on the night of May 10, the US Navy intercepted the vessel and held it for five days before releasing it following a formal request from PetroVietnam Oil. Representatives close to Lytton and Eastern Mediterranean Maritime stated explicitly that no transit or escort fees were paid to Iranian authorities, a position consistent with US sanctions requirements.
Who Was Really Behind the Deal
The Lytton story raises a question that Bloomberg’s own sourcing gestures toward without fully answering: in a market where a two-year-old trading house managed to structure a $60 million gross profit trade through the world’s most dangerous shipping corridor, what are the major commodity trading houses doing?
Bloomberg noted the relevant dynamic directly: the biggest trading houses are able to leverage their scale and financial power to grasp opportunities, but the risks of shepherding cargo worth hundreds of millions of dollars through Hormuz are comparatively greater for smaller firms like Lytton. If the risks are comparatively greater for smaller firms, they are comparatively more manageable for larger ones. The major commodity trading houses, Vitol, Trafigura, Gunvor, Glencore, and Mercuria, have balance sheets, relationship networks, sovereign connections, and risk management infrastructure of a different order entirely from a two-year-old Geneva startup.
Lytton’s co-founder is a former Trafigura trader. That is a professional network connection, not an operational link, and nothing in the available reporting suggests any involvement by Trafigura or any other major house in the Agios Fanourios I voyage. But the commodity trading industry operates largely outside public view by design. The major houses do not announce their positions, their counterparties, or their risk exposures. In a market where Iraqi crude is trading at an $18-30s per barrel discount inside a blockaded strait, and where that discount disappears the moment cargo clears the chokepoint, the arbitrage opportunity is visible to every trading desk in Geneva, London, Houston, and Singapore. The commodity trading industry has a long history of navigating exactly this kind of environment. During previous periods of severe dislocation, whether the Soviet grain embargo, the Iraqi oil-for-food program, or the sanctions-era Iranian crude trade, the major houses navigated the gap between official restriction and market reality with a sophistication that rarely appeared in public reporting until years later. What is visible in Lytton’s disclosed role is almost certainly not the entirety of what is occurring.
Iran Reads the Lesson and Responds
Iran, subject to decades of Western financial sanctions and deeply familiar with how dollar-denominated clearing and Western institutional infrastructure can be used as instruments of economic pressure, drew what appears to be a deliberate strategic conclusion from the March closure. If the insurance market, centered on Lloyd’s of London and the major P&I clubs, can close a strategically vital waterway more effectively than any navy, then an alternative insurance and payments infrastructure capable of providing coverage outside that system is not merely a commercial product. It is a potential geopolitical asset.
The Iranian response unfolded in documented stages. In March 2026, Iran’s parliament passed the Strait of Hormuz Management Plan, codifying a transit toll system the IRGC had been operating since mid-March, according to Unchained Crypto and Bitcoin Magazine. Vessels seeking passage were reportedly required to submit ownership details, cargo type, destination, and crew information to an IRGC-linked intermediary. In April, Hamid Hosseini of Iran’s Oil, Gas and Petrochemical Products Exporters’ Union told the Financial Times that shipping companies could settle Hormuz transit fees in Bitcoin or other non-dollar currencies including yuan, with fees reported at approximately $1 per barrel and totaling up to $2 million for heavily laden tankers.
On May 16, 2026, Iran announced the launch of what it called Hormuz Safe, described in reporting from IRGC-affiliated Fars News, Insurance Journal, and Iran International as a state-backed digital maritime insurance platform accepting Bitcoin payments settled upon blockchain confirmation, entirely outside SWIFT-based banking channels. Iranian officials reportedly claimed the initiative could generate more than $10 billion in revenue, though no timeframe or methodology supported that projection and no independent source had confirmed any actual policy issuance as of late May 2026.
Why the Platform Faces Structural Credibility Problems
The gap between announcing an insurance platform and operating one that commercial shipowners will accept is precisely the gap described above. For Hormuz Safe to function as insurance in any commercially meaningful sense, it would need to demonstrate capital reserves sufficient to pay claims on vessels worth hundreds of millions of dollars, reinsurance backing from institutions recognized in global financial markets, legal enforceability in the jurisdictions where vessel owners, lenders, and cargo interests are domiciled, and acceptance by the ports, lenders, and counterparties whose requirements make insurance operationally necessary. None of those conditions appear to have been established.
The institutional genealogy of the initiative adds a further credibility concern. Babak Zanjani, whose prior conviction for embezzling billions from Iran’s oil ministry was documented by Bloomberg and the Wall Street Journal, and whose wealth was built in part through assisting Iran in evading oil sanctions according to those same sources, shared the first details of Hormuz Safe on social media within minutes of the initial Fars report, according to Claims Journal and Insurance Journal coverage. His visible proximity to the initiative is noted here not as a definitive institutional link but as context that informed commercial operators will weigh.
The Financial Operating System of Global Trade
The Hormuz situation, taken together, is a case study in how the financial architecture of global trade has become strategically more significant than its physical architecture in certain conflict scenarios. The strait was not closed by a navy. It stopped moving because the insurance mechanism that makes commercial shipping possible withdrew its coverage. A two-year-old trading house found a way through by accepting the full financial cost of that risk on its own balance sheet, purchasing discounted crude, absorbing extraordinary freight rates, and tolerating a five-day US Navy detention. Larger, unnamed players may be doing similar things more quietly, with better relationships and lower friction costs.
Iran’s strategy appears to reflect an understanding that financial infrastructure may be a more consequential chokepoint than physical infrastructure in the modern global economy. Whether Hormuz Safe and the broader parallel system Iran is attempting to build achieves commercial credibility is an open question that will be answered over years, not weeks. Iran may be among the first sanctioned states to attempt a fully integrated insurance-and-payments alternative specifically designed for maritime commerce outside Western financial infrastructure. Whether that attempt succeeds, its existence alone signals that the financial architecture of global trade has become a strategic target in its own right.
Understanding how that architecture actually works, what makes insurance credible, what makes trade finance function, how commodity traders navigate the gap between official restriction and market reality, and what happens when any of it breaks down, is what Financing the World We Trade In is designed to explain.