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Cosmo Bio CoTSE:3386 72 PE Ratio (TTM) is 20.82 as of Jul. 18, 2026, which is 10% below its 10-year median of 23.22. GuruFocus rates TSE:3386 with a GF Score™ of 72/100 and a GF Value™ of 円1,248.34 (Fairly Valued). The stock has 4 warning signs investors should review. Among 94 Medical Diagnostics & Research companies, Cosmo Bio Co ranks better than 71.28% on this metric.
The PE Ratio (TTM), or Price-to-Earnings ratio, or P/E Ratio, is a financial ratio used to compare a company's market price to its Earnings per Share (Diluted). As of today (2026-07-18), Cosmo Bio Co's share price is
円1234.00.
Cosmo Bio Co's Earnings per Share (Diluted) for the trailing twelve months (TTM) ended in Dec. 2025 was 円59.26. Therefore, Cosmo Bio Co's PE Ratio (TTM) for today is 20.82.
Good Sign:
Cosmo Bio Co Ltd stock PE Ratio (=20.82) is close to 1-year low of 20.64.
The historical rank and industry rank for Cosmo Bio Co's PE Ratio (TTM) or its related term are showing as below:
TSE:3386'
s PE Ratio (TTM) Range Over the Past 10 Years
Min: 7.69 Med: 23.22 Max: 41.27
Current: 20.82
During the past 13 years, the highest PE Ratio (TTM) of Cosmo Bio Co was 41.27. The lowest was 7.69. And the median was 23.22.
TSE:3386's PE Ratio (TTM) is ranked better than 71.28% of 94
companies
in the Medical Diagnostics & Research industry
Industry Median: 33.06
vs TSE:3386: 20.82
Cosmo Bio Co's EPS without NRI for the
six
months ended in Dec. 2025 was 円15.10.
Its EPS without NRI for the trailing twelve months (TTM) ended in Dec. 2025 was 円55.86.
During the past 12 months, Cosmo Bio Co's average EPS without NRIGrowth Rate was 25.00% per year.
During the past 3 years, the average EPS without NRIGrowth Rate was -15.30% per year.
During the past 5 years, the average EPS without NRIGrowth Rate was -15.50% per year.
During the past 10 years, the average EPS without NRIGrowth Rate was 7.20% per year.
During the past 13 years, Cosmo Bio Co's highest 3-Year average EPS without NRI Growth Rate was 54.90% per year. The lowest was -29.30% per year. And the median was -3.90% per year.
Cosmo Bio Co's EPS (Basic) for the
six
months ended in Dec. 2025 was 円15.23.
Its EPS (Basic) for the trailing twelve months (TTM) ended in Dec. 2025 was 円59.26.
Cosmo Bio Co (TSE:3386) PE Ratio (TTM) Explanation
The PE Ratio (TTM) can be viewed as the number of years it takes for the company to earn back the price you pay for the stock. For example, if a company earns $2 a share per year, and the stock is traded at $30, the PE Ratio (TTM) is 15. Therefore it takes 15 years for the company to earn back the $30 you paid for its stock, assuming the earnings stays constant over the next 15 years.
In real business, earnings never stay constant. If a company can grow its earnings, it takes fewer years for the company to earn back the price you pay for the stock. If a company's earnings decline it takes more years. As a shareholder, you want the company to earn back the price you pay as soon as possible. Therefore, lower P/E stocks are more attractive than higher P/E stocks so long as the PE Ratio (TTM) is positive. Also for stocks with the same PE Ratio (TTM), the one with faster growth business is more attractive.
If a company loses money, the PE Ratio (TTM) becomes meaningless.
To compare stocks with different growth rates, Peter Lynch invented a ratio called PEG Ratio. PEG Ratio is defined as the PE Ratio (TTM) divided by the growth ratio. He thinks a company with a PE Ratio (TTM) equal to its growth rate is fairly valued. Still he said he would rather buy a company growing 20% a year with a PE Ratio (TTM) of 20, instead of a company growing 10% a year with a PE Ratio (TTM) of 10.
Because the PE Ratio (TTM) measures how long it takes to earn back the price you pay, the PE Ratio (TTM) can be applied to the stocks across different industries. That is why it is the one of the most important and widely used indicators for the valuation of stocks.
Investors need to be aware that the PE Ratio (TTM) can be misleading a lot of times, especially when the underlying business is cyclical and unpredictable. As Peter Lynch pointed out, cyclical businesses have higher profit margins at the peaks of the business cycles. Their earnings are high and PE Ratio (TTM)s are artificially low. It is usually a bad idea to buy a cyclical business when the PE Ratio (TTM) is low. A better ratio to identify the time to buy a cyclical businesses is the PS Ratio .
PE Ratio (TTM) can also be affected by non-recurring-items such as the sale of part of businesses. This may increase for the current year or quarter dramatically. But it cannot be repeated over and over. Therefore PE Ratio without NRI is a more accurate indication of valuation than PE Ratio (TTM).
Cosmo Bio Co PE Ratio (TTM) Related Terms
Cosmo Bio Co PE Ratio (TTM) Historical Data
* Premium members only.
The historical data trend for Cosmo Bio Co's PE Ratio (TTM) 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.
TSE:3386 vs TMO, DHR, IDXX: PE Ratio (TTM) Comparison
For the Diagnostics & Research subindustry, Cosmo Bio Co's PE Ratio (TTM), along with its competitors' market caps and PE Ratio (TTM) 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.
Cosmo Bio Co PE Ratio (TTM) vs Medical Diagnostics & Research Industry
For the Medical Diagnostics & Research industry and Healthcare sector, Cosmo Bio Co's PE Ratio (TTM) distribution charts can be found below:
* The bar in red indicates where Cosmo Bio Co's PE Ratio (TTM) falls into.
The PE Ratio (TTM), or Price-to-Earnings ratio, or P/E Ratio, is a financial ratio used to compare a company's market price to its Earnings per Share (Diluted). It is the most widely used ratio in the valuation of stocks.
Cosmo Bio Co's PE Ratio (TTM) for today is calculated as
Cosmo Bio Co's Share Price of today is 円1234.00.
For company reported semi-annually, Cosmo Bio Co's Earnings per Share (Diluted) for the trailing twelve months (TTM) ended in Dec. 2025 adds up the semi-annually data reported by the company within the most recent 12 months, which was 円59.26.
* 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:
There are at least three kinds of PE Ratio (TTM)s used by different investors. They are Trailing Twelve Month PE Ratio (TTM) or PE Ratio (TTM) (TTM), Forward PE Ratio, or PE Ratio without NRI. A new PE Ratio (TTM) based on inflation-adjusted normalized PE Ratio (TTM) is called Shiller PE Ratio, after Yale professor Robert Shiller.
In the calculation of PE Ratio (TTM), the earnings per share used are the earnings per share over the past 12 months. For Forward PE Ratio, the earnings are the expected earnings for the next twelve months. In the case of PE Ratio without NRI, the reported earnings less the non-recurring items are used.
For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. Since it looks at the average over the last 10 years, Shiller PE Ratio is also called PE10.
Cosmo Bio Co (TSE:3386) has a PE Ratio (TTM) of 20.82 as of Jul. 18, 2026. Trailing 12-month P/E ratio is the ratio of share price to a company's trailing 12-month earnings per share. View historical data on Cosmo Bio Co and its competitors. This is 10% below median its historical median of 23.22. Over the past decade, Cosmo Bio Co's PE Ratio (TTM) has ranged from 7.69 to 41.27. According to the industry distribution chart, Cosmo Bio Co ranks #27 out of 94 companies in the Medical Diagnostics & Research industry, placing it in the top 28.7%.
Is Cosmo Bio Co's PE Ratio (TTM) too high?
Cosmo Bio Co's current PE Ratio (TTM) of 20.82 is 10% below median its 10-year median of 23.22. Over the past 10 years, this metric has ranged from a low of 7.69 to a high of 41.27. The Medical Diagnostics & Research industry median PE Ratio (TTM) is 33.06. Cosmo Bio Co's value of 20.82 is 37% below this industry median. Based on the distribution chart, Cosmo Bio Co ranks #27 out of 94 companies in the Medical Diagnostics & Research industry, which is above the industry midpoint. Overall, Cosmo Bio Co has a GF Score™ of 72/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Cosmo Bio Co's PE Ratio (TTM) compare to TMO and DHR?
According to the Medical Diagnostics & Research industry distribution chart, Cosmo Bio Co ranks #27 out of 94 companies for PE Ratio (TTM). This puts Cosmo Bio Co in the upper half of its industry. The industry median PE Ratio (TTM) is 33.06. Cosmo Bio Co's value of 20.82 is 37% below this benchmark. Historically, Cosmo Bio Co's own PE Ratio (TTM) has ranged from 7.69 to 41.27 over the past decade. While the company's 10-year median is 23.22 vs. the industry median of 33.06, Cosmo Bio 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 PE Ratio (TTM) for a Medical Diagnostics & Research company?
The median PE Ratio (TTM) among Medical Diagnostics & Research companies is 33.06, based on 94 companies in the industry. Companies in the top quartile (top 25%) have a PE Ratio (TTM) significantly above this median, while those in the bottom quartile fall well below. However, PE Ratio (TTM) should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Cosmo Bio Co's current PE Ratio (TTM) of 20.82 is 37% 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 PE Ratio (TTM) mean?
A high PE Ratio (TTM) can signal that a stock is expensive relative to its fundamentals. Trailing 12-month P/E ratio is the ratio of share price to a company's trailing 12-month earnings per share. View historical data on Cosmo Bio Co and its competitors. For the Medical Diagnostics & Research industry, the median PE Ratio (TTM) is 33.06 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Cosmo Bio Co's current PE Ratio (TTM) is 20.82, which is 10% below median its own 10-year median of 23.22. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Cosmo Bio Co stock overvalued right now?
Based on GuruFocus' analysis, Cosmo Bio Co (TSE:3386) is currently considered Fairly Valued. The stock's GF Value™ is 円1,248.34, compared to a current price of 円1,234.00 — trading 1.1% below its estimated fair value. The current PE Ratio (TTM) is 20.82, which is 10% below median its 10-year median of 23.22 and 37% below the Medical Diagnostics & Research industry median of 33.06. Cosmo Bio Co's overall GF Score™ is 72/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PE Ratio (TTM) calculated?
PE Ratio (TTM) is calculated from a company's financial statements. For Cosmo Bio Co (TSE:3386), the current PE Ratio (TTM) is 20.82 as of Jul. 18, 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 Cosmo Bio Co (TSE:3386) Overvalued in 2026?
Based on GuruFocus' analysis, Cosmo Bio Co stock appears to be undervalued.
The current stock price of 円1,234.00 is trading 1.1% below its estimated GF Value™ of 円1,248.34.
GuruFocus considers Cosmo Bio Co to be Fairly Valued.
Key valuation signals for TSE:3386:
PE Ratio (TTM): 20.82 (10% below median its 10-year median of 23.22)
GF Value™: 円1,248.34 vs. price of 円1,234.00 (1.1% below fair value)
Industry Position: 37% below the Medical Diagnostics & Research median (#27 of 94)
No single metric tells the full story. See the TSE:3386 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Cosmo Bio Co Ltd is a diagnostic and research company based in Japan. The business of the company includes the purchase of reagents, instruments, and clinical test drugs for research in life science and domestic sales.
72GF Score
Get the complete analysis for TSE:3386
PE Ratio (TTM) is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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