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Side-by-side financial comparison of AerCap Holdings N.V. (AER) and CONSTELLIUM SE (CSTM). Click either name above to swap in a different company.

CONSTELLIUM SE is the larger business by last-quarter revenue ($2.2B vs $1.9B, roughly 1.2× AerCap Holdings N.V.). AerCap Holdings N.V. runs the higher net margin — 66.7% vs 5.1%, a 61.7% gap on every dollar of revenue.

AerCap Holdings N.V. is an Irish-American aviation leasing company headquartered in Dublin, Ireland, with offices around the world. AerCap is listed on the NYSE with the ticker 'AER'. It became the largest aviation leasing company in the world following the acquisition of ILFC in 2014, and GECAS from GE in 2021, for over $30 billion.

Constellium SE is an American-Swiss, French-based global manufacturer of aluminium rolled products, extruded products, and structural parts based on a large variety of advanced alloys. Constellium's C-TEC research center has been credited for advancing technology in the field of advanced aluminium alloy. Constellium primarily serves the aerospace, automotive, and packaging sectors. Large clients include Mercedes-Benz, Audi, BMW, Fiat Chrysler Automotive, Ford, Airbus, Boeing, and Bombardier.

AER vs CSTM — Head-to-Head

Bigger by revenue
CSTM
CSTM
1.2× larger
CSTM
$2.2B
$1.9B
AER
Higher net margin
AER
AER
61.7% more per $
AER
66.7%
5.1%
CSTM

Income Statement — Q2 FY2025 vs Q4 FY2025

Metric
AER
AER
CSTM
CSTM
Revenue
$1.9B
$2.2B
Net Profit
$1.3B
$112.0M
Gross Margin
Operating Margin
73.1%
7.5%
Net Margin
66.7%
5.1%
Revenue YoY
-3.6%
Net Profit YoY
181.0%
EPS (diluted)
$7.09
$0.79

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
AER
AER
CSTM
CSTM
Q4 25
$2.2B
Q3 25
$2.2B
Q2 25
$1.9B
$2.1B
Q1 25
$2.0B
Q2 24
$2.0B
$1.9B
Q2 23
$1.9B
Q2 22
$1.7B
Net Profit
AER
AER
CSTM
CSTM
Q4 25
$112.0M
Q3 25
$88.0M
Q2 25
$1.3B
$36.0M
Q1 25
$37.0M
Q2 24
$448.2M
$76.0M
Q2 23
$492.9M
Q2 22
$339.8M
Operating Margin
AER
AER
CSTM
CSTM
Q4 25
7.5%
Q3 25
5.8%
Q2 25
73.1%
2.7%
Q1 25
3.1%
Q2 24
25.1%
5.4%
Q2 23
28.0%
Q2 22
21.4%
Net Margin
AER
AER
CSTM
CSTM
Q4 25
5.1%
Q3 25
4.1%
Q2 25
66.7%
1.7%
Q1 25
1.9%
Q2 24
22.9%
3.9%
Q2 23
25.6%
Q2 22
20.3%
EPS (diluted)
AER
AER
CSTM
CSTM
Q4 25
$0.79
Q3 25
$0.62
Q2 25
$7.09
$0.25
Q1 25
$0.26
Q2 24
$2.28
$0.51
Q2 23
$2.12
Q2 22
$1.40

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
AER
AER
CSTM
CSTM
Cash + ST InvestmentsLiquidity on hand
$2.7B
$120.0M
Total DebtLower is stronger
$46.1B
$1.9B
Stockholders' EquityBook value
$17.9B
$952.0M
Total Assets
$73.6B
$5.4B
Debt / EquityLower = less leverage
2.57×
2.00×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AER
AER
CSTM
CSTM
Q4 25
$120.0M
Q3 25
$122.0M
Q2 25
$2.7B
$133.0M
Q1 25
$118.0M
Q2 24
$1.4B
Q2 23
$1.2B
Q2 22
$1.2B
Total Debt
AER
AER
CSTM
CSTM
Q4 25
$1.9B
Q3 25
$2.0B
Q2 25
$46.1B
$2.0B
Q1 25
$1.9B
Q2 24
$45.7B
Q2 23
$46.3B
Q2 22
$47.9B
Stockholders' Equity
AER
AER
CSTM
CSTM
Q4 25
$952.0M
Q3 25
$845.0M
Q2 25
$17.9B
$780.0M
Q1 25
$745.0M
Q2 24
$17.0B
$796.0M
Q2 23
$16.3B
Q2 22
$15.0B
Total Assets
AER
AER
CSTM
CSTM
Q4 25
$5.4B
Q3 25
$5.4B
Q2 25
$73.6B
$5.4B
Q1 25
$5.2B
Q2 24
$71.1B
Q2 23
$69.9B
Q2 22
$69.7B
Debt / Equity
AER
AER
CSTM
CSTM
Q4 25
2.00×
Q3 25
2.34×
Q2 25
2.57×
2.53×
Q1 25
2.56×
Q2 24
2.69×
Q2 23
2.84×
Q2 22
3.19×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
AER
AER
CSTM
CSTM
Operating Cash FlowLast quarter
$218.0M
Free Cash FlowOCF − Capex
$109.0M
FCF MarginFCF / Revenue
5.0%
Capex IntensityCapex / Revenue
5.0%
Cash ConversionOCF / Net Profit
1.95×
TTM Free Cash FlowTrailing 4 quarters
$159.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AER
AER
CSTM
CSTM
Q4 25
$218.0M
Q3 25
$99.0M
Q2 25
$114.0M
Q1 25
$58.0M
Q2 24
$138.0M
Q2 23
Q2 22
Free Cash Flow
AER
AER
CSTM
CSTM
Q4 25
$109.0M
Q3 25
$24.0M
Q2 25
$37.0M
Q1 25
$-11.0M
Q2 24
$54.0M
Q2 23
Q2 22
FCF Margin
AER
AER
CSTM
CSTM
Q4 25
5.0%
Q3 25
1.1%
Q2 25
1.8%
Q1 25
-0.6%
Q2 24
2.8%
Q2 23
Q2 22
Capex Intensity
AER
AER
CSTM
CSTM
Q4 25
5.0%
Q3 25
3.5%
Q2 25
3.7%
Q1 25
3.5%
Q2 24
4.3%
Q2 23
Q2 22
Cash Conversion
AER
AER
CSTM
CSTM
Q4 25
1.95×
Q3 25
1.13×
Q2 25
3.17×
Q1 25
1.57×
Q2 24
1.82×
Q2 23
Q2 22

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

AER
AER

Segment breakdown not available.

CSTM
CSTM

Packaging Rolled Products$1.0B46%
Automotive Rolled Products$318.0M14%
Aerospace Rolled Products$270.0M12%
Transportation Industry Defense And Other Rolled Products$232.0M11%
Automotive Extruded Products$220.0M10%
Other Extruded Products$132.0M6%
Specialty And Other Thin Rolled Products$22.0M1%

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