Is Google Cloud Officially Driving the Train?

Let’s be honest. When a stock you own doubles, you feel like a genius. When it’s a behemoth like Alphabet (GOOGL), and it returns +105% in a year, you might wonder if you’ve misread the chart. You haven’t. Over the past 12 months, while the S&P 500 gained a respectable 21%, Alphabet left it in the dust. It also trounced its mega-cap peers; Microsoft (MSFT) stock returned -21.9%, and Meta Platforms (META) returned -16.2% over the same period.

So what on earth happened? The answer isn’t the one you’d expect. It’s a story about the division that for years looked like an expensive, third-place hobby.

Yes, the core Search business is humming. Its revenue grew 19% in the latest quarter, and the company says user queries are at an all-time high. That’s a fantastic result for a business of its scale. But that’s not the headline. The real story, the one that re-rated the entire company, is what happened in the cloud. For the first time ever, management confirmed that its “enterprise AI solutions have become our primary growth driver for cloud.” The side project just took the wheel.

The numbers are startling. Google Cloud revenue accelerated, growing 63% to exceed $20 billion in a single quarter. Even more surprising was the profitability. A year ago, the segment’s operating margin was 17.8%. This year, it hit 32.9%. What made the growth so remarkable was its profitability, powered by a nearly 800% year-over-year surge in revenue from products built on its advanced artificial intelligence models. The market has spent a decade wondering if Alphabet could build a second meaningful business. It turns out, it just did.

This might be the single most important figure. Google Cloud’s backlog of contracted future revenue nearly doubled from the prior quarter to $462 billion. Think about that. This isn’t wishful thinking; it’s a mountain of committed sales from customers locking in capacity and AI services. It signals that the rapid demand isn’t a fluke. It’s a durable trend that the market can now see and value, stretching out for years. We’ve looked before at what it would take to get the stock moving, and this appears to be it.

But this torrent of demand creates its own high-class problem. Management admits they are “compute constrained in the near term,” and that cloud revenue would have been even higher if they could have met all the demand. To catch up, they plan for 2027 capital expenditures to “significantly increase” over 2026’s already large $180 billion to $190 billion budget.

Alphabet proved it can build a world-class second engine; now, can it actually afford the fuel?

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