The latest earnings season has provided a definitive answer to the question of who is winning the AI cloud race: all three major hyperscalers are strengthening their positions, albeit through different strategies and metrics. Alphabet's Google Cloud posted an 82% year-over-year revenue surge, Microsoft's Azure grew 43%, and Amazon Web Services (AWS) expanded 37%—each demonstrating robust demand for AI-driven cloud services.
Google Cloud: The growth leader
Alphabet kicked off the earnings cycle with a standout performance. Google Cloud revenue reached $24.8 billion in the quarter ended June, far exceeding analysts' expectations of roughly 64% growth, according to LSEG. This marks the fastest expansion among the three major cloud providers, reinforcing the narrative that Google is steadily gaining market share.
The demand has become so intense that Alphabet executives said they would rent additional data-center capacity from third parties to serve customers, even though this is expected to pressure margins. Wall Street responded positively, with more than 20 brokerages raising their price targets. The median target climbed to $430, nearly 26% above the stock's last close, with Citizens issuing the highest at $515 and TD Cowen remaining cautious at $240.
Despite the blowout numbers, Alphabet's shares initially fell as investors focused on sharply higher capital expenditure guidance and the company's first negative quarterly free cash flow in years. This reaction underscores a growing investor scrutiny: rapid revenue growth must be matched by evidence that AI spending remains financially sustainable.
Microsoft Azure: Resilience and acceleration
If Google's results raised questions about Microsoft's competitive position, Azure's earnings provided a strong rebuttal. Azure revenue rose 43% in the fiscal fourth quarter, ahead of the consensus estimate of about 40%, according to Visible Alpha. The Intelligent Cloud segment generated $39.31 billion, up 31.6% annually and beating StreetAccount estimates. Azure's growth accelerated from 40% in the prior quarter, and annual Azure revenue crossed the $100 billion milestone for the first time.
Microsoft also reassured investors by keeping its long-term capital expenditure outlook broadly unchanged while reiterating that it expects to remain free cash flow positive during fiscal 2027. This disciplined approach, combined with accelerating growth, convinced the market that Microsoft's AI investments are translating into commercially meaningful demand. The stock surged about 15% after the results, lifting semiconductor and AI infrastructure suppliers along with it.
AWS: The profit engine at scale
Amazon completed the picture with AWS reporting 37% revenue growth to $42.2 billion in the second quarter, comfortably beating expectations of just over 31% growth, according to LSEG. This was the fastest growth in 18 quarters, which Morningstar described as "astounding" given AWS's enormous scale.
CEO Andy Jassy highlighted that AWS's AI and chips businesses each eclipsed run rates of more than $25 billion. He also noted that AWS is now a $169 billion annualized revenue run rate business, which would place it 24th on the Fortune 500 if it were a standalone company. The contract backlog surged to $496 billion from $364 billion in the previous quarter, and Jassy acknowledged that demand remains so strong that the company still lacks enough computing capacity despite significantly increasing capital expenditure.
The strong performance prompted at least five brokerages to raise their price targets, and the stock jumped 10% in after-hours trading. However, Amazon's $220 billion capital expenditure plan for 2025 raised some cash-flow concerns, as detailed in our analysis of Amazon's capex plan.
AI investment validation
Beyond the individual numbers, the cloud results answered a larger question: massive AI investments are generating enough demand to justify the spending. Each hyperscaler is seeing accelerating growth, and customers are increasingly choosing Google Cloud, but not at the expense of AWS or Azure. The market's reaction to Microsoft's earnings, which sparked a tech rally, further validated this optimism—see how AMD and Intel surged on Azure's results.
Investors are now watching whether these growth rates can be sustained as capital expenditures continue to rise. The divergence in stock reactions—Alphabet's initial dip versus Microsoft's surge—highlights the importance of balancing growth with financial discipline. As the AI cloud race evolves, each player is carving out a distinct advantage: Google's rapid growth, Microsoft's resilience, and AWS's scale and profitability.
For a broader market perspective, the positive earnings from these tech giants have also lifted broader indices, as seen in Dow futures climbing on Amazon's cloud strength. The AI cloud race is far from over, but this earnings season has shown that all three contenders are winning in their own right.
This article is for informational purposes only and does not constitute financial advice.
