The route was usable infrastructure with a new security constraint
The Red Sea crisis was not equivalent to a destroyed canal or an ordinary shortage of ships. Attacks on commercial shipping beginning in late 2023 changed the risk of using the corridor linking the Indian Ocean, Bab el-Mandeb, the Red Sea and Suez. Carrier decisions then redirected cargo around the Cape of Good Hope. Maersk’s running operational record documents the initial disruption and subsequent service decisions. It is evidence about that carrier’s actions, not a complete register of every vessel or attack. [1]
The essential economic distinction is between moving cargo and moving it efficiently. A shipment diverted around Africa may still reach its buyer, but it consumes additional vessel days, fuel, crew time and inventory financing. Calling all cargo missing from Suez “lost trade” would count rerouted goods as if they had vanished. Conversely, eventual delivery does not eliminate the real resource and disruption costs of getting there.
Early 2024: displacement of traffic, not a global trade collapse
IMF PortWatch estimates published March 7, 2024 show Suez transit trade volume down 50% year over year in January–February, with estimated Cape of Good Hope transit volume up 74%. The IMF described average delivery delays of ten days or more. These are high-frequency estimated flows for named routes and dates; they are neither a 50% fall in world trade nor a count of cancelled contracts. [2]
The IMF also warned that delayed arrivals distort monthly customs statistics and associated import-duty receipts. A consignment recorded in February instead of January changes the timing of measured imports without necessarily changing the buyer’s underlying demand. Panama drought restrictions were occurring at the same time. A credible attribution exercise must distinguish these overlapping transport shocks instead of assigning every port delay to the Red Sea. [2]
Why the same fleet supplied fewer timely departures
An illustrative service requires ten ships to maintain weekly departures if each complete rotation takes 70 days: 70/7 = 10. If an assumed detour and related handling extend the rotation to 84 days, the same frequency requires twelve ships: 84/7 = 12. The extra two vessels represent a 20% increase in ships committed to that loop. These are hypothetical round-trip durations, not a claim about any named carrier’s schedule.
The mechanism explains how a transport shock can tighten effective capacity without reducing the physical world fleet. Carriers may redeploy ships, change port calls, accelerate sailings or accept lower frequency. New ship deliveries can offset some pressure, but a ship ordered today cannot resolve an immediate scheduling disruption. Faster operation may reduce delay while raising fuel use; its net economics depend on vessel design, fuel prices and the alternative cost of missing delivery windows.
Freight rates measure a different part of the shock
UNCTAD’s February 22, 2024 release reported average Shanghai container spot rates up 122% since early December 2023. It documented differences across shipping routes. This is a freight-pricing observation for a particular origin, market and interval, not a 122% increase in the price of the goods inside each container. Long-term contracts and spot bookings can experience different adjustments. [3]
The distinction matters for inflation. A larger freight bill can be absorbed by a carrier customer, passed to a wholesaler, spread over many units, or reflected in a retail price after existing inventory is sold. The percentage effect on a high-value product need not resemble that on a bulky low-value item. A freight-rate index is also not a measure of GDP loss: part of a higher payment is income for another business, while extra fuel, handling and time are real resource costs.
Inventory finance can bite before the income statement
Consider a hypothetical importer with a steady $500,000 per calendar day of inventory purchases that it finances from shipment to receipt. An extra ten days in transit implies $5 million more tied up in the pipeline, assuming unchanged volumes and supplier-payment terms. At an assumed 8% annual financing rate, that extra balance costs $400,000 per year while it persists. This is a steady-state annual carrying-cost illustration, not a ten-day interest charge or an observed industry loss.
The total exposure can differ sharply if suppliers extend payment terms, the buyer owns goods only at delivery, or inventory arrives in batches. Safety stocks require additional cash beyond the transit inventory itself. For a seasonal retailer, late merchandise may also have to be marked down. For a plant, a missing input may interrupt production. Thus cash-flow stress depends on contract terms and operational substitution, not solely on the published freight quotation.
The longer-distance pattern persisted into the next reporting cycle
UNCTAD’s Review of Maritime Transport 2025 reports global maritime trade volume growing 2.2% in 2024, while ton-miles grew 5.9%. That divergence captures the greater transport work associated with moving cargo over longer distances. It is a global result affected by more than Red Sea rerouting and cannot be treated as a clean estimate of that crisis alone. A ton-mile combines cargo weight and distance; it is not interchangeable with vessel transits, container counts or dollar trade value. [4]
Longer routing can benefit some ports and service providers while hurting others. Canal toll revenue, shipowner earnings and importer costs are different accounting perspectives on the same reorganization. Adding all three changes together as “economic losses” would risk double counting. The broader assessment needs a counterfactual route, the incremental resource use, and the value of any production or sales genuinely not recovered later.
Latest verified developments: announcements are not completed voyages
The verified carrier record shows an uneven return rather than a universal reopening. Maersk’s September 9, 2026 Europe update described AE15 and AE19 Suez routing and explicitly limited the claim to selected services. Its September 14 advisory announced planned Suez routing for AE5, AE11, AE12 and ME2. These statements establish service decisions; they do not certify that the entire global fleet had returned or that security risk had disappeared. [5][6]
The latest specific advisory verified for this history is September 28, 2026. It names Umm Qarn as the first AE12 ship scheduled to use Suez in both directions, with listed departures from Tanjung Pelepas on October 27 and Algeciras on December 5. As of the October 4 research date, those are future schedule entries, not completed transits. The advisory demonstrates why a broad announcement must be checked against vessel-level effective dates. [7]
The route actually used, the schedule for a particular shipment, and the distinction between a security assessment and a delivery guarantee determine how a return affects trade. A return can release vessel capacity and shorten inventory cycles, but the pace and reliability of that release cannot be inferred from one announcement. No current conflict outcome, live freight quotation or corridor-wide normalization is assumed here.
Sources
- Maersk, Operations through Red Sea / Gulf of Aden, original December 2023 advisory and subsequent dated updatesSourceBack to text: ↑
- IMF, Red Sea Attacks Disrupt Global Trade, March 7, 2024; PortWatch estimated route volumesSourceBack to text: ↑1↑2
- UNCTAD, shipping-route disruption release accompanying Navigating Troubled Waters, February 22, 2024SourceBack to text: ↑
- UNCTAD, Review of Maritime Transport 2025; 2024 tons and ton-mile growthSourceBack to text: ↑
- Maersk, Europe market update, September 9, 2026SourceBack to text: ↑
- Maersk, Structural changes to AE5, AE11, AE12 and ME2, September 14, 2026SourceBack to text: ↑
- Maersk, AE12 updated rotation, September 28, 2026; future departures are schedulesSourceBack to text: ↑