RUSHA vs CMI vs PCAR vs ALSN vs BWA

For growth investors, BorgWarner Inc.

(BWA) is the stronger pick with 1. 7% revenue growth year-over-year, versus -15. 5% for PACCAR Inc (PCAR). Allison Transmission Holdings, Inc. (ALSN) offers the better valuation at 16. 8x trailing P/E (13. 6x forward), making it the more compelling value choice. Analysts rate Cummins Inc. (CMI) a "Buy" — based on 51 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, Allison Transmission Holdings, Inc.

(ALSN) is the cheapest at 16. 8x versus BorgWarner Inc. at 45. 5x. On forward P/E, BorgWarner Inc. is actually cheaper at 11. 3x — notably different from the trailing picture, reflecting expected earnings growth. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Allison Transmission Holdings, Inc. wins at 0. 60x versus Cummins Inc. 's 2. 30x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Allison Transmission Holdings, Inc.

(ALSN) delivered a total return of +183. 5%, compared to +28. 7% for BorgWarner Inc. (BWA). Over 10 years, the gap is even starker: RUSHA returned +812. 3% versus BWA's +114. 1%. 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), Rush Enterprises, Inc.

(RUSHA) is the lower-risk stock at 0. 98β versus Cummins Inc. 's 1. 57β — meaning CMI is approximately 61% more volatile than RUSHA relative to the S&P 500. On balance sheet safety, Cummins Inc. (CMI) carries a lower debt/equity ratio of 61% versus 156% for Allison Transmission Holdings, Inc. — giving it more financial flexibility in a downturn.

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

(BWA) is pulling ahead at 1. 7% versus -15. 5% for PACCAR Inc (PCAR). On earnings-per-share growth, the picture is similar: Allison Transmission Holdings, Inc. grew EPS -11. 8% year-over-year, compared to -42. 9% for PACCAR Inc. Over a 3-year CAGR, CMI leads at 6. 2% 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.

Allison Transmission Holdings, Inc.

(ALSN) is the more profitable company, earning 20. 7% net margin versus 1. 9% for BorgWarner Inc. — meaning it keeps 20. 7% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: ALSN leads at 32. 3% versus 5. 3% for RUSHA. At the gross margin level — before operating expenses — ALSN leads at 48. 4%, 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, Allison Transmission Holdings, Inc. (ALSN) is the more undervalued stock at a PEG of 0. 60x versus Cummins Inc. 's 2. 30x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, BorgWarner Inc. (BWA) trades at 11. 3x forward P/E versus 25. 9x for Cummins Inc. — 14. 6x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for BWA: 18. 3% to $68. 80.

All stocks in this comparison pay dividends.

PACCAR Inc (PCAR) offers the highest yield at 3. 8%, versus 0. 9% for Allison Transmission Holdings, Inc. (ALSN).

For long-horizon retirement investors, Rush Enterprises, Inc.

(RUSHA) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 98), 1. 0% yield, +812. 3% 10Y return). Cummins Inc. (CMI) carries a higher beta of 1. 57 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (RUSHA: +812. 3%, CMI: +557. 4%), 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 (RUSHA (Consumer Cyclical) and CMI (Industrials) and PCAR (Industrials) and ALSN (Consumer Cyclical) and BWA (Consumer Cyclical)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: RUSHA is a small-cap quality compounder stock; CMI is a mid-cap quality compounder stock; PCAR is a mid-cap income-oriented stock; ALSN is a mid-cap deep-value stock; BWA is a mid-cap quality compounder 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.