MIR vs ATEC

For growth investors, Alphatec Holdings, Inc.

(ATEC) is the stronger pick with 25. 0% revenue growth year-over-year, versus 7. 5% for Mirion Technologies, Inc. (MIR). Mirion Technologies, Inc. (MIR) offers the better valuation at 179. 5x trailing P/E (36. 2x forward), making it the more compelling value choice. Analysts rate Mirion Technologies, Inc. (MIR) a "Buy" — based on 8 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

On forward P/E, Alphatec Holdings, Inc.

is actually cheaper at 27. 1x — notably different from the trailing picture, reflecting expected earnings growth.

Over the past 5 years, Mirion Technologies, Inc.

(MIR) delivered a total return of +93. 4%, compared to -48. 7% for Alphatec Holdings, Inc. (ATEC). Over 10 years, the gap is even starker: ATEC returned +225. 4% versus MIR's +98. 5%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

By beta (market sensitivity over 5 years), Alphatec Holdings, Inc.

(ATEC) is the lower-risk stock at 1. 13β versus Mirion Technologies, Inc. 's 1. 98β — meaning MIR is approximately 76% more volatile than ATEC relative to the S&P 500. On balance sheet safety, Mirion Technologies, Inc. (MIR) carries a lower debt/equity ratio of 66% versus 17% for Alphatec Holdings, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Alphatec Holdings, Inc.

(ATEC) is pulling ahead at 25. 0% versus 7. 5% for Mirion Technologies, Inc. (MIR). On earnings-per-share growth, the picture is similar: Mirion Technologies, Inc. grew EPS 161. 1% year-over-year, compared to 15. 0% for Alphatec Holdings, Inc.. Over a 3-year CAGR, ATEC leads at 29. 6% annualised revenue growth. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

Mirion Technologies, Inc.

(MIR) is the more profitable company, earning 3. 1% net margin versus -18. 8% for Alphatec Holdings, Inc. — meaning it keeps 3. 1% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: MIR leads at 5. 6% versus -10. 7% for ATEC. At the gross margin level — before operating expenses — ATEC leads at 69. 6%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

On forward earnings alone, Alphatec Holdings, Inc.

(ATEC) trades at 27. 1x forward P/E versus 36. 2x for Mirion Technologies, Inc. — 9. 1x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for ATEC: 222. 6% to $25. 00.

None of the stocks in this comparison currently pay a material dividend.

All are effectively zero-yield and should be held for capital appreciation rather than income.

For long-horizon retirement investors, Alphatec Holdings, Inc.

(ATEC) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 1. 13), +225. 4% 10Y return). Mirion Technologies, Inc. (MIR) carries a higher beta of 1. 98 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (ATEC: +225. 4%, MIR: +98. 5%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

These companies operate in different sectors (MIR (Industrials) and ATEC (Healthcare)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: MIR is a small-cap quality compounder stock; ATEC is a small-cap high-growth stock. These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.