KAINOS LaboratoriesTSE:4556 39 PB Ratio is 1.38 as of Jul. 11, 2026, which is 64% above its 10-year median of 0.84. GuruFocus rates TSE:4556 with a GF Score™ of 39/100 and a GF Value™ of 円1,281.99 (Significantly Overvalued). The stock has 6 warning signs investors should review. Among 786 Medical Devices & Instruments companies, KAINOS Laboratories ranks better than 67.18% on this metric.
KAINOS Laboratories Inc stock PB Ratio (=1.38) is close to 10-year high of 1.45.
The historical rank and industry rank for KAINOS Laboratories's PB Ratio or its related term are showing as below:
TSE:4556'
s PB Ratio Range Over the Past 10 Years
Min: 0.64 Med: 0.84 Max: 1.45
Current: 1.38
During the past 13 years, KAINOS Laboratories's highest PB Ratio was 1.45. The lowest was 0.64. And the median was 0.84.
TSE:4556's PB Ratio is ranked better than 67.18% of 786
companies
in the Medical Devices & Instruments industry
Industry Median: 2.06
vs TSE:4556: 1.38
During the past 12 months, KAINOS Laboratories's average Book Value Per Share Growth Rate was 2.50% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was 6.60% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 8.00% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was 7.80% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of KAINOS Laboratories was 9.30% per year. The lowest was 2.80% per year. And the median was 7.05% per year.
Back to Basics: PB Ratio
KAINOS Laboratories (TSE:4556) 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.
KAINOS Laboratories PB Ratio Related Terms
KAINOS Laboratories PB Ratio Historical Data
* Premium members only.
The historical data trend for KAINOS Laboratories'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 Medical Instruments & Supplies subindustry, KAINOS Laboratories'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.
KAINOS Laboratories PB Ratio vs Medical Devices & Instruments Industry
For the Medical Devices & Instruments industry and Healthcare sector, KAINOS Laboratories's PB Ratio distribution charts can be found below:
* The bar in red indicates where KAINOS Laboratories'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.
KAINOS Laboratories (TSE:4556) has a PB Ratio of 1.38 as of Jul. 11, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on KAINOS Laboratories and its competitors. This is 64% above median its historical median of 0.84. Over the past decade, KAINOS Laboratories' PB Ratio has ranged from 0.64 to 1.45. According to the industry distribution chart, KAINOS Laboratories ranks #258 out of 786 companies in the Medical Devices & Instruments industry, placing it in the top 32.8%.
Is KAINOS Laboratories' PB Ratio too high?
KAINOS Laboratories' current PB Ratio of 1.38 is 64% above median its 10-year median of 0.84. Over the past 10 years, this metric has ranged from a low of 0.64 to a high of 1.45. The Medical Devices & Instruments industry median PB Ratio is 2.06. KAINOS Laboratories' value of 1.38 is 33% below this industry median. Based on the distribution chart, KAINOS Laboratories ranks #258 out of 786 companies in the Medical Devices & Instruments industry, which is above the industry midpoint. Overall, KAINOS Laboratories has a GF Score™ of 39/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does KAINOS Laboratories' PB Ratio compare to ISRG and BDX?
According to the Medical Devices & Instruments industry distribution chart, KAINOS Laboratories ranks #258 out of 786 companies for PB Ratio. This puts KAINOS Laboratories in the upper half of its industry. The industry median PB Ratio is 2.06. KAINOS Laboratories' value of 1.38 is 33% below this benchmark. Historically, KAINOS Laboratories' own PB Ratio has ranged from 0.64 to 1.45 over the past decade. While the company's 10-year median is 0.84 vs. the industry median of 2.06, KAINOS Laboratories 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 Medical Devices & Instruments company?
The median PB Ratio among Medical Devices & Instruments companies is 2.06, based on 786 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. KAINOS Laboratories's current PB Ratio of 1.38 is 33% 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 KAINOS Laboratories and its competitors. For the Medical Devices & Instruments industry, the median PB Ratio is 2.06 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. KAINOS Laboratories's current PB Ratio is 1.38, which is 64% above median its own 10-year median of 0.84. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is KAINOS Laboratories stock overvalued right now?
Based on GuruFocus' analysis, KAINOS Laboratories (TSE:4556) is currently considered Significantly Overvalued. The stock's GF Value™ is 円1,281.99, compared to a current price of 円2,268.00 — trading 76.9% above its estimated fair value. The current PB Ratio is 1.38, which is 64% above median its 10-year median of 0.84 and 33% below the Medical Devices & Instruments industry median of 2.06. KAINOS Laboratories' overall GF Score™ is 39/100 with 6 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 KAINOS Laboratories (TSE:4556), the current PB Ratio is 1.38 as of Jul. 11, 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 KAINOS Laboratories (TSE:4556) Overvalued in 2026?
Based on GuruFocus' analysis, KAINOS Laboratories stock appears to be overvalued.
The current stock price of 円2,268.00 is trading 76.9% above its estimated GF Value™ of 円1,281.99.
GuruFocus considers KAINOS Laboratories to be Significantly Overvalued.
Key valuation signals for TSE:4556:
PB Ratio: 1.38 (64% above median its 10-year median of 0.84)
GF Value™: 円1,281.99 vs. price of 円2,268.00 (76.9% above fair value)
Industry Position: 33% below the Medical Devices & Instruments median (#258 of 786)
No single metric tells the full story. See the TSE:4556 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
KAINOS Laboratories Inc is focused on the development, manufacture, marketing, distribution, and import/export of pharmaceuticals, diagnostic reagents, and related chemical products. It also manufactures, sells, and exports/imports physicochemical measuring equipment for medical use.
39GF Score
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