Amazon, Alphabet, and Microsoft Just Dropped AI Cloud Numbers-Alphabet Is the One I'd Buy Now

Alphabet led last week's AI earnings read-through

Alphabet looked strongest last week.

The broader market message was not that AI demand has faded. It is that investors now want proof that capital spending is turning into revenue and earnings, not just larger depreciation schedules. On that score, Alphabet had the cleanest setup and delivered it.

Alphabet showed the clearest payoff so far

Revenue rose 22%, operating income climbed 30%, and net income jumped 81%. More important for the AI trade, Alphabet appeared to deliver the strongest near-term payoff from AI. In a market tired of hype, that is the signal investors have been rewarding.

Cloud growth and scale make the case stronger

Alphabet also had one of the stronger Cloud prints. Cloud revenue reached Cloud revenue of $20 billion, while Cloud operating margin hit 32.9%. That combination matters: revenue shows customers are buying, and margin suggests the model is already profitable enough to matter now.

The backdrop only makes that more important. Combined AI infrastructure spending is expected to exceed $700 billion in 2026. Amazon and Microsoft are each set to spend roughly $200 billion this year on data centers. That is an enormous build-out, and it leaves less room for error.

The bear case still matters

The caution case is not hard to see. Alphabet has raised its own capex plan and reported negative free cash flow, so execution risk remains. But in a cycle where investors are questioning the costs of the race and how long returns will take, the company showing the clearest monetization path gets the edge.

Amazon and Microsoft confirm demand, but not a clean margin win

Amazon and Microsoft still prove a key point: AI demand is real. What they did not fully prove is that the spending is already translating into a frictionless earnings story.

Microsoft still has strong Azure demand

Microsoft reported Azure and other cloud services revenue grew 40%, driven by demand across the platform and continued growth in all workloads. That is a strong demand signal, not a teaser.

Microsoft's cost growth is still the watchpoint

The pressure point is elsewhere. In two straight quarters, cost of revenue rose faster than the revenue headline: - One quarter, cost of revenue increased 43%. - The next quarter, it increased 47%.

Microsoft also said the heavier cost pressure was tied to investments in AI infrastructure to support growing customer demand and increased GitHub Copilot usage. Bulls can argue that is what early conversion looks like. The market, however, has made clear it wants leverage sooner.

Why Alphabet still ranks first

That is why Alphabet still gets priority. The recent earnings sweep showed investors rewarding companies that can link AI investment to revenue more clearly, while pulling back from heavy spenders where earnings growth is under pressure. Amazon and Microsoft still have huge scale advantages. Right now, though, their setup looks more like an execution trade than the first-line buy.

What would improve Amazon and Microsoft's setup

Confirms - Azure demand remains strong while cost pressure starts to moderate from 43% and 47%. - Microsoft keeps showing Enterprise Cloud revenue rose 30% while margin pressure eases as AI infrastructure scales. - Copilot demand starts to look more like a higher-return product layer than a margin drag.

Invalidates - Cost growth stays hotter than revenue growth. - Investors keep treating AI capex as the main story, not the payoff, as flagged in the broader earnings read-through where earnings growth is under pressure.

Alphabet has the best setup right now

Alphabet is the one I'd buy now.

Not because the other giants lack demand. They do. But after last week's earnings tape, the market is paying for proof that AI spending is turning into earnings, not just bigger infrastructure bills. Alphabet showed that conversion most clearly.

Why Alphabet gets preference

The cleanest tell is Cloud. Alphabet reported Cloud revenue of $20 billion, and its Cloud business operated at a 32.9% margin. Revenue says customers are buying. Margin says the model is profitable enough to matter now. In a market already questioning the costs of the race and the timeline for seeing a return, that edge matters more than another demand headline.

Alphabet also does not need to win the capex bragging rights. The broader build-out is still on pace for more than $700 billion in AI infrastructure spending this year. That means the next wave of winners will likely be the platforms that capture value fastest.

What would confirm or challenge the call

Confirms - Cloud remains near Cloud revenue of $20 billion scale with margins close to 32.9%. - Demand remains backed by the strongest near-term payoff from AI versus peers. - The market keeps rewarding firms that link AI spending to revenue instead of punishing all heavy spenders.

Invalidates - Cloud margins start sliding as AI investment becomes more capital-intensive. - Investors start treating the costs of the race as the main story again. - Alphabet starts trading more like a capex story than a monetization story.

My call stands: Alphabet has the best setup now. Buy the company showing the best return path, then monitor whether profitability keeps pace.