Microsoft beats, Alphabet slumps 10% as AI spending turns Alphabet cash-flow negative

Two of the biggest spenders on artificial intelligence reported within an hour of each other on Wednesday, and the market treated them as opposites. Microsoft rose as much as 4% in extended trading after beating on sales and profit. Alphabet slumped more than 10% after missing on both and, for the first time in nearly four years, falling short on the top and bottom lines at once. The dividing line was not revenue growth, which was strong at both. It was cash.

The number behind the number

Alphabet's third-quarter revenue grew 25% from a year ago to $127.58 billion, a pace most companies its size cannot touch. Yet it reported negative free cash flow of $9.07 billion, according to CNBC, a far deeper hole than the roughly $2.7 billion of negative cash flow analysts had modeled. Capital spending hit $51.36 billion in the quarter, and finance chief Anat Ashkenazi told analysts the company still expects capex to top $200 billion this year and rise "significantly" in 2027, when reports put it above $300 billion. To fund that buildout, long-term debt climbed to $125.1 billion from $21.6 billion a year earlier, CNBC reported.

Microsoft is spending heavily too, $45.2 billion on capital expenditures and finance leases in its quarter, up about 30% from a year ago. The difference is that its cash machine kept running. Free cash flow fell 27% but stayed positive, and the company guided fiscal second-quarter revenue to $96 billion to $97.1 billion, ahead of the roughly $95.6 billion Wall Street expected. The Financial Times noted Microsoft's capex actually came in below the $50.67 billion some analysts had projected, with the company citing data-center construction delays rather than a pullback in demand.

What each side reported

Microsoft. Revenue of $92.28 billion topped the $90.69 billion consensus and grew 19% year over year, per CNBC. Adjusted earnings came in at $4.89 a share against $4.73 expected. Azure, its cloud infrastructure business and now its single largest, grew 48% to $33.2 billion.

Alphabet. Adjusted earnings of $2.67 a share missed the $3.02 consensus, and revenue of $127.58 billion came in just under the $128.22 billion expected. Net income fell to $26.17 billion from $34.98 billion a year earlier. The one clear bright spot: Google Cloud revenue more than doubled to $30.7 billion, beating the $28.7 billion analysts looked for.

Who it actually hits

Anyone positioned for the AI buildout. The Nasdaq 100 closed Wednesday down 0.4% at 29,483 even before these results, and the after-hours split sets up a messy open. The worry Alphabet crystallized is not that the spending is happening, it is that investors are no longer willing to wave through capital spending that outruns the cash coming in the door, especially from the one hyperscaler whose cash flows had always covered it. Microsoft's reward for keeping free cash flow positive, and Alphabet's punishment for letting it go negative, is the market drawing that line in real time. The 10-year Treasury yield sat near 4.99%, which raises the bar every dollar of future AI profit has to clear to be worth borrowing for today.

The read-through lands Thursday and beyond, when the rest of the group reports and traders measure each one against the same test: not how fast revenue grows, but whether the spending still leaves cash behind.

Sources: Microsoft and Alphabet third-quarter results as reported by CNBC and CNBC, with capex detail via the Financial Times; index levels via the Chronicle markets page. Figures are from the companies\' reports and analyst estimates cited by those outlets. This is market information, not investment advice.