Maritime trade risk intelligence.
Chokepoint exposure quantified by corridor, commodity, and vessel class, from VLCC to Handymax dry bulk. Available before the disruption.
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Every product in The Narrows is built on the Chokepoint Dependency Model. Bilateral trade data at commodity level, supplemented and validated with vessel, port, and market sources. The CDM is available directly to institutional and analytical clients.
Risk intelligence products.
The Narrows products are connected and built on a common data foundation. Different clients will need some, all, or none of them.
3,778 ports scored across four risk dimensions: accessibility, reliability, trade concentration, and political stability. The entry point to The Narrows data layer.
Open the Port Risk IndexCorridor and scenario analysis demonstrating the method against live events. Published outputs proving the model and quantifying disruption.
Read the analysisFor institutional and analytical clients
Bilateral trade dependency at commodity level across the world's principal maritime corridors. The data foundation. Available to institutional and analytical clients.
EnquireFor marine underwriters, reinsurers, P&I clubs, commodity desks
The CDM applied to a specific cargo portfolio. Locked positions, divertible positions, and rerouting cost by vessel class, charter and bunker included, tanker to dry bulk. A demonstration version is available.
View demonstration Full version runs against a live portfolio.For desks managing a live closure or diversion decision
Decision-support for live events. Committed fleet positions, decision windows, diversion cost and timeline by vessel. Built for the desk managing a closure in real time.
View demonstrationFor anyone with a specific event, portfolio, or question
The Narrows methodology applied to a specific event, portfolio, or research question. Commissioned scenario and corridor analysis delivered as a report.
EnquireWhat you get.
Concrete outputs, not just capability descriptions. Four products, four different deliverables.
The bilateral trade dependency data behind every Narrows product: commodity-level, corridor-level, validated against vessel and port sources. Licensed directly to clients who want the underlying numbers, not just the tools built on them.
Load a vessel portfolio, select a corridor event, get aggregate exposure by vessel class, corridor, and scenario severity, plus the TIDE accumulation figures reinsurers price against. The demo runs a fixed illustrative fleet; full access connects to a live portfolio.
Committed fleet positions for a live event, the decision window before a vessel's diversion option closes, and the real cost and timeline of rerouting, corridor by corridor. Built for the desk that needs an answer today, not a quarterly refresh.
The Narrows methodology, run against a specific event, portfolio, or research question rather than a general corridor. Every assumption stated, same standard as the free analysis. The difference is the question is yours.
3,778 ports scored.
Across four dimensions of risk.
The Narrows Port Risk Index applies an INFORM-style composite methodology to every major port in the World Port Index. Physical accessibility, operational reliability, trade concentration, and political stability: each scored, each decomposable, one composite number per port.
| Rank | Port | Country | PRI | D1 | D2 | D3 | D4 |
|---|---|---|---|---|---|---|---|
| 3,778 | Aden | Yemen | 3.64 | 1.5 | 6.7 | 2.6 | 6.6 |
| 3,803 | Nueva Gerona | Cuba | 3.12 | 5.9 | 5.9 | 1.5 | 1.8 |
| 2,515 | Durban | South Africa | 1.29 | 0.5 | 4.3 | 3.4 | 0.4 |
| 1 | Jurong Island | Singapore | 0.71 |
The method, demonstrated.
Published analysis applying The Narrows model to live events and corridors. Free to read.
Draft cut to 48.0 feet, daily transit slots cut from 38 to 34 from 3 September. Grain trade at risk, corridor by corridor, updated live.
ReadIndia's urea dependency on the Gulf looks like 63%. Once you separate out Oman, which does not transit the strait, the real Hormuz-specific figure is closer to 27%.
ReadIndonesia floated transit fees on the Strait of Malacca. The question did not go away. Bilateral trade dependency data quantifies who pays and by how much.
ReadRequest a briefing.
The Narrows runs scenarios in front of the client, with the client's assumptions, on the corridor of interest. A person will respond.