Norsk Hydro ASAOSTO:NHYO -0.75%88 PB Ratio is 1.72 as of Jun. 29, 2026, which is 41% above its 10-year median of 1.22. GuruFocus rates OSTO:NHYO with a GF Score™ of 88/100 and a GF Value™ of kr68.57 (Significantly Overvalued). The stock has 2 warning signs investors should review. Among 2,357 Metals & Mining companies, Norsk Hydro ASA ranks better than 60.71% on this metric.
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. As of today (2026-06-29), Norsk Hydro ASA's share price is kr89.50. Norsk Hydro ASA's Book Value per Share for the quarter that ended in Mar. 2026 was kr52.16. Hence, Norsk Hydro ASA's PB Ratio of today is 1.72.
The historical rank and industry rank for Norsk Hydro ASA's PB Ratio or its related term are showing as below:
OSTO:NHYo'
s PB Ratio Range Over the Past 10 Years
Min: 0.51 Med: 1.22 Max: 2.22
Current: 1.71
During the past 13 years, Norsk Hydro ASA's highest PB Ratio was 2.22. The lowest was 0.51. And the median was 1.22.
OSTO:NHYo's PB Ratio is ranked better than 60.71% of 2357
companies
in the Metals & Mining industry
Industry Median: 2.27
vs OSTO:NHYo: 1.71
During the past 12 months, Norsk Hydro ASA's average Book Value Per Share Growth Rate was 0.60% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was 0.40% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 7.00% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was 3.30% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of Norsk Hydro ASA was 77.40% per year. The lowest was -21.10% per year. And the median was 5.30% per year.
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.
Norsk Hydro ASA PB Ratio Related Terms
Norsk Hydro ASA PB Ratio Historical Data
* Premium members only.
The historical data trend for Norsk Hydro ASA'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 Aluminum subindustry, Norsk Hydro ASA'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.
Norsk Hydro ASA PB Ratio vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, Norsk Hydro ASA's PB Ratio distribution charts can be found below:
* The bar in red indicates where Norsk Hydro ASA'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.
Norsk Hydro ASA's PB Ratio for today is calculated as follows:
* 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.
Norsk Hydro ASA (OSTO:NHYO) has a PB Ratio of 1.72 as of Jun. 29, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Norsk Hydro ASA and its competitors. This is 41% above median its historical median of 1.22. Over the past decade, Norsk Hydro ASA's PB Ratio has ranged from 0.51 to 2.22. According to the industry distribution chart, Norsk Hydro ASA ranks #926 out of 2357 companies in the Metals & Mining industry, placing it in the top 39.3%.
Is Norsk Hydro ASA's PB Ratio too high?
Norsk Hydro ASA's current PB Ratio of 1.72 is 41% above median its 10-year median of 1.22. Over the past 10 years, this metric has ranged from a low of 0.51 to a high of 2.22. The Metals & Mining industry median PB Ratio is 2.27. Norsk Hydro ASA's value of 1.72 is 24.2% below this industry median. Based on the distribution chart, Norsk Hydro ASA ranks #926 out of 2357 companies in the Metals & Mining industry, which is above the industry midpoint. Overall, Norsk Hydro ASA has a GF Score™ of 88/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Norsk Hydro ASA's PB Ratio compare to AA and CENX?
According to the Metals & Mining industry distribution chart, Norsk Hydro ASA ranks #926 out of 2357 companies for PB Ratio. This puts Norsk Hydro ASA in the upper half of its industry. The industry median PB Ratio is 2.27. Norsk Hydro ASA's value of 1.72 is 24.2% below this benchmark. Historically, Norsk Hydro ASA's own PB Ratio has ranged from 0.51 to 2.22 over the past decade. While the company's 10-year median is 1.22 vs. the industry median of 2.27, Norsk Hydro ASA has consistently been below 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 Metals & Mining company?
The median PB Ratio among Metals & Mining companies is 2.27, based on 2,357 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. Norsk Hydro ASA's current PB Ratio of 1.72 is 24.2% below 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 Norsk Hydro ASA and its competitors. For the Metals & Mining industry, the median PB Ratio is 2.27 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Norsk Hydro ASA's current PB Ratio is 1.72, which is 41% above median its own 10-year median of 1.22. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Norsk Hydro ASA stock overvalued right now?
Based on GuruFocus' analysis, Norsk Hydro ASA (OSTO:NHYO) is currently considered Significantly Overvalued. The stock's GF Value™ is kr68.57, compared to a current price of kr89.50 — trading 30.5% above its estimated fair value. The current PB Ratio is 1.72, which is 41% above median its 10-year median of 1.22 and 24.2% below the Metals & Mining industry median of 2.27. Norsk Hydro ASA's overall GF Score™ is 88/100 with 2 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 Norsk Hydro ASA (OSTO:NHYO), the current PB Ratio is 1.72 as of Jun. 29, 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 Norsk Hydro ASA (OSTO:NHYO) Overvalued in 2026?
Based on GuruFocus' analysis, Norsk Hydro ASA stock appears to be overvalued.
The current stock price of kr89.50 is trading 30.5% above its estimated GF Value™ of kr68.57.
GuruFocus considers Norsk Hydro ASA to be Significantly Overvalued.
Key valuation signals for OSTO:NHYO:
PB Ratio: 1.72 (41% above median its 10-year median of 1.22)
GF Value™: kr68.57 vs. price of kr89.50 (30.5% above fair value)
Industry Position: 24.2% below the Metals & Mining median (#926 of 2357)
No single metric tells the full story. See the OSTO:NHYO stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Norsk Hydro ASA is an aluminium and renewable energy company. The company owns and operates businesses and holds investments in sustainable industries. Its operations span multiple market segments, including aluminum, energy, metal recycling, renewable energy, and batteries, providing expertise across these areas. The company's reportable segments are Hydro Bauxite & Alumina, Hydro Energy, Hydro Aluminium Metal and Hydro Extrusions and Hydro Metal Markets activities. The majority of the company's revenue is derived from the Hydro Extrusions segment, which delivers products within extruded profiles, building systems and precision tubing, and operates several recycling facilities, both integrated with its extrusion plants and separate plants.
88GF Score
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