Mirion Technologies (MIR) Joins Russell Indices, Is It Still 37% Undervalued?

What Mirion’s New Index Inclusions Mean For Investors Mirion Technologies (MIR) has been added to several Russell indices, including multiple value and defensive benchmarks. This type of change can affect how index-tracking funds and institutional investors approach the stock. For you as a shareholder or potential buyer, these index additions matter because they can influence trading volumes, ownership mix, and how the market views Mirion within the small cap and value segments. See our latest analysis for Mirion Technologies. Despite Mirion Technologies being added to several Russell value and defensive indices and partnering with Commercetools on AI powered B2B tools, recent momentum has been soft, with the share price down 26.7% year to date while the 3 year total shareholder return of 109.9% still reflects a very strong longer term outcome. If these index moves have you thinking about where else to put fresh capital, this is a good moment to scan opportunities in nuclear related infrastructure via our 89 nuclear energy infrastructure stocks With Mirion Technologies shares down this year but carrying a value score of 1 and trading at a discount to analyst targets, you have to ask: is this a genuine mispricing, or is the market already banking on future growth? Most Popular Narrative: 37.4% Undervalued With Mirion Technologies last closing at $17.46 against a narrative fair value of $27.90, the core question is whether the long term growth and margin story behind that figure holds up for you. 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 how Mirion turns this nuclear and software pipeline into that higher fair value? The narrative leans heavily on faster earnings, richer margins, and a premium future profit multiple that is usually reserved for faster growing sectors. Result: Fair Value of $27.90 (UNDERVALUED) Have a read of the narrative in full and understand what’s behind the forecasts. However, Mirion Technologies remains tightly tied to nuclear project cycles, and heavier use of acquisitions could introduce integration setbacks that challenge the current growth and margin narrative. Find out about the key risks to this Mirion Technologies narrative. Another View: Mirion’s Valuation Looks Full On Sales While the Mirion Technologies narrative fair value of $27.90 suggests upside, the current P/S ratio of 4.4x tells a more cautious story. That multiple is higher than the US Electronic industry at 2.8x, peers at 3.2x, and even the fair ratio estimate of 3.9x, which points to less room for error if growth or margins fall short. For an investor weighing this premium against the nuclear and software story, the question is simple: is the current price compensating you enough for execution and sector risk, or are you paying ahead of the fundamentals already? See what the numbers say about this price — find out in our valuation breakdown. NYSE:MIR P/S Ratio as at Jun 2026Next Steps If the mix of upside potential and flagged concerns around Mirion Technologies feels finely balanced, do not wait for a consensus to form. Instead, weigh the 3 key rewards and 3 important warning signs against your own expectations and make your own call. Looking For More Investment Ideas Beyond Mirion Technologies? If Mirion Technologies has sharpened your focus on where to put your next dollar, do not stop here. Broaden your watchlist with other clear, data driven ideas. Target steady cash generators by reviewing companies in the 9 dividend fortresses that may offer income potential alongside more established business models. Hunt for potential mispricings by scanning the 42 high quality undervalued stocks that line up strong fundamentals with prices that sit below their assessed worth. Prioritize capital preservation by checking the 72 resilient stocks with low risk scores where balance sheets and risk scores work together to reduce unpleasant surprises. 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.New: Manage All Your Stock Portfolios in One PlaceWe’ve created the ultimate portfolio companion for stock investors, and it’s free.• Connect an unlimited number of Portfolios and see your total in one currency• Be alerted to new Warning Signs or Risks via email or mobile• Track the Fair Value of your stocksTry a Demo Portfolio for FreeHave feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email [email protected]



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