Key Notes
- Alphabet fell about 10% in premarket trading, while Microsoft gained nearly 4% after their latest earnings reports.
- Alphabet recorded negative free cash flow of $9.07 billion, compared with Microsoft’s positive $18.63 billion for the September quarter.
- Both companies reported strong cloud growth, but investors are weighing infrastructure spending against cash generation and the pace of AI monetization.
Alphabet Inc. (NASDAQ: GOOGL, GOOG) fell about 10% in premarket trading on October 29, while Microsoft Corp. (NASDAQ: MSFT) gained nearly 4%, as investors delivered sharply different verdicts on the technology companies’ latest earnings.
The split put cash generation and the cost of expanding AI infrastructure at the center of the market reaction. Alphabet reported negative quarterly free cash flow despite rapid cloud growth, while Microsoft beat earnings expectations and remained cash-flow positive even as its investment bill increased.
These are premarket moves, rather than final closing results. CNBC reported that Alphabet would face its worst-ever post-earnings decline if it finished the session more than 9.77% lower. The regular trading session had yet to begin.
Cash Flow Divides the Market Reaction
Alphabet generated $42.29 billion of operating cash flow in the third quarter, but spent $51.36 billion on purchases of property and equipment. That left free cash flow at negative $9.07 billion, according to its earnings release.
The cash outflow was a central issue in the results we reported earlier. Revenue still grew 25% to $127.58 billion and operating income rose 30% to $40.58 billion. The problem for investors is how much of that operating performance remains after the infrastructure buildout.
Microsoft, by comparison, reported $18.63 billion of free cash flow for its fiscal first quarter, which also ended in September. That was down 27% from a year earlier, but it remained positive. The comparison shows a difference in current funding pressure, rather than evidence that either company has finished spending on AI.
Alphabet also ended September with $265.10 billion in cash, cash equivalents and marketable securities. One negative quarter of free cash flow therefore does not mean it has run out of liquidity.
Search Growth Meets an AI Monetization Test
The challenge extends beyond the timing of data-center construction. Google Search and other advertising revenue increased 12% to $63.35 billion, but the result disappointed market expectations.
Chief Business Officer Philipp Schindler said lower monetization in AI Mode partly affected Search performance, according to CNBC’s account of the earnings call. Google is expanding advertising across AI Overviews and AI Mode internationally, making the revenue earned from newer search experiences an important test.
Chief Executive Sundar Pichai presented a stronger picture of usage in his prepared remarks. He said year-over-year query growth was the fastest in five years, including growth in commercial queries.
Those measures can move in different directions. More searches and deeper engagement do not automatically produce the same advertising revenue per interaction. Alphabet must show that its changing search experience can support the economics of the business while infrastructure costs rise.
Cloud Demand Remains Strong at Both Companies
Google Cloud revenue more than doubled, rising 103% to $30.71 billion. Operating income reached $11.12 billion, giving the business a margin of approximately 36.2%.
Microsoft’s Azure revenue increased 48% to $33.17 billion, with the same growth rate on a constant-currency basis. Microsoft Cloud, a broader measure that includes additional services, generated $63.9 billion.
These figures are not identical business definitions: Google Cloud includes its own mix of infrastructure, platforms, productivity software and other offerings, while Microsoft reports Azure and Microsoft Cloud separately. They nevertheless show substantial demand at both companies.
Microsoft’s total revenue reached $92.28 billion and adjusted earnings were $4.89 per share, beating consensus estimates, as we previously reported. Its outlook also calls for Azure growth of 49%–50% in constant currency next quarter, with demand still exceeding available capacity.
Spending Timing Matters Alongside Spending Scale
Microsoft’s capital expenditure, including finance leases, was $45.2 billion, below the roughly $50.67 billion analysts expected. Cash purchases of property and equipment were $39.37 billion, a different measure that excludes the same treatment of lease additions.
Management attributed part of the spending gap to delayed third-party capacity deliveries. Its earnings call points to quarterly capital expenditure above $50 billion in the next period and faster spending in the second half of fiscal 2027 as capacity arrives.
The miss should therefore not be read as a permanent retreat from AI investment. Supplier shares have already reacted to the timing uncertainty, as we reported in our coverage of CoreWeave and Nebius.
Alphabet maintained its $195 billion–$205 billion capital-spending outlook for calendar 2026 and expects another significant increase in 2027, without providing a numerical budget. The commitment keeps the question of future returns firmly in focus.
The Opening Session Will Test the Premarket Split
Alphabet’s product development continues alongside those financial pressures. Google unveiled Gemini 4 Carbon with leading results on one major independent intelligence index, although its initial rollout is restricted, as we reported previously.
Technical progress can strengthen its competitive position, but benchmark scores do not establish how quickly new models will generate profitable revenue. Equally, Microsoft’s positive cash flow does not remove the risks attached to higher future spending.
The regular session will determine whether the early share-price divergence persists and whether Alphabet crosses the post-earnings record threshold. For now, the results highlight investors’ focus on the cash required to turn rising AI demand into sustainable financial returns.
