Algoma Steel GroupASTL -3.86%59 PB Ratio is 1.67 as of Jun. 24, 2026, which is 114% above its 10-year median of 0.78. GuruFocus rates ASTL with a GF Score™ of 59/100 and a GF Value™ of $5.50 (Modestly Undervalued). The stock has 7 warning signs investors should review. Among 613 Steel companies, Algoma Steel Group ranks worse than 74.55% on this metric.
The historical rank and industry rank for Algoma Steel Group's PB Ratio or its related term are showing as below:
ASTL'
s PB Ratio Range Over the Past 10 Years
Min: 0.45 Med: 0.78 Max: 2.37
Current: 1.73
During the past 6 years, Algoma Steel Group's highest PB Ratio was 2.37. The lowest was 0.45. And the median was 0.78.
ASTL's PB Ratio is ranked worse than 74.55% of 613
companies
in the Steel industry
Industry Median: 0.99
vs ASTL: 1.73
During the past 12 months, Algoma Steel Group's average Book Value Per Share Growth Rate was -76.80% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was -24.10% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 32.20% per year.
During the past 6 years, the highest 3-Year average Book Value Per Share Growth Rate of Algoma Steel Group was 110.30% per year. The lowest was -24.10% per year. And the median was 74.10% per year.
Back to Basics: PB Ratio
Algoma Steel Group (NAS:ASTL) PB Ratio Explanation
The PB Ratio works the best for the businesses that earn most of their profit from their assets, e.g. banks and insurance companies.
Be Aware
Some businesses have very light assets, such as software companies or insurance agencies. The PB Ratio does not work well for these companies. Some companies even have negative equity, so the PB Ratio cannot be applied to them.
Algoma Steel Group PB Ratio Related Terms
Algoma Steel Group PB Ratio Historical Data
* Premium members only.
The historical data trend for Algoma Steel Group's PB 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.
For the Steel subindustry, Algoma Steel Group'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.
Algoma Steel Group PB Ratio vs Steel Industry
For the Steel industry and Basic Materials sector, Algoma Steel Group's PB Ratio distribution charts can be found below:
* The bar in red indicates where Algoma Steel Group's PB Ratio falls into.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. It is a ratio widely used to value stocks.
* 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.
It can also be calculated from the numbers for the whole company:
A closely related ratio is called Price-to-Tangible-Book. The difference between Price-to-Tangible-Book and PB Ratio is that book value other than intangibles are used in the calculation.
Algoma Steel Group (ASTL) has a PB Ratio of 1.67 as of Jun. 24, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Algoma Steel Group and its competitors. This is 114% above median its historical median of 0.78. Over the past decade, Algoma Steel Group's PB Ratio has ranged from 0.45 to 2.37. According to the industry distribution chart, Algoma Steel Group ranks #457 out of 613 companies in the Steel industry, placing it in the top 74.6%.
Is Algoma Steel Group's PB Ratio too high?
Algoma Steel Group's current PB Ratio of 1.67 is 114% above median its 10-year median of 0.78. Over the past 10 years, this metric has ranged from a low of 0.45 to a high of 2.37. The Steel industry median PB Ratio is 0.99. Algoma Steel Group's value of 1.67 is 68.7% above this industry median. Based on the distribution chart, Algoma Steel Group ranks #457 out of 613 companies in the Steel industry, which is below the industry midpoint. Overall, Algoma Steel Group has a GF Score™ of 59/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Algoma Steel Group's PB Ratio compare to NUE and STLD?
According to the Steel industry distribution chart, Algoma Steel Group ranks #457 out of 613 companies for PB Ratio. This places Algoma Steel Group in the lower half of its industry. The industry median PB Ratio is 0.99. Algoma Steel Group's value of 1.67 is 68.7% above this benchmark. Historically, Algoma Steel Group's own PB Ratio has ranged from 0.45 to 2.37 over the past decade. While the company's 10-year median is 0.78 vs. the industry median of 0.99, Algoma Steel Group has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good PB Ratio for a Steel company?
The median PB Ratio among Steel companies is 0.99, based on 613 companies in the industry. Companies in the top quartile (top 25%) have a PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Algoma Steel Group's current PB Ratio of 1.67 is 68.7% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high PB Ratio mean?
A high PB Ratio can signal that a stock is expensive relative to its fundamentals. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Algoma Steel Group and its competitors. For the Steel industry, the median PB Ratio is 0.99 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Algoma Steel Group's current PB Ratio is 1.67, which is 114% above median its own 10-year median of 0.78. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Algoma Steel Group stock overvalued right now?
Based on GuruFocus' analysis, Algoma Steel Group (ASTL) is currently considered Modestly Undervalued. The stock's GF Value™ is $5.50, compared to a current price of $3.99 — trading 27.5% below its estimated fair value. The current PB Ratio is 1.67, which is 114% above median its 10-year median of 0.78 and 68.7% above the Steel industry median of 0.99. Algoma Steel Group's overall GF Score™ is 59/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PB Ratio calculated?
PB Ratio is calculated from a company's financial statements. For Algoma Steel Group (ASTL), the current PB Ratio is 1.67 as of Jun. 24, 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 Algoma Steel Group (ASTL) Overvalued in 2026?
Based on GuruFocus' analysis, Algoma Steel Group stock appears to be undervalued.
The current stock price of $3.99 is trading 27.5% below its estimated GF Value™ of $5.50.
GuruFocus considers Algoma Steel Group to be Modestly Undervalued.
Key valuation signals for ASTL:
PB Ratio: 1.67 (114% above median its 10-year median of 0.78)
GF Value™: $5.50 vs. price of $3.99 (27.5% below fair value)
Industry Position: 68.7% above the Steel median (#457 of 613)
No single metric tells the full story. See the ASTL stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Algoma Steel Group Inc is a fully integrated steel producer of hot and cold rolled steel products, including coiled sheet and plate, strategically located. The firm operates in a single segment of basic steel production including sheets, plates, slabs, and freights. The company's revenue is generated from contracts to produce, ship, and deliver steel products Geographically it serves Canada, the United States, and the rest of the world, whilst driving key revenue from United States. The company generates the majority of its revenue from the sale of Steel sheets and strips.
59GF Score
Get the complete analysis for ASTL
PB Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
ASTL has been successfully added to your 
