Microsoft (MSFT) Stock May Be 33% Undervalued Following $25 Billion AI Bond Raise

Microsoft sits at a record-rich AI spending cycle. The real question for anyone looking at the stock today is whether its current share price is fully supported by the cash flows the business can generate over time.

• Over the past 5 years, Microsoft has returned 64.5%, which puts a lot of long term optimism into the price and makes the link between that gain and the company’s cash generation worth examining more closely.
• Heavy investment in AI infrastructure, balanced by sizeable bond funding and ongoing positive free cash flow, can reshape the timing and durability of Microsoft’s future cash streams that underpin any Discounted Cash Flow (DCF) style intrinsic value estimate.
• If you'd rather focus on earnings, this one's for you. See what Microsoft's 27.6x P/E says about the price.

The issue now is whether Microsoft’s current market value is appropriately grounded in the cash flows that its AI driven cloud and software engine can realistically deliver.

Alongside Microsoft, you can pressure test this whole AI cash flow story by lining it up against other 53 AI infrastructure stocks.

Is Microsoft Still Cheap on Cash Flow?

The Discounted Cash Flow (DCF) model here values Microsoft on the cash it can return to shareholders over time. On this approach, the engine of the calculation is last twelve month free cash flow of about $97.3b, followed by a second stage that assumes free cash flow keeps growing rather than tailing off. That shift from already very large current cash generation to even higher projected out years is what pushes the DCF outcome substantially above today’s traded level of $530.61.

What really matters for you is how assertive those future cash assumptions are. The forecast curve builds in rising free cash flow through the next decade while Microsoft is also ploughing heavy sums into AI data centers and related infrastructure, supported by bond issuance and workforce reshaping. The decision to raise $25b in long term debt to fund AI buildout helps explain why the model still supports a value substantially above the market price, because the projections assume that those funded projects keep feeding into durable cash generation rather than eroding it. Find out what Microsoft could be worth using our Discounted Cash Flow (DCF) estimate.

The Microsoft Narrative: What Would Justify Today's Price?

Simply Wall St Narratives pick up where the Microsoft valuation puzzle leaves off by spelling out the specific growth, margin and earnings paths that would need to play out for the shares to be worth much more or much less than today’s level on the Community page. Instead of a single DCF or ratio output, they describe the future that figure leans on so you can watch how reality lines up with those moving parts over time.

Bulls and bears are looking at the same Microsoft AI capex wave and reaching very different conclusions about what the cash flows are worth.

Bull case: 16% undervalued

According to the analyst consensus Narrative on Simply Wall St, the bullish view leans heavily on Microsoft’s ability to convert AI demand into durable cash.

"The rapid buildout of AI infrastructure, including plans for roughly US$175b to US$190b of calendar 2026 capital expenditures and deployment of first party Maia and Cobalt chips, is intended to address capacity constraints where AI demand currently exceeds supply and, if fully utilized, can support higher cloud and AI revenue as well as future earnings…"

Discover why this Narrative puts Microsoft at 16% undervalued.

Bear case: 21% overvalued

tripledub, a Simply Wall St Community investor who wrote the Narrative, argues that the scale and funding of Microsoft’s AI build raises harder questions.

"Datacenter leases signed and not yet started reached $364.6 billion, up from $329.1 billion in June and $196.6 billion in March…"

Explore why this Narrative puts Microsoft at 21% overvalued.

Before acting on Microsoft’s valuation, weigh who is steering the ship

Price and cash flows tell only part of the Microsoft story, because the people making capital calls and how they are rewarded can either reinforce or undermine that valuation case. See who runs Microsoft and how they are paid.

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