CONSTELLIUM SE (CSTM) Stock
CSTM has an Alpha Score of 51 out of 100 (weak), computed on Oct 31, 2026 from 3 of 4 sub-scores. Company insiders reported 1 open-market buy and 0 sales on SEC Form 4 in the 90 days to Nov 3, 2026. Its trailing P/E ratio is 5.6 and its net margin 5.7% (key statistics as of Oct 31, 2026).
What is CSTM's Alpha Score?
How it works →Alpha Score of 51 reflects moderate overall profile with poor momentum, strong value, moderate quality. Based on 3 of 4 signals – score is capped at 90 until remaining data ingests.
Computed from 3 of 4 sub-scores; a sub-score is left out when its inputs are missing, and the composite is capped accordingly.
Computed Oct 31, 2026
A rules-based research rating, not a recommendation to buy or sell.
Are CONSTELLIUM SE insiders buying or selling?
SEC Form 4 filings| Date | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| Nov 2, 26 | Deslarzes Jean-Christophe | Director | BUY | 1.8K | $42K |
| Aug 3, 26 | Deslarzes Jean-Christophe | Director | BUY | 1.5K | $41K |
SEC Form 4 filings as of Nov 3, 2026
See cluster-buy signals across all tickers →What are CSTM's key statistics?
Key statistics as of Oct 31, 2026
How does CSTM's valuation compare with the Materials sector?
| Metric | CSTM | Materials median | Companies in median |
|---|---|---|---|
| P/E ratio | 5.6 | 18.6 | 71 |
| Net margin | 5.69% | 8.63% | 80 |
| Return on equity | 52.38% | 12.49% | 83 |
Medians over the Materials stocks whose key statistics were refreshed in the last 35 days (newest Nov 4, 2026). P/E excludes loss-making companies.
CSTM price chart
Powered by TradingViewWhat does CONSTELLIUM SE do?
Constellium SE, a leader in the industrial sector, specializes in the design, manufacturing, and recycling of aluminum products. Serving diverse industries such as aerospace, automotive, and packaging, Constellium SE plays a vital role in supplying lightweight and durable aluminum solutions. The company's innovation-driven approach focuses on enhancing material properties, which help reduce emissions and improve fuel efficiency in automotive applications. In the aerospace segment, Constellium SE provides high-strength and corrosion-resistant materials, essential for the safety and performance of aircraft structures. Packaging solutions from Constellium are pivotal in food and beverage industries, offering sustainable, recyclable options that meet stringent regulatory and consumer demands. Strategically headquartered in Paris, France, and with a global operational presence, Constellium SE significantly impacts key sectors by continuously advancing the capabilities and applications of aluminum. Its commitment to sustainability and technological advancement underscores its important role in modern industrial manufacturing, contributing to a circular economy and the advancement of energy-efficient solutions.