CSTM
Constellium SE
NYSE · Basic Materials · Aluminum · FR
$23.99
−6.22%Price chart
Sep 23Sep 28Oct 1Oct 6Oct 9Oct 14Oct 19Oct 22
Key dataOct 22, 2026
Open$24.95
From 52W high−33.64%
Volume2.09M
Market cap$3.25B
P/E (TTM)6.0x
P/S (TTM)0.3x
Div yield—
Key dataOct 22, 2026
Open
$24.95
From 52W high
−33.64%
Volume
2.09M
Market cap
$3.25B
ValuationView details →
P/E (Fwd)
8.8x
EV/EBITDA
4.7x
P/E (TTM)
6.0x
RSI (14)
34.4
MomentumView details →
1D Return
−6.22%
YTD Return
+27.45%
SummaryUpdated Jun 1, 2026
Constellium SE (NYSE:CSTM) is a French specialty aluminum manufacturer founded in 2010 and publicly traded since 2013. The company emerged from the aluminum division of Rio Tinto and has grown to become a leading global supplier of rolled and extruded aluminum products serving critical industries including aerospace, automotive, and packaging. Headquartered in Paris, Constellium operates manufacturing facilities across Europe and North America, with a particular focus on high-value specialty aluminum applications that require advanced metallurgical expertise and precision manufacturing capabilities.
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Latest newsMore news →
The West Virginia Manufacturers Association announced CONSTELLIUM SE’s Artemis II aluminum plates as the winner of its Coolest Thing Made in West Virginia competition.9d agoCONSTELLIUM SE announced that it will report its third-quarter 2026 results before market opening on October 28, 2026, and host a conference call and webcast at 10:00 a.m. Eastern Time.10d ago