AL vs GATX vs AER vs CAI vs FLY

For growth investors, Firefly Aerospace Inc.

(FLY) is the stronger pick with 163. 0% revenue growth year-over-year, versus 2. 4% for AerCap Holdings N. V. (AER). AerCap Holdings N. V. (AER) offers the better valuation at 6. 8x trailing P/E (8. 4x forward), making it the more compelling value choice. Analysts rate Air Lease Corporation (AL) a "Buy" — based on 20 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, AerCap Holdings N.

V. (AER) is the cheapest at 6. 8x versus GATX Corporation at 20. 2x. On forward P/E, AerCap Holdings N. V. is actually cheaper at 8. 4x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Air Lease Corporation wins at 0. 79x versus GATX Corporation's 1. 08x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, AerCap Holdings N.

V. (AER) delivered a total return of +171. 5%, compared to -40. 1% for Caris Life Sciences, Inc. (CAI). Over 10 years, the gap is even starker: GATX returned +354. 0% versus CAI's -40. 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), Air Lease Corporation (AL) is the lower-risk stock at 0.

33β versus Firefly Aerospace Inc. 's 2. 90β — meaning FLY is approximately 769% more volatile than AL relative to the S&P 500. On balance sheet safety, Firefly Aerospace Inc. (FLY) carries a lower debt/equity ratio of 26% versus 4% for GATX Corporation — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Firefly Aerospace Inc.

(FLY) is pulling ahead at 163. 0% versus 2. 4% for AerCap Holdings N. V. (AER). On earnings-per-share growth, the picture is similar: Air Lease Corporation grew EPS 179. 0% year-over-year, compared to -161. 0% for Firefly Aerospace Inc.. Over a 3-year CAGR, CAI leads at 46. 5% 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.

AerCap Holdings N.

V. (AER) is the more profitable company, earning 45. 8% net margin versus -186. 6% for Firefly Aerospace Inc. — meaning it keeps 45. 8% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: AER leads at 51. 9% versus -154. 3% for FLY. At the gross margin level — before operating expenses — CAI leads at 66. 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, Air Lease Corporation (AL) is the more undervalued stock at a PEG of 0. 79x versus GATX Corporation's 1. 08x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, AerCap Holdings N. V. (AER) trades at 8. 4x forward P/E versus 140. 6x for Caris Life Sciences, Inc. — 132. 2x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for CAI: 70. 6% to $28. 60.

In this comparison, GATX (1.

4% yield), AL (1. 3% yield), AER (0. 8% yield), FLY (0. 2% yield) pay a dividend. CAI does not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Air Lease Corporation (AL) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0.

33), 1. 3% yield, +140. 2% 10Y return). Firefly Aerospace Inc. (FLY) carries a higher beta of 2. 90 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (AL: +140. 2%, FLY: -34. 8%), 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 (AL (Industrials) and GATX (Industrials) and AER (Industrials) and CAI (Healthcare) and FLY (Industrials)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: AL is a small-cap deep-value stock; GATX is a small-cap quality compounder stock; AER is a mid-cap deep-value stock; CAI is a small-cap high-growth stock; FLY is a small-cap high-growth stock. AL, GATX, AER pay a dividend while CAI, FLY 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.