Cloud computing is one of the biggest profit engines in the stock market. Three companies dominate it: Amazon Web Services, Microsoft Azure, and Google Cloud. When they report quarterly results, often in the same week, the cloud figures can move the whole technology sector. Here is where to find the numbers and how to read them.
Where each company reports cloud
| Company | Cloud business | How it is disclosed |
|---|---|---|
| Amazon (AMZN) | Amazon Web Services (AWS) | Separate segment with revenue and operating income |
| Microsoft (MSFT) | Azure | Growth rate for Azure and other cloud services, reported inside the Intelligent Cloud segment |
| Alphabet (GOOGL) | Google Cloud | Separate segment with revenue and operating income |
Microsoft’s fiscal year ends June 30, so its October report covers its fiscal first quarter. Amazon and Alphabet use calendar quarters. Keep that in mind when comparing headlines.
The four metrics that matter
- Revenue growth: the year-over-year growth rate is the headline number. Investors care about whether growth is accelerating or slowing compared with the prior quarter.
- Operating margin: how much of each revenue dollar becomes operating profit. AWS and Google Cloud report operating income, so you can calculate it directly.
- Backlog: signed contracts not yet recognized as revenue, often called remaining performance obligations. A growing backlog suggests future revenue is already committed.
- Capacity comments: when management says demand exceeds available capacity, growth is limited by how fast they can build data centers, not by customers.
How AI shows up in the numbers
Companies building AI products rent large amounts of computing power from the cloud providers, which shows up as faster cloud revenue growth. The providers also sell their own AI models and tools through their clouds. But serving that demand requires enormous spending on chips, servers, and power, which shows up in capital expenditures. Our explainer on hyperscaler capex and AI spending covers that side, and free cash flow explained shows why the spending matters to shareholders.
Why a strong cloud number can still disappoint
Expectations for these businesses are high and specific. Analysts often track cloud growth to a fraction of a percentage point. A result that grows 30% can still send a stock lower if investors expected 32%, or if guidance points to slower growth next quarter. Our guide to why a stock can fall after beating earnings explains the dynamic.
Reading the report step by step
- Find the cloud segment table in the earnings release or, for Microsoft, the Azure growth figure in the commentary.
- Compare growth with the prior quarter and with what analysts expected.
- Calculate or check the operating margin where available.
- Look for backlog or remaining performance obligations.
- Listen to the call for comments on capacity constraints, AI demand, and next year’s capital spending.
For the full walkthrough of a big tech report, see how to read a big tech earnings report.
What this means for you
If you own any of these companies, or an index fund, cloud results affect you. During earnings week:
- Note cloud growth versus last quarter: is it speeding up or slowing?
- Check operating margin for AWS and Google Cloud.
- Look for backlog and capacity comments as signs of future growth.
- Compare cloud growth with the change in capital spending.
- Remember that the reaction depends on expectations, not just the raw number.
The bottom line
Cloud results combine a growth story with a spending story. Read revenue growth, margins, and backlog alongside capital spending to understand what the market is reacting to. This article is for education only and is not investment advice.
