Amazon’s record margin meets a $42.4bn free-cash-flow outflow

Amazon’s margin hit a record. Its trailing free cash flow swung to a $42.4bn outflow

Why it matters

Amazon.com, Inc. posted a 13.9% record operating margin in the third quarter as AWS sales grew 39.3%. Over the trailing 12 months, free cash flow moved from a $14.8bn inflow to a $42.4bn outflow. The operating engine is producing more cash; the build-out is absorbing more of it.

Mara Voss31 October 2026Reading Time 2 minLast update: 31 October 2026

Editorial illustration of the physical infrastructure behind cloud-capacity investment; no specific Amazon site is shown.

Summary

Amazon reported $201.944bn in Q3 net sales and $28.076bn in operating income; its 13.9% operating margin was a company record.
Trailing 12-month free cash flow flipped from a $14.788bn inflow to a $42.357bn outflow through September, even as operating cash flow rose 29%.

Analysis

Amazon’s quarter produced the kind of margin headline executives like to keep. Net sales were $201.944bn, operating income was $28.076bn, and operating margin reached 13.9%, which the company called a record. AWS added about $46.0bn of sales, up 39.3% year over year, a $184bn annualised revenue run rate. Its operating income was $17.773bn.

The cash question runs on a longer clock. For the 12 months through September, operating cash flow rose 29% to $168.300bn from $130.691bn a year earlier. Free cash flow moved the other way: a $42.357bn outflow after a $14.788bn inflow in the prior-year period. Amazon’s operations generated more cash, but purchases of property and equipment grew faster than that cash generation.

Those net purchases, after proceeds from asset sales and incentives, reached $210.657bn over the trailing year, up from $115.903bn. The $94.754bn increase is the arithmetic behind the company’s rounded $94.8bn figure. Amazon said the increase primarily reflected AI investment. It expects roughly $220bn in cash capital expenditure during 2026. That is a company-wide estimate; the release does not assign it to AWS.

CEO Andy Jassy said AWS revenue growth rates were projected to exceed 40% in both 2027 and 2028. That is his projection, not formal company guidance. The release gives AWS revenue and operating income, alongside company-wide cash spending, but no AWS-specific capex allocation and no stand-alone AI revenue or operating contribution. AWS growth shows customers are buying cloud services. It cannot, by itself, show how much AI earns or what return the AI build is producing.

That leaves a clean but unfinished equation. Amazon’s current operation is more profitable; the next capacity wave is taking a larger bite out of cash. The missing bridge is specific: AWS investment alongside a measurable AI revenue or earnings line. With those figures, investors could compare spending and return inside the same business perimeter. Until then, the record margin is evidence of today’s operating performance, and free cash flow is the public bill for building what comes next.