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Constellium SE (CSTM) Stock Analysis

Constellium SE (CSTM) is a Aluminum stock listed on NYSE and quoted in US Dollar.

Last Updated: October 21, 2026

CSTM

$25.58

−$0.18 (−0.70%)

Oct 21, 2026 · Market close

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Price History

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CSTM Key Statistics

As of Oct 21, 2026
Trading
Open
$25.80
Previous Close
$25.76
Day's Range
25.51–25.93
52-Week Range
14.62–36.99
Volume
910.58K
BetaHow much the share price moves relative to the wider market. 1.0 moves in line with it; above 1.0 swings more, below 1.0 less.
1.57
Valuation
Market Cap
$3.47B
P/E Ratio
6.61
Forward P/EShare price divided by forecast earnings for the year ahead, rather than the year just past.
8.72
PEG RatioThe P/E ratio divided by the expected earnings growth rate. It puts a high P/E in the context of how fast profits are growing.
0.40
P/S ratioMarket value divided by annual revenue. Useful for companies that are not yet profitable, where a P/E cannot be calculated.
0.36
EPS (ttm)Profit attributable to each share over the last twelve months.
3.87
Financials (FY)
Revenue (FY)
$8.45B+15.19%
Net Income (FY)
$273.00M+387.50%
Profit marginThe share of revenue left as profit after all costs and taxes.
5.69%
Shares OutstandingThe total number of shares held by all investors. Market value is this figure multiplied by the share price.
135.53M
1-Year Return
+59.18%
Dividend and dates
Earnings Date
October 28, 2026
Avg Volume
1.52M

Only metrics the company reports are shown. Data provided by Yahoo Finance via yfinance. Updated daily.

Key facts

As of October 21, 2026, CSTM closed at $25.58, +59.18% over 1 year.

Constellium SE (CSTM) has a market capitalization of $3.47B.

In fiscal 2025, CSTM reported revenue of $8.45B.

CSTM Stock Return by Calendar Year

Constellium SE (CSTM) 10-year return: what $10,000 became

1 year
$10,000 $15,918
+59.18%
5 years
$10,000 $14,101
+41.01%
10 years
$10,000 $45,679
+356.79%

If you had invested $10,000 in Constellium SE (CSTM) 10 years ago, at the close on October 21, 2016, it would have been worth $45,679 at the close on October 21, 2026: +356.79% in total, +16.40% a year. A historical calculation from closing prices adjusted for splits and dividends, before fees and taxes.

Calendar-year returns computed from daily closing prices. Partial years are shown muted and marked with an asterisk.

YearReturn
2026 (partial year)+35.70%
2025+83.54%
2024−48.55%
2023+68.72%
2022−33.95%
2021+28.02%
2020+4.40%
2019+91.70%
2018−37.31%
2017+88.98%
2016 (partial year)+4.61%

As of October 21, 2026.

CSTM Revenue and Earnings by Fiscal Year

FY ends December
Fiscal yearRevenueNet incomeNet margin
2025$8.45B$273.00M3.2%
2024$7.34B$56.00M0.8%
2023$7.83B$152.00M1.9%
2022$8.53B$308.00M3.6%
Fiscal yearRevenueGross profitOperating incomeNet incomeNet margin
2025$8.45B$1.19B$474.00M$273.00M3.2%
2024$7.34B$938.00M$272.00M$56.00M0.8%
2023$7.83B$1.06B$386.00M$152.00M1.9%
2022$8.53B$963.00M$343.00M$308.00M3.6%

Annual figures as reported, in the company's reporting currency. As of December 31, 2025.

CSTM Valuation vs Aluminum Median

Median of 4 stocks
MetricCSTMAluminum medianvs median
P/E6.616.853% below
P/S ratio0.360.6847% below
Profit margin5.69%8.18%2.5 pts below

Medians across 4 Aluminum stocks that report the metric. Medians, not averages, so one outlier cannot move them. As of October 21, 2026.

Recent News

All 20 articles ↓

News provided by third-party sources. Not financial advice.

Analysis

Data-derived

Company Overview

Constellium SE (CSTM) carries a market capitalisation of $3.47B. The company sits in the Basic Materials sector, in the Aluminum industry. The company reports 11,500 employees.

Over the past 52 weeks the price has ranged from $14.62 to $36.99. The most recent close on file for CSTM is $25.58, dated October 21, 2026. That is −$0.18 (−0.70%) against the previous close. The latest close sits 74.97% above that 52-week low.

Financial Health

Fiscal 2025 revenue came to $8.45B. That is +15.19% against the prior fiscal year, when revenue was $7.34B. Net income for the same year was $273.00M. That is +387.50% against the prior fiscal year. Profit margin runs at 5.69%. That is 2.5 percentage points below the Aluminum median of 8.18%. Trailing earnings per share are 3.87.

Across the 4 fiscal years on file, revenue moves from $8.53B in 2022 to $8.45B in 2025. Of those 4 years, 4 report positive net income.

Valuation Assessment

The trailing P/E ratio stands at 6.61. That is 3.43% below the Aluminum median of 6.85. The forward P/E on file is 8.72. The PEG ratio, which sets the P/E against expected earnings growth, reads 0.4. Measured against sales, the shares trade at 0.36 times revenue. On price-to-sales that is 46.75% below the Aluminum median of 0.68. The medians here are taken across 4 Aluminum companies that report the metric.

Beta against the wider market is reported at 1.57. Daily returns over the trailing 10 years annualize to a volatility of 55.4%. Over the trailing twelve months the total return is +59.18%. Measured over 10 years, that is +16.40% a year compounded.

Growth & Income

No dividend is on file for CSTM.

Across the complete calendar years on file, 2019 returned +91.70% and 2024 returned −48.55%. Of the 9 complete calendar years on file, 6 finished higher. 2026 is still running; the total return is +35.70% year to date.

Peer Comparison

Constellium SE (CSTM) operates in the Aluminum industry. Here is how it compares to its closest peers by market capitalization:

Company Ticker Market Cap P/E Ratio
Constellium SE CSTM $3.47B 6.6
Alcoa Corporation AA $10.75B 7.1
Century Aluminum Company CENX $3.38B 5.9
Kaiser Aluminum Corporation KALU $2.52B 11.4

The Aluminum industry average P/E ratio is 6.8x. Constellium SE trades at a P/E of 6.6.

Every figure above is read from this page's own data on each daily rebuild. Informational only, not financial advice. As of October 21, 2026.

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About Constellium SE

Constellium SE, together with its subsidiaries, engages in the design, manufacture, and sale of rolled and extruded aluminum products for the aerospace, packaging, automotive, commercial transportation, general industrial, and defense end-markets. It operates through three segments: Packaging & Automotive Rolled Products, Aerospace & Transportation, and Automotive Structures & Industry. The Packaging & Automotive Rolled Products segment produces and develops rolled aluminum products, including canstock and closure stock for the beverage and food industry, as well as foil stock for the flexible packaging market. This segment also supplies automotive body sheets, heat exchangers, and battery foil products for the automotive market. The Aerospace & Transportation segment provides aluminum products including plate, sheet, and extrusions to aerospace, space, commercial transportation, general industrial, and defense sectors. The Automotive Structures & Industry segment offers structural solutions for the automotive industry including crash management systems, body structures, side impact beams, and battery enclosure components; soft and hard alloy extrusions for automotive, transportation, and general industrial applications; and profiles for rail and general industrial applications. This segment also provides downstream technology and services, which include pre-machining, surface treatment, research and development, and technical support services. It sells its products directly or through distributors in France, Germany, the Czech Republic, the United Kingdom, Switzerland, and the United States, as well as South Korea, Japan and China. The company was incorporated in 2010 and is headquartered in Paris, France.

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