AER vs. CMI: AerCap vs. Cummins Stock Comparison

November 11, 2026

How do AerCap (AER) and Cummins (CMI) 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 Cummins (CMI) both fall under the Capital Goods industry group, but AER is classified in Trading Companies & Distributors while CMI is classified in Machinery.

Company profile comparison for AerCap (AER) and Cummins (CMI)
Profile Item	AER	CMI
Name	AerCap Holdings N.V.	Cummins Inc.
Country/Region	Ireland	United States
GICS Sector	Industrials	Industrials
GICS Industry Group	Capital Goods	Capital Goods
GICS Industry	Trading Companies & Distributors	Machinery
GICS Sub-Industry	Trading Companies & Distributors	Construction Machinery & Heavy Transportation Equipment
Market Capitalization	25.76 billion USD	61.69 billion USD
Currency	USD	USD
Exchange	NYSE	NYSE
Listing Date	November 21, 2006	February 21, 1973
Security Type	Common Stock	Common Stock

Price Performance

Cumulative Growth

AER

CMI

GSPC

AerCap (AER) vs. Cummins (CMI), 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 Cummins (CMI). Returns over one year are annualized.

Calendar-Year Returns

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

Performance Metrics

Price performance metrics for AerCap (AER) and Cummins (CMI)
Metric	AER	CMI
Total Return (1Y)	32.17%	-0.52%
Total Return (3Y, Annualized)	39.43%	31.79%
Total Return (5Y, Annualized)	21.06%	17.12%

Risk Profile

Drawdown History

AER

CMI

GSPC

AerCap (AER) vs. Cummins (CMI), 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 Cummins (CMI). Each bar is the share of months whose return fell in that 5% bucket.

Risk Metrics

Risk profile metrics for AerCap (AER) and Cummins (CMI)
Metric	AER	CMI
Volatility (1Y, Annualized)	26.10%	36.83%
Beta (5Y)	0.95	1.26
Max Drawdown (5Y)	-44.81%	-38.12%
Avg. Volume (3M)	1.13M	1.14M

Risk-Adjusted Performance

Risk-Return Positioning

AER and CMI 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 Cummins (CMI)
Metric	AER	CMI
Sharpe Ratio (1Y)	1.07	-0.13
Sortino Ratio (1Y)	1.59	-0.18

Profitability

ROE (TTM)

Cummins (CMI) at 25.05% sits in the top ROE quartile, while AerCap (AER) at 17.00% is closer to the peer norm — stronger capital efficiency for CMI.

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%

CMI

Capital Goods industry group

25.05%

Max: 40.55%
CMI: 25.05%
Q3: 19.29%
Median: 12.12%
Q1: 4.08%
Min: -17.12%

AerCap (AER) vs. Cummins (CMI): A comparison of their ROE against the Capital Goods industry group benchmark.

Net Margin (TTM)

AerCap (AER) at 34.47% converts revenue to bottom-line profit above its industry’s benchmark range, while Cummins (CMI) at 9.26% keeps roughly the typical share for its industry.

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%

CMI

Capital Goods industry group

9.26%

Max: 27.47%
Q3: 12.10%
CMI: 9.26%
Median: 6.30%
Q1: 1.40%
Min: -12.89%

AerCap (AER) vs. Cummins (CMI): 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 Cummins (CMI) at 13.95% 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%

CMI

Capital Goods industry group

13.95%

Max: 36.60%
Q3: 18.33%
CMI: 13.95%
Median: 11.12%
Q1: 5.14%
Min: -12.63%

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

Profitability Metrics

Profitability metrics for AerCap (AER) and Cummins (CMI)
Metric	AER	CMI
ROE (TTM)	17.00%	25.05%
ROA (TTM)	4.52%	7.60%
Net Margin (TTM)	34.47%	9.26%
Operating Margin (TTM)	62.55%	13.95%
Gross Margin (TTM)	63.02%	26.32%

Growth

Revenue Growth

AerCap (AER) at 6.50% is around its peer norm for revenue growth, while Cummins (CMI) at -1.27% drops into the bottom quartile, signaling weaker demand or pricing momentum.

AerCap (AER) vs. Cummins (CMI): A comparison of their Revenue Growth across different time periods.

EPS Growth

AerCap (AER) at 97.41% sits in the top EPS growth quartile, while Cummins (CMI) at -27.74% is in the bottom quartile, showing a clear gap in earnings momentum.

AerCap (AER) vs. Cummins (CMI): A comparison of their EPS Growth across different time periods.

Growth Metrics

Growth metrics for AerCap (AER) and Cummins (CMI)
Metric	AER	CMI
Revenue Growth (YoY)	6.50%	-1.27%
Revenue Growth (3Y CAGR)	6.69%	6.25%
EPS Growth (YoY)	97.41%	-27.74%
EPS Growth (3Y CAGR)	--	10.68%

Financial Strength

Current Ratio (MRQ)

Both AerCap (AER) at 1.45 and Cummins (CMI) at 1.74 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

CMI

Capital Goods industry group

1.74

Max: 5.22
Q3: 2.95
Median: 2.08
CMI: 1.74
Q1: 1.43
Min: 0.36

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

Debt / Equity (MRQ)

Cummins (CMI) at 0.52 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

CMI

Capital Goods industry group

0.52

Max: 2.33
Q3: 1.12
Median: 0.60
CMI: 0.52
Q1: 0.29
Min: 0.00

AerCap (AER) vs. Cummins (CMI): 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 Cummins (CMI)
Metric	AER	CMI
Current Ratio (MRQ)	1.45	1.74
Debt / Equity (MRQ)	2.33	0.52
Net Debt / EBITDA	7.77	0.62

Dividends

Dividend Yield (TTM)

Cummins (CMI) at 1.83% delivers top-quartile income for its industry, while AerCap (AER) at 0.96% pays a more typical yield — both are credible income propositions, CMI the richer one.

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%

CMI

Capital Goods industry group

1.83%

Max: 2.66%
CMI: 1.83%
Q3: 1.14%
Median: 0.24%
Q1: 0.00%
Min: 0.00%

AerCap (AER) vs. Cummins (CMI): 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 Cummins (CMI) at 34.21% 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%

CMI

Capital Goods industry group

34.21%

Max: 67.39%
CMI: 34.21%
Q3: 28.02%
Median: 6.86%
Q1: 0.00%
Min: 0.00%

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

Dividend Metrics

Dividend metrics for AerCap (AER) and Cummins (CMI)
Metric	AER	CMI
Dividend Yield (TTM)	0.96%	1.83%
Dividend Payout Ratio (TTM)	7.52%	34.21%

Valuation

P/E Ratio (TTM)

Both AerCap (AER) at 8.67 and Cummins (CMI) at 18.78 sit in the cheaper earnings-multiple quartile for P/E ratio, with the market paying less for a dollar of trailing earnings than it pays for typical peers.

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

CMI

Capital Goods industry group

18.78

Max: 59.38
Q3: 35.92
Median: 25.41
Q1: 19.47
CMI: 18.78
Min: 3.03

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

P/S Ratio (TTM)

On P/S ratio, both AerCap (AER) at 2.84 and Cummins (CMI) at 1.72 are priced roughly in line with their industries — neither looks cheap nor rich on a sales basis.

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

CMI

Capital Goods industry group

1.72

Max: 7.54
Q3: 3.76
Median: 2.15
CMI: 1.72
Q1: 1.03
Min: 0.03

AerCap (AER) vs. Cummins (CMI): 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 against book while Cummins (CMI) at 4.63 is valued near its industry’s middle — AER is cheaper on assets, though weigh it against ROE and asset quality.

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

CMI

Capital Goods industry group

4.63

Max: 9.66
Q3: 5.00
CMI: 4.63
Median: 3.12
Q1: 1.81
Min: -1.08

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

Valuation Metrics

Valuation metrics for AerCap (AER) and Cummins (CMI)
Metric	AER	CMI
P/E Ratio (TTM)	8.67	18.78
P/S Ratio (TTM)	2.84	1.72
P/B Ratio (MRQ)	1.36	4.63
Free Cash Flow Yield (TTM)	-6.60%	4.06%