Microsoft's $37.5B AI spending triggers investor alarm despite strong earnings and OpenAI gains

Reviewed byNidhi Govil

18 Sources

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Microsoft reported solid quarterly earnings with $81.3 billion in revenue and $38.3 billion in net income, including a $7.6 billion boost from OpenAI. But the stock dropped 6-7% as investors questioned the company's massive AI infrastructure spending and heavy reliance on OpenAI, which accounts for 45% of Microsoft's $625 billion backlog. Wall Street demands clearer evidence of return on investment.

Microsoft AI Spending Reaches Record Levels Amid Growing Scrutiny

Microsoft delivered strong second-quarter results with $81.3 billion in revenue, up 17% year-over-year, and net income of $38.3 billion, which included a $7.6 billion gain from its investment in OpenAI

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. Despite these impressive figures, the stock fell 6-7% in after-hours trading as investor concerns mounted over the company's aggressive AI spending and its financial exposure to AI startups

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. The company's capital expenditures hit $37.5 billion for the quarter, exceeding analyst expectations of $36.2 billion and marking a 66% increase from the previous year

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. Roughly two-thirds of this AI infrastructure spending went toward GPUs and CPUs—assets Microsoft classifies as "short-lived" with just six years to generate profits

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Source: Market Screener

Source: Market Screener

Dependency on OpenAI Raises Red Flags on Wall Street

The most striking revelation came from Microsoft's disclosure that 45% of its $625 billion backlog stems directly from OpenAI commitments

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. As part of OpenAI's restructuring into a public benefit corporation last fall, the AI lab agreed to purchase $250 billion in Azure cloud infrastructure services from Microsoft

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. While CFO Amy Hood attempted to reassure analysts that the remaining 55%—roughly $350 billion—represents a diversified portfolio across industries and geographies, the concentration risk remains substantial

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. Anthropic also contributed to the backlog growth after committing to $30 billion of Azure compute capacity in November, with Microsoft investing $5 billion back into the AI startup

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. As one analyst noted, roughly half of Microsoft's backlog is now tied to AI startups that haven't yet demonstrated profitability

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Source: TechCrunch

Source: TechCrunch

Satya Nadella Defends Microsoft's Copilot AI Adoption

CEO Satya Nadella spent considerable time during the earnings call defending Microsoft's Copilot AI usage, offering what some characterized as "squishy" metrics

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. He reported that daily users of consumer Copilot products grew "nearly 3x year over year" but didn't specify actual user numbers

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. GitHub Copilot showed more concrete progress with 4.7 million paid subscribers, up 75% year-over-year, while Microsoft 365 Copilot reached 15 million paid seats out of a total base of 450 million paid seats

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. Dragon Copilot, Microsoft's healthcare AI agent, is now available to 100,000 medical providers and documented 21 million patient encounters during the quarter, up three-fold year-over-year

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Source: Digit

Source: Digit

Return on Investment Questions Dominate Analyst Discussions

The core tension revolves around whether Microsoft's massive capital expenditures will translate into tangible revenue returns. Keith Weiss of Morgan Stanley articulated the central worry: "One of the core issues that is weighing on investors is capex is growing faster than we expected, and maybe Azure is growing a little bit slower than we expected" . Azure cloud infrastructure revenue grew 39% this quarter, down slightly from 40% growth in the previous quarter

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. Hood attributed this partly to Microsoft allocating GPUs and cloud capacity to internal teams, insisting that customer demand still outpaces supply

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. She also emphasized that "the majority of the capital that we're spending today and a lot of the GPUs that we're buying are already contracted for most of their useful life"

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Microsoft's Early AI Advantage Shows Signs of Erosion

The competitive landscape has shifted dramatically since Microsoft's early bet on OpenAI positioned the company at the forefront of the AI boom in late 2022 . Google's Gemini model now leads in consumer applications, while Anthropic's Cowork agent has reportedly impressed even Microsoft's own engineers with its ability to control Excel and PowerPoint . OpenAI has diversified its infrastructure partnerships beyond Microsoft to include Oracle, Google, and Amazon . Microsoft shares have fallen 11% since their peak last October and remained flat through early 2026 . As concerns over an AI bubble intensify, the market increasingly demands proof that AI investments will deliver profitability rather than just ambitious commitments

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