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Is Iberdrola (BME:IBE) Expensive After Its US And UK Grid Expansion Plan?

Simply Wall St·10/10/2026 16:37:10
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Iberdrola’s network push in the US and UK

Iberdrola (BME:IBE) has put regulated grids at the center of its strategy, announcing plans to almost triple its network asset base in the US and UK by 2031.

The move targets more predictable cash flows from regulated returns rather than greater exposure to wholesale power prices, which can swing sharply for utilities that rely more heavily on fuel-linked generation.

Trading at €21.26 after a 6.7% one-month share price return and a 14.1% share price gain year to date, Iberdrola’s network investment story comes on top of a 31.4% one-year total shareholder return and a 166.8% five-year total shareholder return, which points to long-term momentum that has recently picked up again.

Scan for other grid-focused utilities showing similar regulated momentum by reviewing our hand-picked 43 power grid technology and infrastructure stocks alongside Iberdrola’s network expansion story.

Iberdrola’s share price now sits slightly above the average analyst target and well ahead of some intrinsic value estimates. Does that recent run leave the stock stretched, or is fair value higher than it looks on paper?

Most Popular Narrative: 1% Overvalued

Iberdrola’s most followed narrative pegs fair value at €21.03, slightly below the last close at €21.26. This frames today’s grid driven optimism as already largely reflected in the price while still hinging on long term execution.

Major expansion of regulated network investments in the US and UK, supported by stable and attractive policy frameworks and recently approved regulatory determinations, is expected to nearly triple Iberdrola's regulated asset base to €90bn by 2031. This should drive sustained, predictable growth in revenues and a structural increase in regulated net margins.

See why 86 investors see Iberdrola as 1% overvalued.

Result: Fair Value of €21.03 (OVERVALUED)

Still, Iberdrola’s heavy tilt toward regulated markets in the US and UK, together with a planned €5b equity raise, leaves the narrative vulnerable to regulatory or funding shocks.

Find out about the key risks to this Iberdrola narrative.

Next Steps

If the Iberdrola story so far appears finely balanced between potential benefits and risks, consider conducting your own research promptly and evaluate the data independently with 2 key rewards and 2 important warning signs.

Looking for more Iberdrola-sized investment ideas?

Do not stop with Iberdrola. Apply the same level of scrutiny to a wider watchlist so you are not relying on a single story to carry your portfolio.

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.