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Constellium SE (CSTM) Stock Fundamental Analysis & AI Rating 2026

CSTM NYSE Secondary Smelting & Refining of Nonferrous Metals CIK: 0001563411
Recently Updated • Analysis: May 6, 2026 • SEC Data: 2026-03-31
Combined AI Rating
HOLD
70% Confidence
STRONG AGREEMENT
HOLD
62% Conf
HOLD
77% Conf

📊 CSTM Key Takeaways

Revenue: $2.5B
Net Margin: 8.1%
Free Cash Flow: $1.0M
Current Ratio: 1.39x
Debt/Equity: 1.73x
EPS: $1.42
AI Rating: HOLD with 62% confidence
Constellium SE (CSTM) receives a HOLD rating with 70% confidence from our AI fundamental analysis based on SEC 10-K filings. With revenue of $2.5B, net profit margin of 8.1%, and return on equity (ROE) of 17.8%, Constellium SE demonstrates mixed fundamentals in the Materials sector. Below is our complete CSTM stock analysis for 2026.

Is Constellium SE (CSTM) a Good Investment?

Claude

Constellium demonstrates solid operational performance with 15.2% revenue growth and strong operating margins (11.1%), supported by exceptional 17.8% ROE and robust interest coverage (10.5x). However, the company faces critical cash flow concerns: despite $199M net income, it generates only $1M free cash flow, suggesting significant working capital strain and questionable earnings quality that limits financial flexibility given 1.73x leverage.

ChatGPT

Constellium shows solid top-line momentum and improved operating earnings, with revenue up 15.2% and operating income reaching $408 million. However, overall profit quality remains mixed because net margin and free cash flow margin are still thin, while leverage is elevated and liquidity is only adequate for a cyclical industrial business.

Why Buy Constellium SE Stock? CSTM Key Strengths

Claude
  • + Strong revenue growth of 15.2% YoY demonstrates market demand
  • + Robust operating margins of 11.1% and ROE of 17.8% indicate operational efficiency
  • + Excellent interest coverage of 10.5x provides substantial debt service capacity
  • + Moderate leverage (1.73x Debt/Equity) is manageable for industrial sector
ChatGPT
  • + Strong revenue growth of 15.2% YoY with positive operating leverage
  • + Healthy operating cash flow generation of $489 million and positive free cash flow
  • + Good returns on equity and assets, indicating efficient use of capital despite a tough industry backdrop

CSTM Stock Risks: Constellium SE Investment Risks

Claude
  • ! Critical cash flow deterioration: $1M FCF on $199M net income signals working capital stress or earnings quality issues
  • ! Low quick ratio (0.60x) indicates potential liquidity pressure and inventory-dependent operations
  • ! Operating cash flow of only $73M represents just 37% of net income, suggesting significant accrual buildup
  • ! Modest cash position ($143M) insufficient to support $1.9B debt without operational cash generation
ChatGPT
  • ! High leverage with debt/equity of 2.00x and only moderate interest coverage of 4.0x
  • ! Thin net margin of 3.2% and free cash flow margin of 1.9% leave limited cushion if demand weakens
  • ! Quick ratio of 0.51x suggests reliance on inventory and working capital execution for near-term liquidity

Key Metrics to Watch

Claude
  • * Free cash flow trend and operating cash flow conversion rate
  • * Working capital changes and days sales outstanding
  • * Debt reduction pace relative to FCF generation
ChatGPT
  • * Free cash flow margin and capital expenditure intensity
  • * Debt reduction progress and interest coverage

Constellium SE (CSTM) Financial Metrics & Key Ratios

Revenue
$2.5B
Net Income
$199.0M
EPS (Diluted)
$1.42
Free Cash Flow
$1.0M
Total Assets
$5.8B
Cash Position
$143.0M

💡 AI Analyst Insight

The relatively thin 0.0% FCF margin may limit capital allocation flexibility.

CSTM Profit Margin, ROE & Profitability Analysis

Gross Margin N/A
Operating Margin 11.1%
Net Margin 8.1%
ROE 17.8%
ROA 3.4%
FCF Margin 0.0%

CSTM vs Materials Sector: How Constellium SE Compares

How Constellium SE compares to Materials sector averages

Net Margin
CSTM 8.1%
vs
Sector Avg 10.0%
CSTM Sector
ROE
CSTM 17.8%
vs
Sector Avg 14.0%
CSTM Sector
Current Ratio
CSTM 1.4x
vs
Sector Avg 1.6x
CSTM Sector
Debt/Equity
CSTM 1.7x
vs
Sector Avg 0.6x
CSTM Sector

Sector benchmarks are approximate industry averages. Actual sector performance may vary.

Is Constellium SE Stock Overvalued? CSTM Valuation Analysis 2026

Based on fundamental analysis, Constellium SE has mixed fundamental signals relative to the Materials sector in 2026.

Return on Equity
17.8%
Sector avg: 14%
Net Profit Margin
8.1%
Sector avg: 10%
Revenue Growth
N/A
Year-over-year
Debt/Equity
1.73x
Sector avg: 0.6x

Note: This is a fundamental analysis based on SEC filings. For P/E ratio, price targets, and market-based valuation, consult financial data providers. This is not investment advice.

Constellium SE Balance Sheet: CSTM Debt, Cash & Liquidity

Current Ratio
1.39x
Quick Ratio
0.60x
Debt/Equity
1.73x
Debt/Assets
80.6%
Interest Coverage
10.46x
Long-term Debt
$1.9B

CSTM Revenue & Earnings Growth: 5-Year Financial Trend

CSTM 5-year financial data: Year 2024: Revenue $8.5B, Net Income $308.0M, EPS $2.10. Year 2025: Revenue $8.4B, Net Income $152.0M, EPS $1.03.
Revenue
Net Income
EPS (right axis)

5-Year Trend Summary: Constellium SE's revenue has remained relatively flat over the 5-year period, with a 1% decline. The most recent EPS of $1.03 reflects profitable operations.

CSTM Revenue Growth, EPS Growth & YoY Performance

Revenue Growth
N/A
Year-over-year
Net Income Growth
N/A
Year-over-year
EPS Growth
N/A
Earnings per share
FCF Margin
0.0%
Free cash flow / Revenue

CSTM Quarterly Earnings & Performance

Quarterly financial performance data for Constellium SE including revenue, net income, and earnings per share.
Quarter Revenue Net Income EPS
Q1 2026 $2.0B $37.0M $0.26
Q3 2025 $1.8B $7.0M $0.05
Q2 2025 $1.9B $36.0M $0.25
Q1 2025 $1.9B $21.0M $0.14

Data sourced from SEC EDGAR 10-Q quarterly filings. Figures may represent quarterly or cumulative values.

Constellium SE Dividends, Buybacks & Capital Allocation

Operating Cash Flow
$73.0M
Cash generated from operations
Stock Buybacks
$28.0M
Shares repurchased (TTM)
Capital Expenditures
$72.0M
Investment in assets
Dividends
None
No dividend program

CSTM SEC Filings: Latest 10-K & 10-Q Analysis

Access official SEC EDGAR filings for Constellium SE (CIK: 0001563411)

📋 Recent SEC Filings

Date Form Document Action
May 5, 2026 4 xslF345X06/wk-form4_1777995526.xml View →
May 4, 2026 4 xslF345X06/wk-form4_1777907585.xml View →
May 4, 2026 4 xslF345X06/wk-form4_1777907286.xml View →
May 1, 2026 4 xslF345X06/wk-form4_1777657547.xml View →
Apr 29, 2026 10-Q cstm-20260331.htm View →

Frequently Asked Questions about CSTM

What is the AI rating for CSTM?

Constellium SE (CSTM) has a Combined AI Rating of HOLD from Claude (HOLD) and ChatGPT (HOLD) with 70% combined confidence, based on fundamental analysis of SEC EDGAR filings.

What are CSTM's key strengths?

Claude: Strong revenue growth of 15.2% YoY demonstrates market demand. Robust operating margins of 11.1% and ROE of 17.8% indicate operational efficiency. ChatGPT: Strong revenue growth of 15.2% YoY with positive operating leverage. Healthy operating cash flow generation of $489 million and positive free cash flow.

What are the risks of investing in CSTM?

Claude: Critical cash flow deterioration: $1M FCF on $199M net income signals working capital stress or earnings quality issues. Low quick ratio (0.60x) indicates potential liquidity pressure and inventory-dependent operations. ChatGPT: High leverage with debt/equity of 2.00x and only moderate interest coverage of 4.0x. Thin net margin of 3.2% and free cash flow margin of 1.9% leave limited cushion if demand weakens.

What is CSTM's revenue and growth?

Constellium SE reported revenue of $2.5B.

Does CSTM pay dividends?

Constellium SE does not currently pay dividends.

Where can I find CSTM SEC filings?

Official SEC filings for Constellium SE (CIK: 0001563411) including 10-K, 10-Q, and 8-K reports are available on SEC EDGAR.

What is CSTM's EPS?

Constellium SE has a diluted EPS of $1.42.

How is the AI analysis conducted?

Two independent AI systems — Claude (Anthropic) and ChatGPT (OpenAI) — analyze SEC EDGAR filings including 10-K annual reports and 10-Q quarterly reports. Each AI evaluates financial health, profitability ratios, balance sheet strength, and growth metrics. The combined rating reflects both perspectives for balanced insights.

Is CSTM a good stock to buy right now?

Based on our AI fundamental analysis in May 2026, Constellium SE has a HOLD rating with 70% confidence. Review the strengths and risks sections above before making a decision. This is not investment advice.

Is CSTM stock overvalued or undervalued?

Valuation metrics for CSTM: ROE of 17.8% (sector avg: 14%), net margin of 8.1% (sector avg: 10%). Higher ROE suggests strong returns relative to peers.

Should I buy CSTM stock in 2026?

Our dual AI analysis gives Constellium SE a combined HOLD rating for 2026. Revenue is data pending, with profitability at or below sector average. Always conduct your own research.

What is CSTM's free cash flow?

Constellium SE's operating cash flow is $73.0M, with capital expenditures of $72.0M. FCF margin is 0.0%.

How does CSTM compare to other Materials stocks?

Vs Materials sector averages: Net margin 8.1% (avg: 10%), ROE 17.8% (avg: 14%), current ratio 1.39 (avg: 1.6).

Is Constellium SE carrying too much debt?

CSTM has a debt-to-equity ratio of 1.73x, which is above the Materials sector average of 0.6x. However, the current ratio of 1.39 suggests adequate short-term liquidity.

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Disclaimer: This analysis is generated by Claude AI (Anthropic) and ChatGPT (OpenAI) based on publicly available SEC EDGAR filings. It does not include stock price data and should not be considered financial advice. All fundamental data is sourced from SEC public domain filings. Always conduct your own research and consult with a qualified financial advisor before making investment decisions.
Data Source: SEC EDGAR | Analysis Date: May 6, 2026 | Data as of: 2026-03-31 | Powered by Claude AI