Caterpillar (CAT) earnings preview: what to watch in Q3 2026

Caterpillar reports its third-quarter 2026 results (the three months to 30 September) before the US market opens on Thursday, October 29, 2026. The company announced the date in its own media advisory: the release is due at 5:30 a.m. Central time, with the analyst call at 7:30 a.m.

What last quarter showed

Our Q2 2026 analysis found a record quarter, though one that looked better on paper than underneath:

Most of the growth came from selling more machines: higher volume made up $3.1 billion of the $4.0 billion sales increase. But three things that are not about selling machines lifted profit. The first was a $392 million one-time refund of tariffs that the Supreme Court ruled unlawful. The second was $314 million more "other income" from currency, hedging and investment gains. The third was dealer stocking: independent dealers added $600 million to their own inventory, and in Construction Industries they added $1.9 billion over the first half. Caterpillar books a sale when a dealer buys, whether or not an end customer has bought yet.

What management said to expect

Our Q2 report quoted management's outlook from the 10-Q:

• Q3: "strong sales and revenues growth" from higher volume and better pricing in all three machine segments, partly offset by higher manufacturing, SG&A and R&D costs. Tariff costs of about $600 million, half of them in Construction Industries. Construction dealers to add only "slightly" to inventory, less than in Q3 2025. Smaller price gains in Resource Industries than in Q2.
• Full year 2026: sales growth "in the mid-to-high teens" (raised from "low double digits" in Q1), about $2.2 billion of tariff costs before refunds, about $3.5 billion of capital spending, and a 23.0% underlying tax rate. The outlook assumes no further tariff refunds.

Three things to watch

1. The operating margin with no refund in it. Q2's real comparison point is about 19.0%, not 20.9%. Q3 carries roughly $600 million of tariff costs and, on management's assumption, no refund to offset them. A margin near or above 19% would show that higher volumes are paying for the extra costs. A drop well below it would mean Q2's margin depended on the one-off.

2. Construction Industries as dealers stop stocking up. This segment had the best quarter (sales +35%, a 23.3% segment margin) and also the most help from dealers filling their lots. With dealer additions expected to be "slight" in Q3 and a decrease of more than $1.0 billion guided for Q4, watch whether segment sales growth slows sharply from 35% and whether the margin stays close to 23% while the segment carries half of the tariff bill.

3. Backlog and the factory ramp. The $72.1 billion backlog, driven by Power & Energy's generators and turbines for data centres, is the strongest evidence that demand is real. Watch whether it keeps growing or starts to be drawn down faster than new orders arrive. Separately, Resource Industries (mining trucks and quarry equipment) kept only about 17 cents of profit from each extra dollar of sales in Q2 because its plants cost more as they ramped up. A figure clearly above 17 cents would show the new capacity is starting to pay off.

What would change the picture: a cut to the "mid-to-high teens" full-year growth guide. Management raised it once already this year, so holding it with Q3 in hand would point to the backlog turning into shipments on schedule.

We will publish our full analysis of the Q3 results on the Caterpillar company page after the release.