CSTM (Constellium SE) Shares Buyback Ratio %: 2.87 (As of Aug. 13, 2026)

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CSTM Constellium SE CSTM
74 GF Score
Price $29.13
GF Value $21.76
Valuation Significantly Overvalued
! 1 Warning Sign
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What is Constellium SE Shares Buyback Ratio %?

Constellium SE CSTM -1.25% 74 Shares Buyback Ratio % is 2.87 as of Aug. 13, 2026. GuruFocus rates CSTM with a GF Score™ of 74/100 and a GF Value™ of $21.76 (Significantly Overvalued). The stock has 1 warning sign investors should review.

Shares Outstanding (EOP) are shares that have been authorized, issued, and purchased by investors and are held by them.

GuruFocus calculates shares buyback ratio using previous shares outstanding minus the current shares outstanding, and then divides by previous shares outstanding. Constellium SE's current shares buyback ratio was 2.87%.

Constellium SE Shares Buyback Ratio % Related Terms

Constellium SE Shares Buyback Ratio % Historical Data

* Premium members only.

The historical data trend for Constellium SE's Shares Buyback Ratio % can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Constellium SE Shares Buyback Ratio % Chart

Constellium SE Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Shares Buyback Ratio %
Get a 7-Day Free Trial Premium Member Only Premium Member Only -1.22 -1.85 -1.74 2.25 5.64

Constellium SE Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Shares Buyback Ratio % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 2.36 1.24 1.72 -0.54 0.46
CSTM
74GF Score
Constellium SE CSTM
Shares Buyback Ratio % is just one metric. See GF Score™, valuation, warning signs, and more.
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Constellium SE Shares Buyback Ratio % Calculation

Constellium SE's Shares Buyback Ratio for the fiscal year that ended in Dec. 2025 is calculated as

Shares Buyback Ratio=(Shares Outstanding (EOP) (A: Dec. 2024 ) - Shares Outstanding (EOP) (A: Dec. 2025 )) / Shares Outstanding (EOP) (A: Dec. 2024 )
=(143.523 - 135.425) / 143.523
=5.64%

Constellium SE's Shares Buyback Ratio for the quarter that ended in Jun. 2026 is calculated as

Shares Buyback Ratio=(Shares Outstanding (EOP) (A: Mar. 2026 ) - Shares Outstanding (EOP) (A: Jun. 2026 )) / Shares Outstanding (EOP) (A: Mar. 2026 )
=(136.150 - 135.528) / 136.150
=0.46%

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Frequently Asked Questions Learn more about Shares Buyback Ratio % →
What does a Shares Buyback Ratio % of 2.87 mean?
Constellium SE (CSTM) has a Shares Buyback Ratio % of 2.87 as of Aug. 13, 2026. Share buyback ratio is the percent change of a company's shares outstanding from two periods. View historical data on Constellium SE and its competitors.
Is Constellium SE's Shares Buyback Ratio % too high?
Constellium SE's current Shares Buyback Ratio % is 2.87. Overall, Constellium SE has a GF Score™ of 74/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Constellium SE's Shares Buyback Ratio % compare to CENX and KALU?
Constellium SE's Shares Buyback Ratio % of 2.87 can be compared against companies in the Metals & Mining industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Shares Buyback Ratio % for a Metals & Mining company?
A good Shares Buyback Ratio % depends on the Metals & Mining industry context. However, Shares Buyback Ratio % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Shares Buyback Ratio % mean?
A high Shares Buyback Ratio % can signal that a stock is expensive relative to its fundamentals. Share buyback ratio is the percent change of a company's shares outstanding from two periods. View historical data on Constellium SE and its competitors. Constellium SE's current Shares Buyback Ratio % is 2.87. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Constellium SE stock overvalued right now?
Based on GuruFocus' analysis, Constellium SE (CSTM) is currently considered Significantly Overvalued. The stock's GF Value™ is $21.76, compared to a current price of $29.13 — trading 33.9% above its estimated fair value. The current Shares Buyback Ratio % is 2.87. Constellium SE's overall GF Score™ is 74/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Shares Buyback Ratio % calculated?
Shares Buyback Ratio % is calculated from a company's financial statements. For Constellium SE (CSTM), the current Shares Buyback Ratio % is 2.87 as of Aug. 13, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is Constellium SE (CSTM) Overvalued in 2026?

Based on GuruFocus' analysis, Constellium SE stock appears to be overvalued. The current stock price of $29.13 is trading 33.9% above its estimated GF Value™ of $21.76. GuruFocus considers Constellium SE to be Significantly Overvalued.

Key valuation signals for CSTM:

  • Shares Buyback Ratio %: 2.87
  • GF Value™: $21.76 vs. price of $29.13 (33.9% above fair value)
  • GF Score™: 74/100 with 1 warning sign

No single metric tells the full story. See the CSTM stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

Constellium SE Business Description

Other Exchanges 3OK:Germany
Address 300 East Lombard Street, Suite 1710, Baltimore, MD, USA, 21202
Constellium SE is engaged in the development, manufacture and sale of a broad range of high value-added specialty rolled and extruded aluminum products to the aerospace, space, defense, packaging, automotive, commercial transportation and general industrial end-markets. Its business model is to add value by converting aluminum into semi-fabricated and, in some instances, fully-fabricated alloyed aluminum products that meet stringent and performance-critical requirements from customers. It operates through three segments: Aerospace & Transportation Operating Segment, Packaging & Automotive Rolled Products Operating Segment, and Automotive Structures & Industry Operating Segment. It serves Aerospace, Packaging and Automotive and operates in the United States, France, Germany and others.
74GF Score

Get the complete analysis for CSTM

Shares Buyback Ratio % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$29.13
Price
$21.76
GF Value