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Diamond Electric Holdings CoTSE:6699 -1.03%53 PB Ratio is 0.36 as of Jul. 23, 2026, which is 39% below its 10-year median of 0.59. GuruFocus rates TSE:6699 with a GF Score™ of 53/100 and a GF Value™ of 円634.90 (Modestly Undervalued). The stock has 3 warning signs investors should review. Among 1,293 Vehicles & Parts companies, Diamond Electric Holdings Co ranks better than 89.1% on this metric.
Diamond Electric Holdings Co Ltd stock PB Ratio (=0.36) is close to 5-year low of 0.35.
The historical rank and industry rank for Diamond Electric Holdings Co's PB Ratio or its related term are showing as below:
TSE:6699'
s PB Ratio Range Over the Past 10 Years
Min: 0.2 Med: 0.59 Max: 4.1
Current: 0.36
During the past 8 years, Diamond Electric Holdings Co's highest PB Ratio was 4.10. The lowest was 0.20. And the median was 0.59.
TSE:6699's PB Ratio is ranked better than 89.1% of 1293
companies
in the Vehicles & Parts industry
Industry Median: 1.37
vs TSE:6699: 0.36
During the past 12 months, Diamond Electric Holdings Co's average Book Value Per Share Growth Rate was -1.60% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was 1.20% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 3.50% per year.
During the past 8 years, the highest 3-Year average Book Value Per Share Growth Rate of Diamond Electric Holdings Co was 13.70% per year. The lowest was -11.50% per year. And the median was 1.20% per year.
Back to Basics: PB Ratio
Diamond Electric Holdings Co (TSE:6699) 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.
Diamond Electric Holdings Co PB Ratio Related Terms
Diamond Electric Holdings Co PB Ratio Historical Data
* 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 Auto Parts subindustry, Diamond Electric Holdings 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.
Diamond Electric Holdings Co PB Ratio vs Vehicles & Parts Industry
For the Vehicles & Parts industry and Consumer Cyclical sector, Diamond Electric Holdings Co's PB Ratio distribution charts can be found below:
* The bar in red indicates where Diamond Electric Holdings 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.
* 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.
Diamond Electric Holdings Co (TSE:6699) has a PB Ratio of 0.36 as of Jul. 23, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Diamond Electric Holdings Co and its competitors. This is 39% below median its historical median of 0.59. Over the past decade, Diamond Electric Holdings Co's PB Ratio has ranged from 0.20 to 4.10. According to the industry distribution chart, Diamond Electric Holdings Co ranks #141 out of 1293 companies in the Vehicles & Parts industry, placing it in the top 10.9%.
Is Diamond Electric Holdings Co's PB Ratio too high?
Diamond Electric Holdings Co's current PB Ratio of 0.36 is 39% below median its 10-year median of 0.59. Over the past 10 years, this metric has ranged from a low of 0.20 to a high of 4.10. The Vehicles & Parts industry median PB Ratio is 1.37. Diamond Electric Holdings Co's value of 0.36 is 73.7% below this industry median. Based on the distribution chart, Diamond Electric Holdings Co ranks #141 out of 1293 companies in the Vehicles & Parts industry, which is in the top quartile — a strong position relative to peers. Overall, Diamond Electric Holdings Co has a GF Score™ of 53/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Diamond Electric Holdings Co's PB Ratio compare to ORLY and AZO?
According to the Vehicles & Parts industry distribution chart, Diamond Electric Holdings Co ranks #141 out of 1293 companies for PB Ratio. This places Diamond Electric Holdings Co in the top 11% of its industry — outperforming the majority of peers. The industry median PB Ratio is 1.37. Diamond Electric Holdings Co's value of 0.36 is 73.7% below this benchmark. Historically, Diamond Electric Holdings Co's own PB Ratio has ranged from 0.20 to 4.10 over the past decade. While the company's 10-year median is 0.59 vs. the industry median of 1.37, Diamond Electric Holdings 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 Vehicles & Parts company?
The median PB Ratio among Vehicles & Parts companies is 1.37, based on 1,293 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. Diamond Electric Holdings Co's current PB Ratio of 0.36 is 73.7% 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 Diamond Electric Holdings Co and its competitors. For the Vehicles & Parts industry, the median PB Ratio is 1.37 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Diamond Electric Holdings Co's current PB Ratio is 0.36, which is 39% below median its own 10-year median of 0.59. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Diamond Electric Holdings Co stock overvalued right now?
Based on GuruFocus' analysis, Diamond Electric Holdings Co (TSE:6699) is currently considered Modestly Undervalued. The stock's GF Value™ is 円634.90, compared to a current price of 円480.00 — trading 24.4% below its estimated fair value. The current PB Ratio is 0.36, which is 39% below median its 10-year median of 0.59 and 73.7% below the Vehicles & Parts industry median of 1.37. Diamond Electric Holdings Co's overall GF Score™ is 53/100 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 Diamond Electric Holdings Co (TSE:6699), the current PB Ratio is 0.36 as of Jul. 23, 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 Diamond Electric Holdings Co (TSE:6699) Overvalued in 2026?
Based on GuruFocus' analysis, Diamond Electric Holdings Co stock appears to be undervalued.
The current stock price of 円480.00 is trading 24.4% below its estimated GF Value™ of 円634.90.
GuruFocus considers Diamond Electric Holdings Co to be Modestly Undervalued.
Key valuation signals for TSE:6699:
PB Ratio: 0.36 (39% below median its 10-year median of 0.59)
GF Value™: 円634.90 vs. price of 円480.00 (24.4% below fair value)
Industry Position: 73.7% below the Vehicles & Parts median (#141 of 1293)
No single metric tells the full story. See the TSE:6699 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Diamond Electric Holdings Co Ltd is engaged in the manufacture and sale of electronic and energy-related components. The company has three reportable segments: Automotive Equipment Business, Energy Solutions Business, and Electronic Equipment Business. The Automotive Equipment segment manufactures ignition coils, transmission switches, rotation sensors, and in-vehicle control boards. The Energy Solutions segment produces power conditioners for solar power generation and energy storage hybrid systems. The Electronic Equipment segment manufactures electronic control devices for fan heaters, air conditioners, water heaters, and other related products such as ignition devices and power conditioners.
53GF Score
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