Amazon’s third-quarter sales grew 12%, but that headline needs a calendar beside it. Prime Day moved into the second quarter in most large countries, making this year’s comparison unusually awkward. Meanwhile, Amazon Web Services (AWS) supplied nearly two-thirds of operating profit. The shopping event explains part of the sales picture; the cloud business explains much of the earnings power.
In its October 29 results, Amazon.com (NASDAQ: AMZN) reported $201.9 billion in sales for the quarter ended September 30. Operating income reached $28.1 billion, and Amazon called its 13.9% operating margin a company record. Those are strong operating results, even though the bottom-line comparison looks less cheerful.
Prime Day changed quarters, not just shopping carts
Last year’s Prime Day fell entirely in the third quarter. This year, it occurred in the second quarter for most large countries. Amazon estimates that without that shift, third-quarter year-over-year sales growth would have been about four percentage points higher.
That is management’s estimate of a different calendar, not extra revenue Amazon actually booked in Q3. Nor does it mean the reported growth rate was wrong. It means the two quarters contain different promotional schedules. A sale doesn’t become a second sale just because we’d prefer a tidier comparison.
For someone trying to judge the retail business, this matters more than it might first appear. A major shopping event can move purchases between reporting periods, so one quarter’s growth rate alone is a shaky way to diagnose customer demand. The useful question is whether the business is improving across comparable periods, rather than whether one conveniently rounded headline looks exciting.
AWS carries much more profit than its sales share suggests
Amazon’s earnings presentation shows AWS sales of $46.0 billion, about 23% of the company total. Its operating income was $17.8 billion. Using the unrounded segment figures, AWS supplied approximately 63% of Amazon’s consolidated operating income.
That’s a very different picture from imagining Amazon primarily as the boxes arriving at the door. It’s also a practical reason to look beyond a company’s sector label: the largest source of revenue isn’t necessarily the largest source of operating profit.
AWS revenue rose 39.3% from a year earlier. Its operating margin was 38.7%, up from 34.6% a year earlier but below the previous quarter’s 39.4%. The annual improvement is real; so is the sequential dip. Rapid sales growth doesn’t guarantee that each new dollar will carry the same margin.
The other businesses contributed, too. North America’s operating income reached $8.7 billion, versus $4.8 billion a year earlier, while International rose to $1.6 billion from $1.2 billion. Calling this entirely an AWS profit story would give the rest of Amazon rather too little credit.
One caution belongs beside that improvement: the year-earlier quarter included a $2.5 billion Federal Trade Commission settlement charge and $1.8 billion in estimated severance costs. The settlement affected North America, and severance affected all three segments. This isn’t a comparison of two clean operating baselines.
Why net income and operating profit tell different stories
Net income declined to $20.7 billion from $21.2 billion. Amazon says the comparison was primarily affected by a $9.5 billion pre-tax gain on its Anthropic investments in the year-earlier quarter.
An investment gain sits outside operating income. That distinction helps explain why rising operating profit and lower net income can appear in the same report without contradicting each other. It would be misleading to read the net-income decline alone as evidence that Amazon’s day-to-day operations deteriorated.
The cash commitment is still substantial
There is a less comfortable number alongside those margins. For the twelve months ended September 30, Amazon generated $168.3 billion of operating cash flow but spent $210.7 billion on property and equipment, net of sales proceeds and incentives. The difference was negative free cash flow of $42.4 billion. These are trailing-year figures, not just Q3.
Operating cash flow increased 29%; equipment spending grew faster. Amazon attributes the increase in net equipment purchases primarily to AI investment. That doesn’t make all equipment spending an AI bill, or prove what return the new capacity will earn.
Amazon’s companion financial-measures disclosure adds an important boundary: its non-GAAP free-cash-flow measure doesn’t deduct items such as acquisitions, nonmarketable investments or debt principal payments. It isn’t a complete account of changes in cash, and it isn’t discretionary money waiting to be distributed.
My takeaway is to keep the calendar adjustment and the profit mix connected, without letting either erase the cash commitment. Prime Day complicates the retail comparison. AWS has become an outsized contributor to operating profit. The next useful evidence will be whether that growing business can sustain attractive margins as the enlarged equipment base gets put to work.