Constellium SE research snapshot
CSTM AI stock analysis currently reads Constellium as a specialized aluminum products supplier to aerospace, automotive, and packaging markets with improving margins, strong Q1 2026 results, and a $300 million buyback program. This analysis is not a certain price prediction. At the July 12, 2026 cutoff, the latest verified close was $29.30, market capitalization was about $3.99 billion, and the key question is whether earnings estimates for the coming year (expected decline of roughly 18%) are already priced into the 9.5x trailing P/E ratio or whether aluminum demand faces a cyclical downturn. This is informational research and not investment advice.
Current price
$29.30
Market cap
$3.99 billion
AI score
58 / 100
Rating
Moderate business, cyclical valuation risk
Trend status
Pulled back from 52-week highs, above 200-day moving average
Data cutoff (updated weekly)
July 12, 2026
Informational use only. This page is not investment advice.
| Dimension | Conclusion | Confidence |
|---|---|---|
| Business quality | Constellium designs and manufactures rolled and extruded aluminum products for aerospace (plate, sheet), automotive (body structures, crash management, battery enclosures), and packaging (canstock, foil). The business is diversified across three end-markets with long-term supply contracts. | Medium-high |
| Moat | The moat comes from specialized aluminum rolling and extrusion capabilities, long-term supply agreements with aerospace OEMs and automotive manufacturers, proprietary alloy development, and recycling operations. However, aluminum is a commodity-input business and customers can switch suppliers. | Medium |
| Management | CEO Benoit Ribadeau Dumas has led the company since 2023 and brings operational and restructuring experience. Management approved a $300M buyback in March 2026, signaling confidence. However, insider selling has significantly exceeded buying in recent months (nearly 50x more sold than bought). | Medium |
| Financial trend | Revenue TTM was about $8.93 billion. Q1 2026 revenue grew 24.4% YoY. Net income TTM was roughly $273 to $435 million depending on the metric used (statutory filings needed for precision). Profit margin near 4.9% and ROE around 43 to 46% are strong for the sector. | Medium |
| Valuation | The stock trades at about 9.5x TTM earnings and 4.1x book value. The forward P/E of 8.8x prices in the expected earnings decline. EV/Revenue near 0.69x and EV/EBITDA near 5.8x are moderate for the metals sector. | Medium |
| Technical trend | CSTM pulled back from its 52-week high of $36.99 and was trading at $29.30 near the low end of its 50-day range ($29.30 to $36.16). The stock remains above the 200-day moving average, suggesting the long-term uptrend is intact but short-term momentum is weak. | Medium-high |
| Risk level | Key risks include aluminum commodity price cyclicality, high debt leverage (debt/equity around 174%), expected earnings decline of roughly 18% next year, significant insider selling, aerospace and automotive demand sensitivity, and energy cost exposure. | Medium |
| AI confidence | Medium confidence for the business model, technical levels, and risk identification. Lower confidence for precise valuation because of the net income data discrepancy between sources and uncertainty around the magnitude of the coming earnings decline. | Medium data confidence |
| Investment certainty | Low-medium certainty. The business has good end-market positions and the valuation is not extreme, but high debt, commodity cyclicality, expected earnings contraction, and insider selling patterns reduce confidence. | Low-medium |
CSTM AI stock forecast
The CSTM AI stock forecast uses scenario ranges around the $29.30 cutoff price. It does not claim that AI can predict a specific future price. The bullish case requires sustained aluminum demand from aerospace and automotive, successful margin expansion, and the buyback program to support per-share earnings. The base case assumes modest earnings contraction in line with analyst expectations while the stock trades at a single-digit P/E. The bearish case assumes a broader industrial downturn reduces aluminum demand and margins compress further.
$40 to $47
More likely if aerospace build rates accelerate, automotive aluminum content continues rising, the buyback program reduces share count meaningfully, and the stock re-rates to a P/E multiple closer to 12x on recovering earnings.
$28 to $33
More likely if aluminum demand holds steady, earnings decline roughly 10 to 18% as expected, and the stock maintains a P/E multiple near 9 to 10x.
$16 to $22
More likely if industrial demand weakens, aluminum prices fall, debt service costs rise, the earnings decline exceeds current estimates, or broader market risk-off sentiment compresses metals sector multiples.
CSTM AI technical analysis
CSTM AI technical analysis starts from the $29.30 July 10 close used for this July 12 static page. Public technical sources showed the stock below the 50-day moving average but above the 200-day moving average, with RSI in neutral territory near 45. Because this page does not fetch request-time market data, traders should confirm levels on a live chart before acting.
| Level | Value | Why it matters |
|---|---|---|
| Current price | $29.30 | Latest verified close used for this page as of the July 12, 2026 data cutoff. |
| Near resistance | $31 to $33 | The 50-day moving average area and prior consolidation zone. A reclaim with volume would improve the near-term technical setup. |
| Secondary resistance | $35 to $37 | The 52-week high zone around $36.99. A breakout above this level would signal strong continuation of the long-term uptrend. |
| Near support | $26 to $28 | The first support planning zone. A close below this area would suggest the pullback is deepening. |
| Secondary support | $22 to $24 | The 200-day moving average area. A sustained break below this level would weaken the long-term structural uptrend. |
| 50-day moving average | About $31.50 | MarketBeat data showed CSTM trading below the 50-day moving average as of July 10, indicating short-term bearish momentum. |
| 200-day moving average | About $23.00 | CSTM remained above the 200-day moving average, supporting the long-term uptrend. |
| Momentum | RSI about 43 to 47 | The RSI was in neutral-to-slightly-bearish territory, not oversold, so further downside is possible before a mean-reversion bounce. |
| Volume | About 1.36 million shares (recent) | Recent volume was below the average of about 1.77 million, suggesting limited urgency in either direction. |
| Volatility | ATR roughly $1.50 to $2.00 | Position sizing should allow for normal daily swings around the $29.30 cutoff price. |
| Invalidation | Close below $26, then $22 | A close below the $26 area weakens the near-term setup. A break below the 200-day area near $22 would challenge the structural uptrend. |
CSTM AI trading strategy
The CSTM AI trading strategy is a rules-based framework, not personalized advice. It combines end-market demand evidence, technical confirmation, position sizing, and clear invalidation levels.
Look for CSTM to reclaim the 50-day moving average near $31.50 and break above $33 with improving volume before treating momentum as confirmed. The long-term trend is up if price remains above the 200-day moving average.
A failed attempt to reclaim the 50-day area or a daily close below $26 should reduce confidence in the setup.
If CSTM pulls back toward the $26 to $28 support zone, evaluate whether the sell-off is driven by aluminum macro weakness or stock-specific factors. A bounce from this zone with above-average volume could offer a tactical entry.
Do not average down solely because the valuation looks cheap. Review earnings estimates, debt levels, and aluminum price trends first.
Track quarterly results (next report: July 29, 2026), aluminum price trends, aerospace build rates, automotive production data, debt reduction progress, buyback execution, and insider trading patterns.
Lower the rating if the earnings decline exceeds current estimates, debt increases, the buyback is paused, or insider selling continues at elevated levels.
Investment research summary
Constellium transforms aluminum into high-performance rolled and extruded products for aerospace (plate, sheet), automotive (body structures, battery enclosures, crash management), and packaging (canstock, foil, closure stock) markets under long-term supply contracts.
The moat depends on proprietary alloy development, specialized rolling and extrusion assets, long-term OEM relationships in aerospace and automotive, recycling capabilities, and operational scale across 30+ facilities in Europe and North America.
The thesis can fail if aluminum demand weakens in a recession, aerospace build rates slow, automotive OEMs reduce aluminum content, energy costs compress margins, debt service burdens cash flow, or the expected earnings decline is worse than currently estimated.
CEO Benoit Ribadeau Dumas brings operational experience. The buyback program signals confidence. However, the significant insider selling imbalance (nearly 50x more sold than bought in recent months) warrants attention as a potential caution signal.
Aluminum demand is supported by aerospace production growth, automotive lightweighting trends (especially battery electric vehicles using aluminum structures), and packaging sustainability trends. However, the industry is cyclical and sensitive to global industrial production and trade policy.
At roughly 9.5x TTM earnings and 4.1x book value, the stock is not expensive relative to the broader market. However, the 174% debt/equity ratio, expected earnings decline, commodity price sensitivity, and insider selling leave a thin margin of safety for a cyclical metals company.
Source-backed data
Every metric below includes a source and last verification date.
| Metric | Value | Source | Last verified |
|---|---|---|---|
| CSTM price | $29.30 close on July 10, 2026 | MarketBeat and Yahoo Finance quote snapshots | July 12, 2026 |
| Market capitalization | $3.99 billion, verified as $29.30 x 136,150,000 shares | financial_rigor.py market cap verification and MarketBeat | July 12, 2026 |
| Enterprise value | $6.16 billion | Yahoo Finance key statistics | July 12, 2026 |
| TTM revenue | $8.93 billion | Yahoo Finance | July 12, 2026 |
| TTM net income | $273 to $435 million (source discrepancy; statutory filing recommended) | MarketBeat ($273M) and Yahoo Finance ($435M) | July 12, 2026 |
| TTM diluted EPS | $3.09 | MarketBeat | July 12, 2026 |
| Cash and equivalents | $143 million | Yahoo Finance key statistics | July 12, 2026 |
| Total debt / Equity | 174.29% | Yahoo Finance key statistics | July 12, 2026 |
| Price / Book | 4.08x | MarketBeat | July 12, 2026 |
| Valuation math | 9.48x TTM PE, 8.77x forward PE, 4.08x PB, 0.69x EV/Revenue, 5.81x EV/EBITDA | financial_rigor.py valuation verification, Yahoo Finance, and MarketBeat | July 12, 2026 |
| Beta (5Y monthly) | 1.55 | MarketBeat | July 12, 2026 |
| 52-week range | $13.04 to $36.99 | MarketBeat and Yahoo Finance | July 12, 2026 |
This CSTM AI stock analysis is an informational tool for research and education only. It is not investment advice, a recommendation, or a guarantee of future performance. Forecast ranges are scenarios based on available data as of July 12, 2026 and can be wrong.
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