The reason that AI semiconductors were deep in the green is because Microsoft announced strong QoQ increase to its capex for AI infrastructure. Microsoft’s capex increased 36% sequentially and 78% YoY to $19 billion in Q4. Capex was $14 billion last quarter, where it grew 22% sequentially.
Full year 2024 capex was up 75% YoY to $55.7 billion, yet this quarter’s run rate suggests we could see up to $80 billion in capex in FY2025. Notably, management is guiding for a further YoY increase in capex in FY’25. We’ve covered the importance of Big Tech’s capex for our AI stocks in an analysis here.an analysis here.
With Azure AI forming a larger percentage of Azure’s growth and Azure customers growing 60% YoY, there seems to be no slowdown in sight for capex growth, a positive for the AI data center stocks in our portfolio which saw strong rallies following the report.
Copilot is also showing very strong growth, with Copilot accounting for over 40% of GitHub’s revenue growth this year and is already a larger business than all of GitHub when Microsoft acquired it, with Microsoft being optimistic about seeing similar adoption trends in Copilot for Microsoft 365.
This quarter, Microsoft beat on both the top and bottom lines with margins above guided levels. The stock was initially brought down by a headline miss as Azure growth of 29% and 30% YoY on a CC basis came in at the lower-end of its guidance range due to some softness in Europe during the last month of the quarter and continues to be impacted by capacity constraints.
However, while management guided for a slight deceleration in Azure growth in Q1’25, with growth of 28% to 29% in CC (vs 30% this quarter), they expect an acceleration in H2’25 as their capital investments increase AI capacity.
Microsoft Fiscal Q4 Financials:
Revenue and EPS:
Fiscal Q4 revenue grew by 15% and 16% in CC YoY to $64.7 billion. It beat expectations by $260 million, driven by a 19% increase in Intelligent Cloud revenue and the Activision acquisition that contributed 3% to revenue growth. Azure growth was 29% (30% in constant currency), which came in at the lower end of their guidance range but was consistent with Q3 when adjusting for the leap year. Azure growth included 8 points from AI services, up from 7 points last quarter, and demand continues to remain higher than available capacity.
The company guided for Azure growth of 28% to 29% percent in constant currency next quarter. Management expects Q4 consumption trends to persist through the first half of FY’25 with an acceleration in the second half as AI capacity increases.

- For next quarter, management guided to $64.3 billion at the midpoint, which is below analyst estimates of $65.30 billion
- GAAP EPS of $2.95 beat estimates by $0.02, representing YoY growth of 10%. Non-GAAP EPS of $2.95 beat estimates by $0.01.

Segment Revenue:
- Productivity and Business revenue was $20.3 billion, up 11% YoY, driven by 13% growth in Office 365 Commercial. Growth came in 140 bps ahead of the midpoint of the guided range.
- Intelligent Cloud revenue was $28.5B, up 19% YoY, driven by Azure and other cloud services revenue growth of 29%. Growth came in in-line with the midpoint of the guided range.
- More Personal Computing revenue was $15.9 billion, up 14% YoY. Windows revenue increased 7% with OEM revenue growth of 4% and Commercial products and cloud services revenue growth of 11%, while devices revenue decreased (11%). Xbox content and services revenue increased 61% YoY driven by 58% of net impact from the Activision acquisition. Growth came in 320 bps ahead of the midpoint of the guided range.
Guidance on Segment Revenue:
- Productivity and Business revenue guided to $20.45 billion at midpoint for growth of 9.2% to 10.8% YoY. This would be a QoQ deceleration of 100 bps in growth rate, at the midpoint.
- Intelligent Cloud revenue was guided to $28.75 billion at midpoint for growth of 17.9% to 19.1% YoY. This is a deceleration of 50 bps in growth rate, at the midpoint.
- More Personal Computing revenue was guided to $15.1 billion at midpoint for growth of 9% to 12% YoY. This is a deceleration of 350 bps in growth rate, at the midpoint.
Margins:
Margins topped management’s guide in gross margin, operating margin and net margin but fell across the board YoY. However, excluding the impact of an accounting estimate for useful lives, gross and operating margins would have been slightly up YoY. Operating margin for Q4 was 43.1%, 80 bps above guidance, and a 10 bps decrease YoY, helped by operating leverage and offset by the Activision acquisition.
Microsoft’s More Personal Computing segment experienced the largest QoQ operating margin decline, down 639 bp QoQ to 30.9% due to impact from the Activision acquisition.
Full year operating margins were up 287 bps, ahead of management’s guidance for 100 to 200 bps. However, management continues to expect operating margins to be down 1% in FY2025 due to increased expenses related to cloud and AI.

- Gross margin of 69.6% was down from 70.1% in the year ago quarter. The guide for next quarter is 68.8%.
- Operating margin was 43.1%, down from 43.2% in the year-ago quarter. Operating margin is guided for 45.1% next quarter.
- Net margin was 34%, down from 35.74% in the year-ago quarter. Net margin is guided to improve to 35.7% next quarter.
- Productivity and Business operating margin was 49.9%, down 191 bp QoQ but expanding 42 bp YoY.
- Intelligent Cloud operating margin was 45.09%, down 175 bp QoQ but expanding 120 bp YoY
- More Personal Computing operating margin was 30.9%, down 639 bp QoQ due to impact from the Activision acquisition
Cash and Debt:
Operating cash flow was $37.19 billion, up 29% YoY driven by strong cloud billings and collections.
Free cash flow was $23.3 billion, up 18% YoY reflecting higher capital expenditures to support cloud and AI offerings.
Microsoft returned $9.78 billion to shareholders in the form of dividends and share repurchases.
For Q4 2024, the company has $51.63 billion total debt, with $75.54 billion in cash and short-term investments compared to $65.44 billion in total debt and $80.02 billion in cash and short-term investments in the previous quarter. The company repaid $13.1 billion of debt in the recent quarter.
Key Metrics:
Bookings increased 17% YoY and 19% on a constant currency basis. This was significantly above expectations and driven by growth in the number of $10M+ and $100M+ contracts for Azure and Microsoft 365. This compares to 29% growth (31% on CC basis) in Bookings last quarter and compares to a -2% decrease (-1% on CC basis) in Bookings in the year ago quarter.
Commercial RPO grew by 20% YoY to $269 billion. This compares to 20% growth last quarter and 19% YoY growth in the year ago quarter.
Azure AI customers totaled more than 60,000, implying customer growth rate of nearly 60% YoY and up over 13% vs Q2’24 with average customer spend continuing to grow. The number of Azure AI customers using data and analytics tools also grew nearly 50% YoY.
The next-gen analytics platform, Microsoft Fabric, has over 14,000 paid customers, up 20% QoQ.
Azure Arc, a tool that allows organizations to manage resources not hosted on Azure, has 36,000 customers, up 90% YoY and 9% QoQ.
GitHub now has an annual revenue run rate of $2B with GitHub Copilot accounting for over 40% of GitHub’s revenue growth this year and is already a larger business by itself than all of GitHub at acquisition. GitHub Copilot has been adopted by over 77,000 companies, up 180% YoY.
Power Platform, a collection of low-code development tools, saw MAUs rise 40% YoY to 48 million. 480,000 organizations have also used the AI-powered capabilities in Power Platform, up 45% QoQ.
In its second full quarter of availability, Copilot for Microsoft 365 continues to gain traction as the number of people using Copilot daily at work nearly doubled QoQ. Copilot customers increased 60% QoQ and the number of customers with over 10,000 seats more than doubled QoQ. Copilot Studio, a low-code tool for creating and maintaining copilots, saw a 70% QoQ increase in organizations using it to 50,000.
Earnings Call:
Azure AI Growth as a Leading Indicator of Capex Investment:
Microsoft stated capex was $19 billion this quarter compared to $7.8 billion in the year ago quarter, up 77.6% YoY. This compares to $14 billion in the previous quarter, up 35.7% sequentially. For FY’24, capex was $55.7B, up 74.6% YoY. Furthermore, Microsoft is guiding for a YoY increase in capex in FY’25.
Given this significant spending, analysts are questioning whether monetization is going to match the level of investment.
Question:
Keith Weiss (Analyst)
“Is CapEx still an appropriate leading indicator for cloud growth? Or does the shift in gross margin profile change that equation? Or said another way, maybe can you give us a little bit more help in understanding the timing between the CapEx investments and the yield on those investments?”
Answer:
Satya and Amy (Management)
Satya noted “So I would say – and obviously, the Azure AI growth, that's the first place we look at. That then drives bulk of the CapEx spend, basically, that's the demand signal because you got to remember, even in the capital spend, there is land and there is data center build, but 60-plus percent is the kit, that only will be bought for inferencing and everything else if there is demand signal, right?”the Azure AI growth, that's the first place we look at. That then drives bulk of the CapEx spend, basically, that's the demand signal because you got to remember, even in the capital spend, there is land and there is data center build, but 60-plus percent is the kit, that only will be bought for inferencing and everything else if there is demand signal, right?”
Amy further noted “[…] roughly half of FY2024's total capital expense as well as half of Q4's expense, it's really on land and build and finance leases, and those things really will be monetized over 15 years and beyond… they're incredibly flexible because we've built a consistent architecture”.half of FY2024's total capital expense as well as half of Q4's expense, it's really on land and build and finance leases, and those things really will be monetized over 15 years and beyond… they're incredibly flexible because we've built a consistent architecture”.
Given the flexibility of the underlying infrastructure that comprises half of current capex spend, Microsoft feels comfortable investing in land and data centers ahead of demand though only outfits them with infrastructure kits based on observed customer demand with the KPI being Azure AI growth.
In a further answer, management noted that they can adjust capex investment with little impact on revenue growth.
Amy noted “the pace at which we fill those builds with CPUs or GPUs will be demand-driven. And so if we see differences in demand signal, we can throttle that investment on the CPU side,…the same thing on the GPU side. And so you're right that you could see relatively consistent revenue patterns and yet see these inconsistencies and capital spend quarter-to-quarter.”if we see differences in demand signal, we can throttle that investment on the CPU side,…the same thing on the GPU side. And so you're right that you could see relatively consistent revenue patterns and yet see these inconsistencies and capital spend quarter-to-quarter.”
Factors Driving Soft Q4 Azure Growth Expected to Persist
Analysts noted that Azure growth of 30% YoY came in at the lower end of their provided range of 30% to 31%, which was driven by persistent capacity constraints and modest softness in Europe. They asked management to elaborate on that and how they factored that into Q1’25 guidance.
Answer:
Amy (Management)
“The distinguishing between being at the higher end or at the lower end, really was some softness we saw in a few European geos on non-AI consumption really made the difference in that number. And we've assumed that going forward into H1 inclusive of my guide 28% to 29% going forward. And then let me separate which was your larger point, which is what are the other factors you see ongoing. Number one, you're right, capacity constraints, particularly on AI and Azure will remain in Q4 and will remain in H1.”
Broader Applications of Copilot
With GitHub Copilot already accounting for 40% of GitHub’s revenue growth this year and pushing it to an annual revenue run rate of $2 billion, analysts are questioning if there is potential for it to drive similar growth for non-developers too.
Question:
Mark Murphy (Analyst)
“With a couple of quarters of Copilot for M365 availability under your belt now, how are you assessing the capability of Copilots to replicate the productivity gains that they've created for developers, which seem to be very high and to do something similar for the broader population of knowledge workers?”
Answer:
Satya (Management)
“So we think of this as really a new design system for knowledge and frontline work to drive productivity, which would be very akin to what has happened in software engineering. So when you think about marketing or finance or sales or customer service, we will effectively replicate what you just said, which is the type of productivity we've seen in developers, will come to all of these functions as they think about their work, workflow and workout effect, all being driven by Copilots.”
Management noted that they aim to extend the productivity benefits seen with GitHub Copilot to a broader population of knowledge workers through M365 Copilot.
Valuation
Microsoft could see about 10% to 15% upside from here, at which time, it will be trading at a forward PE where the stock has met resistance two times prior.

The same is true on the sales valuation where the stock is trading at a forward PS of 11 to where a PS of 12 or 13 mark its absolute maximum valuation. There’s some room left but not a lot to work with.
Conclusion
Microsoft’s report shows continued growth in all the right areas and supports our large allocation to AI data center stocks. Ultimately, we closed Microsoft following our July quarterly webinar where we expressed valuation concerns. Pausing Microsoft in our I/O Fund portfolio is likely to be short-lived as we see the company as a clear winner in AI, with AI driving an increasing amount of Azure’s growth and with Azure continuing to be capacity constrained. We’ve also been quite vocal that enterprise is where the growth in AI will come from, and Microsoft is unique among the FAANGs for its leading position with enterprise customers. We continue to see Microsoft as a quality company, yet we are rolling the dice to see if we can get a lower entry.
Richard Chu, Equity Analyst at I/O Fund, contributed to this analysis
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