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Nac CoTSE:9788 +0.57%69 PB Ratio is 0.96 as of Jul. 25, 2026, which is 9% below its 10-year median of 1.05. GuruFocus rates TSE:9788 with a GF Score™ of 69/100 and a GF Value™ of 円588.40 (Fairly Valued). The stock has 3 warning signs investors should review. Among 1,722 Construction companies, Nac Co ranks better than 63.12% 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 (2026-07-25), Nac Co's share price is 円533.00. Nac Co's Book Value per Share for the quarter that ended in Mar. 2026 was 円552.62. Hence, Nac Co's PB Ratio of today is 0.96.
Good Sign:
Nac Co Ltd stock PB Ratio (=0.97) is close to 5-year low of 0.88.
The historical rank and industry rank for Nac Co's PB Ratio or its related term are showing as below:
TSE:9788'
s PB Ratio Range Over the Past 10 Years
Min: 0.81 Med: 1.05 Max: 1.5
Current: 0.96
During the past 13 years, Nac Co's highest PB Ratio was 1.50. The lowest was 0.81. And the median was 1.05.
TSE:9788's PB Ratio is ranked better than 63.12% of 1722
companies
in the Construction industry
Industry Median: 1.32
vs TSE:9788: 0.96
During the past 12 months, Nac Co's average Book Value Per Share Growth Rate was 3.00% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was 2.20% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 3.00% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was 2.30% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of Nac Co was 17.40% per year. The lowest was -4.40% per year. And the median was 3.90% 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.
Nac Co PB Ratio Related Terms
Nac Co PB Ratio Historical Data
* Premium members only.
The historical data trend for Nac Co'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 Engineering & Construction subindustry, Nac 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.
Nac Co PB Ratio vs Construction Industry
For the Construction industry and Industrials sector, Nac Co's PB Ratio distribution charts can be found below:
* The bar in red indicates where Nac Co'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.
Nac Co'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.
Nac Co (TSE:9788) has a PB Ratio of 0.96 as of Jul. 25, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Nac Co and its competitors. This is near median its historical median of 1.05. Over the past decade, Nac Co's PB Ratio has ranged from 0.81 to 1.50. According to the industry distribution chart, Nac Co ranks #635 out of 1722 companies in the Construction industry, placing it in the top 36.9%.
Is Nac Co's PB Ratio too high?
Nac Co's current PB Ratio of 0.96 is near median its 10-year median of 1.05. Over the past 10 years, this metric has ranged from a low of 0.81 to a high of 1.50. The Construction industry median PB Ratio is 1.32. Nac Co's value of 0.96 is 27.3% below this industry median. Based on the distribution chart, Nac Co ranks #635 out of 1722 companies in the Construction industry, which is above the industry midpoint. Overall, Nac Co has a GF Score™ of 69/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Nac Co's PB Ratio compare to PWR and FIX?
According to the Construction industry distribution chart, Nac Co ranks #635 out of 1722 companies for PB Ratio. This puts Nac Co in the upper half of its industry. The industry median PB Ratio is 1.32. Nac Co's value of 0.96 is 27.3% below this benchmark. Historically, Nac Co's own PB Ratio has ranged from 0.81 to 1.50 over the past decade. While the company's 10-year median is 1.05 vs. the industry median of 1.32, Nac Co 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 Construction company?
The median PB Ratio among Construction companies is 1.32, based on 1,722 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. Nac Co's current PB Ratio of 0.96 is 27.3% 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 Nac Co and its competitors. For the Construction industry, the median PB Ratio is 1.32 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Nac Co's current PB Ratio is 0.96, which is near median its own 10-year median of 1.05. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Nac Co stock overvalued right now?
Based on GuruFocus' analysis, Nac Co (TSE:9788) is currently considered Fairly Valued. The stock's GF Value™ is 円588.40, compared to a current price of 円533.00 — trading 9.4% below its estimated fair value. The current PB Ratio is 0.96, which is near median its 10-year median of 1.05 and 27.3% below the Construction industry median of 1.32. Nac Co's overall GF Score™ is 69/100 with 3 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 Nac Co (TSE:9788), the current PB Ratio is 0.96 as of Jul. 25, 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 Nac Co (TSE:9788) Overvalued in 2026?
Based on GuruFocus' analysis, Nac Co stock appears to be undervalued.
The current stock price of 円533.00 is trading 9.4% below its estimated GF Value™ of 円588.40.
GuruFocus considers Nac Co to be Fairly Valued.
Key valuation signals for TSE:9788:
PB Ratio: 0.96 (near median its 10-year median of 1.05)
GF Value™: 円588.40 vs. price of 円533.00 (9.4% below fair value)
Industry Position: 27.3% below the Construction median (#635 of 1722)
No single metric tells the full story. See the TSE:9788 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Nac Co Ltd engages in the operation of housing maintenance and construction business in Japan. The company's operating division include Production and sales of home delivery water, Rental business, Construction consulting business, Housing business, and Beauty and health business.
69GF Score
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