CLWT vs ITRI vs ERII vs REZI vs PESI

For growth investors, Resideo Technologies, Inc.

(REZI) is the stronger pick with 10. 5% revenue growth year-over-year, versus -14. 3% for Euro Tech Holdings Company Limited (CLWT). Itron, Inc. (ITRI) offers the better valuation at 12. 5x trailing P/E (13. 5x forward), making it the more compelling value choice. Analysts rate Energy Recovery, Inc. (ERII) a "Buy" — based on 16 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 trailing P/E, Itron, Inc.

(ITRI) is the cheapest at 12. 5x versus Energy Recovery, Inc. at 22. 5x. On forward P/E, Resideo Technologies, Inc. is actually cheaper at 13. 1x — notably different from the trailing picture, reflecting expected earnings growth.

Over the past 5 years, Perma-Fix Environmental Services, Inc.

(PESI) delivered a total return of +45. 6%, compared to -54. 3% for Energy Recovery, Inc. (ERII). Over 10 years, the gap is even starker: PESI returned +178. 6% versus ERII's -11. 9%. 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), Euro Tech Holdings Company Limited (CLWT) is the lower-risk stock at 0.

37β versus Resideo Technologies, Inc. 's 2. 27β — meaning REZI is approximately 508% more volatile than CLWT relative to the S&P 500. On balance sheet safety, Euro Tech Holdings Company Limited (CLWT) carries a lower debt/equity ratio of 1% versus 109% for Resideo Technologies, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Resideo Technologies, Inc.

(REZI) is pulling ahead at 10. 5% versus -14. 3% for Euro Tech Holdings Company Limited (CLWT). On earnings-per-share growth, the picture is similar: Perma-Fix Environmental Services, Inc. grew EPS 43. 6% year-over-year, compared to -718. 0% for Resideo Technologies, Inc.. Over a 3-year CAGR, ITRI leads at 9. 7% 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.

Energy Recovery, Inc.

(ERII) is the more profitable company, earning 17. 0% net margin versus -22. 3% for Perma-Fix Environmental Services, Inc. — meaning it keeps 17. 0% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: ERII leads at 18. 2% versus -19. 0% for PESI. At the gross margin level — before operating expenses — ERII leads at 65. 2%, 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, Resideo Technologies, Inc.

(REZI) trades at 13. 1x forward P/E versus 22. 9x for Energy Recovery, Inc. — 9. 8x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for ITRI: 68. 8% to $137. 00.

In this comparison, CLWT (6.

4% yield), REZI (0. 6% yield) pay a dividend. ITRI, ERII, PESI do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Euro Tech Holdings Company Limited (CLWT) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0.

37), 6. 4% yield, +164. 8% 10Y return). Perma-Fix Environmental Services, Inc. (PESI) carries a higher beta of 1. 85 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (CLWT: +164. 8%, PESI: +178. 6%), 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 (CLWT (Industrials) and ITRI (Technology) and ERII (Industrials) and REZI (Industrials) and PESI (Industrials)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: CLWT is a small-cap deep-value stock; ITRI is a small-cap deep-value stock; ERII is a small-cap quality compounder stock; REZI is a small-cap quality compounder stock; PESI is a small-cap quality compounder stock. CLWT, REZI pay a dividend while ITRI, ERII, PESI do not, making them suitable for different income and tax situations. 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.