Google Cloud's Growth Explained: What It Means for Alphabet

Google Cloud revenue rose 82% year on year to $24.8 billion in the second quarter of 2026, its operating margin reached about 35.6% and its backlog of signed contracts reached $514 billion, according to reports on Alphabet's July results. The growth is driven by demand for AI computing and enterprise AI products that exceeds what Alphabet can supply, and it is expensive: 2026 capital spending guidance was raised to $195 to $205 billion and free cash flow turned negative in the quarter. Alphabet is expected to report third-quarter results on October 28, 2026.

How fast is Google Cloud growing?

Operating income more than tripled to about $8.8 billion, and the margin rose from about 20.7% to 35.6% a year earlier, per Trefis's summary of the results. Cloud is now roughly a fifth of Alphabet's revenue of about $120 billion for the quarter.

Why is Google Cloud growing so fast?

• A backlog that keeps growing: signed-but-not-yet-recognized contracts were $462.3 billion at the end of March and $514 billion at the end of June, about 11% higher in one quarter. Alphabet expects to recognize just over half of it as revenue within 24 months. Management attributed the latest rise mainly to enterprise AI offerings.
• Demand for AI computing outruns supply: management described itself as supply-constrained, so revenue is limited by how fast capacity is built, not by demand.
• Its own chips: Alphabet plans to sell systems built on its Tensor Processing Units (TPUs), and expects most of that revenue in 2027.
• Bridging with others' capacity: it planned to rent more third-party capacity in the third quarter while it builds its own, which management said would bring modest margin pressure.

Backlog is a promise, not revenue, and customers can reduce or delay commitments. See Alphabet's quarterly report for how it defines it.

What does the growth cost?

In the second quarter Alphabet spent about $44.9 billion on capital projects against about $39.1 billion of operating cash flow, so free cash flow was negative, and management said it expects capital spending to increase significantly again in 2027. The 2026 spending guide was raised from $180 to $190 billion to $195 to $205 billion. For a stock, the question is whether that spending turns into cash flow later, and how quickly.

What does this site's data say about Alphabet?

From this site's weekly data (October 17, 2026), for Alphabet (GOOGL):

The gap between a 17.6 P/E and a 1.5% free cash flow yield is the most useful number here. Earnings look cheap while cash is being poured into data centres, so the investment case depends on that spending paying back. Among followed superinvestors, Alphabet is the most widely held stock: 11 of 21 funds own it, and 7 of them added to it in their latest filings. Read the Superinvestors page for who and how much, and what growth a share price implies to test the price yourself.

What to watch when Alphabet reports on October 28

• Cloud growth against 82%: does it hold above 60% or accelerate?
• The backlog against $514 billion and how much converts within two years.
• Cloud operating margin against 35.6%, given the extra third-party capacity.
• Capital spending guidance and free cash flow, and what is said about 2027.

Alphabet is also a reported investor in Anthropic, which has confidentially filed for an IPO: read when Anthropic could go public. This is a snapshot from before the report. Reported figures come from press coverage of Alphabet's results and its filings, and Alphabet's own Q2 release should be checked for exact numbers.

Sources

• Alphabet Form 10-Q for the quarter ended March 31, 2026 (SEC): Q1 2026 Google Cloud revenue and backlog
• Trefis: One reason Alphabet stock looks better than its price (October 22, 2026): Q2 2026 cloud revenue, margin, backlog, capital spending
• The Motley Fool: Alphabet's cloud backlog just topped $500 billion (October 7, 2026): backlog and free cash flow

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