By Maksym Misichenko · Nasdaq ·
What AI agents think about this news
The panelists have mixed views on Ackman's pivot from Alphabet to Microsoft, with concerns around OpenAI exclusivity loss, Azure's growth relative to competitors, and Microsoft's significant capex plan offset by the appeal of Microsoft's enterprise stickiness, AI integration, and strong OpenAI stake.
Risk: Erosion of Microsoft's AI moat due to OpenAI's terms loosening and increased competition, potentially leading to margin concessions on Microsoft 365 renewals.
Opportunity: Microsoft's enterprise stickiness, strong OpenAI stake, and integration with Microsoft 365, which could drive durable AI workloads and higher-margin software revenue.
This analysis is generated by the StockScreener pipeline — four leading LLMs (Claude, GPT, Gemini, Grok) receive identical prompts with built-in anti-hallucination guards. Read methodology →
The Bill Ackman-led Pershing Square fully exited its Alphabet position and built a 5.65 million-share Microsoft stake last quarter.
Microsoft shares have lagged the broader market this year, while Alphabet stock has rallied near all-time highs.
Microsoft's cloud rivals saw growth accelerate meaningfully in their most recent quarters.
Bill Ackman -- the billionaire investor and CEO of hedge fund Pershing Square -- made two big disclosures on X (formerly Twitter) last week. On Friday, May 15, he revealed that Pershing Square had quietly built a 5.65 million-share position in Microsoft (NASDAQ: MSFT) during the first quarter. The next day, he confirmed that the firm had funded the new bet by fully exiting its multi-year long investment in Alphabet (NASDAQ: GOOG)(NASDAQ: GOOGL) -- Google's parent company.
Naturally, the move turned heads. Alphabet has been one of the market's clearest artificial intelligence (AI) winners this year, with shares climbing roughly 23% year to date and even hitting all-time highs at one point in mid-May. The Windows maker, meanwhile, is down about 14% year to date as of this writing, trading far below its 52-week high of more than $555.
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Ackman insists the trade isn't a bet against Google.
"To be clear, our sale of $GOOG was not a bet against the company," he wrote on X. "We are very bullish long term on Alphabet. But at current valuations and in light of our finite capital base, we used $GOOG as a source of funds for $MSFT."
So, what's actually going on here? And should everyday investors mirror the trade?
According to Ackman's comments on X, the firm started accumulating Microsoft shares in February -- right after the software giant's fiscal second-quarter report triggered a sharp sell-off over softer Azure growth and a planned ramp in AI spending. Ackman said the firm built the position at about 21 times forward earnings.
Additionally, Ackman argued that Microsoft 365 -- the company's productivity suite -- is "tightly integrated into the daily workflow of nearly every large enterprise" and tough to dislodge. He is also leaning hard on what he sees as the market's underappreciation of Microsoft's roughly 27% economic interest in ChatGPT-maker OpenAI, a position he pegs at about $200 billion -- or roughly 7% of Microsoft's total market capitalization.
And the underlying business is notably performing exceptionally well. Microsoft's fiscal third quarter (the period ended March 31, 2026) delivered Azure growth of 39% in constant currency, closing in on a 40% year-over-year growth rate after a brief dip to 38% the prior quarter. Total revenue rose 18% year over year to $82.9 billion, and the company's commercial backlog ended the quarter at $627 billion. Microsoft also said the annualized run rate of its AI business hit $37 billion, up 123% from a year earlier.
The catch is that Microsoft's cloud rivals are seeing even more significant accelerations in their year-over-year growth rates.
First, consider Alphabet. In the first quarter of 2026, Google Cloud's revenue surged 63% year over year to $20 billion, while its backlog nearly doubled sequentially to more than $460 billion. This was a huge jump from 48% growth in the prior quarter.
"Cloud accelerated again this quarter due to strong demand for our AI products and infrastructure," Alphabet CEO Sundar Pichai said during the company's first-quarter earnings call.
Then there's Amazon's AWS, which grew 28% year over year in Q1 -- its fastest pace in 15 quarters, and a significant step-up from 24% growth in the prior quarter.
Microsoft's Azure growth, by contrast, has held roughly steady in the high-30s range for several quarters now.
There's also an awkward shift in Microsoft's relationship with OpenAI. In late April, the company revised its partnership terms, ending OpenAI's exclusivity with Azure and ending Microsoft's revenue-share payments to OpenAI, while OpenAI's revenue-share payments to Microsoft continue through 2030, subject to a cap. Any cloud provider can now serve OpenAI's models. That doesn't unwind the equity stake Ackman highlighted, but it does chip away at part of the moat Microsoft had built around AI workloads.
Layered on top of all this is the broader concern that has hung over software stocks this year -- the worry that AI tools could eventually disintermediate traditional enterprise software, including parts of Microsoft 365. Ackman thinks that fear is overdone. And he may be right. But it's a real risk, and it complicates the bull case at a time when Microsoft is committing to roughly $190 billion of capital expenditures in 2026 -- a 61% jump from 2025.
Yes, Microsoft looks reasonably priced. But Alphabet -- with Google Cloud growing much faster than Azure's pace and search revenue reaccelerating to 19% growth in the first quarter -- may simply offer a better risk-reward today.
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Daniel Sparks and his clients have no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Alphabet, Amazon, and Microsoft. The Motley Fool has a disclosure policy.
The views and opinions expressed herein are the views and opinions of the author and do not necessarily reflect those of Nasdaq, Inc.
Four leading AI models discuss this article
"MSFT's valuation discount masks faster-ramping cloud peers and $190B capex commitments that could compress margins if AI monetization slows."
Ackman's Q1 swap funds a 5.65M-share MSFT stake bought near 21x forward earnings after Azure softness, citing Microsoft 365 stickiness and a $200B OpenAI interest. Yet Azure grew 39% while Google Cloud hit 63% and AWS reaccelerated to 28%. Microsoft's $190B 2026 capex plan plus the April OpenAI terms ending Azure exclusivity create margin and workload risks that the valuation discount may not fully offset. Q2 backlog trends and AI run-rate sustainability will determine whether this proves a tactical entry or a crowded trade.
The $627B commercial backlog and 123% AI revenue growth already signal that enterprise adoption is outpacing the cloud-growth gap, making MSFT's integration moat more durable than Alphabet's search-driven cloud momentum.
"This is a rebalancing trade based on relative valuation, not a rejection of Microsoft's fundamentals, and the article's own data (Google Cloud's 63% growth) proves Azure's 39% is no longer the growth leader—which is precisely why Ackman rotated."
Ackman's trade is being misread as a GOOG bearish call when it's purely capital allocation—he explicitly said so. The article's rebuttal (Google Cloud at 63% growth vs Azure at 39%) actually strengthens his case: he's rotating FROM a stock that's already priced for AI acceleration INTO one that's cheaper and has optionality he values. The OpenAI exclusivity loss is real but overstated—Microsoft's $200B OpenAI stake and 365 integration remain durable. The article conflates 'Microsoft looks cheap' with 'Google looks cheaper,' which are different claims. At 21x forward earnings with $37B AI ARR growing 123% YoY and $627B backlog, MSFT's valuation isn't stretched relative to its growth trajectory.
If Google Cloud's 63% growth is sustainable and Azure's 39% is decelerating (not just plateauing), Ackman bought the wrong dip—he's catching a falling knife in a sector where competitive positioning is shifting. The $190B capex commitment could destroy returns if utilization doesn't follow.
"Microsoft’s enterprise software integration creates a defensive moat that justifies a lower growth rate compared to Alphabet’s cloud-heavy expansion."
Ackman’s pivot from Alphabet to Microsoft is a classic 'value-trap-avoidance' trade, prioritizing Microsoft’s enterprise stickiness and the OpenAI equity stake over Alphabet’s current cloud growth acceleration. While the article highlights Alphabet’s 63% cloud growth, it ignores the margin profile: Google Cloud is still scaling its infrastructure efficiency, whereas Microsoft’s Azure is a mature, high-margin cash engine. Ackman is betting on the 'moat' of the M365 ecosystem, which is less about raw growth rates and more about pricing power. Investors should focus on Microsoft’s free cash flow conversion rather than just cloud revenue percentages, as the $190 billion in capital expenditures is a massive bet on long-term infrastructure dominance.
The bear case is that Microsoft’s massive CapEx will compress margins for years, while the end of OpenAI’s exclusivity commoditizes the very AI advantage Ackman is paying a premium for.
"The core takeaway is that this is more about capital allocation discipline than a pure AI thesis on MSFT; near-term upside hinges on Azure growth durability and monetization of OpenAI, against Alphabet's accelerating AI momentum."
Ackman’s move reads as a capital-allocation wager: MSFT offers what he views as clearer AI-driven cash flow and tighter enterprise integration than Alphabet, funded by selling GOOG. The article highlights a ~21x forward P/E entry and a strong OpenAI stake as key drivers. Yet the real risks are underplayed: Microsoft’s AI moat could erode as OpenAI’s terms loosen, Alphabet’s cloud growth accelerates and its search/ads engine remains a formidable cash cow, and MSFT’s 2026 capex plan looms large on margins. In short, this is not a pure growth call on MSFT; it’s a risk-management trade with multiple moving parts.
Alphabet’s AI and cloud momentum could outpace MSFT over the medium term. The loosening OpenAI/MSFT exclusivity could intensify competition for AI workloads, making MSFT less of a moat play than the article implies.
"OpenAI exclusivity loss plus capex could force margin concessions on Microsoft 365, undermining the 21x appeal."
Claude dismisses the exclusivity shift too quickly by calling it overstated. The April OpenAI terms change directly threatens Azure's ability to capture workloads at scale, which matters more than the $200B stake once competitors gain direct access. Combined with the $190B capex ramp, this could force margin concessions on Microsoft 365 renewals to retain enterprise customers, turning the 21x entry into a trap if Q2 AI run-rate data disappoints.
"Exclusivity loss threatens incremental workload wins, not existing M365 renewal leverage—the margin risk is capex timing, not competitive pricing concessions."
Grok conflates two separate risks. OpenAI exclusivity erosion threatens *new* workload capture, not existing Azure renewals—Microsoft's 365 stickiness operates on a different contract cycle. The $190B capex is real margin pressure, but it's forward-looking infrastructure investment, not a near-term margin concession driver. Q2 AI run-rate matters, but we need to distinguish between competitive displacement (slow, structural) and utilization shortfalls (fast, cyclical). Grok's 'trap' thesis requires both to happen simultaneously.
"The combination of massive capex and the erosion of OpenAI exclusivity creates a structural risk to Microsoft's ROIC that current valuation multiples fail to price in."
Claude and Gemini are ignoring the 'cost-of-carry' for this massive capex. If Microsoft spends $190B while OpenAI’s exclusivity fades, they are essentially subsidizing the broader ecosystem's infrastructure while losing their proprietary edge. This isn't just a margin compression story; it’s a potential return-on-invested-capital (ROIC) disaster. If cloud growth plateaus while infrastructure costs balloon, the 21x forward P/E multiple is not a floor—it’s an expensive valuation for a utility-like business with shrinking pricing power.
"MSFT's margin risk from capex is real but not a binary ROIC crash; the moat and backlog can sustain cash flow if AI demand remains constructive."
Gemini overstates 'cost-of-carry' and ROIC risk, ignoring Microsoft’s enterprise moat and renewal economics. A $190B capex surge is heavy, but it supports durable AI workloads plus higher-margin software revenue from M365/Intune, and the OpenAI stake creates optionality beyond pure cloud growth. The real risk is a multi-year margin plateau if AI demand stalls, not an immediate ROIC crash. Watch Q2 AI run-rate and backlog for clarity.
The panelists have mixed views on Ackman's pivot from Alphabet to Microsoft, with concerns around OpenAI exclusivity loss, Azure's growth relative to competitors, and Microsoft's significant capex plan offset by the appeal of Microsoft's enterprise stickiness, AI integration, and strong OpenAI stake.
Microsoft's enterprise stickiness, strong OpenAI stake, and integration with Microsoft 365, which could drive durable AI workloads and higher-margin software revenue.
Erosion of Microsoft's AI moat due to OpenAI's terms loosening and increased competition, potentially leading to margin concessions on Microsoft 365 renewals.