Google Cloud revenue doubled to $30.7 billion, but Alphabet's free cash flow turned negative at $9.1 billion

Google Cloud has just posted growth that large companies almost never report, and Alphabet's cash flow went negative to pay for it. Both facts come from the same release, filed October 28, 2026. Together they are a compact version of the whole AI infrastructure trade: demand is showing up in the revenue line, and the bill is showing up in the cash line.

The cloud number

Alphabet's results for the quarter ended September 30, 2026 show total revenue of $127.6 billion. Google Cloud revenue was $30.7 billion, up 103% year over year, and Google Cloud operating income was $11.1 billion. That puts Cloud's operating margin at about 36%, a calculation from the filed figures.

Doubling revenue at that scale is rare, and the margin is not the thin margin of a business buying growth. CEO Sundar Pichai framed it this way in the release: "Google Cloud revenues grew 103%, powered by huge demand for our AI infrastructure and AI solutions." The wording is worth reading slowly. The revenue figure is audited accounting. The attribution to AI is the company's own description, and the release does not split Cloud revenue by product.

The cash

The same release shows net cash from operating activities of $42.3 billion and purchases of property and equipment of $51.4 billion. Subtract one from the other and free cash flow for the quarter was negative $9.1 billion. Over the trailing twelve months free cash flow remains positive at $19.7 billion, so this is a swing, not a collapse. But a company with Alphabet's cash machine in search is now spending more than it earns in operating cash in a single quarter, and the capex figure is up 114% from a year earlier according to XTB's analysis.

Net income was $26.5 billion and diluted earnings per share were $2.12. XTB reported that analysts had expected EPS near $3.00 and that net income fell 25%, with an $8.7 billion loss on equity investments weighing on the result. Shares dropped about 8% in after hours trading on October 28. XTB also reported roughly $28.7 billion in bonds and $12.4 billion in equity raised; we have not been able to confirm those two figures in the filing text, so treat them as the analyst's reading.

What the filing leaves out

A careful reader should notice the gaps. The release contains no executive commentary on capital spending and no backlog figure, which means anyone quoting a Cloud backlog or a 2027 capex number from this quarter is quoting something other than the release. Some aggregators have circulated a 2027 capex figure above $300 billion. We could not find it in the filing, and we are not repeating it.

Alphabet's own 2026 capex guidance, as XTB reports it from July, is $195 billion to $205 billion. XTB calculates that this implies roughly $63 billion to $73 billion in the fourth quarter alone, up from $51.4 billion now. That arithmetic is straightforward, though it rests on the guidance range being unchanged, which the release itself does not state.

The comparison that matters

Alphabet's quarter looks different next to its peers. Amazon reported $77.3 billion of capital spending and a trailing free cash flow outflow of $42.4 billion, as we detailed in our look at Amazon's filing. Meta's capital spending was $34.9 billion, with free cash flow of negative $2.1 billion. Alphabet sits in the middle on spending but at the top on cloud growth: 103% against AWS's 39%. For anyone asking which hyperscaler is winning the AI infrastructure market on the evidence in the filings, that growth gap is the finding.

It is also a base effect worth naming. AWS is a larger business, so 39% on $46.0 billion adds more dollars than a smaller percentage on a bigger base might suggest. Google Cloud added roughly $15.5 billion of revenue in a year on a $30.7 billion quarter. Amazon's cloud unit added about $13 billion by our arithmetic on the reported 39%. Different bases, similar absolute adds.

A note on definitions

The free cash flow figure here follows the arithmetic in Alphabet's own release: net cash provided by operating activities of $42.3 billion less purchases of property and equipment of $51.4 billion. Other companies and data vendors sometimes adjust for leases, incentives or acquisitions, which is why you may see slightly different free cash flow numbers for the same quarter elsewhere. We use the filed line items throughout and say so when a number is a derived figure. That is also why we avoid quoting a single blended capex number for 2027: no filed document we opened supports one. ## What to watch

Three lines matter in the next report. The first is Cloud operating margin, which was about 36% this quarter and is the best indicator of whether Google is selling capacity profitably or buying share. The second is capital spending against operating cash flow, because a second negative free cash flow quarter would make this a trend. The third is whether Alphabet provides a backlog and a capex outlook, the two numbers investors most want and this release withheld.

Our take: this was an excellent quarter for the cloud business and an unambiguous one for the cost of building it. The company that can fund both from its own earnings has an edge over those that cannot, and Alphabet can for now. The test is the fourth quarter, when guidance implies spending of $63 billion or more.