CONSTELLIUM SE(CSTM)Stock Analysis
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Rank #353 of 2,879 stocksTOP 25%
Rankings refresh quarterly once 80% of peers have filed (~45 days after quarter-end). Next update: ~Aug 14, 2026.
Revenue Growth
Profitability
Balance Sheet
Earnings Quality
Free Cash Flow
Institutional Flow
Revenue Scale
Dilution Risk
CSTM Stock Analysis & AI Quality Score
AI stock analysis and institutional research for CONSTELLIUM SE (CSTM), a Materials sector company. 13F Pro's AI-powered ranking engine scores CSTM at 69.7/100 on a 32-signal composite quality model, placing it at rank #353 of 2,879 stocks — the top 25% of the AI-ranked universe. CSTM scores in the top quartile across earnings quality (97.9), revenue growth (92.7), revenue scale (85.1). Areas of concern include free cash flow (35.7) and institutional flow (38.6), which score below median versus the broader universe. Based on the latest XBRL financial filings (Q1 2026), CONSTELLIUM SE reports quarterly revenue of $2.5B, net income of $199.0M, an operating margin of 11.1%. Top institutional holders of CSTM by reported 13-F value include BlackRock,, Bpifrance SA, FMR, based on the most recent SEC filings. CSTM trades on the NYSE exchange and files with the SEC under CIK 1563411. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate CSTM daily and publish AI-generated analysis with cited SEC sources. The platform aggregates historical XBRL financial facts, 10-Q and 10-K filings, insider Form 4 transactions, and institutional 13-F holdings for CONSTELLIUM SE directly from SEC EDGAR. CONSTELLIUM SE's 13F Pro composite quality score has ranged between 38 and 70 since 2026, currently 69.7 — an improving long-term trajectory across 8 quarterly and live scoring snapshots.
What's Driving CSTM's Business? Latest 10-Q Breakdown
✓ 36/36 datapoints verifiedAI-extracted from CONSTELLIUM SE's 10-Q filed 2026-04-29 — Q1 2026 (quarter ended March 31, 2026). Every figure is machine-verified against the filing text on SEC EDGAR.
Revenue jumped 24% to $2.5B on higher metal prices and aerospace volumes; Adjusted EBITDA surged 93% to $359M driven by P&ARP segment outperformance.
Biggest Revenue Drivers
Total revenue: $2,461M+24% YoY
Higher revenue per ton from elevated metal prices, partially offset by 3% lower volumes in packaging rolled products.
Higher shipments and revenue per ton, benefiting from supply shortages of automotive rolled products in North America.
Higher revenue per ton from elevated metal prices, partially offset by 3% lower shipments in extruded products.
Largest Expense Items
Primarily driven by increase in raw materials and consumables from higher metal prices.
Increase primarily driven by higher labor costs.
Modest increase consistent with asset base.
Margins: Gross margin improved to 14% (net of depreciation) from 9% YoY, driven by favorable aluminum pricing pass-through and operational leverage. Operating margin expanded significantly as higher metal prices were reflected in revenue while prior-period costs benefited from favorable metal lag dynamics.
Watch Items from the Filing
- Aluminum price exposure: Midwest premium surged 222% to $2,296/ton in Q1 2026 vs. $712/ton in Q1 2025; company hedges price pass-through but large swings create working capital volatility and margin timing risks.
- P&ARP segment concentration: 60% of total revenue and 58% of Adjusted EBITDA; Adjusted EBITDA margin jumped 159% per ton from $223 to $578/ton, driven partly by metal cost favorability at specific facilities (Muscle Shoals, Neuf Brisach).
- Working capital swing: Inventories increased $279M and trade receivables $249M in Q1 2026 (vs. $69M and $273M increases in Q1 2025) due to higher metal prices and volumes; offset by $326M trade payables increase, but net working capital remains a liquidity pressure point.
- Geopolitical tariff risk: Filing notes Section 232 tariff announcements and ongoing U.S.-China tensions; April 2026 updates on tariff rates released post-filing quarter-end, with company monitoring impacts to business and ability to pass through costs.
- Liquidity strong at $904M: Comprises $143M cash, $491M Pan-U.S. ABL availability, $155M factoring capacity, and $115M French asset-based facility; no covenant violations or margin calls as of March 31, 2026.
AI-extracted and verified against SEC EDGAR filing text. Not investment advice.
Revenue
Q1 2026
$2.5B
Net Income
Q1 2026
$199.0M
Free Cash Flow
Q1 2026
$1.0M
Operating Margin
Q1 2026
11.1%
D/E Ratio
Q1 2026
1.76
Revenue & Net Income
Earnings Per Share
Key Financials Over Time
Export Financial Table · Pro+Revenue
+8.0% YoYNet Income
+79.6% YoYEPS (Diluted)
+86.4% YoYTotal Assets
+8.5% YoYTotal Debt
+0.8% YoYOp. Cash Flow
+13.2% YoY| Metric | FY 2025 | FY 2023 | FY 2022 |
|---|---|---|---|
| Revenue | $8.45B +8.0% | $7.83B -8.3% | $8.53B |
| Net Income | $273.0M +79.6% | $152.0M -50.6% | $308.0M |
| EPS (Diluted) | $1.92 +86.4% | $1.03 -51.0% | $2.10 |
| Total Assets | $5.35B +8.5% | $4.93B -0.2% | $4.94B |
| Total Debt | $1.94B +0.8% | $1.93B | — |
| Operating Cash Flow | $489.0M +13.2% | $432.0M +18.4% | $365.0M |
AI Insight: CSTM Financial Trends
Constellium delivered 24.6% revenue growth to $2.46B in Q1 2026 while net income surged 79.5% YoY, driven by operational leverage and margin expansion.
• Revenue grew from $1.98B (Q1 2025) to $2.46B (Q1 2026), a 24.6% increase; net income rose from $37M to $199M over the same period.
• Operating cash flow jumped to $218M in Q4 2025, up 276% from $58M in Q1 2025, signaling improved cash generation despite seasonal volatility.
• Equity base strengthened 58.6% from $706M (Q4 2023) to $1.12B (Q1 2026), reflecting retained earnings and capital accumulation.
⚠ Total debt increased to $1.97B (Q1 2026) from $1.92B (Q4 2024), keeping leverage elevated despite equity growth; monitor debt reduction pace.
⚠ Operating cash flow declined sharply to $73M in Q1 2026 from $218M in Q4 2025, raising questions on sustainability of recent cash generation.
AI Insight: CSTM Ratio Trends
Operating margin surged to 11.1% in Q1 2026, nearly quadrupling from 2.7% in Q2 2025 as ROIC jumped to 35.2%.
• OpMargin expanded from 2.7% (Q2 2025) to 11.1% (Q1 2026); ROIC climbed from 8.0% to 35.2% over same period.
• Debt-to-equity ratio declined from 2.72 (Q4 2024) to 1.76 (Q1 2026), improving leverage profile by 35%.
• Net profit margin reached 8.1% in Q1 2026 vs. 1.7% in Q2 2025; ROE surged to 71.1% from 18.5%.
⚠ Q1 2026 metrics are annualized; TTM shows more modest 6.9% OpMargin, 20.0% ROIC—monitor sustainability.
⚠ Sequential volatility evident: Q1–Q2 2025 margins collapsed to 2.7%, suggesting cyclicality or operational lumpiness.
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Top Institutional Holders of CSTM
BlackRock, Inc.
$318.7M12,964,203 shBpifrance SA
$309.6M12,593,903 shFMR LLC
$171.1M6,961,768 shVANGUARD PORTFOLIO MANAGEMENT LLC
$96.5M3,927,097 shMILLENNIUM MANAGEMENT LLC
$85.3M3,470,091 shD. E. Shaw & Co., Inc.
$79.5M3,234,576 shARROWSTREET CAPITAL, LIMITED PARTNERSHIP
$79.3M3,228,027 shMORGAN STANLEY
$78.6M3,196,054 shNuveen, LLC
$69.5M2,827,731 shSTATE STREET CORP
$67.9M2,763,495 sh
| Fund | Value | Shares |
|---|---|---|
| BlackRock, Inc. | $318.7M | 12,964,203 |
| Bpifrance SA | $309.6M | 12,593,903 |
| FMR LLC | $171.1M | 6,961,768 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $96.5M | 3,927,097 |
| MILLENNIUM MANAGEMENT LLC | $85.3M | 3,470,091 |
| D. E. Shaw & Co., Inc. | $79.5M | 3,234,576 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $79.3M | 3,228,027 |
| MORGAN STANLEY | $78.6M | 3,196,054 |
| Nuveen, LLC | $69.5M | 2,827,731 |
| STATE STREET CORP | $67.9M | 2,763,495 |
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Is CSTM a good stock to buy?
13F Pro's AI-powered analysis of CONSTELLIUM SE (CSTM) draws on SEC EDGAR-sourced fundamentals, institutional 13F holdings, and insider Form 4 transactions in the Materials sector (listed on NYSE). The 32-signal AI Quality Score, current rank, and full bull/bear verdict for CSTM are available on the CSTM stock profile dashboard — with the same data, AI insights, ratios, and institutional activity refreshed after every 10-K, 10-Q, 13F, and Form 4 filing.
Which hedge funds own CSTM?
Institutional investors are required to disclose their holdings quarterly via SEC Form 13F. 13F Pro aggregates these filings to show which hedge funds, mutual funds, and asset managers are buying or selling CSTM. Combined with insider transaction data from Form 4 filings and AI-powered analysis from 10 specialized research agents, 13F Pro provides a comprehensive view of CONSTELLIUM SE's investment landscape.