NPKI vs CECO vs HYLN vs ASTE vs CMI

For growth investors, Hyliion Holdings Corp.

(HYLN) is the stronger pick with 130. 3% revenue growth year-over-year, versus -1. 3% for Cummins Inc. (CMI). Astec Industries, Inc. (ASTE) offers the better valuation at 31. 5x trailing P/E (14. 2x forward), making it the more compelling value choice. Analysts rate NPK International Inc. (NPKI) a "Buy" — based on 3 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, Astec Industries, Inc.

(ASTE) is the cheapest at 31. 5x versus CECO Environmental Corp. at 59. 4x. On forward P/E, Astec Industries, Inc. is actually cheaper at 14. 2x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: CECO Environmental Corp. wins at 1. 14x versus Cummins Inc. 's 2. 30x — a reasonable growth-adjusted valuation.

Over the past 5 years, CECO Environmental Corp.

(CECO) delivered a total return of +1003%, compared to -72. 9% for Hyliion Holdings Corp. (HYLN). Over 10 years, the gap is even starker: CECO returned +1282% versus HYLN's -74. 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), CECO Environmental Corp.

(CECO) is the lower-risk stock at 1. 36β versus Hyliion Holdings Corp. 's 2. 39β — meaning HYLN is approximately 75% more volatile than CECO relative to the S&P 500. On balance sheet safety, Hyliion Holdings Corp. (HYLN) carries a lower debt/equity ratio of 2% versus 61% for Cummins Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Hyliion Holdings Corp.

(HYLN) is pulling ahead at 130. 3% versus -1. 3% for Cummins Inc. (CMI). On earnings-per-share growth, the picture is similar: Astec Industries, Inc. grew EPS 784. 2% year-over-year, compared to -27. 7% for Cummins Inc.. Over a 3-year CAGR, CECO leads at 22. 4% 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.

NPK International Inc.

(NPKI) is the more profitable company, earning 13. 0% net margin versus -1645. 7% for Hyliion Holdings Corp. — meaning it keeps 13. 0% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: NPKI leads at 16. 9% versus -1886. 4% for HYLN. At the gross margin level — before operating expenses — NPKI leads at 35. 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.

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, CECO Environmental Corp. (CECO) is the more undervalued stock at a PEG of 1. 14x versus Cummins Inc. 's 2. 30x. A PEG below 1. 5 suggests fair-to-attractive pricing relative to expected growth. On forward earnings alone, Astec Industries, Inc. (ASTE) trades at 14. 2x forward P/E versus 48. 8x for CECO Environmental Corp. — 34. 7x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for HYLN: 26. 7% to $3. 13.

In this comparison, CMI (1.

1% yield), ASTE (1. 0% yield) pay a dividend. NPKI, CECO, HYLN do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, CECO Environmental Corp.

(CECO) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (+1282% 10Y return). Hyliion Holdings Corp. (HYLN) carries a higher beta of 2. 39 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (CECO: +1282%, HYLN: -74. 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 (NPKI (Energy) and CECO (Industrials) and HYLN (Consumer Cyclical) and ASTE (Industrials) and CMI (Industrials)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: NPKI is a small-cap high-growth stock; CECO is a small-cap high-growth stock; HYLN is a small-cap high-growth stock; ASTE is a small-cap quality compounder stock; CMI is a mid-cap quality compounder stock. ASTE, CMI pay a dividend while NPKI, CECO, HYLN 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.