Century Aluminum Co (STU:EY3) Book Value per Share: €10.06 (As of Mar. 2026)

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STU:EY3 Century Aluminum Co STU:EY3
66 GF Score
Price €37.02
GF Value €19.34
Valuation Significantly Overvalued
! 7 Warning Signs
View Full Analysis

What is Century Aluminum Co Book Value per Share?

Century Aluminum Co STU:EY3 -3.89% 66 Book Value per Share is €10.06 as of Mar. 2026. GuruFocus rates STU:EY3 with a GF Score™ of 66/100 and a GF Value™ of €19.34 (Significantly Overvalued). The stock has 7 warning signs investors should review.

Century Aluminum Co's book value per share for the quarter that ended in Mar. 2026 was €10.06.

During the past 12 months, Century Aluminum Co's average Book Value Per Share Growth Rate was 49.40% per year. During the past 3 years, the average Book Value Per Share Growth Rate was 23.50% per year. During the past 5 years, the average Book Value Per Share Growth Rate was 8.30% per year. During the past 10 years, the average Book Value Per Share Growth Rate was -6.10% per year. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the book value growth rate using book value per share data.

During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of Century Aluminum Co was 42.40% per year. The lowest was -19.60% per year. And the median was -3.10% per year.

Century Aluminum Co's current price is €37.02. Its book value per share for the quarter that ended in Mar. 2026 was €10.06. Hence, today's PB Ratio of Century Aluminum Co is 3.68.

During the past 13 years, the highest P/B Ratio of Century Aluminum Co was 6.72. The lowest was 0.40. And the median was 2.00.


Century Aluminum Co  (STU:EY3) Book Value per Share Explanation

Usually a company's book value and Tangible Book per Share may not reflect its true value. The assets may be carried on the balance sheets at the original cost minus depreciation. This may underestimate the true economic values of the assets. It also may over-estimate their true economic value because the assets can become obsolete.

For financial companies such as banks and insurance companies, their assets may be reported in current market value of the assets owned. Book values of financial companies are more accurate indicator of the economic value of the company.


Century Aluminum Co Book Value per Share Related Terms


Century Aluminum Co Book Value per Share Historical Data

* Premium members only.

The historical data trend for Century Aluminum Co's Book Value per Share 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.

Century Aluminum Co Book Value per Share Chart

Century Aluminum Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Book Value per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 4.08 4.08 3.52 7.11 6.95

Century Aluminum Co Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Book Value per Share 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 7.20 6.73 6.77 6.95 10.06

STU:EY3 vs CSTM, KALU, AA: Book Value per Share Comparison

For the Aluminum subindustry, Century Aluminum Co's PB Ratio, along with its competitors' market caps and PB Ratio data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


Century Aluminum Co PB Ratio vs Metals & Mining Industry

For the Metals & Mining industry and Basic Materials sector, Century Aluminum Co's PB Ratio distribution charts can be found below:

* The bar in red indicates where Century Aluminum Co's PB Ratio falls into.


STU:EY3
66GF Score
Century Aluminum Co STU:EY3
Book Value per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Century Aluminum Co Book Value per Share Calculation

Century Aluminum Co's Book Value Per Share for the fiscal year that ended in Dec. 2025 is calculated as:

Book Value Per Share=(Total Stockholders Equity-Preferred Stock)/Shares Outstanding (EOP)
=(688-0)/99
=6.95

Century Aluminum Co's Book Value Per Share for the quarter that ended in Mar. 2026 is calculated as:

Book Value Per Share=(Total Stockholders Equity-Preferred Stock)/Shares Outstanding (EOP)
=(996-0)/99
=10.06

* 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.

Theoretically it is what the shareholders will receive if the company is liquidated. Total Stockholders Equity is a balance sheet item and equal to Total Assets less Total Liabilities of the company.

Book value may include intangible items which may come from the company's past acquisitions. Book value less intangibles is called Tangible Book.

Frequently Asked Questions Learn more about Book Value per Share →
What does a Book Value per Share of €10.06 mean?
Century Aluminum Co (STU:EY3) has a Book Value per Share of €10.06 as of Mar. 2026. Book value per share gives the per-share value of a company's stockholder equity. View historical data on Century Aluminum Co and its competitors.
Is Century Aluminum Co's Book Value per Share too high?
Century Aluminum Co's current Book Value per Share is €10.06. Overall, Century Aluminum Co has a GF Score™ of 66/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Century Aluminum Co's Book Value per Share compare to CSTM and KALU?
Century Aluminum Co's Book Value per Share of €10.06 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 Book Value per Share for a Metals & Mining company?
A good Book Value per Share depends on the Metals & Mining industry context. However, Book Value per Share 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 Book Value per Share mean?
A high Book Value per Share can signal that a stock is expensive relative to its fundamentals. Book value per share gives the per-share value of a company's stockholder equity. View historical data on Century Aluminum Co and its competitors. Century Aluminum Co's current Book Value per Share is €10.06. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Century Aluminum Co stock overvalued right now?
Based on GuruFocus' analysis, Century Aluminum Co (STU:EY3) is currently considered Significantly Overvalued. The stock's GF Value™ is €19.34, compared to a current price of €37.02 — trading 91.4% above its estimated fair value. The current Book Value per Share is €10.06. Century Aluminum Co's overall GF Score™ is 66/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Book Value per Share calculated?
Book Value per Share is calculated from a company's financial statements. For Century Aluminum Co (STU:EY3), the current Book Value per Share is €10.06 as of Mar. 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 Century Aluminum Co (STU:EY3) Overvalued in 2026?

Based on GuruFocus' analysis, Century Aluminum Co stock appears to be overvalued. The current stock price of €37.02 is trading 91.4% above its estimated GF Value™ of €19.34. GuruFocus considers Century Aluminum Co to be Significantly Overvalued.

Key valuation signals for STU:EY3:

  • Book Value per Share: €10.06
  • GF Value™: €19.34 vs. price of €37.02 (91.4% above fair value)
  • GF Score™: 66/100 with 7 warning signs

No single metric tells the full story. See the STU:EY3 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Century Aluminum Co Business Description

Other Exchanges CENX:USA
Address One South Wacker Drive, Suite 1000, Chicago, IL, USA, 60606
Century Aluminum Co produces primary aluminum standard grade and value-added products. The firm operates smelter facilities in the United States and Iceland. The majority of revenue is generated from Glencore, which agreed to purchase nearly all of Century Aluminum's North American production. The company produces high purity aluminum, standard-grade aluminum sow and tee bars, and value-added billet and foundry products. The company also owns a carbon anode production facility in the Netherlands.
66GF Score

Get the complete analysis for STU:EY3

Book Value per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€37.02
Price
€19.34
GF Value