LII vs CARR vs TT vs JCI vs ALLE

For growth investors, Allegion plc (ALLE) is the stronger pick with 7.

8% revenue growth year-over-year, versus -3. 3% for Carrier Global Corporation (CARR). Allegion plc (ALLE) offers the better valuation at 18. 4x trailing P/E (15. 6x forward), making it the more compelling value choice. Analysts rate Carrier Global Corporation (CARR) a "Buy" — based on 26 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, Allegion plc (ALLE) is the cheapest at 18.

4x versus Johnson Controls International plc at 52. 9x. On forward P/E, Allegion plc is actually cheaper at 15. 6x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Allegion plc wins at 0. 92x versus Johnson Controls International plc's 1. 15x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Trane Technologies plc (TT) delivered a total return of +164.

3%, compared to +3. 2% for Allegion plc (ALLE). Over 10 years, the gap is even starker: TT returned +874. 8% versus ALLE's +127. 3%. 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), Allegion plc (ALLE) is the lower-risk stock at 0.

67β versus Lennox International Inc. 's 1. 23β — meaning LII is approximately 85% more volatile than ALLE relative to the S&P 500. On balance sheet safety, Trane Technologies plc (TT) carries a lower debt/equity ratio of 54% versus 177% for Lennox International Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Allegion plc (ALLE) is pulling ahead at 7.

8% versus -3. 3% for Carrier Global Corporation (CARR). On earnings-per-share growth, the picture is similar: Trane Technologies plc grew EPS 15. 5% year-over-year, compared to -72. 4% for Carrier Global Corporation. Over a 3-year CAGR, TT leads at 10. 1% 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.

Allegion plc (ALLE) is the more profitable company, earning 15.

8% net margin versus 6. 9% for Carrier Global Corporation — meaning it keeps 15. 8% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: ALLE leads at 21. 1% versus 9. 9% for CARR. At the gross margin level — before operating expenses — ALLE leads at 45. 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, Allegion plc (ALLE) is the more undervalued stock at a PEG of 0. 92x versus Johnson Controls International plc's 1. 15x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Allegion plc (ALLE) trades at 15. 6x forward P/E versus 31. 7x for Trane Technologies plc — 16. 1x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for ALLE: 26. 1% to $172. 50.

All stocks in this comparison pay dividends.

Allegion plc (ALLE) offers the highest yield at 1. 5%, versus 0. 8% for Trane Technologies plc (TT).

For long-horizon retirement investors, Trane Technologies plc (TT) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0.

97), 0. 8% yield, +874. 8% 10Y return). Both have compounded well over 10 years (TT: +874. 8%, LII: +309. 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.

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

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.