ALSN vs APTV vs LEA vs BWA

For growth investors, Aptiv PLC (APTV) is the stronger pick with 3.

5% revenue growth year-over-year, versus -6. 7% for Allison Transmission Holdings, Inc. (ALSN). Lear Corporation (LEA) offers the better valuation at 16. 6x trailing P/E (9. 4x forward), making it the more compelling value choice. Analysts rate Aptiv PLC (APTV) a "Buy" — based on 33 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, Lear Corporation (LEA) is the cheapest at 16.

6x versus Aptiv PLC at 76. 1x. On forward P/E, Aptiv PLC is actually cheaper at 8. 7x — 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: Lear Corporation wins at 0. 37x versus Allison Transmission Holdings, Inc. 's 0. 60x — 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 -61. 6% for Aptiv PLC (APTV). Over 10 years, the gap is even starker: ALSN returned +373. 8% versus APTV's +9. 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), BorgWarner Inc.

(BWA) is the lower-risk stock at 1. 01β versus Aptiv PLC's 1. 44β — meaning APTV is approximately 42% more volatile than BWA relative to the S&P 500. On balance sheet safety, BorgWarner Inc. (BWA) carries a lower debt/equity ratio of 74% versus 156% for Allison Transmission Holdings, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Aptiv PLC (APTV) is pulling ahead at 3.

5% versus -6. 7% for Allison Transmission Holdings, Inc. (ALSN). On earnings-per-share growth, the picture is similar: Lear Corporation grew EPS -9. 1% year-over-year, compared to -89. 2% for Aptiv PLC. Over a 3-year CAGR, APTV leads at 5. 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.

Allison Transmission Holdings, Inc.

(ALSN) is the more profitable company, earning 20. 7% net margin versus 0. 8% for Aptiv PLC — 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 4. 4% for LEA. 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, Lear Corporation (LEA) is the more undervalued stock at a PEG of 0. 37x versus Allison Transmission Holdings, Inc. 's 0. 60x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Aptiv PLC (APTV) trades at 8. 7x forward P/E versus 13. 6x for Allison Transmission Holdings, Inc. — 4. 9x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for APTV: 66. 0% to $94. 75.

In this comparison, LEA (2.

3% yield), BWA (0. 9% yield), ALSN (0. 9% yield) pay a dividend. APTV does not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Allison Transmission Holdings, Inc.

(ALSN) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 1. 11), 0. 9% yield, +373. 8% 10Y return). Both have compounded well over 10 years (ALSN: +373. 8%, APTV: +9. 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.

Both stocks operate in the Consumer Cyclical sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

In terms of investment character: ALSN is a mid-cap deep-value stock; APTV is a mid-cap quality compounder stock; LEA is a small-cap deep-value stock; BWA is a mid-cap quality compounder stock. ALSN, LEA, BWA pay a dividend while APTV 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.