AER vs. ROK: AerCap vs. Rockwell Automation Stock Comparison

November 11, 2026

How do AerCap (AER) and Rockwell Automation (ROK) stack up? This page sets them side by side across company profile, performance and risk, profitability, growth, financial strength, dividends, and valuation, with selected fundamentals also measured against each stock's industry-group peers.

Company Profile

AerCap (AER) and Rockwell Automation (ROK) both fall under the Capital Goods industry group, but AER is classified in Trading Companies & Distributors while ROK is classified in Electrical Equipment.

Company profile comparison for AerCap (AER) and Rockwell Automation (ROK)
Profile Item	AER	ROK
Name	AerCap Holdings N.V.	Rockwell Automation Inc.
Country/Region	Ireland	United States
GICS Sector	Industrials	Industrials
GICS Industry Group	Capital Goods	Capital Goods
GICS Industry	Trading Companies & Distributors	Electrical Equipment
GICS Sub-Industry	Trading Companies & Distributors	Electrical Components & Equipment
Market Capitalization	25.76 billion USD	41.82 billion USD
Currency	USD	USD
Exchange	NYSE	NYSE
Listing Date	November 21, 2006	December 31, 1981
Security Type	Common Stock	Common Stock

Price Performance

Cumulative Growth

AER

ROK

GSPC

AerCap (AER) vs. Rockwell Automation (ROK), with S&P 500 (GSPC) for reference: Growth of a $10,000 investment over the past five years. Adjusted for dividends and splits.

Trailing Returns

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Trailing total returns for AerCap (AER) and Rockwell Automation (ROK). Returns over one year are annualized.

Calendar-Year Returns

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Calendar-year total returns for AerCap (AER) and Rockwell Automation (ROK). Each bar is that year's total return, measured year-end to year-end.

Performance Metrics

Price performance metrics for AerCap (AER) and Rockwell Automation (ROK)
Metric	AER	ROK
Total Return (1Y)	32.17%	6.19%
Total Return (3Y, Annualized)	39.43%	16.94%
Total Return (5Y, Annualized)	21.06%	4.86%

Risk Profile

Drawdown History

AER

ROK

GSPC

AerCap (AER) vs. Rockwell Automation (ROK), with S&P 500 (GSPC) for reference: Drawdown from the running peak over the past five years. Each line shows the decline from its prior peak; 0% marks a new high.

Return Distribution

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Distribution of monthly total returns for AerCap (AER) and Rockwell Automation (ROK). Each bar is the share of months whose return fell in that 5% bucket.

Risk Metrics

Risk profile metrics for AerCap (AER) and Rockwell Automation (ROK)
Metric	AER	ROK
Volatility (1Y, Annualized)	26.10%	34.28%
Beta (5Y)	0.95	1.54
Max Drawdown (5Y)	-44.81%	-45.09%
Avg. Volume (3M)	1.13M	799.28K

Risk-Adjusted Performance

Risk-Return Positioning

AER and ROK are plotted by 1-year volatility (risk) and 1-year return. The dashed Capital Allocation Line runs from the risk-free rate through the shared industry median.

Risk-Adjusted Metrics

Risk-adjusted metrics for AerCap (AER) and Rockwell Automation (ROK)
Metric	AER	ROK
Sharpe Ratio (1Y)	1.07	0.06
Sortino Ratio (1Y)	1.59	0.07

Profitability

ROE (TTM)

Rockwell Automation (ROK) at 38.73% sits in the top ROE quartile, while AerCap (AER) at 17.00% is closer to the peer norm — stronger capital efficiency for ROK.

AER

Capital Goods industry group

17.00%

Max: 40.55%
Q3: 19.29%
AER: 17.00%
Median: 12.12%
Q1: 4.08%
Min: -17.12%

ROK

Capital Goods industry group

38.73%

Max: 40.55%
ROK: 38.73%
Q3: 19.29%
Median: 12.12%
Q1: 4.08%
Min: -17.12%

AerCap (AER) vs. Rockwell Automation (ROK): A comparison of their ROE against the Capital Goods industry group benchmark.

Net Margin (TTM)

AerCap (AER) at 34.47% keeps the most of each sales dollar — above its industry’s net margin range — and Rockwell Automation (ROK) at 15.68% also retains a top-quartile share.

AER

Capital Goods industry group

34.47%

AER: 34.47%
Max: 27.47%
Q3: 12.10%
Median: 6.30%
Q1: 1.40%
Min: -12.89%

ROK

Capital Goods industry group

15.68%

Max: 27.47%
ROK: 15.68%
Q3: 12.10%
Median: 6.30%
Q1: 1.40%
Min: -12.89%

AerCap (AER) vs. Rockwell Automation (ROK): A comparison of their net margin against the Capital Goods industry group benchmark.

Operating Margin (TTM)

AerCap (AER) at 62.55% turns sales into operating profit above its industry’s benchmark range, while Rockwell Automation (ROK) at 14.75% operates around its industry’s norm.

AER

Capital Goods industry group

62.55%

AER: 62.55%
Max: 36.60%
Q3: 18.33%
Median: 11.12%
Q1: 5.14%
Min: -12.63%

ROK

Capital Goods industry group

14.75%

Max: 36.60%
Q3: 18.33%
ROK: 14.75%
Median: 11.12%
Q1: 5.14%
Min: -12.63%

AerCap (AER) vs. Rockwell Automation (ROK): A comparison of their operating margin against the Capital Goods industry group benchmark.

Profitability Metrics

Profitability metrics for AerCap (AER) and Rockwell Automation (ROK)
Metric	AER	ROK
ROE (TTM)	17.00%	38.73%
ROA (TTM)	4.52%	9.32%
Net Margin (TTM)	34.47%	15.68%
Operating Margin (TTM)	62.55%	14.75%
Gross Margin (TTM)	63.02%	48.95%

Growth

Revenue Growth

Only one side can be read here: AerCap (AER) reports revenue growth of 6.50%, ranked against its industry; Rockwell Automation (ROK) has no revenue growth figure this period.

AerCap (AER) vs. Rockwell Automation (ROK): A comparison of their Revenue Growth across different time periods.

EPS Growth

Both AerCap (AER) at 97.41% and Rockwell Automation (ROK) at 63.49% sit in the top peer quartile for EPS growth, so each is compounding per-share earnings faster than typical industry peers.

AerCap (AER) vs. Rockwell Automation (ROK): A comparison of their EPS Growth across different time periods.

Growth Metrics

Growth metrics for AerCap (AER) and Rockwell Automation (ROK)
Metric	AER	ROK
Revenue Growth (YoY)	6.50%	--
Revenue Growth (3Y CAGR)	6.69%	--
EPS Growth (YoY)	97.41%	63.49%
EPS Growth (3Y CAGR)	--	1.62%

Financial Strength

Current Ratio (MRQ)

Both AerCap (AER) at 1.45 and Rockwell Automation (ROK) at 2.11 carry current ratio within their industries’ typical mid-ranges, suggesting balanced short-term liquidity relative to peers.

AER

Capital Goods industry group

1.45

Max: 5.22
Q3: 2.95
Median: 2.08
AER: 1.45
Q1: 1.43
Min: 0.36

ROK

Capital Goods industry group

2.11

Max: 5.22
Q3: 2.95
ROK: 2.11
Median: 2.08
Q1: 1.43
Min: 0.36

AerCap (AER) vs. Rockwell Automation (ROK): A comparison of their current ratio against the Capital Goods industry group benchmark.

Debt / Equity (MRQ)

Rockwell Automation (ROK) at 1.00 carries an industry-typical debt-to-equity mix, while AerCap (AER) at 2.33 uses more debt funding than most peers.

AER

Capital Goods industry group

2.33

AER: 2.33
Max: 2.33
Q3: 1.12
Median: 0.60
Q1: 0.29
Min: 0.00

ROK

Capital Goods industry group

1.00

Max: 2.33
Q3: 1.12
ROK: 1.00
Median: 0.60
Q1: 0.29
Min: 0.00

AerCap (AER) vs. Rockwell Automation (ROK): A comparison of their debt-to-equity ratio against the Capital Goods industry group benchmark.

Financial Strength Metrics

Financial strength metrics for AerCap (AER) and Rockwell Automation (ROK)
Metric	AER	ROK
Current Ratio (MRQ)	1.45	2.11
Debt / Equity (MRQ)	2.33	1.00
Net Debt / EBITDA	7.77	1.58

Dividends

Dividend Yield (TTM)

Rockwell Automation (ROK) pays no dividend (yield 0.00%) — it may be reinvesting, using buybacks, or simply not returning cash through dividends. Meanwhile AerCap (AER) reports a yield of 0.96%, ranking against industry peers normally.

AER

Capital Goods industry group

0.96%

Max: 2.66%
Q3: 1.14%
AER: 0.96%
Median: 0.24%
Q1: 0.00%
Min: 0.00%

ROK

Capital Goods industry group

0.00%

Max: 2.66%
Q3: 1.14%
Median: 0.24%
ROK: 0.00%
Q1: 0.00%
Min: 0.00%

AerCap (AER) vs. Rockwell Automation (ROK): A comparison of their dividend yield against the Capital Goods industry group benchmark.

Dividend Payout Ratio (TTM)

AerCap (AER) at 7.52% pays out a band-typical share of earnings, while Rockwell Automation (ROK) at 51.03% distributes more than its industry norm — less retained, thinner cover.

AER

Capital Goods industry group

7.52%

Max: 67.39%
Q3: 28.02%
AER: 7.52%
Median: 6.86%
Q1: 0.00%
Min: 0.00%

ROK

Capital Goods industry group

51.03%

Max: 67.39%
ROK: 51.03%
Q3: 28.02%
Median: 6.86%
Q1: 0.00%
Min: 0.00%

AerCap (AER) vs. Rockwell Automation (ROK): A comparison of their payout ratio against the Capital Goods industry group benchmark.

Dividend Metrics

Dividend metrics for AerCap (AER) and Rockwell Automation (ROK)
Metric	AER	ROK
Dividend Yield (TTM)	0.96%	0.00%
Dividend Payout Ratio (TTM)	7.52%	51.03%

Valuation

P/E Ratio (TTM)

AerCap (AER) at 8.67 sits in the cheaper P/E ratio quartile, while Rockwell Automation (ROK) at 29.97 is closer to its industry’s usual earnings multiple — a discount for AER, though growth and earnings durability still matter.

AER

Capital Goods industry group

8.67

Max: 59.38
Q3: 35.92
Median: 25.41
Q1: 19.47
AER: 8.67
Min: 3.03

ROK

Capital Goods industry group

29.97

Max: 59.38
Q3: 35.92
ROK: 29.97
Median: 25.41
Q1: 19.47
Min: 3.03

AerCap (AER) vs. Rockwell Automation (ROK): A comparison of their P/E ratio against the Capital Goods industry group benchmark.

P/S Ratio (TTM)

AerCap (AER) at 2.84 is priced about in line with its industry on P/S ratio, while Rockwell Automation (ROK) at 4.65 sits in the pricier quartile — ROK costs more per dollar of sales.

AER

Capital Goods industry group

2.84

Max: 7.54
Q3: 3.76
AER: 2.84
Median: 2.15
Q1: 1.03
Min: 0.03

ROK

Capital Goods industry group

4.65

Max: 7.54
ROK: 4.65
Q3: 3.76
Median: 2.15
Q1: 1.03
Min: 0.03

AerCap (AER) vs. Rockwell Automation (ROK): A comparison of their P/S ratio against the Capital Goods industry group benchmark.

P/B Ratio (MRQ)

AerCap (AER) at 1.36 sits in the lower P/B ratio quartile relative to book while Rockwell Automation (ROK) at 11.76 prices above its industry range — a wide valuation gap against assets.

AER

Capital Goods industry group

1.36

Max: 9.66
Q3: 5.00
Median: 3.12
Q1: 1.81
AER: 1.36
Min: -1.08

ROK

Capital Goods industry group

11.76

ROK: 11.76
Max: 9.66
Q3: 5.00
Median: 3.12
Q1: 1.81
Min: -1.08

AerCap (AER) vs. Rockwell Automation (ROK): A comparison of their P/B ratio against the Capital Goods industry group benchmark.

Valuation Metrics

Valuation metrics for AerCap (AER) and Rockwell Automation (ROK)
Metric	AER	ROK
P/E Ratio (TTM)	8.67	29.97
P/S Ratio (TTM)	2.84	4.65
P/B Ratio (MRQ)	1.36	11.76
Free Cash Flow Yield (TTM)	-6.60%	-1.13%