Constellium SE

CSTM

Aluminum · Basic Materials

Price

$28.12

-0.41 (-1.44%)

Market Cap

$3.83B

Winston Score

Winston is curious

Mixed quality — meaningful strengths and weaknesses.

Share count falling — buybacks

−3.6% over 4y

The company has reduced its share count over this period, returning value to shareholders through buybacks.

Diluted shares outstanding: 147.2M (2021) → 141.9M (2025)

Constellium SE is a European company that turns raw aluminum into finished metal products used in cars, airplanes, and food and beverage packaging. Its main customers are automakers, aerospace companies like Airbus and Boeing, and packaging manufacturers. Constellium is one of the larger specialty aluminum rollers and extruders in the world, known for making high-strength aluminum parts that help reduce vehicle and aircraft weight.

The company earns revenue by selling aluminum products by volume, with prices tied partly to the underlying cost of aluminum metal plus a conversion fee for processing. Constellium operates plants across Europe and North America, generating roughly $8 billion in annual revenue. Its competitive edge comes from long-term contracts with major aerospace and automotive customers and technical expertise in specialized alloys that are hard to replicate quickly. The key growth driver is rising demand for lightweight aluminum in electric vehicles, while the main risk is exposure to volatile aluminum prices and a cyclical auto and aerospace market.

Winston Score History

Growth Profile

For growth stock investors

When traditional metrics don't capture the full picture, these are the signals growth stock investors use instead.

Revenue Growth

+14.9% YoY

YoY Growth Rate

Steady revenue growth

EPS Growth

+425.0% YoY

YoY Growth Rate

Strong earnings growth

R&D Spend

$51M/ year

↑ Rising (+8% vs prior year)

0.6% of revenue

Below sector average (3%)

R&D investment increasing — building for the future

Insider Activity

8.8%ownership

→ Flat

Insiders holding steady — not selling despite ability to

Cash Position

Cash flow positive

$143M cash & investments

Quarterly Free Cash Flow

↓ Burn rate worsening

Company generates more cash than it spends — no dilution risk from fundraising

Growth + cash flow

Constellium SE is a rare growth stock that's already generating positive cash flow while growing at 15%. The Winston Score doesn't fully credit this transition from "burner" to "earner."

The Winston Score above measures business quality today. Growth stocks often score lower because they invest in the future rather than maximising current profits. These metrics show what matters most for evaluating that future.

Score breakdown

Every number that matters to educated investors.

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Quality

Gross Margin

17.1%

Thin — 17.1% gross margin

Operating Margin

9.3%

Modest — 9.3% operating margin

ROCE

7.4%

Weak — 7.4% return on capital

ROIC between 5% and 15%. They earn 5 to 15 cents back per year on every dollar invested.

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Growth

Sales YoY

+30.1%

Fast-growing sales (30.1% YoY)

EPS YoY

+490.4%

Earnings growing fast (490.4% YoY)

Earnings growing 25%+ a year. The compounder zone.

EPS Consistency

6/8 quarters

Earnings grew in most of the last 8 quarters

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Cash Flow

Cash Conversion

116%

Turns 116% of profit into real cash

FCF Margin

1.9%

Thin free cash flow (1.9%)

FCF margin between 0% and 10%. Some cash from sales, but not a lot.

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Stability

Debt / Equity

1.76

Elevated debt (1.76)

Interest Cover

6.82x

Adequate interest coverage (6.8x)

Interest coverage between 3 and 8. Profits cover interest several times over.

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Valuation

P/E Ratio (TTM)

8.8x

Attractive valuation — P/E 8.8

P/E under 10. The price tag is small relative to last year's profit.

P/E vs Forward

-1.3

SLOWING

Earnings expected to fall — forward P/E higher than today

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Dividends

Not applicable for this business.

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