Constellium SE (CSTM)

NYSE · Basic Materials · Aluminum · France

Constellium SE is a mid cap company (market value between $2 billion and $10 billion) in the Aluminum industry.

Constellium manufactures and sells high value-added aluminum components across aerospace, defense, packaging, automotive and industrial sectors. Through three operating segments, the company converts aluminum into specialized alloyed semi-fabricated and finished products tailored to customer requirements. The group operates manufacturing facilities and research centers globally, serving aerospace, space, defense, commercial transportation and packaging industries.

From its FY2025 annual report (Form 10-K)

Intrinsic value, DCF valuation, financial health and value investing analysis for the Constellium SE stock.

Our verdict on CSTM

Undervalued: intrinsic value $91.73 per share, market price $25.76, margin of safety 71.9% (as of 2026-10-20).

Discounting its cash flows at 9.8% (average of 3 methods) values the shares at $91.73; the price of $25.76 is 72% below that value, and 74% of that value comes from beyond year five.

Leak Score: 81/100 on 11 of 12 signals (Strong Leak).

ETFs with the most weight in CSTM

17 more funds hold it; the full list is part of the paid plan.

More on CSTM

Browse

Peers in Aluminum

Is CSTM undervalued or overvalued?

CSTM is undervalued (as of the 2026-10-20 close). Discounting its cash flows at 9.8% (average of 3 methods) values the shares at $91.73; the price of $25.76 is 72% below that value, and 74% of that value comes from beyond year five.

What is the intrinsic value of CSTM?

$91.73 per share (as of the 2026-10-20 close), against a market price of $25.76. That is a margin of safety of 71.9%. The value is the average of the valuation methods that apply to this company, recomputed every night after the US close.

What is Constellium SE's Leak Score?

81 out of 100, which we rate "Strong Leak", on 11 of 12 value investing signals.