Alphabet Q3 2026: Google Cloud Grows 103%, Backlog Hits $561 Billion and Free Cash Flow Turns Negative

By Carlos Montiel | Enterprise AI Specialist
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Published: 2026-10-29 | By: Carlos Montiel | Reading time: ~5 minutes
Alphabet: Google Cloud grows 103% and backlog hits $561 billion, but cash flow turned negative and the stock falls

On October 28 Alphabet reported revenue of $127.6 billion (+25%) and a Google Cloud that more than doubled its sales (+103%, to $30.7 billion), with a $561 billion backlog. But $51.4 billion of capex left free cash flow at -$9.1 billion, and the stock fell about 10% after the close.

The Quarter's Numbers

According to the earnings summary published by Yahoo Finance and GuruFocus, and independent analysis from Senanni, Alphabet's revenue rose 25% to $127.6 billion and operating income rose 30% to $40.6 billion (a 31.8% margin). Google Cloud posted $30.7 billion in revenue with $11.1 billion of operating income: its margin went from 23.7% to 36.2% in a year.

Q3 revenue: $127.6B (+25%) Google Cloud: $30.7B (+103%) Cloud operating margin: 36.2% (23.7% a year earlier) Cloud backlog: $561B ($514B in June, $462B in March) Q3 capex: $51.4B (+114% YoY) 2026 capex guidance: $195-205B Free cash flow: -$9.1B

The CFO said a little over 55% of the backlog will be recognized as revenue over the next 24 months. Nearly 100 customers use TPU systems, and the company expects more revenue from TPU system sales in 2027.

Why the Stock Fell Despite the Growth

Adjusted EPS was $2.12 against roughly $3.00 expected, but a large part of that gap comes from an unrealized accounting loss on its SpaceX stake (about $11 billion pre-tax, per Senanni). Excluding that item, Senanni estimates a shortfall of between 7% and 11%. Operating income also came in about $2 billion below consensus (FactSet), and Search revenue grew 12%, with lower monetization in AI Mode.

Senanni highlights another data point: free cash flow was negative for the second quarter in a row, trailing-twelve-month cash flow dropped from $73.5 billion to $19.7 billion (including a $5.2 billion European Commission fine), and Alphabet bought back no shares, compared with $11.5 billion a year earlier. The roughly 10% drop is an after-hours figure; we haven't yet found the regular-session close.

A figure worth keeping separate: backlog is not revenue. It's signed contracts that turn into sales as Google delivers capacity. If capacity (chips, power, data centers) slips, revenue slips with it.

How This Works: High Backlog, Low Cash

The pattern matches Meta and Microsoft this earnings season: contracted compute demand is growing faster than the ability to pay for it from operating cash flow. Alphabet holds $265.1 billion in cash and investments and $125.1 billion in long-term debt, so it isn't in trouble, but the company said 2027 capex will be "significantly higher," which will raise depreciation and could pressure Cloud margins.

What it means for your company: a $561 billion backlog signals that Google Cloud's capacity is heavily committed. If you're planning large AI workloads on GCP or with TPUs, reserve capacity early, get availability commitments in writing, and keep a portability plan to another provider. And if your pricing assumptions depend on compute getting cheaper, remember that the seller is financing it today with negative cash flow.

Sources: Yahoo Finance (Q3 2026 earnings call summary), GuruFocus, Senanni (Substack), Benzinga.

Carlos Montiel
Enterprise AI Solutions Architect
Specialist in LLMs, Agents, and Orchestration
guatemalia.com/#contacto · info@guatemalia.com

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