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Mirion Technologies

MIR
43
Industrial - Machinery · Industrials
Price
$15.97
-0.19 (-1.18%)
Market Cap
$3.91B
Winston Score
43
Winston is serious
Mixed quality — meaningful strengths and weaknesses.

Share count rising — dilution

+25.5% over 4y

The company has issued more shares over this period, which dilutes each existing shareholder’s stake.

Diluted shares outstanding: 208.1M (2021) → 261.2M (2025)

Mirion Technologies makes equipment that detects and measures radiation. Its products include radiation detectors, dosimeters, and monitoring systems used by nuclear power plants, hospitals, military organizations, and government agencies. The company is one of the largest providers of radiation safety and measurement technology in the world.

Mirion earns revenue by selling hardware, software, and related services to its customers, with a growing portion coming from recurring service contracts and calibration work. It operates globally, with significant business in North America and Europe, and generates roughly $800 million in annual revenue. The company's moat comes from strict regulatory requirements in nuclear and medical markets, which make customers slow to switch suppliers once certified. The key growth driver is expanding nuclear energy capacity worldwide, as more countries invest in nuclear power to meet clean energy goals, though integration risks from past acquisitions and its low return on invested capital remain areas to watch.

Winston Score History

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Growth Profile

When traditional metrics don't capture the full picture, these are the signals growth stock investors use instead.

Revenue Growth

+27.5% YoY

YoY Growth Rate

Revenue accelerating

EPS Growth

<−1,000% YoY

YoY Growth Rate

Earnings declining

R&D Spend

$39M/ year

Rising (+11% vs prior year)

4.2% of revenue

In line with sector average (4%)

R&D investment increasing — building for the future

Insider Activity

7.9%ownership

Flat

Insiders holding steady — not selling despite ability to

Cash Position

Cash flow positive

$398M cash & investments

Quarterly Free Cash Flow

↑ Burn rate improving

Company generates more cash than it spends — no dilution risk from fundraising

Revenue accelerating

Mirion Technologies grew revenue 28% year-over-year and the growth rate is speeding up. That's the kind of momentum growth investors look for — the question is whether margins can follow.

The Winston Score above measures business quality today. Growth stocks often score lower because they invest in the future rather than maximising current profits. These metrics show what matters most for evaluating that future.

Score breakdown

Every number that matters to educated investors.

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Quality

Gross Margin
46.2%
Healthy — 46.2% gross margin
Operating Margin
1.4%
Thin — 1.4% operating margin
ROCE
0.1%
Weak — 0.1% return on capital

ROIC between 0% and 5%. They earn a few cents back per dollar invested in the business.

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Growth

Sales YoY
+12.7%
Fast-growing sales (12.7% YoY)
EPS YoY
N/A
Data not available
EPS Consistency
4/8 quarters
Earnings inconsistent quarter-to-quarter

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Cash Flow

Cash Conversion
506%
Turns 506% of profit into real cash
FCF Margin
9.1%
Modest free cash flow (9.1%)

FCF margin between 0% and 10%. Some cash from sales, but not a lot.

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Stability

Debt / Equity
0.66
Moderate — manageable debt (0.66)
Interest Cover
1.22x
Dangerous — barely covers interest (1.2x)

Interest coverage between 1 and 3. Profits cover interest, but with little room to spare.

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Valuation

P/E Ratio (TTM)
150.8x
Expensive — P/E 150.8

P/E over 35. The market is pricing in heavy, sustained growth.

P/E vs Forward
+118.4
GROWING
Earnings expected to grow meaningfully — cheaper on forward P/E (150.8 → 32.4)

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Dividends

Not applicable for this business.
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