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Side-by-side financial comparison of CONSTELLIUM SE (CSTM) and MARKEL GROUP INC. (MKL). Click either name above to swap in a different company.

MARKEL GROUP INC. is the larger business by last-quarter revenue ($3.6B vs $2.2B, roughly 1.6× CONSTELLIUM SE). MARKEL GROUP INC. runs the higher net margin — 16.1% vs 5.1%, a 11.0% gap on every dollar of revenue. MARKEL GROUP INC. produced more free cash flow last quarter ($599.1M vs $109.0M).

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.

Markel Group Inc. is a group of companies headquartered in Richmond, Virginia, and originally founded in 1930 as an insurance company.

CSTM vs MKL — Head-to-Head

Bigger by revenue
MKL
MKL
1.6× larger
MKL
$3.6B
$2.2B
CSTM
Higher net margin
MKL
MKL
11.0% more per $
MKL
16.1%
5.1%
CSTM
More free cash flow
MKL
MKL
$490.1M more FCF
MKL
$599.1M
$109.0M
CSTM

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
CSTM
CSTM
MKL
MKL
Revenue
$2.2B
$3.6B
Net Profit
$112.0M
$576.8M
Gross Margin
Operating Margin
7.5%
22.2%
Net Margin
5.1%
16.1%
Revenue YoY
-6.9%
Net Profit YoY
5.0%
EPS (diluted)
$0.79
$48.22

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
CSTM
CSTM
MKL
MKL
Q4 25
$2.2B
$3.6B
Q3 25
$2.2B
$3.9B
Q2 25
$2.1B
$4.6B
Q1 25
$2.0B
$3.4B
Q4 24
$3.8B
Q3 24
$4.6B
Q2 24
$1.9B
$3.7B
Q1 24
$4.5B
Net Profit
CSTM
CSTM
MKL
MKL
Q4 25
$112.0M
$576.8M
Q3 25
$88.0M
$751.3M
Q2 25
$36.0M
$657.1M
Q1 25
$37.0M
$121.7M
Q4 24
$549.2M
Q3 24
$905.0M
Q2 24
$76.0M
$267.7M
Q1 24
$1.0B
Operating Margin
CSTM
CSTM
MKL
MKL
Q4 25
7.5%
22.2%
Q3 25
5.8%
25.7%
Q2 25
2.7%
24.1%
Q1 25
3.1%
8.3%
Q4 24
15.5%
Q3 24
29.7%
Q2 24
5.4%
11.1%
Q1 24
29.9%
Net Margin
CSTM
CSTM
MKL
MKL
Q4 25
5.1%
16.1%
Q3 25
4.1%
19.1%
Q2 25
1.7%
14.3%
Q1 25
1.9%
3.6%
Q4 24
14.3%
Q3 24
19.6%
Q2 24
3.9%
7.2%
Q1 24
23.0%
EPS (diluted)
CSTM
CSTM
MKL
MKL
Q4 25
$0.79
$48.22
Q3 25
$0.62
$59.25
Q2 25
$0.25
$49.67
Q1 25
$0.26
$12.08
Q4 24
$39.02
Q3 24
$66.25
Q2 24
$0.51
$18.62
Q1 24
$75.43

Balance Sheet & Financial Strength

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

Metric
CSTM
CSTM
MKL
MKL
Cash + ST InvestmentsLiquidity on hand
$120.0M
$4.0B
Total DebtLower is stronger
$1.9B
$4.3B
Stockholders' EquityBook value
$952.0M
$18.6B
Total Assets
$5.4B
$68.9B
Debt / EquityLower = less leverage
2.00×
0.23×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CSTM
CSTM
MKL
MKL
Q4 25
$120.0M
$4.0B
Q3 25
$122.0M
$4.0B
Q2 25
$133.0M
$3.7B
Q1 25
$118.0M
$4.2B
Q4 24
$3.7B
Q3 24
$3.9B
Q2 24
$3.5B
Q1 24
$3.6B
Total Debt
CSTM
CSTM
MKL
MKL
Q4 25
$1.9B
$4.3B
Q3 25
$2.0B
$4.3B
Q2 25
$2.0B
$4.4B
Q1 25
$1.9B
$4.4B
Q4 24
$4.3B
Q3 24
$4.4B
Q2 24
$4.4B
Q1 24
$3.9B
Stockholders' Equity
CSTM
CSTM
MKL
MKL
Q4 25
$952.0M
$18.6B
Q3 25
$845.0M
$18.0B
Q2 25
$780.0M
$17.3B
Q1 25
$745.0M
$17.1B
Q4 24
$16.9B
Q3 24
$17.0B
Q2 24
$796.0M
$15.9B
Q1 24
$15.7B
Total Assets
CSTM
CSTM
MKL
MKL
Q4 25
$5.4B
$68.9B
Q3 25
$5.4B
$67.4B
Q2 25
$5.4B
$66.8B
Q1 25
$5.2B
$64.6B
Q4 24
$61.9B
Q3 24
$62.3B
Q2 24
$59.7B
Q1 24
$57.3B
Debt / Equity
CSTM
CSTM
MKL
MKL
Q4 25
2.00×
0.23×
Q3 25
2.34×
0.24×
Q2 25
2.53×
0.25×
Q1 25
2.56×
0.26×
Q4 24
0.26×
Q3 24
0.26×
Q2 24
0.28×
Q1 24
0.25×

Cash Flow & Capital Efficiency

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

Metric
CSTM
CSTM
MKL
MKL
Operating Cash FlowLast quarter
$218.0M
$662.2M
Free Cash FlowOCF − Capex
$109.0M
$599.1M
FCF MarginFCF / Revenue
5.0%
16.7%
Capex IntensityCapex / Revenue
5.0%
1.8%
Cash ConversionOCF / Net Profit
1.95×
1.15×
TTM Free Cash FlowTrailing 4 quarters
$159.0M
$2.6B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CSTM
CSTM
MKL
MKL
Q4 25
$218.0M
$662.2M
Q3 25
$99.0M
$1.2B
Q2 25
$114.0M
$504.4M
Q1 25
$58.0M
$376.2M
Q4 24
$493.9M
Q3 24
$890.8M
Q2 24
$138.0M
$578.6M
Q1 24
$630.7M
Free Cash Flow
CSTM
CSTM
MKL
MKL
Q4 25
$109.0M
$599.1M
Q3 25
$24.0M
$1.2B
Q2 25
$37.0M
$453.8M
Q1 25
$-11.0M
$335.5M
Q4 24
$420.0M
Q3 24
$838.9M
Q2 24
$54.0M
$521.4M
Q1 24
$558.7M
FCF Margin
CSTM
CSTM
MKL
MKL
Q4 25
5.0%
16.7%
Q3 25
1.1%
29.6%
Q2 25
1.8%
9.9%
Q1 25
-0.6%
9.9%
Q4 24
10.9%
Q3 24
18.2%
Q2 24
2.8%
14.1%
Q1 24
12.5%
Capex Intensity
CSTM
CSTM
MKL
MKL
Q4 25
5.0%
1.8%
Q3 25
3.5%
1.3%
Q2 25
3.7%
1.1%
Q1 25
3.5%
1.2%
Q4 24
1.9%
Q3 24
1.1%
Q2 24
4.3%
1.5%
Q1 24
1.6%
Cash Conversion
CSTM
CSTM
MKL
MKL
Q4 25
1.95×
1.15×
Q3 25
1.13×
1.62×
Q2 25
3.17×
0.77×
Q1 25
1.57×
3.09×
Q4 24
0.90×
Q3 24
0.98×
Q2 24
1.82×
2.16×
Q1 24
0.62×

Financial Flow Comparison

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

Revenue Breakdown by Segment

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%

MKL
MKL

Industrial$1.6B45%
Consumer And Other$958.3M27%
Financial$737.0M21%
Other$198.8M6%
Corporate Operations$52.0M1%
Revenue From Contract With Customer$10.5M0%

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