Google Cloud revenue doubles, shares fall more than 10% after hours: why hasn't AI growth turned into cash?

Written by: 潮向研究

Alphabet delivered a Q3 earnings report that left the market conflicted.

Revenue was US$127.58 billion, up 25% year over year, marking the 13th consecutive quarter of double-digit growth.

Google Cloud revenue reached US$30.7 billion, doubling year over year, making it the fastest-growing business quarter in the company's history. Cloud operating profit was US$11.1 billion, up 209% year over year. But free cash flow was negative US$9.1 billion.

This is not a one-quarter fluctuation: Q1 free cash flow was still positive US$10.1 billion, Q2 turned to negative US$5.9 billion, and Q3 widened to negative US$9.1 billion. Over three quarters, the trend from surplus to cash burn is clear.

The stock fell more than 10% after hours. The market is pricing a simple concern: AI is indeed making money, but the pace of cash burn is faster.

Cloud growth is real

First, the good news: Google Cloud's 103% year-over-year growth is genuine, and its mix is improving.

Of the US$30.7 billion in quarterly revenue, growth was driven by three layers: GCP infrastructure (GPU/TPU compute rental), enterprise AI solutions (Gemini API, Vertex AI platform), and a new variable, direct sales of TPU hardware systems.

Starting in Q2, Alphabet began selling complete TPU systems to customers needing large-scale on-premises compute, and that revenue is booked directly in the Cloud segment.

Google Cloud CEO Thomas Kurian spoke publicly on an earnings call for the first time, saying demand came from 'AI labs, capital markets, financial services institutions, and enterprise customers.' Cloud backlog reached US$561 billion, with about half expected to be recognized as revenue within the next 24 months.

Operating margin jumped from 23.7% in the year-ago period to 36.2%. Cloud is no longer a growth story that loses money—it is already a profit machine.

The problem is that this profit machine requires much more fuel than the profit it produces.

Where did the money go?

Q3 capital expenditures were US$51.36 billion, higher than Q2's US$44.9 billion and Q1's US$35.7 billion. The first three quarters have already burned through US$132 billion cumulatively.

Full-year capex guidance remains at US$195-205 billion. The implied Q4 single-quarter spend is between US$63-73 billion. CFO Anat Ashkenazi added: 'Capital expenditures in 2027 will increase significantly compared with 2026.' Analysts estimate 2027 may exceed US$300 billion.

For comparison: in full-year 2024, Alphabet's total capital expenditures were US$57.4 billion. The first three quarters of 2026 have already exceeded more than twice the full-year 2024 total.

The money went mainly in two directions: about 60% for servers (GPU, TPU, custom AI chips), and about 40% for data center construction and network equipment. Alphabet is currently advancing more than 90 data center projects worldwide simultaneously, covering the United States, Europe, and Southeast Asia.

To bridge this funding gap, Alphabet completed the largest equity raise by a technology company in history in June, US$80 billion, including a US$10 billion private placement subscribed by Berkshire Hathaway.

Over the past year, Alphabet also issued more than US$85 billion in bonds, pushing total debt above US$100 billion.

The company has gone from the tech industry's largest stock repurchaser to its largest equity issuer and debt financier. The transformation took only one year.

Revenue is not outpacing spending

Is Cloud growth not fast enough? NO, mainly incremental revenue cannot cover incremental capital expenditures.

Simple math: Q3 total revenue increased by about US$25 billion year over year, but capital expenditures increased by about US$27.5 billion year over year. Revenue is growing, but for every dollar of new revenue, more than a dollar is spent on building infrastructure.

Operating profit of US$40.58 billion remains strong, up 30% year over year. But operating cash flow of US$42.29 billion, minus capital expenditures of US$51.36 billion, yields a negative number. This means even though operations are still profitable, the cash burn on the investment side has eaten all profits and then some.

EPS tells the same story. Q3 GAAP EPS was $2.12, down 26% year over year and well below the $3.01 expected by analysts. The prior-year period was $2.87. Note that Q2 EPS was $9.11, but it included nearly $99 billion in equity investment gains (mainly from mark-to-market appreciation in SpaceX and Anthropic holdings), which are one-time items.

Stripping out this factor, the Q3 profit decline reflects real operating and investment pressure, not a distorted comparison base.

Search ads: growth is slowing

Google Services revenue was $96.3 billion, up just 11% year over year; compared with Cloud's 103%, this pace looks lackluster.

Search ads remain Alphabet's largest revenue source, growing 12% year over year in Q3, but the pace has gradually slowed from 19% in Q1 and 17% in Q2. Management had already warned on the Q2 earnings call: 'Starting in Q3, we will enter a tough year-over-year comparison base as search growth accelerated last year.'

YouTube ad revenue was $11.2 billion, up about 9% year over year. Google Network (the third-party ad network) continued to shrink. The overall advertising business's growth ceiling is in the 10-12% range, which is no longer enough on its own to support Alphabet's high valuation and heavy spending.

This is precisely the fundamental reason Alphabet is betting on AI and Cloud,Search ads are the existing 'cash cow,' but the incremental growth story must be told by Cloud. The cost of telling that story is higher than anyone imagined.

After-hours plunge of 10%

The 10% after-hours drop was the immediate reaction after Alphabet missed both revenue and EPS expectations for the first time in nearly four years.

The market's core anxiety is where the 'visible endpoint' of the investment cycle lies.

At the current pace, Alphabet will spend about $200 billion in 2026 to build AI infrastructure, and potentially more than $300 billion in 2027. Even if Cloud grows at 100%, free cash flow may not turn positive until 2028 or later.

For a company once seen as a 'money printer,' two consecutive quarters of negative free cash flow, $80 billion in equity financing, and $100 billion in debt are a combination of signals enough to change investors' basic assumptions about Alphabet's valuation model.

How long is the conversion chain from investment to output to free cash flow? Can Alphabet really defend its bottom line?

In the earnings report, Sundar Pichai said, 'AI is driving an expansionary phase for Alphabet.' But for investors, the other side of an expansionary phase is a contractionary phase for cash flow.

Which one reaches the inflection point first will determine GOOGL's trajectory over the next year.

Source: TechFlow