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TL;DR
Amazon reported 39% AWS revenue growth in the third quarter of 2026, its fastest pace since late 2021, alongside a record $578 billion AWS backlog. The company also spent $75.9 billion on capital investments during the quarter and reported trailing 12-month free cash flow of negative $42.4 billion, sharpening investor concerns over how quickly AI infrastructure spending will generate cash.
Amazon reported 39% third-quarter revenue growth at AWS, its fastest pace since late 2021, as the cloud unit’s operating income rose to $17.8 billion. But Amazon also spent $75.9 billion on capital investments in the quarter, and trailing 12-month free cash flow fell to negative $42.4 billion, putting the cost and timing of the company’s AI build-out at the center of investor concerns.
AWS generated $46.0 billion in revenue from July through September, up 39% year over year, according to Amazon’s October 29 results. Operating income increased 55% to $17.8 billion. The company’s reported sequence of AWS growth rates has accelerated for six quarters, from 17% to 39%, excluding currency effects, according to the supplied earnings summary.
Chief Executive Andy Jassy said AWS’s contracted future revenue, or backlog, reached $578 billion, up from $496 billion three months earlier. The $82 billion increase points to substantial commitments for future cloud services, but that backlog is not cash already received: customers pay as services are delivered over time.
Amazon’s cash capital spending was $75.9 billion in the quarter. Chief Financial Officer Brian Olsavsky said on the earnings call that the spending “primarily relates to AWS and AI.” Jassy said most of the company’s approximately $220 billion capital-spending plan for 2026 is directed to AWS, and Amazon expects to spend “meaningfully more” in 2027.
The financial strain is visible in cash flow. Amazon reported negative $42.4 billion in free cash flow over the 12 months through September, compared with positive $14.8 billion a year earlier. Over that same 12-month period, operating cash flow was $168.3 billion and capital spending was $210.7 billion. Amazon’s long-term debt rose from $65.6 billion to $173.1 billion over the first nine months of 2026, according to the source material.
Investors also weighed results beyond AWS. Amazon reported earnings per share of $1.89, below the $1.96 analysts expected, while advertising revenue missed expectations and the company’s holiday-quarter revenue forecast came in slightly below estimates, according to the supplied account citing CNBC, LSEG and StreetAccount data. Amazon shares fell more than 6% in after-hours trading Thursday.
Infographic 01 · The scorecard
Fastest cloud growth in five years, deepest cash gap.
Amazon’s third quarter (July to September 2026), scored against the four numbers from my 28 October preview.
The four numbers from my preview, scored for Amazon
Status chips: ok = healthy, hold = watch, urgent = warning sign. My assessment.
- 1 · Capex planAbout $220B for 2026, unchanged holdRaised from $200B in July, citing memory prices. 2027: “meaningfully more”, no number.
- 2 · Cloud vs. capexAWS +39%, operating income +55% holdGross capex +120% vs. a year earlier ($77.3B vs. $35.1B, my arithmetic). Revenue grows fast; spending faster.
- 3 · Free cash flow + fundingDeeply negative, financed with bonds urgentAbout −$33.5B in the quarter (my arithmetic). $48.1B of new long-term debt in Q3.
- 4 · CapacityCustomers take it as fast as it is installed okBacklog +$82B in one quarter. Big blocks reserved well in advance; visibility into 2027–2028.
What beat
- AWS revenue $45.98B vs. $45.29B expected
- AWS operating income $17.77B vs. $16.97B expected
- Operating margin 13.9%, Amazon’s highest ever
What missed
- Earnings per share $1.89 vs. $1.96 expected
- Advertising $19.64B vs. $20.82B expected
- Q4 revenue guide midpoint $243.5B vs. $244.5B expected
- Shares down more than 6% after hours (CNBC; GeekWire: more than 7%)
Sources: Amazon Q3 2026 release, 29 Oct 2026; Amazon Q3 call, third-party transcript; CNBC, 29 Oct; CNBC, 30 Jul; GeekWire, 29 Oct. Analyst expectations as reported by CNBC (LSEG, StreetAccount). Quarterly free cash flow and capex growth: my arithmetic from Amazon’s cash flow statement. Status chips: Thorsten Meyer.
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The Cash Cost of AWS Expansion
The results show the central trade-off in Amazon’s AI investment: demand for cloud capacity is growing, but the infrastructure needed to serve it must be financed and built before all the contracted revenue arrives. The backlog offers evidence that customers have committed to future AWS services; it does not establish how quickly those commitments will convert into revenue, profit or cash.
For investors, the issue is not simply whether AWS is growing. It is whether the growth and future returns will justify a spending plan that Amazon says will rise further. Capital investments include assets such as data centers and equipment, while depreciation spreads the cost of those assets across their useful lives. Amazon’s depreciation and amortization expense increased 25% to $20.9 billion in the quarter, according to the supplied material, adding to the ongoing cost of the build-out.
The spending also matters to cloud customers. Amazon says large blocks of AI capacity are being reserved well in advance, while short-term capacity on older AI chips is selling at a premium. That suggests capacity availability and price can vary by chip type and contract timing. The company has not provided a detailed breakdown showing how much of its total capital spending is allocated to individual categories such as data centers, chips, power and networking.
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From Backlog to Data Centers
Amazon’s investment plan has grown as demand for cloud and AI computing has increased. The supplied source says the company planned about $200 billion in capital spending in February, then raised its 2026 plan in July, citing higher memory prices. The current expectation is about $220 billion this year, with “meaningfully more” forecast for 2027. Those are company projections, not final spending totals.
Amazon says the money is going largely toward AWS infrastructure. Jassy described the work as installing an AI accelerator roughly every 14 seconds. Amazon’s property and equipment rose from $357.0 billion at the end of 2025 to $508.9 billion at the end of September, a change of about $152 billion, according to the source material. That figure covers property and equipment broadly, not only AI assets.
The company is also developing its own Trainium AI chips and Graviton processors. Jassy said revenue commitments for the two chip lines had risen more than 20-fold in a year, and Amazon said customers saved more than $2 billion during the quarter by using its chips. Those are statements from Amazon, not independently verified measurements in the material provided. Amazon plans to offer Trainium chips outside AWS beginning in late 2027, according to the source.
When Spending Becomes Cash
The results do not show exactly when the $578 billion backlog will be recognized as revenue, how much of it relates specifically to AI, or what margins those contracts will produce. Amazon has not provided a precise timeline for turning the current infrastructure surge into positive free cash flow. Its 2027 spending outlook is also directional rather than a specific dollar forecast.
The precise allocation of capital spending among data centers, chips, memory, networking, energy and other equipment is not set out in the supplied figures. Nor is the company’s estimate of savings from its own chips independently assessed here. The quarterly free-cash-flow figure of about negative $33.5 billion in the source is an author calculation; the reported figure available for comparison is the trailing 12-month total of negative $42.4 billion.
Amazon’s results also leave open how much the after-hours share decline reflected AWS investment concerns versus the earnings-per-share shortfall, advertising miss and holiday-quarter forecast. The available material reports the share move and the results, but does not establish a single cause for the market reaction.
Spending and Capacity in 2027
Investors will be watching Amazon’s next results for updates on AWS growth, backlog conversion, capital spending and free cash flow. The company has said it expects about $220 billion in 2026 spending and “meaningfully more” in 2027, making its next guidance an important test of how quickly infrastructure investment is continuing to expand.
Customers will also be watching for information about AWS capacity, pricing and availability as new data centers and chips come online. Amazon’s stated plan to sell Trainium chips outside AWS from late 2027 provides a longer-term milestone, but the company has not detailed the launch scale or expected customer demand. Until it gives more information, the pace of spending and the timing of returns remain central open questions.
Key Questions
How fast did AWS grow in the third quarter of 2026?
AWS revenue rose 39% year over year to $46.0 billion from July through September, according to Amazon. The supplied earnings summary describes this as the unit’s fastest growth pace since late 2021.
Why is Amazon’s free cash flow negative?
Amazon’s capital spending exceeded its operating cash flow over the trailing 12 months through September. The company reported $210.7 billion in capital spending against $168.3 billion in operating cash flow, producing negative $42.4 billion in free cash flow.
What does AWS’s $578 billion backlog mean?
It is the value of AWS contracted future revenue reported by CEO Andy Jassy. It signals customer commitments, but it is not revenue already collected; the timing of delivery and payment varies, and the supplied material does not state how much of the backlog is specifically tied to AI.
How much does Amazon expect to spend on capital investments?
Amazon expects to spend about $220 billion in 2026 and said it anticipates “meaningfully more” in 2027. Those are company expectations, not confirmed final spending totals.
Why did Amazon shares fall after the results?
Amazon shares fell more than 6% in after-hours trading Thursday. The reported results included negative free cash flow, earnings per share below analysts’ expectations, an advertising miss and a holiday-quarter revenue forecast slightly below estimates; the available material does not establish how much each factor contributed to the decline.
Source: ThorstenMeyerAI.com
