Key Highlights

  • Microsoft's fiscal fourth-quarter Revenue reached $90.0bn, up 18%, with Microsoft Cloud revenue of $59.3bn and Azure growth of 43%, while full-year Capital spending hit $115.9bn.
  • Amazon's second-quarter net sales rose 20% to $200.6bn, with AWS growing 37% to $42.2bn and total Operating Income up 43% to $27.5bn.
  • Alphabet's second-quarter revenue climbed 24% to $119.8bn, with Google Cloud revenue up 82% to $24.8bn, alongside quarterly Capital Expenditure of $44.9bn.

The amount the largest technology companies are spending to build cloud and artificial-intelligence capacity has become one of the defining financial stories of 2026, and because Microsoft Corporation (NASDAQ:MSFT), Amazon.com, Inc. (NASDAQ:AMZN) and Alphabet Inc. (NASDAQ:GOOGL) rank among the heaviest weights in the S&P 500, it is increasingly the index's story too. Their capital budgets now run into the hundreds of billions of US dollars a year, funding data centres, custom chips and power supply, and independent tallies put the big cloud builders' combined 2026 spending well beyond half a trillion dollars.

Whether that outlay eventually earns an adequate return is the central question hanging over the market. The three groups reached that scale by different commercial routes, and their most recent quarterly results, all covering periods ended 30 June 2026, spell out the trade-offs.

Microsoft Corporation (NASDAQ:MSFT): Azure Past a Milestone

Microsoft, the Nasdaq-listed software and cloud group, reported fiscal fourth-quarter revenue for the period ended 30 June 2026 of $90.0bn, up 18%, with Microsoft Cloud revenue of $59.3bn. Azure and other cloud services grew 43%, and chief executive Satya Nadella said Azure revenue had surpassed $100bn for the first time on an annual basis, while Microsoft 365 Copilot passed 30 million paid seats.

Net income reached $35.8bn, up 31%. Capital spending was about $35.8bn in the quarter and $115.9bn across the full fiscal year, roughly double the prior year's quarterly pace, an Investment scale that is now compressing free Cash Flow even as revenue climbs.

Amazon.com, Inc. (NASDAQ:AMZN): AWS Reaccelerates

Amazon, the Nasdaq-listed E-commerce and cloud company, posted second-quarter 2026 net sales of $200.6bn, up 20%. Amazon Web Services grew 37% to $42.2bn, an annualised run rate near $169bn, and delivered segment operating income of $16.6bn. Chief executive Andy Jassy described AWS as booming and noted that its AI and custom-chip businesses, built partly around Amazon's own Trainium silicon, had each passed a $25bn annual run rate.

Total operating income rose 43% to $27.5bn. Reported Net Income was flattered by a large gain on Amazon's stake in the AI developer Anthropic, underscoring how intertwined the cloud giants have become with the start-ups they simultaneously fund, Supply and host, and how such gains can distort a single quarter's headline profit.

Alphabet Inc. (NASDAQ:GOOGL): Cloud Surges, Capex Rises

Alphabet, Google's Nasdaq-listed parent, reported second-quarter 2026 revenue of $119.8bn, up 24%, with Google Cloud revenue climbing 82% to $24.8bn and segment operating income of $8.8bn. Capital expenditure reached $44.9bn in the quarter alone. Chief executive Sundar Pichai pointed to rapid uptake of the company's Gemini models as evidence its AI investments were redefining what's possible, but the company also lifted its 2026 spending plans, and its shares fell after the report as investors weighed the rising bill against still-uncertain returns.

Cloud growth is fast, yet it starts from a smaller base than the group's Advertising engine, so the capital intensity weighs more heavily on near-term margins than at Microsoft or Amazon.

Half a Trillion Dollars and Counting

Independent estimates put the combined 2026 capital spending of the big cloud builders well beyond half a trillion US dollars. The businesses differ in character: Microsoft sells software and Azure to enterprises, Amazon pairs cloud with retail and advertising, and Alphabet couples cloud with search advertising.

Investors should watch whether cloud revenue growth keeps pace with the Depreciation flowing from all that new equipment, whether AI Demand justifies the buildout, and how much reported profit rests on paper gains from AI investments rather than operations. The spending is a dated, reported fact; the eventual payback remains a management expectation rather than a proven outcome.