Microsoft and Alphabet: Cloud Growth Rates Do Not Yet Tell Us How Well Revenue Converts to Cash

Understanding the Growth Gap Starts with Revenue Composition

Azure revenue grew 48% year over year, while Google Cloud grew 103%. The gap is striking, but it does not establish that Google’s cloud services are growing faster. Microsoft’s reported Azure business includes consumption-based cloud and AI services and virtual desktops. Google Cloud includes consumption-based and subscription services, as well as product revenue primarily from TPU system sales. Alphabet management said GCP still accounts for the vast majority of revenue and that growth remained strong excluding TPU sales, but it did not disclose a specific growth rate. My judgment is therefore that Google Cloud’s expansion is supported by revenue, while the growth gap between the two companies’ service businesses on a comparable basis still cannot be determined.

Evidence: [1] [2] [4] [6]

Profit Improvements Cannot Be Compared Across Different Levels of Profit

Google Cloud reported operating income of $11.121 billion, with its operating margin rising from 23.7% to 36.2%, showing improved profitability for the segment under the company’s reporting basis. Microsoft reported a cloud gross margin of 66%, which measures a different level of profit and cannot be compared directly with Google Cloud’s operating margin. Microsoft management attributed the year-over-year decline in cloud gross margin to Azure’s larger share of revenue, saying that improvements in product-level gross margins, particularly Azure’s, partly offset the impact. This explanation does not support simply attributing the overall gross margin decline to a drag from AI investment. Likewise, Google Cloud’s segment margin is insufficient to represent the group’s return on AI investment, because some shared AI research and development costs and corporate expenses are not allocated to the segments.

Evidence: [4] [5] [2] [3]

The Quarterly Cash Gap Is Clear; Business-Level Returns Still Need to Be Separated

Microsoft reported operating cash flow of $58 billion and cash purchases of property and equipment of $39.4 billion, and disclosed free cash flow of $18.6 billion on its earnings call. Its $45.2 billion in capital expenditures includes finance leases and cannot be used directly as a substitute for cash spending. Alphabet reported operating cash flow of $42.290 billion, cash purchases of property and equipment of $51.355 billion and negative free cash flow of $9.065 billion. These figures show that Microsoft’s group operating cash flow covered its cash capital investment for the quarter, while Alphabet’s did not. But these are group-level cash flows. They cannot establish the cash returns of the two companies’ respective cloud businesses, much less justify concluding that Google Cloud’s profitability weakened because Alphabet’s free cash flow turned negative.

Evidence: [3] [4]

TPU Sales Add a Test Between Delivery and Cash Collection

Alphabet management said a $5.2 billion cash payment for an EC fine and inventory buildup for TPU system sales affected operating cash flow, while capital expenditures also affected free cash flow. The company described a sales process in which contracts are signed first, inventory is built, and delivery and invoicing then bring in cash. This suggests that assessing the quality of TPU sales expansion requires examining both revenue and cash collection after delivery; one quarter’s cash flow is insufficient for a conclusion. Signed contracts provide a demand basis for building inventory, but they do not guarantee timely delivery or cash collection. Current disclosures also do not quantify the specific cash flow impact of TPU inventory buildup, so the entire cash shortfall cannot be explained as a temporary use of cash.

Evidence: [6]

Contracts and Investment Plans Still Need to Materialize

Microsoft’s commercial remaining performance obligations totaled $677 billion, with management expecting approximately 30% to be recognized as revenue over the next 12 months. This includes unearned revenue and contracted amounts that will be invoiced and recognized as revenue in the future. It is neither exclusively Azure orders nor cash already received. Alphabet maintained its full-year 2026 capital expenditure guidance of $195 billion to $205 billion and expects another significant increase in 2027. These disclosures provide indications of contracted revenue and investment plans, respectively, but do not yet answer the question of future cash returns. A firmer assessment of expansion quality will require subsequent recognition of contracted revenue, cash collection from TPU deliveries and operating cash flow to support continued investment.

Evidence: [2] [3] [6]

What to watch next

• Whether Alphabet discloses the scale of TPU system sales and Cloud’s growth rate excluding those sales, allowing service revenue growth to be assessed separately.
• Whether TPU inventory converts into cash receipts as deliveries occur. Whether subsequent operating cash flow supports management’s explanation of cash tied up in inventory buildup.
• Whether revenue recognition from Microsoft’s commercial remaining performance obligations meets expectations. Whether cash flow continues to cover cash capital investment.
• How Alphabet’s actual capital expenditures compare with guidance. Whether operating cash flow can grow correspondingly as investment increases.