Caterpillar put $4.1 billion of cash into stock in the first nine months of 2026, twice the drain of a year earlier. Its cash from operations still rose 30%, because buyers had already put up $4.0 billion of what the build absorbed [1]. The advance balance covered 24% of the stock on its books. Those advances on machines that had not shipped added $4.0 billion, against $1,649 million a year earlier [1]. Tractor Supply added 11.2% to its stock in the same stretch with no such line behind it, and its cash from operations fell by a third [2]. The same build landed on opposite sides of the cash figures, and the difference is the part of your inventory bill that is already prepaid.

The big picture:

Both firms had a reason to carry more goods, and neither build is odd on its own. Caterpillar’s stock rose 22.5% while its nine-month sales rose 21%, so the build tracked the order book [1]. The size of it is not the part that matters. The money under it is.

Customer advances are payments a buyer makes before a machine ships [4]. Caterpillar records them as a liability rather than revenue, and that balance rose to $5,329 million from $3,314 million at the start of the year because the cash arrived before the machines did [1]. I looked for the word “financing” beside the stock lines in both filings and did not find it, though the two builds are the same choice priced two ways.

Tractor Supply’s build had no buyer standing behind it. Its stock rose 11.2% while sales rose 3.6%, average stock per store went to $1,290.8 thousand from $1,231.9 thousand, and turns slipped to 3.08 from 3.24 over nine months [2]. Same-store sales rose 0.4% against 3.9% a year earlier, and that is the demand the extra goods were ordered to meet [2]. The retailer borrowed instead. Its long-term debt rose to $2,230.3 million from $1,744.2 million [2].

By the numbers

  • 162 days vs 129 — stock on hand: Caterpillar’s $22,214 million of stock against nine-month cost of sales is 162 days of goods, and Tractor Supply’s $3,618.8 million against its own cost line is 129 days, both worked out from the closing balances [1][2].
  • $5,329 million — customer advances: Caterpillar’s money paid before shipment, up from $3,314 million at the start of the year, with $4,002 million arriving on the cash-flow line against $1,649 million [1].
  • $10,593 million — cash from operations: Caterpillar’s nine-month figure rose 30% from $8,148 million, while Tractor Supply’s fell 33%, to $882.6 million from $1,310.4 million [1][2].
  • 3-3/4 to 4 percent — policy rate: the range the Federal Reserve held on Oct. 28, on a 10–2 vote, with two members wanting a quarter-point rise [3].

What I’d watch:

Three lines answer the question next quarter, and each one shows up in the next filing. The first is Caterpillar’s advances balance: if it stops growing while stock keeps rising, the funding has moved from customer deposits to its own balance sheet, and the cash gain that flattered this quarter reverses [1]. The second is dealer stock, which reaches the sales line before it reaches the stock line. Caterpillar’s mining, quarry and heavy-construction sales rose “primarily due to the impact from changes in dealer inventories” [1]. Part of that volume was dealers stocking, not end users buying. That is sell-in, not sell-through.

The third is payables, the other zero-cost source in the chain. Tractor Supply’s payables rose to $1,659.9 million from $1,549.2 million, which covered $110.7 million of a $529.8 million build [2]. The rest came from cash and borrowed money. That is not a scandal, it is the terms a retailer can use, and the borrowing shows up in the debt line. I am watching whether the next meeting raises the price of that borrowed part, since two members already voted for a quarter-point rise [3]. The rate is also the smallest piece of the carrying cost of stock, which is why any self-funded build costs more than the interest line shows.

The catch

This is a contrast between two firms, not a market study. An equipment maker can book advances because it sells years before it builds, while a retailer sells at the counter and cannot take a deposit on a bag of feed. So 24% describes Caterpillar’s business model, not a target another firm can copy. My view is that the share still matters, because the other choice is your own cash, and the price of your own cash is set at every policy meeting.

An advance is not free, because it carries a ship date. The buyer has paid for a machine that must be shipped, so the cash behind the build is a promise to finish it. If demand softens, the firm holding the deposits must ship into the weaker market. Caterpillar’s quarter shows the other side of the same margin: $128 million of tariff refunds lifted operating profit while material costs including tariffs still ran through the factory [1].

At a glance

The shift: Stock builds now arrive funded two ways, by customer deposits or by the balance sheet. The number: Customers paid for 24% of Caterpillar’s stock before it shipped. The risk: A deposit is a promise to ship, and a self-funded build pays the policy rate.

Related reading

Sources

[1] Caterpillar Inc., “Caterpillar Reports Third-Quarter 2026 Results” (Exhibit 99.1 to Form 8-K), Oct. 29, 2026 — https://www.caterpillar.com/content/dam/caterpillarDotCom/releases/3q26/3q26-caterpillar-inc-financial-results.pdf

[2] Tractor Supply Company, “Tractor Supply Company Reports Third Quarter 2026 Financial Results; Reaffirms Fiscal Year 2026 Outlook”, Oct. 22, 2026 — https://corporate.tractorsupply.com/newsroom/news-releases/news-releases-details/2026/Tractor-Supply-Company-Reports-Third-Quarter-2026-Financial-Results-Reaffirms-Fiscal-Year-2026-Outlook/default.aspx

[3] Board of Governors of the Federal Reserve System, statement of the rate-setting committee, Oct. 28, 2026 — https://www.federalreserve.gov/monetarypolicy/files/monetary20261028a1.pdf

[4] Caterpillar Inc., annual report to shareholders on Form 10-K (customer-advances accounting policy) — https://www.caterpillar.com/en/investors/financial-information/proxy-materials/annual-report-to-shareholders.html