ALNT vs EMR vs ROK vs AME

For growth investors, AMETEK, Inc.

(AME) is the stronger pick with 6. 6% revenue growth year-over-year, versus 1. 0% for Rockwell Automation, Inc. (ROK). Emerson Electric Co. (EMR) offers the better valuation at 35. 4x trailing P/E (22. 0x forward), making it the more compelling value choice. Analysts rate Allient Inc. (ALNT) a "Buy" — based on 5 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, Emerson Electric Co.

(EMR) is the cheapest at 35. 4x versus Allient Inc. at 69. 2x. On forward P/E, Emerson Electric Co. is actually cheaper at 22. 0x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: AMETEK, Inc. wins at 2. 50x versus Allient Inc. 's 5. 32x.

Over the past 5 years, Allient Inc.

(ALNT) delivered a total return of +150. 2%, compared to +57. 7% for Emerson Electric Co. (EMR). Over 10 years, the gap is even starker: AME returned +397. 2% versus EMR's +216. 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), AMETEK, Inc.

(AME) is the lower-risk stock at 0. 93β versus Allient Inc. 's 2. 10β — meaning ALNT is approximately 126% more volatile than AME relative to the S&P 500. On balance sheet safety, AMETEK, Inc. (AME) carries a lower debt/equity ratio of 21% versus 98% for Rockwell Automation, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), AMETEK, Inc.

(AME) is pulling ahead at 6. 6% versus 1. 0% for Rockwell Automation, Inc. (ROK). On earnings-per-share growth, the picture is similar: Allient Inc. grew EPS 67. 1% year-over-year, compared to -7. 4% for Rockwell Automation, Inc.. Over a 3-year CAGR, EMR leads at 9. 3% 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 4. 0% for Allient 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 8. 7% for ALNT. At the gross margin level — before operating expenses — EMR leads at 52. 8%, 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, AMETEK, Inc. (AME) is the more undervalued stock at a PEG of 2. 50x versus Allient Inc. 's 5. 32x. Both stocks trade at elevated growth-adjusted valuations, so expected growth needs to materialise. On forward earnings alone, Emerson Electric Co. (EMR) trades at 22. 0x forward P/E versus 36. 2x for Allient Inc. — 14. 2x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for EMR: 14. 4% to $163. 62.

All stocks in this comparison pay dividends.

Emerson Electric Co. (EMR) offers the highest yield at 1. 5%, versus 0. 1% for Allient Inc. (ALNT).

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, +397. 2% 10Y return). Allient Inc. (ALNT) carries a higher beta of 2. 10 — 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: +397. 2%, ALNT: +314. 8%), 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 (ALNT (Technology) and EMR (Industrials) and ROK (Industrials) and AME (Industrials)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

EMR, ROK, AME pay a dividend while ALNT does 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.