WTS vs ITRI vs ERII vs AME

For growth investors, Watts Water Technologies, Inc.

(WTS) is the stronger pick with 8. 3% revenue growth year-over-year, versus -7. 1% for Energy Recovery, Inc. (ERII). 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 AMETEK, Inc. at 36. 6x. On forward P/E, Itron, Inc. is actually cheaper at 13. 5x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Watts Water Technologies, Inc. wins at 1. 01x versus AMETEK, Inc. 's 2. 60x — a reasonable growth-adjusted valuation.

Over the past 5 years, Watts Water Technologies, Inc.

(WTS) delivered a total return of +121. 2%, compared to -54. 3% for Energy Recovery, Inc. (ERII). Over 10 years, the gap is even starker: WTS returned +452. 2% 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), AMETEK, Inc.

(AME) is the lower-risk stock at 0. 93β versus Energy Recovery, Inc. 's 1. 53β — meaning ERII is approximately 64% more volatile than AME relative to the S&P 500. On balance sheet safety, Energy Recovery, Inc. (ERII) carries a lower debt/equity ratio of 5% versus 74% for Itron, Inc. — giving it more financial flexibility in a downturn.

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

(WTS) is pulling ahead at 8. 3% versus -7. 1% for Energy Recovery, Inc. (ERII). On earnings-per-share growth, the picture is similar: Itron, Inc. grew EPS 25. 7% year-over-year, compared to 5. 0% for Energy Recovery, 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.

AMETEK, Inc.

(AME) is the more profitable company, earning 20. 0% net margin versus 12. 7% for Itron, Inc. — meaning it keeps 20. 0% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: AME leads at 26. 2% versus 13. 5% for ITRI. 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.

The PEG ratio (forward P/E divided by expected earnings growth rate) is the most precise measure of undervaluation relative to growth potential.

By this metric, Watts Water Technologies, Inc. (WTS) is the more undervalued stock at a PEG of 1. 01x versus AMETEK, Inc. 's 2. 60x. A PEG below 1. 5 suggests fair-to-attractive pricing relative to expected growth. On forward earnings alone, Itron, Inc. (ITRI) trades at 13. 5x forward P/E versus 29. 1x for AMETEK, Inc. — 15. 6x 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, WTS (0.

7% yield), AME (0. 5% yield) pay a dividend. ITRI, ERII do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, AMETEK, Inc.

(AME) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 93), 0. 5% yield, +423. 4% 10Y return). Energy Recovery, Inc. (ERII) carries a higher beta of 1. 53 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (AME: +423. 4%, ERII: -11. 9%), 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 (WTS (Industrials) and ITRI (Technology) and ERII (Industrials) and AME (Industrials)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: WTS is a small-cap quality compounder stock; ITRI is a small-cap deep-value stock; ERII is a small-cap quality compounder stock; AME is a mid-cap quality compounder stock. WTS, AME pay a dividend while ITRI, ERII 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.