Kirby's Backlog Keeps Getting Revised Up — and the Real Payoff Doesn't Bill Until 2029
A record $2.09 quarter is the headline; the story is a $1.5 billion-plus behind-the-meter order book, a chemical market that finally turned, and the word 'Jones Act' that vanished from the script.
KEX · Earnings Call · 2026-10-28
Kirby's Backlog Keeps Getting Revised Up — and the Real Payoff Doesn't Bill Until 2029
The quarter, and the filing that lags behind it
Kirby printed record third-quarter EPS of $2.09, up 27% year over year. Marine Transportation did $569 million of revenue (+17%) and $112 million of operating income (+26%) at a 20% margin; Distribution & Services did $408 million (+6%) and $48 million (+13%) at 12%. Blended, that is roughly a 16.4% operating margin — a visible step up from the 13.3% scribbled on the most recent 10-Q, which still covers the June quarter and shows 13.3%, down 2.1pp year over year. The filing lags the call; the call is better than the filing.
The blemish is cash. Free cash flow was a hair negative in the last reported quarter, and receivables sit at 69.6% of revenue. Raj Kumar conceded working capital "remained elevated" and promised normalization into Q4. That is a claim with a date on it. Balance sheet is fine — interest coverage of 11.1x against a 23.7% debt-to-capital ratio and $530 million of liquidity. And the $112 million of buybacks came at an average $137 a share versus roughly $150 today: well-timed.
The number that keeps getting revised up
Three quarters, three different backlog answers. In Q1, power generation backlog was "$500 million to a billion." In July, David Grzebinski upped it: “our new backlog guidance is a $1 billion to $1.5 billion” — David W. Grzebinski, Chief Executive Officer · 2026-07-29. On this call: “we are north of $1.5 billion in terms of backlog” — David W. Grzebinski, Chief Executive Officer · 2026-10-28. Two-thirds of the inbound is behind-the-meter, "bring your own power" natural gas recip, and book-to-bill is well above one.
That is a genuine contrast with the tape. The market's global AI data center basket is down more than 5% over both 90 and 30 days, with data center capacity off 8%. Kirby sits adjacent to that trade, with a data-center-adjacent order book that is accelerating anyway. The reconciliation is engine scarcity: OEM availability caps how fast backlog converts into revenue, which supports price and mix rather than threatening demand. Grzebinski's framing — "having it slow down a little bit is not really bothering us" — is the tell of a seller who is supply-constrained, not demand-constrained.
The genuinely new theme is what happens after the boxes ship. Aftermarket opportunity is the company's single highest-momentum keyword this quarter — and it produces essentially no revenue today.
The aftermarket opportunity will provide a nice stability for us after this CapEx cycle starts to fade a little bit or slow down a little bit. We think the aftermarket opportunity can exceed the original product value.
Christian O'Neil put a shape on it: the "new car effect," with the ramp three to four years out and a "$100 million plus" business. Read the sequence literally and this is a company telling you the current earnings base is a down payment, not a destination.
Inland: the chemical turn, and a silence
The quiet inflection is in chemicals. Chemical volumes is new to Kirby's top themes this quarter; a year ago management was apologizing for a "chemical malaise," and in January the chairman of the gloom club was explicit: “we do talk almost every quarter about how tough it is in the chemical space” — David Grzebinski, Chief Executive Officer · 2026-01-29. Now: “we are beginning to see our chemical customers more optimistic” — Christian G. O'Neil, President and Chief Operating Officer · 2026-10-28. The drivers are external and durable-sounding — European capacity rationalization, Middle East capacity damaged in conflict, and PADD 3's cheap natural gas advantage. That is a confluence with the broader tape: "barrel of oil," "Natural gas demand" and "BCF per day" rank among the global advancers across all three horizons, and Gulf Of America has become a live market phrase, which O'Neil used almost verbatim when describing where the chemical strength is coming from.
Behind it sits Refinery utilization near record levels and a heavier crude slate on returning Venezuelan barrels. Pricing is the mechanical payoff: spot rates up low-to-mid single digits sequentially, with Spot market rates running 10%–15% above term and 35%–40% of the term book repricing in the fourth quarter. “We should have real price increases over inflation here” — David W. Grzebinski, Chief Executive Officer · 2026-10-28.
That is why the language escalated. In July the promise was gradual: “It is going to take a while to get up to the past peak in margins, which was about 28%” — David W. Grzebinski, Chief Executive Officer · 2026-07-29. On Wednesday: “we will we will be setting new peak margin records” — David W. Grzebinski, Chief Executive Officer · 2026-10-28, and, on the macro tailwinds, “it is almost feel like a super cycle here” — David W. Grzebinski, Chief Executive Officer · 2026-10-28. "Super cycle" is not a phrase this management team has used before. It may be earned — but it is also the sort of word that gets said at the top of a cycle.
Against that, cost pressures are not going away: mariner wages, skilled labor, and steel, with Fuel costs — a top-five theme last quarter — again clipping a few points off margin while contract escalators catch up. Honest, and repetitive.
What is missing is louder. The Jones Act waiver was a rank-three theme in two of the last four quarters, complete with talk of "blanket waivers" and merchant mariners; in July, O'Neil was blunt that “the waiver does need to go away” — Christian G. O'Neil, President and Chief Operating Officer · 2026-07-29. In the last two quarters it has vanished entirely — no waiver, no mariners, no D.C. Either it is resolved or it is being waited out. Management should be asked which.
What is already priced
Kirby is a $7.7 billion company trading about 4% below its April 2026 all-time high of $152.59, up 5.7% over ninety days — a stock that has already banked the record and then some. At 20.4x trailing earnings, nobody is paying for the aftermarket annuity yet. Guidance was narrowed to 10%–15% EPS growth with an explicit nod to the upper end, and inland revenue growth was raised to low double digits. Neither is the story.
The story is that Kirby is now describing two clocks running at different speeds: a marine business where spot pricing leads term pricing into a heavy renewal season and the industry fleet is not growing, and a power business where the revenue is capped by OEM engine supply and the profit pool arrives years later through service. The first clock is why 2027 estimates go up. The second is why 2029 might not look like any cycle Kirby has traded through. The Maintenance cycles that management expects to tighten the barge market in 2028 — plus a service annuity stacking on top of it — is the rare case of two unrelated businesses both inflecting at once. The risk is that "super cycle" gets said once too often before the cash shows up.