CAE vs HEI vs TDG vs LDOS

For growth investors, HEICO Corporation (HEI) is the stronger pick with 16.

3% revenue growth year-over-year, versus 3. 1% for Leidos Holdings, Inc. (LDOS). Leidos Holdings, Inc. (LDOS) offers the better valuation at 11. 8x trailing P/E (11. 1x forward), making it the more compelling value choice. Analysts rate CAE Inc. (CAE) a "Buy" — based on 17 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, Leidos Holdings, Inc.

(LDOS) is the cheapest at 11. 8x versus HEICO Corporation at 59. 1x. On forward P/E, Leidos Holdings, Inc. is actually cheaper at 11. 1x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Leidos Holdings, Inc. wins at 0. 54x versus CAE Inc. 's 12. 34x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, TransDigm Group Incorporated (TDG) delivered a total return of +140.

2%, compared to -13. 9% for CAE Inc. (CAE). Over 10 years, the gap is even starker: HEI returned +823. 0% versus CAE's +139. 4%. 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), Leidos Holdings, Inc.

(LDOS) is the lower-risk stock at 0. 42β versus CAE Inc. 's 1. 16β — meaning CAE is approximately 174% more volatile than LDOS relative to the S&P 500. On balance sheet safety, HEICO Corporation (HEI) carries a lower debt/equity ratio of 50% versus 119% for Leidos Holdings, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), HEICO Corporation (HEI) is pulling ahead at 16.

3% versus 3. 1% for Leidos Holdings, Inc. (LDOS). On earnings-per-share growth, the picture is similar: CAE Inc. grew EPS 224. 5% year-over-year, compared to 20. 7% for Leidos Holdings, Inc.. Over a 3-year CAGR, HEI leads at 26. 6% 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.

TransDigm Group Incorporated (TDG) is the more profitable company, earning 23.

5% net margin versus 8. 5% for Leidos Holdings, Inc. — meaning it keeps 23. 5% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: TDG leads at 47. 2% versus 12. 3% for LDOS. At the gross margin level — before operating expenses — TDG leads at 60. 1%, 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, Leidos Holdings, Inc. (LDOS) is the more undervalued stock at a PEG of 0. 54x versus CAE Inc. 's 12. 34x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Leidos Holdings, Inc. (LDOS) trades at 11. 1x forward P/E versus 51. 6x for HEICO Corporation — 40. 5x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for LDOS: 55. 5% to $204. 00.

In this comparison, TDG (13.

3% yield), LDOS (1. 2% yield) pay a dividend. CAE, HEI do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Leidos Holdings, Inc.

(LDOS) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 42), 1. 2% yield, +223. 8% 10Y return). Both have compounded well over 10 years (LDOS: +223. 8%, CAE: +139. 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 (CAE (Industrials) and HEI (Industrials) and TDG (Industrials) and LDOS (Technology)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: CAE is a small-cap quality compounder stock; HEI is a mid-cap high-growth stock; TDG is a mid-cap income-oriented stock; LDOS is a mid-cap deep-value stock. TDG, LDOS pay a dividend while CAE, HEI 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.