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Import gains at top US container gateways go ballistic

McCown Report: Containerized imports jumped 67.8% in March

Savannah saw the third-highest Q1 import growth (Photo: Georgia Ports Authority)

The import stats at U.S. ports just went ballistic. Year-on-year (y/y) gains skyrocketed for two reasons. First, March volumes were unusually strong — as high as the peak in October. Second, import volumes in March 2020 were unusually weak, suppressed by the initial COVID lockdowns.

This confluence led to some eye-catching statistics published by The McCown Report on Thursday: Imports to the top 10 U.S. container ports rose 67.8% y/y. Imports to East/Gulf Coast ports rose by 48.5%. Those to West Coast ports rose by 89.5%.

Adviser John McCown, who compiles the monthly data for the report, called the March numbers “incredible,” with “most of the top 10 ports reporting their largest year-over gains in memory.”

March matches October peak

“Total volume in March was almost identical to what it was five months earlier, in October, traditionally the highest-volume month owing to holiday shipments,” said McCown. “March is usually the lowest-volume month of the year due to the Chinese New Year effect. This year, however, most of the plants in China remained open throughout the New Year’s celebration and there was no lull that reduced March volume.”


Blue bars = change y/y. Red line = change y/y of three-month trailing volume (Chart: The McCown Report)

McCown’s data shows a 15% y/y decrease in imports at the top 10 ports in March 2020, leading to an easy comparable for last month. Even so, the y/y gain for the three trailing months (i.e., the first quarter) highlights the depth of the current import strength. According to The McCown Report, three-month trailing volume was up 32.5% — 23.6% for East/Gulf Coast ports and 41.7% for West Coast ports.

Looking at individual ports, trailing three-month volumes rose the most in Los Angeles (+48.1%), followed by Long Beach (+44.5%), Savannah, Georgia (+32.8) and Seattle/Tacoma (+32.2%).

Import-export gap widening

container imports chart
Red line = change y/y of three-month trailing volume of imports. Blue line = change y/y of three-month trailing volume of exports. (Chart: The McCown Report)

The trend is entirely different on the export front.

Outbound container volume did increase 0.8% y/y in March, but this was the first gain after 12 consecutive monthly declines. The trailing three-month volume was down 6.6%.


“There is a widening gap between inbound and outbound performance,” said McCown.

Looking beyond March

The trends seen in March — double-digit y/y gains for imports and a widening spread between imports and exports — look virtually guaranteed to persist for at least the next several months, particularly given that there are weak prior-year comparables through July 2020.

The Commerce Department reported Thursday that retail sales spiked by 9.8% in March. That spending will intensify the need for retailers to restock inventories, which will support import demand in the months ahead.

Other indicators point to continued strength, as well.

Data from U.S. Customs on the number of maritime import shipments arriving in the country per day (SONAR: CSTM.USA) shows no let-up this month (numbers are a seven-day trailing average and do not account for differing volumes per bill of lading). The number of inbound shipments is still on par with where it stood during the peak fourth-quarter period.

container imports chart
(Chart: FreightWaves SONAR. To learn more about FreightWaves SONAR, click here.)

FreightWaves’ SONAR platform also features a proprietary index of shippers’ ocean bookings. Bookings to the U.S. are measured on a 10-day-moving-average basis in terms of twenty-foot equivalent units (TEUs) as of the scheduled date of overseas departure. Given the voyage times from different load ports around the world, a high index number in mid-April implies high import volumes in May.

This dataset (SONAR: IOTI.USA) is indexed to Jan. 1, 2019. It hit its highest point since then in late March 2020, during the sudden wave of catch-up bookings following the initial Wuhan lockdown. The index came within a few points of breaking that record on Monday.

container imports chart
(Chart: FreightWaves SONAR. To learn more about FreightWaves SONAR, click here.)

The dataset also includes booking data for cargo scheduled to depart over the coming week. The forward data shows that a new all-time high for the U.S.-inbound TEU index will be reached next Tuesday. This strongly implies that the extraordinarily high numbers recorded at U.S. ports in March will be followed by more big numbers ahead.


container imports chart
(Chart: FreightWaves SONAR. To learn more about FreightWaves SONAR, click here.)

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Greg Miller

Greg Miller covers maritime for FreightWaves and American Shipper. After graduating Cornell University, he fled upstate New York's harsh winters for the island of St. Thomas, where he rose to editor-in-chief of the Virgin Islands Business Journal. In the aftermath of Hurricane Marilyn, he moved to New York City, where he served as senior editor of Cruise Industry News. He then spent 15 years at the shipping magazine Fairplay in various senior roles, including managing editor. He currently resides in Manhattan with his wife and two Shih Tzus.