🔍 Read the full analysis: Amazon’s Cash Is Behind AWS’s Rapid Growth, With AI In The Mix on ThorstenMeyerAI.com
TL;DR
Amazon said AWS revenue grew 39% to $46 billion in the third quarter, its fastest growth rate since late 2021, while its contracted future revenue backlog reached $578 billion. The company also reported $75.9 billion in quarterly cash capital spending, negative trailing 12-month free cash flow of $42.4 billion, and a weaker-than-expected holiday-quarter revenue outlook; its shares fell more than 6% in after-hours trading.
Amazon reported 39% third-quarter revenue growth at AWS on Thursday, its fastest rate since late 2021, as the cloud unit’s contracted future revenue backlog rose to $578 billion. But the company’s cash investment in infrastructure reached $75.9 billion for the quarter, and trailing 12-month free cash flow turned negative, prompting investors to weigh strong cloud demand against the cost and timing of Amazon’s AI build-out.
AWS revenue rose to $46 billion for the July-to-September quarter, and operating income increased 55% to $17.8 billion, according to Amazon’s earnings release. The company said AWS had recorded six consecutive quarters of accelerating growth, with quarterly growth rates rising from 17% to 39% since the second quarter of 2025, excluding currency effects. Chief Executive Andy Jassy said the AWS backlog of contracted future revenue grew from $496 billion three months earlier to $578 billion.
Amazon spent $75.9 billion in cash capital spending during the quarter, primarily on AWS and AI, Chief Financial Officer Brian Olsavsky said. Jassy said most of Amazon’s roughly $220 billion planned 2026 spending would go to AWS and that the company expected to spend “meaningfully more” in 2027. The company had raised its 2026 plan from about $200 billion in July, citing higher memory prices, according to the source report.
For the 12 months through the third quarter, Amazon generated $168.3 billion in operating cash while capital spending totaled $210.7 billion. The resulting free cash flow was negative $42.4 billion, compared with positive $14.8 billion a year earlier. Earnings per share of $1.89 missed analysts’ $1.96 estimate, while advertising results also fell short and Amazon’s holiday-quarter revenue forecast was slightly below expectations, according to figures cited from LSEG and StreetAccount. Its shares dropped more than 6% in after-hours trading.
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 Cost of Building AWS Capacity
The results show the trade-off Amazon faces as it expands cloud infrastructure for AI: demand and contracted commitments are growing, but the facilities, chips and equipment needed to serve customers require large payments before all that capacity produces revenue. Amazon’s backlog is an indicator of contracted future business, not cash already collected or profit already earned. The timing of when customers use the capacity and when Amazon receives payment matters to investors evaluating the spending.
The investment also has implications beyond Amazon’s balance sheet. Businesses that rent AWS computing capacity may benefit from additional supply, but capacity availability, pricing and the mix of chips on offer could shape how quickly they can run AI workloads. Amazon said some large blocks of AI capacity are reserved in advance and that short-term capacity on older AI chips can command a premium. These are company-reported conditions; the release does not quantify their effect on customers’ overall costs.
For Amazon, the near-term cash burden is paired with costs that continue after equipment is installed. Depreciation and amortization rose 25% to $20.9 billion in the quarter, according to the source report. The company’s investment pace and eventual returns will influence how much cash remains available for other operations, including its retail business.
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How Amazon’s AI Build-Out Expanded
The spending is directed toward data centers and the equipment inside them, including processors, AI accelerators, memory and power infrastructure. Amazon’s property and equipment rose from $357 billion at the end of 2025 to $508.9 billion at the end of September, according to the source report. Jassy said the company was installing an AI accelerator about every 14 seconds, describing the pace of deployment rather than a separately verified count.
Amazon is also developing its own chips. Jassy said revenue commitments for its Trainium AI chips and Graviton processors had grown more than 20-fold in a year and that its chip business was growing at triple-digit rates. Amazon said customers saved more than $2 billion during the quarter by using its chips; that figure is the company’s estimate. The company said most of its Bedrock AI service runs on Trainium, while also offering access to models from outside developers.
Amazon has said most AWS capacity is owned or secured through long-term leases. Jassy argued that providers relying on specialized outside data-center operators can earn lower operating margins, a competitive claim rather than an audited comparison. The company also announced a $1 billion “Built Together” initiative for communities near U.S. data centers, including energy and water efficiency upgrades. Amazon has not disclosed how much of its overall capital spending is going specifically to power.
When Spending Becomes Cash Flow
The $578 billion AWS backlog reflects contracted future revenue, but Amazon has not specified in the material cited how quickly that amount will be recognized as sales or how much profit it will ultimately produce. The order book’s growth is evidence of commitments, not a guarantee that every project will be delivered on the same schedule or at the expected margin.
Amazon has not provided a detailed breakdown of the quarter’s $75.9 billion in cash capital spending across data centers, chips, land, power and other equipment. The source report’s estimate of roughly $33.5 billion in negative free cash flow for the quarter is its own arithmetic; Amazon’s cited figure is negative $42.4 billion for the trailing 12 months. The reasons for the after-hours share decline cannot be established from the price move alone, although the source report points to the spending, earnings miss and holiday-quarter outlook as investor concerns.
It also remains unclear how quickly new facilities will become operational, whether memory and power constraints will affect deployment, and how much of Amazon’s projected spending will be financed through operating cash, borrowing or other means. The source report says long-term debt rose from $65.6 billion to $173.1 billion over nine months, but does not attribute the full change to any single spending category.
Watch the Holiday Quarter Forecast
Investors will look to Amazon’s holiday-quarter results for evidence that retail and advertising performance is improving and for updates on AWS growth, infrastructure deployment and cash generation. The company’s latest revenue forecast came in slightly below analyst expectations, according to the source report, though the precise forecast range is not included in the material provided.
Further updates on 2026 and 2027 investment plans will show whether Amazon’s spending remains near the levels Jassy described. Customers and investors will also watch for information about new AI capacity, chip adoption and the timing of Trainium sales outside AWS, which Amazon plans to begin in late 2027, according to the source report. Until the company reports more detail, the pace at which contracted demand converts into revenue and cash flow remains a central open question.
Key Questions
How quickly did AWS grow in the third quarter?
AWS revenue increased 39% to $46 billion in the July-to-September quarter, according to Amazon. The company described it as its fastest growth rate since the end of 2021.
The shares fell more than 6% in after-hours trading. The source report points to Amazon’s heavy infrastructure spending, earnings per share below analysts’ estimates, weaker-than-expected advertising results and a holiday-quarter revenue forecast slightly below expectations. A share-price move alone does not establish which factor mattered most to investors.
What does Amazon’s $578 billion AWS backlog mean?
It is the amount of contracted future revenue AWS said it had, up from $496 billion three months earlier. It is a measure of commitments, not revenue already collected, and the timing of when it will be recognized is not specified in the source material.
How much did Amazon spend on capital investment in the quarter?
Amazon’s cash capital spending was $75.9 billion in the third quarter. Olsavsky said it primarily related to AWS and AI; the company has not provided a full category-by-category breakdown in the material cited.
When could Amazon sell Trainium chips outside AWS?
The source report says Amazon plans to sell its Trainium AI chips outside AWS from late 2027. The material does not provide further details on availability, pricing or which customers will be eligible.
Source: ThorstenMeyerAI.com
