CONSTELLIUM SE CLASS A (CSTM)
Materials · aluminum products · NYSE
Constellium is a leading designer and manufacturer of specialized aluminum products for critical applications in the automotive, aerospace, and packaging markets.
What CONSTELLIUM SE CLASS A does
Constellium SE is a global manufacturer of high-value-added aluminum products and systems. The company specializes in the development and production of aluminum rolled and extruded products, primarily serving the aerospace, automotive, and packaging industries.
Themes: lightweight materials, automotive electrification, aerospace manufacturing, aluminum recycling, industrial manufacturing
Fundamentals
- Price$27.04 as of 2026-08-21 close
- Market cap$3.7B as of 2026-08-21
- 1-year return+89.9% 2025-08-21 close $14.24 → 2026-08-21 close $27.04
- P/E7.26 as of 2026-08-24
- Net margin+5.7% as of 2026-08-24
- Gross margin+16.3% as of 2026-08-24
- ROE+52.4% as of 2026-08-24
- Debt / equity1.54 as of 2026-08-24
- Revenue growth (YoY)-26.6% as of 2026-08-24
- Revenue CAGR (3y)-0.3% SEC XBRL
- Beta1.58 as of 2026-08-24
- Last reported earnings2026-07-29 SEC EDGAR Form 8-K (Item 2.02)
How CSTM compares in its sector
- price-to-earnings ratiobottom 10% 94 covered Materials peers, as of 2026-08-24
- net profit marginmiddle range 142 covered Materials peers, as of 2026-08-24
- operating marginmiddle range 142 covered Materials peers, as of 2026-08-24
- gross marginmiddle range 141 covered Materials peers, as of 2026-08-24
- return on equitytop 10% 151 covered Materials peers, as of 2026-08-24
- 3-year revenue CAGRmiddle range 127 covered Materials peers
- free cash flow (absolute dollars, latest fiscal year)middle range 124 covered Materials peers, as of FY2025
Position among covered Materials companies that report each metric (minimum 5 peers). A relative position within our covered catalog — not a valuation, quality, or investment judgment. A higher percentile is simply a higher value (for P/E, more expensive on earnings — never "better"). Informational only.
Top 10 scores & list membership
CSTM is not currently in any published Top 10 list. Its scores are below.
Long-term score
Not scored for the long-term list: no shareholder return data.
Short-term score
41.6 #1319 of 1,704 scored · #65 of 83 in Materials
Volume and participation 58th: trading volume is about normal versus its 30-day average; setup 52nd: over the past year its closes ranged, and it has retraced roughly a third of its move over the past year — 41% of it; weakest is trend 26th: a strong downtrend, with sellers in control.
Scores as of 21 Aug 2026. Each bar is a percentile: how this company ranked against every company the score ranked, 0–100. A list is a published formula and its output, not a recommendation. Method version 2.
How CONSTELLIUM SE CLASS A looks technically
CONSTELLIUM SE CLASS A (CSTM) is trading 4.5% above its 200-day average, the long-term trend line — a longer-term uptrend. Its 50-day average crossed above its 200-day average about 287 trading days ago — a "golden cross", a bullish long-term signal. A strong downtrend is in place — ADX, a 0–100 trend-strength gauge, is 31, with sellers in control. Momentum is neutral — its 14-day RSI (a 0–100 momentum gauge) is 39, neither overbought (above 70) nor oversold (below 30). MACD, a trend-momentum gauge, turned bearish about 3 trading days ago (its momentum flipped negative). It made a new 20-day low about 2 trading days ago. It is 26.9% below its highest point of the past year.
Trend
7
| Distance from the 200-day | it is trading 4.5% above its 200-day average, the long-term trend line — a longer-term uptrend | +4.5% |
|---|---|---|
| 50-day moving average | its average price over the last 50 trading days — a short-term trend line — is $30.13 | $30.13 |
| 200-day moving average | its average price over the last 200 trading days — the long-term trend line — is $25.87 | $25.87 |
| Swing structure | its recent peaks and dips disagree — one of them is rising while the other is not, so there is no clean up or down pattern in the swings | mixed — one of the two is not confirming |
| Last swing turn | its last significant turn was a swing high 9 calendar days ago — the swings before that are what the structure reading is measured on | 9 sessions |
| Since the 50/200 cross | its 50-day average crossed above its 200-day average about 287 trading days ago — a "golden cross", a bullish long-term signal | 287 sessions |
| Trend strength (14-day ADX) | a strong downtrend is in place — ADX, a 0–100 trend-strength gauge, is 31, with sellers in control | 30.7 |
Momentum
3
| 14-day RSI | momentum is neutral — its 14-day RSI (a 0–100 momentum gauge) is 39, neither overbought (above 70) nor oversold (below 30) | 39.4 |
|---|---|---|
| Position in its 14-day range | it is trading in the lower half of its 14-day range ($25.68 to $30.75) — its "stochastic" reading is 27 out of 100, where 0 would mean closing exactly at the 14-session low and 100 exactly at the high. This measures WHERE the price sits inside its recent range, which is a different question from the RSI beside it: RSI is a momentum gauge, measuring how FAST the price has been moving, so a stock can drift quietly to the bottom of its range with an ordinary RSI, or fall sharply and still sit in the middle. It has been climbing within that range over the last few sessions. | 26.8 |
| Since the MACD crossed zero | MACD, a trend-momentum gauge, turned bearish about 3 trading days ago (its momentum flipped negative) | 3 sessions |
Range
12
| 52-week high | its highest closing price over the past year (about 252 trading days) was $36.99 | $36.99 |
|---|---|---|
| From the 52-week high | it is 26.9% below its 52-week high (its highest price of the past year) | -26.9% |
| Above the 52-week low | it is 99.1% above its 52-week low (its lowest price of the past year) | +99.1% |
| Below the 52-week high | it is 26.9% below its highest point of the past year | 26.9% |
| Since a 20-day breakout | it made a new 20-day low about 2 trading days ago | 2 sessions |
| Since a 55-day breakout | it made a new 55-day low about 2 trading days ago | 2 sessions |
| All-time high | its highest closing price on record is $36.99 (set on 2026-06-02) | $36.99 |
| Given back of the 52-week move | over the past year its closes ranged ($13.73 to $36.15), and it has given back roughly a third of its rise from last year’s low — 41% of it. Chart-watchers call 61.8%-65% given back the "golden pocket" — for this company that is $21.58 to $22.29. It is watched widely enough that orders cluster there, which is the honest reason it matters; it is not a forecast. | 40.6% |
| From the all-time high | it is 26.9% below its all-time high | -26.9% |
| Nearest price level | it is trading 0.5% below a resistance level at $27.18 — a price it turned at four times since 2026-02-18, most recently on 2026-08-03. Since 2024-08-21 it has 10 such levels below the current price and 3 above. Levels like these describe where the price has reversed or paused before; they are not a forecast of where it will go. | +0.5% |
| All-time low | its lowest closing price on record is $3.38 (set on 2015-10-30) | $3.38 |
| Above the all-time low | it is 700.0% above its all-time low | +700.0% |
Volatility
5
| Band width vs its own 6 months | day-to-day price swings are about average versus its own recent 6-month history | 42nd percentile |
|---|---|---|
| Typical daily range | in a typical session it travels about $1.24 between its high and its low — about 4.6% of its price. That is its "average true range" over the last 14 sessions, which also counts the distance from the previous close, so a day that opens well away from yesterday counts as the large move it was | $1.24 |
| Bollinger bands (20-day, ±2σ) | most of its recent trading has stayed between about $26.55 and $30.84 — the "Bollinger bands", a range drawn two standard deviations either side of its 20-day average price, which widens when the stock gets more volatile and narrows when it settles | $26.55 – $28.70 – $30.84 |
| Typical daily range (% of price) | its price moves about 4.6% in a typical session — about typical for the companies we cover. This is the average gap between a session's high and low over the last 14 sessions, counting overnight moves, expressed against the current price so it can be compared with companies trading at any price | 4.6% |
| Stretch from the 200-day average | it is trading 1.0 daily range above its 200-day average price (4.5% above it in plain percentage terms) — a way of asking how far it has stretched from its own average in units of how far it normally moves in a day, so a calm company and a jumpy one can be compared on the same scale | 1.0 daily range above its 200-day average |
Volume
1
| Volume vs its 30-day average | trading volume is about normal versus its 30-day average | 1.12× |
|---|
Analyst
2
| Change in the average price target | analysts have raised their average price target by 0.6% since the prior reading | +0.6% |
|---|---|---|
| Change in the consensus rating | not available for this company yet | n/a |
Candlestick patterns
3
| Since a doji | today it opened and closed at almost the same price after trading through a wider range — a "doji", the classic picture of buyers and sellers finishing the session level | today |
|---|---|---|
| Since a bullish engulfing | 5 sessions ago it opened below the previous session's close and finished above that session's open — a "bullish engulfing" pair, where one up day more than undid the down day before it | 5 sessions ago |
| Since a bearish engulfing | 7 sessions ago it opened above the previous session's close and finished below that session's open — a "bearish engulfing" pair, where one down day more than undid the up day before it | 7 sessions ago |
Price gaps
3
| Gap at the open | it opened on 2026-08-21 1.8% above the previous session's close — an overnight gap, the part of the move that happened while the market was shut, and had not traded back through that level by the close | +1.8% |
|---|---|---|
| Open gap | it gapped 2.1% below the previous close 3 sessions ago and has not traded back through the level it left behind at 29.92 — an "unfilled gap", which describes a price range no trade has since crossed and is not a forecast that it will be crossed | -2.1% |
| Gap filled | a 2.0% gap up opened on 2026-08-04 has been "filled" 3 sessions ago — price traded back through the level the gap left behind, and it took 10 sessions to close | 3 sessions ago |
Price streaks
1
| Closing streak | it closed higher in its latest session, after a session that did not close higher — a single up day rather than a run | 1 session up |
|---|
Relative strength
4
| vs market, 1 month | over the past 1 month this stock lagged the market by 7.5 percentage points (the stock lost 5.2% while the market gained 2.3%) | -7.5% |
|---|---|---|
| vs market, 3 months | over the past 3 months this stock lagged the market by 18.7 percentage points (the stock lost 15.6% while the market gained 3.1%) | -18.7% |
| vs market, 6 months | over the past 6 months this stock lagged the market by 4.8 percentage points (the stock gained 6.3% while the market gained 11.1%) | -4.8% |
| vs market, 12 months | over the past 12 months this stock beat the market by 69.4 percentage points (the stock gained 89.9% while the market gained 20.5%) | +69.4% |
Signal agreement
2
| Bullish technical signals | 2 of the 9 technical signals we can compute for it are currently in a bullish state: a "golden cross" — its 50-day average is above its 200-day, trading above its 200-day average — these describe past price behaviour, not a forecast | 2 of 9 |
|---|---|---|
| Bearish technical signals | 5 of the 9 technical signals we can compute for it are currently in a bearish state: a strong downtrend, with sellers in control, a fresh 20-day low, MACD momentum is negative, lagging the market over 6 months, trading below the Ichimoku cloud — these describe past price behaviour, not a forecast | 5 of 9 |
Trend (Ichimoku cloud)
1
| Vs the Ichimoku cloud | trading 12% below the Ichimoku cloud — a band drawn from where its own highs and lows sat up to 2026-07-16 and projected forward over today's price, the side traders read as an established downtrend, with the band above acting as the level that would have to be cleared. The band itself is moderate, spanning 6.3% of the share price. | -12.2% |
|---|
Volume-weighted price
2
| Vs this year’s average price paid | the price is 5% below the average price paid so far this year, so the typical buyer over that stretch is under water. That average is $28.37 — a volume-weighted average of daily closes over 158 sessions, not a true tick-by-tick VWAP. | -4.7% |
|---|---|---|
| Vs the average paid since it last reported | the price is 5% below the average price paid since it last reported on 2026-07-29 (its 10-Q), so the typical buyer over that stretch is under water. That average is $28.32 — a volume-weighted average of daily closes over 18 sessions, not a true tick-by-tick VWAP. | -4.5% |
Price levels it has turned at before
CSTM last closed at $27.04 on 2026-08-21. Since 2024-08-21 it has turned at 10 prices below its last close and 3 above; the 3 nearest below and the 3 nearest above are listed, nearest first.
| Level | Side | Distance | Evidence |
|---|---|---|---|
| $27.18 | Resistance | 0.5% above the last close | turned there four times · 2026-02-18 to 2026-08-03 |
| $30.18 | Resistance | 11.6% above the last close | turned there three times · 2026-05-04 to 2026-07-24 |
| $30.98 | Resistance | 14.6% above the last close | turned there twice · 2026-04-15 to 2026-08-12 |
| $21.99 | Support | 18.7% below the last close | turned there twice · 2026-01-30 to 2026-03-20 |
| $16.91 | Support | 37.5% below the last close | turned there twice · 2024-09-27 to 2025-11-12 |
| $15.77 | Support | 41.7% below the last close | turned there twice · 2024-09-11 to 2024-09-25 |
A level is a price this company reversed or paused at more than once — they describe past behaviour, not a forecast of where the price will go.
Wave structure
No Elliott-wave labelling currently fits its swings: the recent highs and lows do not satisfy the three rules a five-wave count has to obey, so there is no count to show rather than a count we are unsure about.
Read from daily closes as of 2026-08-21.
An Elliott-wave count describes the swings already printed and the level that would disprove it. It is not a forecast, a target, or advice.
Screens: Trading above the 200-day moving average · Pulled back from the 12-month high · Broke down to a new 20-day low · MACD just crossed bearish (12/26/9) · Printed a doji candle · Under water since its last earnings report (below the anchored VWAP) | Learn: moving average · golden cross · adx · rsi · macd · breakout · fifty two week high low
Based on daily closing prices as of 2026-08-21. Describes past price behavior only — informational, not financial advice.
Analyst consensus
- Mean price target$38.04 range $34.28 – $40.80; median $39.78
Analyst estimates, as of 2026-08-19. These are third-party analyst opinions and price targets, aggregated — not a recommendation, prediction, or advice from stocks-llm. Informational only.
Analyst EPS estimate for CSTM
- Consensus EPS estimate€0.6405 next reporting period, as of 2026-08-19
Change over time is not available yet: it needs two readings of the same reporting period at least 30 days apart, and we have been recording these estimates since 2026-08-04. An estimate for a DIFFERENT quarter is not a revision, so a reading from before the last report is never compared with one after it.
The consensus estimate for the next reporting period, and how it has moved between readings of that SAME period. A change is measured only between readings estimating one period — when a company reports, the consensus moves to the next quarter and the two numbers are not comparable. Informational only, not a forecast and not advice.
Key risks (from latest filing)
["Fluctuations in aluminum prices and energy costs can impact profitability.","Dependence on the cyclical aerospace and automotive industries.","Significant level of long-term debt could affect financial flexibility."]
What changed in the latest 10-Q
AI-assisted comparison of CSTM's 10-Q filed 2026-04-29 against the prior one filed 2025-10-29.
Management's Discussion & Analysis (MD&A)
- Added:
- Added disclosure in Q1 2026 MD&A regarding April 2026 U.S. government updates and clarifications on tariff rates and assessment values for imported aluminum products, with statement that Company continues to monitor potential impacts
- Added reference to ongoing geopolitical tensions and military conflicts in Middle East, including conflict involving United States, Israel and Iran, and their potential effects on fuel and energy prices
- Added statement that Company will develop contingency plans and counter measures to address adverse effects or disruptions to operations
- Added disclosure that aerospace supply chain continues to experience destocking of aluminum products
- Added disclosure about aluminum demand increase in automotive driven by vehicle lightweighting trend
- Removed:
- Removed reference to factors that could cause differences in forward-looking statements as detailed in prior Form 10-K for year ended December 31, 2024, including specific reference to 'Special Note about Forward-Looking Statements' section
- Removed explicit cross-reference structure to detailed risk factors from prior annual report
- Reworded:
- Changed financial statement reference date from September 30, 2025 to March 31, 2026
- Changed comparative period from 'three and nine months ended September 30, 2025 and 2024' to 'three months ended March 31, 2026 and 2025'
- Changed Form 10-K reference from 'year ended December 31, 2024' to 'year ended December 31, 2025'
- Changed employee count from implicit prior disclosure to 'approximately 11,500 employees' as of March 31, 2026
- Changed facility count to reflect 'At March 31, 2026, the Group operated 24 manufacturing facilities' (with specific current-period dating)
- Shortened forward-looking statements disclosure by removing detailed reference structure to specific sections of prior reports
- Notes:
- The newer filing covers Q1 2026 (three months ended March 31, 2026) while the older filing covers nine months ended September 30, 2025, representing different reporting periods and thus some changes reflect period-specific conditions rather than uniform policy or disclosure changes
- Text appears truncated at end of newer filing section ('more aluminum usage f'), limiting ability to assess complete content comparison
Risk Factors
The two filings could not be meaningfully compared for this section.
AI-assisted comparison of two SEC filing sections. It describes wording and theme changes only, makes no materiality, legal, or investment judgement, and is not financial advice. Informational only — not financial advice.
Insider activity (SEC Form 4)
1 open-market purchase and 2 open-market sales by insiders in the last 90 days.
- Last 30 days1 buy ($40588) · 0 sells — 1 buying insider
- Last 90 days1 buy ($40588) · 2 sells ($643038) — 1 buying, 2 selling insiders
- Last 180 days3 buys ($166435) · 11 sells ($6M) — 2 buying, 10 selling insiders
Activity heuristic: net selling (a transparent product heuristic from the counts above, not a prediction or advice)
Most recent open-market transaction: 2026-08-03. As of 2026-08-24.
View full insider trading history → View SEC Form 3/4/5 filingsAsk about CSTM's insider activity →
Only open-market purchases (SEC code P) and sales (code S) are counted here. Option exercises, vesting/awards, gifts, and shares withheld for taxes are excluded — they are compensation or mechanical, not open-market conviction. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan) and are not necessarily bearish; open-market buying is not a recommendation to buy. Informational only — not financial advice.
Short interest (FINRA)
CSTM had 6,157,002 shares of reported short interest as of the 2026-07-31 FINRA settlement date (delayed, bi-monthly; not real-time).
CSTM had 4.52% of its shares outstanding sold short as of the 2026-07-31 FINRA settlement date (percent of FLOAT would be higher — float is not disclosed in the source). FINRA reported 3.28 days to cover at the same settlement.
- Reported short interest (shares) 6,157,002
- Short interest (% of shares outstanding) 4.52%
- Prior settlement (shares) 6,534,145
- Reported change -5.77%
- Days to cover (reported) 3.28
Reported to FINRA as of the 2026-07-31 settlement date. Short interest is reported to FINRA and published on a delayed, bi-monthly schedule (as of a settlement date, disseminated roughly eight business days later) — it is NOT real-time, does not cover every venue or all US trading, and is not a short-squeeze prediction or investment advice. Days-to-cover is the value FINRA reports; percent of float is not shown because the source file carries no share-count denominator — where a percent appears it is of shares OUTSTANDING, the larger base, and is therefore a floor on percent of float. Informational only — not financial advice.
Competitors & peers
- Alcoa (AA)
- Arconic Corporation
- Kaiser Aluminum (KALU)
- Hydro (NHYDY)
- Novelis (subsidiary of Hindalco Industries)
- Aleris (acquired by Novelis)
AI-enriched competitor set. Linked names are companies covered by stocks-llm; other named peers are shown for reference only.
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Frequently asked questions
What does CONSTELLIUM SE CLASS A (CSTM) do?
Constellium SE is a global manufacturer of high-value-added aluminum products and systems. The company specializes in the development and production of aluminum rolled and extruded products, primarily serving the aerospace, automotive, and packaging industries.
What sector is CONSTELLIUM SE CLASS A (CSTM) in?
CONSTELLIUM SE CLASS A (CSTM) is classified in the Materials sector. Its industry is aluminum products. It trades on NYSE.
Who are CONSTELLIUM SE CLASS A's (CSTM) competitors?
Notable peers of CONSTELLIUM SE CLASS A (CSTM) include Alcoa, Arconic Corporation, Kaiser Aluminum, Hydro and Novelis (subsidiary of Hindalco Industries). This peer set is informational only — not financial advice.
Is CONSTELLIUM SE CLASS A (CSTM) overbought or oversold right now?
CONSTELLIUM SE CLASS A (CSTM) is currently neither overbought nor oversold — its 14-day RSI (a 0–100 momentum gauge) is 39, in the neutral middle (as of 2026-08-21). RSI describes recent price momentum, not a forecast — informational only, not financial advice.
Where does stocks-llm's data on CSTM come from?
Fundamentals and prices come from market data, as of 2026-08-24; company filings and profile facts come from SEC EDGAR. All figures are delayed daily-close data shown with their as-of date — informational only, not financial advice.
Fundamentals: market data, as of 2026-08-24. Filings: SEC EDGAR. Prices are delayed daily-close data.
Last updated 2026-08-21.
Informational only — NOT financial advice. All figures are delayed daily-close data from SEC EDGAR & market data, shown with their as-of date.