NOS S.G.P.S has delivered a powerful share price run in recent years, which naturally raises the question of whether today's €5.31 level is in line with the cash the business can generate. With the focus on its cash flows, the key issue is how that track record squares with an intrinsic value estimate based on a Discounted Cash Flow (DCF) approach.

• Over the past 5 years, NOS S.G.P.S has returned 148.9%, putting a lot of recent investor gains on the line if its cash generation does not keep pace with expectations built into the price.

• The telecom operator's ability to convert earnings into predictable cash flows, while funding network investment and keeping its balance sheet in check, can shape how comfortably the current share price sits against an intrinsic value estimate.

• Prefer to judge NOS S.G.P.S on earnings? See what NOS S.G.P.S's 10.1x P/E says about the price .

For investors, the debate is whether NOS S.G.P.S's recent market performance is fully supported by the cash flows implied in its intrinsic value estimate.

If you are testing whether NOS S.G.P.S's recent 5 year share price run is really backed by its cash flows, it can help to compare that story with 195 high quality undervalued stocks .

Is NOS S.G.P.S a Bargain on Cash Flow?

The Discounted Cash Flow (DCF) method used here looks at the cash NOS S.G.P.S can return to shareholders over time and then discounts that back to today. On the latest numbers, the group generated roughly €383.7m of free cash flow over the last twelve months, which is a solid base for the 2 Stage Free Cash Flow to Equity model.

Analyst projections in the DCF point to free cash flow that levels out rather than increasing rapidly, with estimates moving toward the mid €200m range by 2030. Even on those tempered assumptions and after discounting future cash at the rates used, the model suggests an intrinsic value that sits substantially above the current €5.31 share price. This is why some investors may view NOS S.G.P.S as potentially undervalued on cash flow alone. Find out what NOS S.G.P.S could be worth using our Discounted Cash Flow (DCF) estimate .

The NOS S.G.P.S Narrative: What Would Justify Today's Price?

NOS S.G.P.S' valuation story so far raises a natural follow up question. This is where Simply Wall St Narratives come in as the link between the current cash flow based model and the assumptions that would need to hold on growth, margins and earnings for the stock to be worth much more or much less than today's price. These can be found on Simply Wall St's Community page. Each narrative treats fair value as a thesis you can revisit over time, rather than a one off snapshot, so you can see how the idea holds up as new information arrives.