Norfolk Southern's executives spent part of their 23 July earnings call describing conditions on somebody else's network. A freight downturn four years old was "finally breaking," they said, and the proof was that about 15% of contracted truckload shipments were being turned down by carriers — a multiyear high — with rejections on flatbed trailers, the open decks that haul transformers, structural steel and switchgear, running near 40%. The railroad also reported a 30% year-over-year increase in transformer shipments, and said its pipeline of new customer facilities along the line should nearly double this year, including a Virginia Transformer plant in Alabama.

The truckers then confirmed it with their own numbers, and their shares fell anyway.

The best quarter of the cycle

All four road-freight names in this group posted their strongest quarter since the downturn began and lifted full-year guidance. Old Dominion Freight Line, the largest less-than-truckload (LTL) carrier — the business of consolidating pallet-sized shipments from many customers into one trailer, run here from roughly 250 service centers — grew revenue 10.4% and operating income 30.0%, cutting its operating ratio, the share of revenue eaten by expenses, to 70.1%. XPO, which pairs a North American LTL network with a freight brokerage, hit a company-record 79.9% LTL operating ratio and raised its full-year improvement target from 100–150 basis points to at least 200; July shipments per day were tracking up 6%, which management called the first sign of manufacturing momentum in more than three years.

Saia, a smaller LTL carrier moving shipments of 100 to 10,000 pounds out of 213 terminals, reported record revenue of $956.5m, up 17.1%, with tonnage per day up 8.4% and a 7.1% general rate increase implemented in early July. J.B. Hunt, the largest domestic intermodal operator — containers on railroad flatcars, trucked the final miles — moved more than 578,000 loads, up 10%, with the Eastern network up 16% and revenue per load positive excluding fuel for the first time since 2022.

Over the past month Saia lost 12.3%, Old Dominion 11.0%, J.B. Hunt 6.3% and XPO 3.8%. The railroads lost between 1.1% and 1.9%.

How much of it was diesel

The caveat sits inside the revenue line. Brent crude went from about $70 a barrel to above $100 after the Iran conflict began, and US average diesel reached roughly $5.40 a gallon. Union Pacific disclosed that fuel surcharges alone supplied 750 basis points of its freight-revenue growth, against 225 from volume. Saia's fuel take was 22.3% of revenue against 14.6% a year earlier; strip it out and revenue per shipment rose 1.5%. Old Dominion is the cleanest case: revenue per hundredweight up 15.2% reported, 5.5% ex-fuel, and tons per day still down 4.1%. Its margin surge came from price and cost, not from more freight. Industry data agrees that the tightening is supply-side — spot rates ex-fuel up 43% in June while shipment counts fell.

The rails have the corroboration

CSX, the eastern railroad with about 19,500 route miles and some 30 intermodal terminals, grew volume 6% and expanded operating margin 240 basis points despite a fuel headwind, raising full-year guidance to more than 350 basis points of margin expansion and over 80% free-cash-flow growth. Union Pacific, whose 32,452 route miles link the Pacific and Gulf ports to Midwest gateways, ran a 59.2% operating ratio and raised earnings guidance. Norfolk Southern grew volume 4% but pushed its 2026 operating-expense guidance up by roughly $500m on fuel. Industry figures back the volume claim: US carloads are up 2.7% and intermodal 3.8% through the first 31 weeks of the year.

The Union Pacific–Norfolk Southern merger is not doing this work. The Surface Transportation Board accepted the application but held proceedings in abeyance, demanding supplemental information; the case is evidentiary, not close to approval. CSX has held an uptrend, its 50-day average above its 200-day, for 80 straight sessions since 17 April.

What each dollar of profit costs

The railroads are the cheapest operating profit in the group on enterprise value to earnings before interest, taxes, depreciation and amortization (EBITDA) — Union Pacific 15.3x, CSX 16.6x, Norfolk Southern 16.7x — with forward price/earnings below trailing at all three and free-cash-flow yields of 5.4% at CSX and 5.1% at Norfolk Southern.

Old Dominion at 24.0x and XPO at 22.1x EBITDA, on cash yields of 2.5% and 2.4%, are being marked down from expensive. Saia at 16.5x and J.B. Hunt at 16.7x are the anomaly: rail multiples on operating income growing 26.0% and 31.5%, against Union Pacific's 9.7%. Their identifiable catalysts are not operational. Amazon's June move to open LTL shipping to all businesses knocked LTL stocks 5–7% in a session, and Morgan Stanley's downgrade of J.B. Hunt cited valuation after an 89% year, not the business.

One discipline check: strip each company's two best sessions from the past year and Saia's gain falls from 25.9% to 5.2%, Norfolk Southern's from 18.4% to 6.5%. WillScot, which leases modular offices and portable storage to construction sites and is not a freight carrier at all, goes from -3.6% to -28.8% — even as it raised guidance to about $2.3bn of revenue and $920m of EBITDA and carries a 12.5% cash yield on margins that compressed 500 basis points.

The setup

Where it stands — Road freight posted its best quarter of the cycle and de-rated; the rails, cheaper and volume-corroborated, held. Would confirm — Old Dominion tons per day turning positive year over year in the third quarter. Would invalidate — Diesel retreating toward $4 a gallon and LTL revenue growth collapsing with it. Watch next — Third-quarter results in late October, plus weekly rail traffic from the Association of American Railroads. Valuation — Rails 15.3–16.7x trailing EBITDA with forward P/E under trailing; Saia and J.B. Hunt now match them at 16.5x and 16.7x.