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Shares of Microsoft ( MSFT ) fell even after the company posted Q3 revenue of $82.89B, up 18% YoY, with AI revenue hitting an annualized run rate of $37B (+123% YoY) and Azure growing 39% ex-FX.
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Wall Street chastises Microsoft’s massive AI spending without a tangible return, while doubts about OpenAI’s viability and Anthropic’s competition raise questions about the profitability of Microsoft’s infrastructure investment.
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Shares of Microsoft (NASDAQ:MSFT) fell 5% in midday trading Thursday, changing hands near $402 after closing Wednesday at $424.46. The slide comes despite a clean beat for the fiscal third quarter after it closed on April 29.
Microsoft posted Q3 FY2026 revenue of $82.89 billion, up 18% year-on-year (YoY), with earnings per share (EPS) of $4.27 compared to consensus of $4.07. The AI business reached an annual run rate of $37 billion, up 123% YoY, while Azure grew by 39% in international trade, beating the road.
So why the selloff? Investors are fixating on one number: Microsoft’s $190 billion AI capital expenditure (CapEx) forecast for 2026, a 61% jump from 2025. The bill is real, the returns are unclear, and Wall Street is no longer in a position to fund moonshots without proof.
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A $190 Billion bombshell
Microsoft’s Q3 CapEx has already come in at $30.88 billion, up 84% YoY, and management has reaffirmed an aggressive trajectory for 2026. That contributes to industry-wide AI spending estimated at $725 billion by 2026, a number that questions the return on investment (ROI).
Adding to the concern, this week’s Wall Street Journal report flagging OpenAI’s shortfall in revenue and user growth targets has once again reignited bubble talk. Spear Invest CIO Vana Delevska also noted that Anthropic makes products that Microsoft should have made, raising the question of whether Microsoft’s spending is buying proprietary interest or simply compounding it.
Volume is another conundrum. Microsoft can’t fully meet the demand for AI infrastructure, and the decline in memory chip costs is pushing unit economics across the board.
Peers Divided
Meta Platforms (NASDAQ:META) had an even tougher session, with META stock down 9% after the company raised its full-year CapEx guidance to $125 billion to $145 billion. The Reddit discussion on Meta Platforms changed from bullish (72) in the previous print to neutral (48) this morning, driven by the viral series on capex and user growth missing estimates.
Alphabets (NASDAQ:GOOG) is the outlier. Google Cloud revenue grew 63% to $20.03 billion, and backlog nearly doubled to more than $460 billion. Investors make a clear distinction: when CapEx clearly translates into cloud capital, spending is rewarded, while implied ROI is penalized.
The Case of the Bull Versus the Bear
The bull case for MSFT stock starts with the math. Microsoft’s price-to-earnings (P/E) ratio has narrowed from 30x in Q2 2026 to a P/E ratio of 22x in Q3 2026, meaning that earnings exceed price. Remaining commercial operating commitments sit at $627 billion, nearly doubling YoY, reflecting demand visibility that few peers can match.
The bear case, on the other hand, has structure. Microsoft has been a Magnificent Seven laggard, down a whopping 20% over the past six months, and MSFT stock is now down 16% year-to-date (YTD). Anthropic entry, capacity constraints, and questions of need for OpenAI developed by the WSJ could keep many of Microsoft’s expansions on hold for several quarters.
Polymarket sellers set a dip price but not a capitulation. The probability that MSFT stock will close today remains at 99%, however the probability of finishing the week above $390 is still 90%. In the context of where AI infrastructure may emerge next, readers can review this coverage under the 2026 chip-and-EV winners.
What to Watch Next
Astute investors should watch Azure’s growth in the next two quarters, Copilot’s business acquisition metrics, and any comments about the timing of the capacity expansion. Reddit comments on Microsoft have already returned to bullish (60) on Thursday morning, suggesting that sales are not working as institutions are reducing.
The 190 billion question cannot be solved in one session. Microsoft could regain its bid if AI revenue continues to converge in the triple digits, or it could be swept away if Anthropic and OpenAI’s narratives tighten. Watch MSFT stock hold the $400 level until Friday’s close, where the Polymarket consensus range begins.
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