Can Microsoft Stock Keep Earning Like This?

Microsoft (MSFT) is coming off the most profitable stretch it has posted in years, and its stock trades at $493.95, about 92% of its 52-week high. Nothing here is broken. The risk is quieter than that. The spending that came with those margins is still climbing, and the company has already told shareholders what it expects that to do to fiscal 2027.

Microsoft Is Making More Money Than It Has In Years

Net margin over the trailing twelve months is 40.3%, the highest in at least five years and well above a 36.8% three-year average. Operating margin runs 46.8% against a 45.3% three-year average, near the top of its multi-year range. Revenue of $331.8 billion grew 17.8% year over year, so none of this came from a shrinking business.

Margins at a peak rarely stay there. This peak arrives with a specific and growing bill, and that bill is the Azure build-out.

But Microsoft Has To Keep Spending To Grow Azure

Azure revenue grew 43% in fiscal Q4 2026, and management says customer demand still exceeds available capacity. Company-wide, the build-out took $41 billion of capital expenditure in that one quarter (including equipment acquired under leases), roughly two-thirds of it on what management calls short-lived assets, primarily CPUs and GPUs. Against $55.4 billion in cash from operations, cash actually paid for property and equipment was $35.8 billion, yielding $19.6 billion in free cash flow.

The bill is already visible in the margin. The company’s gross margin was 67% in fiscal Q4 2026, down year over year, and management attributes the decline to the sales mix shift toward Azure and the AI infrastructure spending behind it, offset only partly by efficiency gains. Capital expenditure is guided higher again in fiscal 2027.

So What Would It Cost You If Margins Slip?

Management guides fiscal 2027 operating margins down less than one point, while still expecting double-digit revenue and operating income growth. Operating income can keep rising while the margin falls. It is the margin the price is leaning on. On price-to-sales the stock trades at 11.1, about 71% of the way up its own 10-year range.

That guide already carries a change extending the assumed useful life of data centers and office buildings from 15 to 25 years. While management expects only a minimal cushion to fiscal 2027 operating income, the greater impact shifts data-center leases out of reported capital expenditure—meaning headline capex growth appears somewhat softer than the actual build-out pace.

The primary downside risk is valuation compression rather than an operational breakdown. The stock returned 20.2% over the past three months to get back near its high, but only 0.6% over the past twelve months, against 19.3% for the S&P 500 over that same window. That twelve-month gap against the index is the cost so far. The stock’s worst peak-to-trough fall inside that year was 34.5%, suggesting that even modest multiple contraction could occur without an operational miss.

The line to watch is the Microsoft Cloud gross margin percentage, which ran 65% in fiscal Q4 2026 and was down year over year, and which management guides to be roughly stable quarter over quarter. If it keeps sliding while capital expenditure grows, the margin peak is already past. Implied volatility sits near the 44th percentile of its 52-week range, indicating that the options market has not yet priced in elevated downside risk. Now, our Option Implied Volatility screen shows what is priced.

Would You Even Notice This One Coming?

Probably not on any particular morning. That is what makes a quiet risk like this one awkward to hold alone, and it is the problem our High Quality Portfolio is built to answer. The Trefis High Quality (HQ) Portfolio has a track record of outpacing the three major indices.