Fortum Oyj (HLSE:FORTUM) Lands A Google Nuclear Deal, Is It Now Overvalued?

Fortum Oyj (HLSE:FORTUM) just tied its future Loviisa nuclear output to Google through a multi decade power purchase agreement, which gives the utility clearer long term revenue visibility around its planned lifetime extension investments. Recent trading suggests investors are leaning into that story. Fortum Oyj’s share price return is up 19.3% over the past month…


Fortum Oyj (HLSE:FORTUM) Lands A Google Nuclear Deal, Is It Now Overvalued?

Fortum Oyj (HLSE:FORTUM) just tied its future Loviisa nuclear output to Google through a multi decade power purchase agreement, which gives the utility clearer long term revenue visibility around its planned lifetime extension investments.

Recent trading suggests investors are leaning into that story. Fortum Oyj’s share price return is up 19.3% over the past month and 28.3% year to date, while the 1 year total shareholder return of 59.3% points to momentum that has been building rather than fading.

Spot similar AI power and nuclear-backed momentum stories by scanning the handpicked 91 nuclear energy infrastructure stocks, now feeding long-term demand from data centers and energy-hungry cloud infrastructure.

Fortum Oyj’s nuclear PPA story is now colliding with valuation reality, with the share price trading above the average analyst target yet screens flagging a sizeable intrinsic discount. Is the market overreacting to the recent surge, or still underpricing it?

Most Popular Narrative: 16.5% Overvalued

Against a narrative fair value of โ‚ฌ20.37 and a last close of โ‚ฌ23.73, Fortum Oyj now trades at a premium that relies heavily on how its nuclear and data center opportunity plays out over time.

Fortum Oyj is executing a sizable fixed cost reduction program that will lower its recurring annual fixed cost base by โ‚ฌ100 million by 2026 while leverage remains low at 1.0 times and liquidity is very strong. This combination of efficiency gains and balance sheet strength could support higher long term operating margins and earnings than implied by a falling share price scenario.

See why 7 investors see Fortum Oyj as 16% overvalued.

Result: Fair Value of โ‚ฌ20.37 (OVERVALUED)

Still, the narrative around Fortum Oyj can shift quickly if rising tax and regulatory costs bite harder than expected, or if hydro and nuclear availability disappoints.

Find out about the key risks to this Fortum Oyj narrative.

Another View: SWS DCF Flags Fortum Oyj As Deeply Undervalued

While analyst fair value pegs Fortum Oyj at โ‚ฌ20.37 and labels the stock as 16.5% overvalued, the SWS DCF model lands in a very different place. It estimates future cash flows support a value of โ‚ฌ45.92 per share, which is 48.3% above the current โ‚ฌ23.73 price.

That kind of gap between a near term earnings based view and a longer term cash flow model raises a simple question. Is the crowd overpaying for recent momentum, or are analyst targets underplaying what multi decade nuclear and PPA cash flows could be worth?

Look into how the SWS DCF model arrives at its fair value.

FORTUM Discounted Cash Flow as at Sep 2026
FORTUM Discounted Cash Flow as at Sep 2026

Simply Wall St performs a discounted cash flow (DCF) on every stock in the world every day (check out Fortum Oyj for example). We show the entire calculation in full. You can track the result in your watchlist or portfolio and be alerted when this changes, or use our stock screener to discover 194 high quality undervalued stocks. If you save a screener we even alert you when new companies match – so you never miss a potential opportunity.

Next Steps

Mixed signals on Fortum Oyj so far. If you want to cut through the noise and move quickly, weigh the data on both sides with 2 key rewards and 2 important warning signs

Looking for more investment ideas beyond Fortum Oyj?

If Fortum Oyj has sharpened your focus on quality opportunities, do not stop here. Broaden your watchlist and pressure test your thesis against other strong contenders.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.

Companies discussed in this article include FORTUM.HE.

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