Caterpillar's Order Book Grew 2.4 Times in Three Years. The Part It Cannot Deliver Within a Year Grew 5.2 Times.

By Kresmion Research, August 6, 2026

Caterpillar reported its first 20 billion dollar quarter on Tuesday, and 29.2 billion dollars of the record order book behind it will not ship in a year.

We read the same disclosure in all fourteen Caterpillar quarterly and annual filings from the first quarter of 2023 to the second quarter of 2026. In every one of them the company reports the dollar amount of backlog it believes to be firm, and then separates out the portion that falls beyond the following twelve months. That second figure is rarely quoted. It has moved a long way.

At the end of the first quarter of 2023 the firm backlog was approximately 30.4 billion dollars, of which 5.6 billion sat beyond twelve months, 18.4 percent. At the end of June 2026 it was 72.1 billion dollars, of which 29.2 billion sat beyond twelve months, 40.5 percent. The share rose in 11 of the 13 quarter-on-quarter steps in between.

The decomposition is the finding. Over those three years the near-dated part of the book, the part deliverable inside a year, grew 1.7 times. The part beyond a year grew 5.2 times.

Key takeaways

The series

Every figure below is quoted from the filing for that period. The wording is materially identical across all fourteen.

Figures in billions of dollars, as reported.

The stretching started before the growth did

The obvious reading of a long order book in 2026 is that a surge of demand overwhelmed the factory. The sequence in the series is the other way round.

Between the first quarter of 2023 and the third quarter of 2024 the total backlog fell 5.6 percent, from 30.4 billion dollars to 28.7 billion. Over exactly the same stretch the beyond-twelve-month portion rose 21.4 percent, from 5.6 billion to 6.8 billion, taking the share from 18.4 percent to 23.7 percent. The book was shrinking and lengthening at the same time.

Only afterwards did the total take off, from 28.7 billion at the end of September 2024 to 72.1 billion at the end of June 2026, a factor of 2.5 in seven quarters. The share kept climbing through that too, from 23.7 percent to 40.5 percent.

That rules out one explanation and not another. The lengthening was underway a year and a half before the order surge, so the surge did not cause it. But the same filings show the composition shifting in that earlier period too: the third-quarter 2024 10-Q reports that the backlog increased in Energy and Transportation while Construction Industries and Resource Industries decreased. A shift toward long-lead products fits the early period as well as the late one.

Two readings, and the filings do not settle which

There are two explanations for a book that lengthens like this, and it matters which one is right.

The first is lengthening lead times: the same products now take longer to deliver because the factory is the constraint. Caterpillar is certainly selling delivery slots years out. On the earnings call chief executive Joe Creed said the company is "starting to take orders into 2029 and 2030 already," and described gas prime orders extending into the back half of 2028 and 2029, with turbines longer still.

The second is product mix, and it is the more mundane one. Caterpillar sells excavators, which ship quickly, and turbines and large reciprocating engines, which do not. If the long-lead products simply became a bigger share of what customers order, the average book lengthens arithmetically without any lead time changing at all.

The filings point at mix. Every recent quarter attributes the largest backlog increase to Power and Energy, and the first-quarter 2026 10-Q adds that "the backlog for large reciprocating engines and turbine products continues to grow within Power and Energy."

We cannot separate the two, and neither can anyone else working from public filings, because Caterpillar discloses the backlog only in total. There is no segment-level backlog figure in any of the fourteen filings. So the mix explanation is sufficient on the available evidence, and we are not claiming to have ruled it out.

One data point complicates the pure-mix story without resolving it. Power and Energy's share of primary-segment sales actually fell over the year, from 41.1 percent in the second quarter of 2025 to 38.8 percent in the second quarter of 2026, because Construction Industries grew faster. Sales mix and backlog mix are different things, so this does not settle the question, but the long-lead segment was not taking over the revenue line while the book stretched.

What follows holds under either explanation, which is why the measurement is worth publishing even though the cause is undetermined.

What a longer book changes either way

Reported backlog has become a weaker guide to next year's revenue. In the first quarter of 2023, 81.6 percent of the book was due to convert inside twelve months. Now 59.5 percent is. The same headline figure describes a slower conversion into sales.

And the way a slowdown would show up may change. A short book absorbs weaker demand through order intake: customers stop ordering, the backlog shrinks, revenue follows a few quarters later, and the falling order rate gives warning along the way. With 29.2 billion dollars sitting more than a year out, more of the adjustment would have to come from orders already booked, through deferral or cancellation, which does not announce itself the same way.

That second point is our inference rather than a disclosed risk, and it deserves a flag. Caterpillar describes the figure only as backlog "believed to be firm." It does not disclose cancellation terms, penalties, or deposit arrangements anywhere in these filings, so how cancellable the far end actually is cannot be established from public documents. On long-lead power equipment, industry practice usually involves staged payments that make walking away costly, which would cut the other way.

The company will not call this a data center story

It is tempting to read a record industrial order book in 2026 as an artifact of the AI buildout. Caterpillar declines to make that claim, and its filings support the caution.

The latest 10-Q says the order backlog increased across the three primary segments, with the largest increase in Power and Energy. The earnings release names data centers precisely once, and narrowly: sales rose in large reciprocating engines and in turbines and turbine-related services, "primarily in data center applications." That sentence describes the Power Generation line, not the backlog. Creed's framing in the release was that strong order rates and a growing backlog "reflect broadening momentum across all three of our primary segments," and on the call he said demand is strong "across oil and gas, mining and construction, not just in one area."

The segment numbers point the same way. Power and Energy, which houses the data center engines and turbines, grew 17 percent in the quarter. Construction Industries grew 35 percent, roughly twice as fast. Resource Industries grew 20 percent. The fastest-growing part of the quarter was the part serving construction.

The evidence that cuts against this

The strongest argument against reading any of this as a physical constraint is that the market is not paying the owners of the input that is supposedly scarce.

Across the AI-power-and-equipment names Kresmion covers, taking each to its most recent close, the eleven equipment makers are up 50.7 percent year to date on an equal-weight basis. The six regulated utilities are up 9.4 percent. The four merchant power generators, the purest listed claim on scarce electricity, are down 17.1 percent, with Constellation Energy down 25.0 percent and NRG down 24.2 percent. If electricity were the binding constraint, the companies that own generation would be capturing the rent. They are the worst performing group in the complex.

A peer book also shows no comparable stretching. In its 10-Q for the same period Emerson put its backlog at approximately 9.6 billion dollars and said it "expects to recognize approximately 75 percent of its remaining performance obligations as revenue over the next 12 months, with the remainder substantially over the following two years." Three quarters of Emerson's book converts inside a year against Caterpillar's 59.5 percent, so the lengthening is not an industry-wide phenomenon that Caterpillar happens to sit inside.

GE Vernova's filing for the same quarter is worth reading alongside Caterpillar's for a different reason. Its remaining performance obligations totalled 176,284 million dollars, and it defines that measure as including "unfilled firm and unconditional customer orders for equipment and services, excluding any purchase order that provides the customer with the ability to cancel or terminate without incurring a substantive penalty." A direct peer therefore states explicitly that its book excludes cancellable orders. Caterpillar's disclosure carries no equivalent language, which is precisely why the cancellation question above cannot be settled from its filings.

Three caveats on our own series.

The three annual reports in the run state the figure as the amount not due to be filled in the following calendar year rather than the following twelve months. Because the fiscal year ends on December 31 that is the same window, but the wording differs, so we tested whether the three annual points sit oddly against their neighbours. The quarter-on-quarter change in the share entering those three periods was minus 0.6, plus 3.0 and plus 6.3 points. They are not one-directional, and the two large ones fall in the stretch where the trend was steepest anyway, so we see no evidence of a wording artifact. With only three annual observations we cannot firmly exclude one.

The company renamed the relevant segment from Energy and Transportation to Power and Energy during the period, so segment-level comparisons across 2024 and 2026 are not like-for-like even though the consolidated backlog figures are.

The only acquisition disclosed in the window is RPMGlobal Holdings Limited, an Australian software company approved by the Federal Court of Australia in February 2026. A software business does not add equipment delivery slots, so the backlog series is organic.

The market may also have priced the point already. Caterpillar closed Wednesday at 871.08 dollars, up 52.1 percent year to date but 18.2 percent below its June 30 closing peak of 1,064.90. Several names in the same complex are further off their own 2026 highs: Super Micro by 42.9 percent, Modine by 36.6 percent, Powell Industries by 31.8 percent, Vertiv by 26.1 percent. Whether this group is outperforming or de-rating depends on the start date chosen, so both windows belong in any honest description.

What would change the read

The observable that settles it is the same disclosure in the third-quarter 10-Q, due around early November.

If the total keeps growing while the beyond-twelve-month share keeps climbing, the queue is still lengthening and throughput is the constraint. If the total grows while that share stabilises or falls, the factory is catching up and this was a transition rather than a ceiling. If the total flattens while the far end stays near 29 billion dollars, that is the cancellation exposure described above starting to matter.

For cross-asset context on industrial and power demand, see the current macro overview and our research notes archive.

Frequently asked questions

What is a firm backlog?

It is the value of orders a company treats as committed rather than provisional. Caterpillar reports it each quarter as "the dollar amount of backlog believed to be firm," and separately discloses how much of it falls beyond the following twelve months. The second disclosure is what makes duration measurable, and it is the one this note is built on.

Is 72.1 billion dollars a record for Caterpillar?

It is the highest figure in the fourteen filings we read, covering the first quarter of 2023 through the second quarter of 2026, and each of the last five quarters set a new high within that window. We did not examine filings before 2023, so we are not claiming an all-time company record.

Does the growth in the backlog come from AI data centers?

Not according to Caterpillar. The 10-Q attributes the increase to all three primary segments with the largest increase in Power and Energy, and the earnings release names data centers only in relation to large reciprocating engines and turbines. Construction Industries, which does not primarily serve data centers, grew 35 percent in the quarter against Power and Energy's 17 percent.

Why would a longer backlog be a concern rather than good news?

A long book is good for revenue visibility and bad for flexibility. It locks in work, which is part of why the shares are higher this year. It also means a larger share of promised revenue depends on conditions two or more years out, and that portion is exposed to cancellation and deferral rather than to a visible slowdown in new orders.

Could this just be a change in product mix?

Yes, and we cannot rule it out. Turbines and large reciprocating engines take far longer to build than excavators, so a shift in orders toward those products lengthens the average book without any lead time changing. Caterpillar's filings attribute the largest recent backlog increases to Power and Energy and specifically to large reciprocating engines and turbine products, which is consistent with mix. Because the company discloses backlog only as a single total, with no segment breakdown in any of the fourteen filings, the two explanations cannot be separated from public data. The consequences described in this note follow from the duration itself and hold under either explanation.

How was the beyond-twelve-month series built?

By reading the Order Backlog disclosure in each of the fourteen Caterpillar 10-Q and 10-K filings for periods ending 2023-03-31 through 2026-06-30, taking both the total and the beyond-twelve-month figure verbatim from each, and computing the share. No figure was interpolated or derived from a third party.

Sources

Caterpillar Inc., second-quarter 2026 earnings release, exhibit 99.1 to Form 8-K, filed 2026-08-04. https://www.sec.gov/Archives/edgar/data/18230/000001823026000040/ex991toformcat2q2026earnin.htm

Caterpillar Inc., Form 10-Q for the period ended 2026-06-30, filed 2026-08-05. https://www.sec.gov/Archives/edgar/data/18230/000001823026000046/cat-20260630.htm

Caterpillar Inc., Form 10-Q for the period ended 2026-03-31. https://www.sec.gov/Archives/edgar/data/18230/000001823026000021/cat-20260331.htm

Caterpillar Inc., Form 10-K for the year ended 2025-12-31. https://www.sec.gov/Archives/edgar/data/18230/000001823026000008/cat-20251231.htm

Caterpillar Inc., Form 10-Q for the period ended 2025-09-30. https://www.sec.gov/Archives/edgar/data/18230/000001823025000048/cat-20250930.htm

Caterpillar Inc., Form 10-Q for the period ended 2025-06-30. https://www.sec.gov/Archives/edgar/data/18230/000001823025000040/cat-20250630.htm

Caterpillar Inc., Form 10-Q for the period ended 2025-03-31. https://www.sec.gov/Archives/edgar/data/18230/000001823025000016/cat-20250331.htm

Caterpillar Inc., Form 10-K for the year ended 2024-12-31. https://www.sec.gov/Archives/edgar/data/18230/000001823025000008/cat-20241231.htm

Caterpillar Inc., Form 10-Q for the period ended 2024-09-30. https://www.sec.gov/Archives/edgar/data/18230/000001823024000053/cat-20240930.htm

Caterpillar Inc., Form 10-Q for the period ended 2024-06-30. https://www.sec.gov/Archives/edgar/data/18230/000001823024000045/cat-20240630.htm

Caterpillar Inc., Form 10-Q for the period ended 2024-03-31. https://www.sec.gov/Archives/edgar/data/18230/000001823024000020/cat-20240331.htm

Caterpillar Inc., Form 10-K for the year ended 2023-12-31. https://www.sec.gov/Archives/edgar/data/18230/000001823024000009/cat-20231231.htm

Caterpillar Inc., Form 10-Q for the period ended 2023-09-30. https://www.sec.gov/Archives/edgar/data/18230/000001823023000056/cat-20230930.htm

Caterpillar Inc., Form 10-Q for the period ended 2023-06-30. https://www.sec.gov/Archives/edgar/data/18230/000001823023000047/cat-20230630.htm

Caterpillar Inc., Form 10-Q for the period ended 2023-03-31. https://www.sec.gov/Archives/edgar/data/18230/000001823023000022/cat-20230331.htm

Emerson Electric Co., Form 10-Q for the period ended 2026-06-30, backlog and remaining performance obligations disclosure. https://www.sec.gov/Archives/edgar/data/32604/000003260426000043/emr-20260630.htm

GE Vernova Inc., Form 10-Q for the period ended 2026-06-30, remaining performance obligations disclosure and definition. https://www.sec.gov/Archives/edgar/data/1996810/000199681026000148/gev-20260630.htm

Kresmion equity price history, closes to 2026-08-05. https://kresmion.com/macro/overview