With a market capitalization (market cap) of $3.79B — a measure of how much the company is worth — Constellium SE is the 1631st most valuable company in Basic Materials as of August 18, 2026. Shares trade at $27.99, down +6.43% on the day.
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Constellium SE, along with its various subsidiaries, specializes in the development, production, and distribution of high-performance rolled and extruded aluminum solutions. These solutions primarily serve the packaging, aerospace, and automotive industries. Its operations are structured into three distinct business segments: Packaging & Automotive Rolled Products, Aerospace & Transportation, and Automotive Structures & Industry. The Packaging & Automotive Rolled Products division manufactures rolled aluminum materials. This includes stock for beverage and food cans and closures, as well as foil for flexible packaging applications. Additionally, this segment provides crucial components for the automotive sector, such as body sheets and heat exchangers, alongside specialized reflective sheets. Within the Aerospace & Transportation segment, the company supplies an array of rolled aluminum products. These encompass plates, sheets, and extrusions specifically tailored for aerospace applications, including wing skins. Furthermore, it delivers plates and sheets for various transportation, industrial, and defense uses. The Automotive Structures & Industry division is responsible for advanced extruded products and structural components designed for the automotive sector. Its offerings include critical items like crash-management systems, body structures, side impact beams, and battery enclosures. It also produces both hard and soft alloy extruded profiles utilized across diverse industrial contexts, spanning automotive, engineering, rail, and other transport-related markets. Beyond manufacturing, this segment delivers value-added downstream services such as pre-machining, surface treatment, research and development, and comprehensive technical support. Constellium distributes its products either directly to customers or via a network of distributors. Its global footprint includes sales operations in European nations such as France, Germany, the Czech Republic, the United Kingdom, and Switzerland, as well as in the United States, Shanghai, and Seoul. Established in 2010, Constellium SE maintains its corporate headquarters in Paris, France.
Visit websiteAs of August 18, 2026, Constellium SE (CSTM) is worth $3.79B — this is its market capitalization, the total value of all its outstanding shares.
Constellium SE’s market cap is $3.79B, which ranks it #1631 among the most valuable companies in the Basic Materials sector tracked on MarketCapLens.
Constellium SE (CSTM) shares trade at $27.99, down 6.45% on the day, as of August 18, 2026.
Constellium SE trades at a price-to-earnings (P/E) ratio of 14.4, based on its latest share price and annual earnings per share.
Fundamentals are annual. Figures labeled with their fiscal year.
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