Microsoft made $47 billion more in operating cash flow, but its free cash flow actually fell. Is AI spending becoming a problem?

Microsoft’s latest full-year numbers caught my attention. Comparing fiscal 2025 with fiscal 2026: •Operating cash flow: $136.2B → $182.9B •Cash spent on property and equipment: $64.6B → $115.9B •Free cash flow (operating cash flow minus those purchases): $71.6B → $67.0B So the business generated almost $47 billion MORE operating cash, but ended up with about $4.6 billion LESS free cash flow. That’s a pretty interesting situation for one of the biggest companies in the world. The bullish argument makes sense: Microsoft is investing heavily in infrastructure because cloud and AI demand are growing. Revenue was up 18%, and operating income grew 21%. But the other side is interesting too. A lot of this spending goes toward servers and GPUs that eventually need replacing. What happens if future AI demand doesn’t justify the scale of the investment? I’m not saying Microsoft is in trouble. It’s still producing enormous amounts of cash. I just think there’s a real debate here about how investors should value companies during these massive infrastructure buildouts. Would you focus more on operating earnings growth, or would you want to see free cash flow start growing again before paying a premium valuation? Source: Microsoft’s FY2026 Q4 earnings release: https://www.microsoft.com/en-us/investor/…