AER vs TDG Stock Comparison

AerCap Holdings and TransDigm Prices as of Oct 26, 2026 Peers: Industry group
AER AerCap Holdings N.V.
$147.86 -0.9% 1M +21.3% 1Y
Market cap
$24.67B
P/E
7.5x
Revenue (TTM)
$8.96B
Div. yield
0.99%
Commercial Aerospace Industrials
8 wins
TDG TransDigm Group INC
$1,129.53 +1.2% 1M -16.9% 1Y
Market cap
$62.44B
P/E
33.9x
Revenue (TTM)
$10.01B
Div. yield
–
Commercial Aerospace Industrials
3 wins

Head to Head

11 decided of 12

AerCap Holdings leads on 8 of the 12 questions below (AerCap Holdings 8, TransDigm 3). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionAERTDGLeader
Larger companyMarket capitalisation $24.67B $62.44B TDG
Cheaper on earningsLower P/E, profitable companies only 7.5x 33.9x AER
Cheaper on forward earningsLower price / next fiscal year consensus EPS 8.3x 25.7x AER
Faster revenue growthRevenue growth, trailing twelve months +12.2% +16.6% TDG
More profitableNet margin, trailing twelve months 37.9% 19.1% AER
Better return on capitalReturn on invested capital 9.1% 15.5% TDG
Less leveragedLower net debt / EBITDA 4.9x 6.1x AER
Higher dividend yieldTrailing dividend yield 0.99% 0.00% –
Better 1-year returnPrice return, last 12 months +21.3% -16.9% AER
Better 5-year returnAnnualised price return, 5 years +19.9%/yr +12.4%/yr AER
Less volatileAnnualised volatility, 1 year 26.9% 27.2% AER
Higher overall scoreMean of the five percentile scores vs peers 68/100 65/100 AER

Percentile Scorecard

AERTDG

Each axis is the mean percentile of its metrics against the company's industry group. 100 is the best in the group, 50 the middle.

Scores by Axis

AxisAERTDG
Valuation 94 #3 of 36 51 #18 of 36
Growth 72 #10 of 33 59 #14 of 33
Profitability 97 #2 of 32 100 #1 of 32
Financial Health 11 #35 of 39 29 #28 of 39
Shareholder Returns 67 #7 of 19 83 #4 of 19
Overall 68 65
  • AER ranked among 39 companies in Aerospace and Defense
  • TDG ranked among 39 companies in Aerospace and Defense

Price Performance

Price return, split-adjusted, before dividends. Click a name to hide or show it.

Returns

PeriodAERTDGSPY
1 month -0.9%+1.2% -0.8%
3 months -2.3%-12.2% +3.5%
6 months +6.6%-2.5% +7.0%
Year to date +2.9%-15.1% +12.2%
1 year +21.3%-16.9% +13.0%
3 years +148.8%+37.9% +86.3%
3 years, per year +35.5%+11.3% +23.1%
5 years +147.6%+79.5% +68.6%
5 years, per year +19.9%+12.4% +11.0%
10 years +259.3%+316.7% +258.0%
10 years, per year +13.6%+15.3% +13.6%

Risk

MeasureAERTDGSPY
Volatility, 1Y 26.9%27.2% 12.7%
Downside volatility, 1Y 25.7%29.0% 12.7%
Beta vs S&P 500, 1Y 0.970.75 1.00
Return / volatility, 1Y 0.79-0.62 1.02
Max drawdown, 5Y -45.1%-33.6% -25.4%
From 52-week high -4.7%-22.1% -1.8%
52-week high $155.22$1,450.00 $779.14
52-week low $121.00$1,076.01 $631.97

Valuation History

Weekly multiples on trailing twelve-month fundamentals. Negative or extreme readings (a loss year, a collapsed denominator) are left out so the chart stays readable.

MultipleAERTDG
P/E now vs peer median 7.5xmedian 21.2x 33.9xmedian 21.2x
P/S now vs peer median 2.8xmedian 2.2x 6.2xmedian 2.2x
EV/EBITDA now vs peer median 7.9xmedian 14.6x 18.4xmedian 14.6x
P/FCF now vs peer median 11.8xmedian 18.9x 32.4xmedian 18.9x
P/B now vs peer median 1.3xmedian 2.1x -6.4xmedian 2.1x
PEG now vs peer median 0.21median 1.50 1.60median 1.50

Financial History

Reported figures by fiscal period, placed on the calendar year (or quarter) each period ended in, so companies with different fiscal years line up.

Trailing twelve monthsAERTDG
Revenue $8.96B $10.01B
Gross profit – $5.96B
Operating income – $4.61B
Net income $3.39B $2.13B
Free cash flow $2.09B $1.93B
EPS (diluted) $19.26 $33.29
Cash & equivalents $1.69B $2.77B
Total debt $42.77B $33.49B
Shares (diluted) 176.12M 57.40M
Enterprise value $18.32B $50.52B

All Metrics

58 metrics · best in bold

Bold marks the best reading: the lowest positive value for multiples, leverage and payout, the highest for everything else. The bar under each value is its percentile against that company's own peers. Hover a value for its rank and the peer median.

Valuation

12 metrics
MetricAERTDG
P/E 7.5x 33.9x
P/FCF 11.8x 32.4x
P/Operating cash flow 4.4x 28.4x
P/S 2.8x 6.2x
P/B 1.3x -6.4x
P/Tangible book 1.3x -4.3x
EV/EBITDA 7.9x 18.4x
EV/EBIT 11.8x 20.2x
EV/Revenue 7.3x 9.3x
EV/FCF 31.5x 48.3x
EV/Operating cash flow 11.7x 42.4x
PEG (3Y EPS CAGR) 0.21 1.60

Growth

14 metrics
MetricAERTDG
Revenue growth (1Y) 12.2% 16.6%
Revenue CAGR (3Y) 6.9% 17.0%
Gross profit growth (1Y) – 16.9%
Gross profit CAGR (3Y) – 17.9%
Operating income growth (1Y) – 16.7%
Operating income CAGR (3Y) – 19.4%
Net income growth (1Y) 15.1% 10.2%
Net income CAGR (3Y) 22.0% 22.8%
EPS growth (1Y) 27.1% 10.5%
EPS CAGR (3Y) 35.5% 21.1%
Operating cash flow growth (1Y) 5.6% 4.5%
Operating cash flow CAGR (3Y) 2.5% 22.8%
Free cash flow growth (1Y) 178.8% 1.1%
Free cash flow CAGR (3Y) 39.0% 22.4%

Profitability

14 metrics
MetricAERTDG
Gross margin – 59.6%
EBITDA margin 93.1% 50.7%
Operating margin – 46.0%
Pretax margin 41.1% 27.4%
Net margin 37.9% 19.1%
FCF margin 23.3% 19.3%
Operating cash flow margin 62.7% 22.0%
Return on equity 18.4% –
Return on assets 4.8% 8.2%
Return on invested capital 9.1% 15.5%
Return on capital employed – 19.6%
Asset turnover 0.1x 0.4x
Cash conversion (OCF / net income) 1.7x 1.0x
Stock comp / revenue 1.5% 1.5%

Financial Health

11 metrics
MetricAERTDG
Debt / assets 60.1% 125.2%
Debt / equity 2.3x -3.4x
Net debt / EBITDA 4.9x 6.1x
Debt / FCF 20.5x 17.4x
Liabilities / assets 74.1% 136.7%
Equity / assets 25.9% -36.7%
Interest coverage 2.9x 2.5x
Current ratio – 3.0x
Quick ratio – 1.9x
Cash ratio – 1.1x
Altman Z-score – 1.72

Shareholder Returns

7 metrics
MetricAERTDG
Dividend yield 1.0% –
Net buyback yield 11.8% 2.7%
Shareholder yield 12.8% 2.7%
Payout ratio (earnings) 6.6% –
Payout ratio (FCF) 10.7% –
Dividend growth (1Y) 15.6% –
Dividend CAGR (3Y) – –

Analyst Estimates

Solid lines are reported fiscal-year results; dashed lines are the consensus for the years ahead. Hover a year for the analysts' high and low, and how each result compared with its estimate.

ConsensusAERTDG
Forward P/E 8.3xFY2026 25.7xFY2026
EPS, next fiscal year $17.88FY2026 $44.01FY2026
EPS growth, next FY +16.3%FY2026 +17.9%FY2026
EPS growth, the year after +4.4% +7.9%
Revenue, next fiscal year $9.13BFY2026 $10.01BFY2026
Revenue growth, next FY +7.2%FY2026 +13.4%FY2026
Revenue growth, the year after -1.1% +24.4%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersAERTDG
Held by institutions 78.7% 93.2%
Institutions holding 689 1,140
Change in shares held, QoQ -5.5% +1.2%
Institutions buying 360 584
Institutions selling 237 367
Buyers to sellers 1.52 1.59

Return Correlation

Daily returns, last 12 months

1.00 means two stocks move in lockstep, 0 that they move independently. Pairs below about 0.5 diversify each other.

AERTDG
AER 1.00 0.39
TDG 0.39 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, AER and TDG?

TransDigm (TDG) is the largest by market capitalisation: AerCap Holdings (AER) $24.67B, TransDigm (TDG) $62.44B.

Which stock is cheaper, AER and TDG?

AerCap Holdings (AER) trades on the lowest price-to-earnings ratio (AerCap Holdings (AER) 7.5x, TransDigm (TDG) 33.9x). On next year's consensus earnings, AerCap Holdings (AER) is cheapest (AerCap Holdings (AER) 8.3x, TransDigm (TDG) 25.7x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

TransDigm (TDG) grew revenue fastest over the trailing twelve months: AerCap Holdings (AER) +12.2%, TransDigm (TDG) +16.6%.

Which company is more profitable?

AerCap Holdings (AER) has the highest net margin (AerCap Holdings (AER) 37.9%, TransDigm (TDG) 19.1%). On return on invested capital, TransDigm (TDG) leads (AerCap Holdings (AER) 9.1%, TransDigm (TDG) 15.5%).

Which stock has performed better?

Over the past year AerCap Holdings (AER) returned the most: AerCap Holdings (AER) +21.3%, TransDigm (TDG) -16.9%. Over five years, AerCap Holdings (AER) compounded fastest (AerCap Holdings (AER) +19.9%/yr, TransDigm (TDG) +12.4%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: AerCap Holdings (AER) 0.99%, TransDigm (TDG) 0.00%. TransDigm (TDG) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, AerCap Holdings (AER) has been the steadiest (AerCap Holdings (AER) 26.9%, TransDigm (TDG) 27.2%). Volatility measures how widely the price swings, not the risk of the business.

Do AER and TDG move together?

Their daily returns over the past year have a correlation of 0.39, a weak relationship. Holding both diversifies more than two closely linked stocks would.

Which is the better stock, AER and TDG?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, AerCap Holdings (AER) leads on 8. Business Quant does not give investment advice; use the comparison as a starting point for your own research.

Data from SEC filings, exchange prices and consensus estimates, via Business Quant. Percentile scores compare each company with its own peer group, so two companies' scores are each relative to different peers unless you rank against the whole market. Price returns exclude dividends. Nothing on this page is investment advice.