Is Mirion Technologies (MIR) Below Fair Value On Its Perma Fix Partnership?

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Why the new Perma-Fix partnership matters for Mirion Technologies

Mirion Technologies (MIR) has moved into the spotlight after Perma-Fix Environmental Services announced a partnership with the company under the Small Business Administration’s Mentor Protégé Program, which focuses on U.S. nuclear cleanup work.

See our latest analysis for Mirion Technologies.

For Mirion Technologies, the partnership news comes after a mixed price run. The 1-day share price return is 4.59% and the 7-day share price return is 4.87%, set against a year to date share price decline of 34.07% and a 3-year total shareholder return of 101.67%. Together, these figures indicate that recent momentum has picked up even though longer term performance still reflects earlier strength and a reassessment of risk.

If this Perma-Fix deal has you thinking about the wider nuclear and radiation ecosystem, it can help to see what else is out there. Take the next step and review our nuclear energy infrastructure stocks screener through the 89 nuclear energy infrastructure stocks

Mirion Technologies has enjoyed a sharp bounce even though the longer track record still reflects earlier repricing. Is this latest move a clearer indication of improving business fundamentals, or is it mostly a sentiment reset that the valuation section can test?

Most Popular Narrative: 36.7% Undervalued

The most followed narrative places Mirion Technologies fair value at $24.80 per share, compared with the last close of $15.71, which highlights a wide gap investors will want to understand.

The accelerating global shift toward expanded nuclear power generation, coupled with rising capital budgets for modernization, life extensions, and increased capacity of the existing reactor fleet, is likely to drive sustained double-digit organic revenue growth and expand Mirion's higher-margin installed base business in coming years.

Strong momentum in advanced nuclear projects, including utility-scale new builds and rapid activity in the small modular reactor (SMR) market, has materially broadened Mirion's pipeline of large, multi-year opportunities, creating potential for significant step-changes in future order intake, backlog, and top-line revenue.

Read the complete narrative.

Want to see what justifies that gap between price and fair value? This narrative leans heavily on ambitious revenue growth, rising margins, and a richer earnings profile. Curious which specific assumptions carry the most weight in that $24.80 figure?

Result: Fair Value of $24.80 (UNDERVALUED)

Have a read of the narrative in full and understand what's behind the forecasts.

However, Mirion Technologies still faces concentration risk in nuclear markets and execution risk from acquisitions, either of which could challenge the optimistic growth assumptions behind that 36.7% discount.

Find out about the key risks to this Mirion Technologies narrative.

Another view on Mirion Technologies valuation

The analyst narrative suggests Mirion Technologies could be 36.7% undervalued, yet the current P/S ratio of 3.7x tells a different story. That level is above the US Electronic industry at 2.8x and the peer average at 2.6x, and it also sits above the fair ratio of 3.1x. Is the market already pricing in a lot of the optimism?

See what the numbers say about this price — find out in our valuation breakdown.

NYSE:MIR P/S Ratio as at Aug 2026
NYSE:MIR P/S Ratio as at Aug 2026

Next Steps

With mixed signals around Mirion Technologies so far, it helps to move quickly, test the data yourself, and decide what matters most to you. To see a balanced view of both the concerns and the potential upside, review the 3 key rewards and 3 important warning signs.

Looking for more Mirion Technologies style investment ideas?

If this Mirion Technologies story has you thinking more broadly about opportunities, use the tools at hand to spot other stocks that could fit your portfolio goals.

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.

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Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team@simplywallst.com

About NYSE:MIR

Mirion Technologies

Provides radiation detection, measurement, analysis, and monitoring products and services in North America, Europe, and the Asia Pacific.

Proven track record with moderate growth potential.

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