US Intermodal Hits All-Time High as Rail Demand Runs Hot Into 2027

US intermodal rail traffic set an all-time monthly record in October, up 9.6% year over year — the third consecutive month of record volumes, according to the Association of American Railroads' latest Rail Industry Overview. The October gain nearly doubled the 4.9% growth rate recorded for the year to date, and the AAR credits broad industrial strength, not just share grabs from trucking.

Carloads tell the same story. Carload traffic rose 3.4% year over year in October, the largest percentage increase in eight months, the AAR said. Strip out coal and carloads climbed 4.5% — well above both this year's average and the 2021-to-2025 average of 1.7%. Fifteen of 20 carload commodity segments posted year-over-year gains in October; 16 of 20 are positive for the year to date. That is breadth, not a single-commodity spike.

What's driving the record volumes?

Motor vehicles and parts led carload growth at 10% for the month and are running roughly flat for the full year after consistent week-over-week strength. The AAR's freight rail index, which strips out coal and grain, hit its second-highest level ever in October. For week 44, US intermodal volume was up 11% against a year ago, above the prior four-week trend of 9.6%.

Bill Stephens, editor of Trains Magazine, laid out the demand picture plainly. "What this says is: one, you've got that broad economic strength in the industrial economy; you've got a strong consumer economy that's helping with intermodal demand; and then also the high diesel prices and the tighter trucking capacity driving freight from truckload to rail, whether that's intermodal or in certain carload segments," Stephens said.

The translation for shippers: truckload capacity tightness and elevated diesel are pushing freight toward rail at the same time underlying demand is rising. Carriers and forwarders should note the shift is structural enough that the AAR projects rail volumes to keep growing into 2027.

What about the headwinds?

The AAR flagged inflation, rising interest rates, housing affordability pressures and weakening consumer confidence as caution flags. Even so, the association said economic indicators point to an economy still expanding at a solid pace, and it held to its projection of rail volume growth through 2027.

Why is Genesee & Wyoming splitting into three?

In a separate structural move, Genesee & Wyoming — the largest shortline holding company, with roughly 110 short lines, 13,000 miles of track, 2,000 customers and about 1.5 million carloads per year, or some 9% of North American carload volume — will split into three regional holding companies in January.

Brookfield Infrastructure Partners and GIC, a Singapore-based wealth fund, took G&W private in 2019 in an $8.4 billion deal. Stephens said the split is designed to broaden the pool of potential buyers ahead of an eventual sale, noting that Brookfield's CEO had cited G&W as a model for breaking large infrastructure assets into smaller, more sellable pieces. Watch the shortline M&A market: three regional portfolios roughly a third of the current company's size each will attract a far wider bidder set than one $8.4 billion-heritage giant.

How did BNSF perform?

BNSF's latest results, reported through parent Berkshire Hathaway, track the industry trend. Volume was up nearly 4%, revenue rose 14%, and the railroad posted double-digit growth in both net income and pre-tax income while improving fuel efficiency. BNSF was a positive contributor to Berkshire's overall earnings, even as the conglomerate's results fell short of some expectations.

For rail investors and intermodal shippers alike, the signal is consistent: record box volumes, broadening carload demand and double-digit revenue growth at the largest operators — with the AAR expecting the volume run to extend into 2027.