Supply Chain Action Points
Read this first — the conclusion, and the moves to make:
- Split your June bookings into must ship and can wait by 2026-06-16; lock space only on the must ship at current rates and resist the crowd on discretionary volume.
- Book Asia to US West Coast cargo before mid June to avoid MSC's 6,000 dollar per forty foot FAK that anchors the second half of the month.
- Add 10 to 14 days of transit and one week of Shanghai loading slippage to inventory plans now, because the diversion and congestion premiums show up as lead time before they show as rate.
- Track the tariff decision and Hormuz Red Sea security weekly; if the tariff threat fades, pause new bookings and let the front loading premium unwind rather than chase it.
- Reprice the program at the 3,933 dollar West Coast and 75 percent East Coast levels by 2026-06-15 and flag the annualised six figure swing to the budget owner.
An early peak season has sent container freight rates surging across global trade lanes, with the Drewry World Container Index jumping 23% week-over-week to $3,433/40ft as of June 4. Asia-to-U.S. West Coast spot rates have climbed 109% since the onset of the Iran conflict, reaching $3,933/FEU, while Asia-to-East Coast rates are up 75%. The surge is driven by front-loading ahead of potential tariff increases, ongoing Red Sea and Strait of Hormuz diversions adding 10-14 days to transit times, and severe port congestion in Shanghai and Northern Europe. CMA CGM, MSC, Hapag-Lloyd, and Maersk have all rolled out peak season surcharges and base rate hikes ranging from $300 to $1,000 per container throughout June, with MSC announcing FAK rates of $3,000/20ft and $6,000/40ft for the second half of June.
The Analysis
The Drewry composite jumped 23 percent week over week to 3,433 dollars per forty foot box as of June 4, and the transpacific is where the number becomes a problem. Asia to US West Coast spot is up 109 percent since the Iran conflict began, touching 3,933 dollars per FEU, while Asia to East Coast is up 75 percent. Four carriers, CMA CGM, MSC, Hapag Lloyd and Maersk, have all rolled out peak season surcharges and base hikes of 300 to 1,000 dollars a container through June, and MSC filed FAK rates of 3,000 dollars per twenty foot and 6,000 dollars per forty foot for the second half of June.
That 109 percent line is the one to sit with. It is not a seasonal nudge. It is a conflict premium stacked on a front loading premium stacked on a congestion premium. I will take them apart.
The instinct is to pile into the front loading and ship now. The wrinkle is that the front loading is exactly what produced the 109 percent, so the obvious move may already be the crowded one.
Start with the fact slice. The Drewry World Container Index rose 23 percent in a week to 3,433 dollars per forty foot container as of June 4. Asia to US West Coast spot climbed 109 percent from the onset of the Iran conflict to 3,933 dollars per FEU. Asia to East Coast is up 75 percent. The drivers are front loading ahead of potential tariff increases, ongoing Red Sea and Strait of Hormuz diversions adding 10 to 14 days to transit, and severe congestion in Shanghai and Northern Europe. Four carriers announced peak season surcharges and base increases of 300 to 1,000 dollars per container across June, and MSC set FAK rates at 3,000 dollars per twenty foot and 6,000 dollars per forty foot for the back half of June. That is the table.
The causal chain is three stacked causes, and naming them matters because each unwinds differently. Front loading is where it begins: importers pulled volume forward to beat a possible tariff, which concentrated demand into a narrow window and bid up space. The Red Sea and Hormuz diversions add 10 to 14 days of transit per sailing, which removes effective capacity because ships are tied up longer and complete fewer round trips. Congestion in Shanghai and Northern Europe means terminals are backed up, so even booked boxes can sit. The 109 percent on the West Coast is the sum of all three, not one of them.
Let us do the layered impact. The Asia to US West Coast importer is the most exposed, up 109 percent, and if they ride MSC into the second half of June they face the 6,000 dollar forty foot FAK. The Asia to East Coast shipper is up 75 percent, better but still severe. The mid size buyer with no contract is fully at the spot mercy and feels the full 300 to 1,000 dollar carrier hikes. The large account with an annual contract may be partly shielded on base but eats the peak surcharge, which carriers file outside the band. The small seller shipping spot is hit hardest per dollar, because every layer, front loading premium, diversion premium, congestion premium, lands on their published rate with no cushion.
The transmission timing is already upon us and runs through June. The carrier increases of 300 to 1,000 dollars are spread across the month, so the rate is still climbing week by week, not done. MSC's 6,000 dollar forty foot FAK applies to the second half of June, so any booking departing after roughly mid month carries that anchor. The 10 to 14 day diversion adds to transit, which means inventory lead time is longer even if you secure a rate, so the cost shows up in working capital, not just freight. The congestion in Shanghai means your box may not load on the sailing you booked, adding another week of slippage on top of the diversion days.
Here is the overlooked point, the one the headline skips. Everyone reads 109 percent as a reason to ship now. But the front loading that justifies shipping now is the very behaviour that created the 109 percent. When every importer pulls forward, they concentrate demand, bid up space, and the rate spikes, which then scares more importers to pull forward. It is self reinforcing, and by June 12 the crowded trade is already priced. The overlooked risk is that pulling forward now locks you into the peak you helped build. The second overlooked item is the 10 to 14 day diversion premium. That premium is a conflict tax, not a seasonal one, and it will not unwind until the Hormuz and Red Sea routes are safe again. So even if tariffs never come, a chunk of the 109 percent is structurally sticky until the security situation changes, which is a different clock than the tariff clock.
Now the counterfactual, because a conclusion you cannot flip is not a conclusion. Suppose the threatened tariff does not materialise. Then the front loading was unnecessary, the concentrated demand unwinds, and the seasonal premium collapses, potentially taking rates down as fast as they rose. In that case waiting would have been cheaper, and the 109 percent was a self inflicted spike. Conversely, suppose the conflict escalates or the tariff lands. Then the diversion premium and the front loading both intensify, the 6,000 dollar FAK becomes the floor not the ceiling, and locking now looks like the bargain. The condition that flips the call is the tariff decision and the security situation, both knowable weeks ahead from policy and naval reports, not from the rate sheet.
Let us run a small calculation so the stack is not abstract. Take an Asia to US West Coast program at fifty boxes a month. At 3,933 dollars per FEU versus a pre conflict level of, say, 1,880 dollars, that is roughly 2,053 dollars more per box, or about one hundred two thousand dollars a month, over one point two million dollars annualised, before any carrier surcharge. Add a 500 dollar average per container hike and the monthly number crosses one hundred twenty seven thousand dollars. At those levels, the decision to lock or wait is a six figure monthly swing, which is why the tariff and security signals, not the rate print, should drive it.
The practical read is to separate the three premiums before you act. The congestion and diversion premiums are real and sticky, so secure space and accept the rate on cargo you must move. The front loading premium is the one you can refuse by not joining the crowd on discretionary volume. Lock the must ship, hold the can wait, and watch the tariff and Hormuz signals rather than the climbing index.
↑ Back to the key points