Microsoft's AI business has reached a $37 billion（約5.9兆円） annual run rate with 123% growth, positioning the company's Intelligent Cloud segment as a major driver of future earnings. A conservative three-year financial model projects the stock could climb 49% to $547.83 if revenue compounds at 15.2% annually and multiples remain stable. The upside depends on sustaining that growth rate while managing a planned $190 billion（約30兆円） capital investment in 2026, which creates uncertainty about near-term returns despite strong long-term potential.
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Microsoft's AI business has reached a $37 billion（約5.9兆円） annual run rate, growing at 123%, and now forms a major part of the company's Intelligent Cloud segment, which grew 30% to $34.7 billion（約5.6兆円） quarterly revenue. A conservative three-year scenario projects the stock could reach $547.83, roughly 49% above current levels, assuming revenue compounds at 15.2% annually and the price-to-earnings multiple holds steady at 21.9x.
Why it matters
The company's shift toward usage-based pricing on top of existing seat adoption—Microsoft 365 Copilot seat additions are increasing 250% year-over-year—could unlock new revenue streams beyond current models. However, management expects to invest roughly $190 billion（約30兆円） in capital expenditures in calendar year 2026 alone, creating near-term uncertainty about when these investments will generate returns.
What to watch
The compounding case depends on revenue growth staying near 15.2% over three years. The projected net margin is expected to ease from 39.3% to 38.3%, and any drift below the longer-run average would make the earnings growth math harder to achieve.
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