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Precision OpticsPOCI -3.60%73 PB Ratio is 2.47 as of Jul. 16, 2026, which is 52% below its 10-year median of 5.10. GuruFocus rates POCI with a GF Score™ of 73/100 and a GF Value™ of $6.34 (Modestly Undervalued). The stock has 5 warning signs investors should review. Among 787 Medical Devices & Instruments companies, Precision Optics ranks worse than 57.18% 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 (2026-07-16), Precision Optics's share price is $4.55. Precision Optics's Book Value per Share for the quarter that ended in Mar. 2026 was $1.84. Hence, Precision Optics's PB Ratio of today is 2.47.
The historical rank and industry rank for Precision Optics's PB Ratio or its related term are showing as below:
POCI'
s PB Ratio Range Over the Past 10 Years
Min: 2.26 Med: 5.1 Max: 28.92
Current: 2.47
During the past 13 years, Precision Optics's highest PB Ratio was 28.92. The lowest was 2.26. And the median was 5.10.
POCI's PB Ratio is ranked worse than 57.18% of 787
companies
in the Medical Devices & Instruments industry
Industry Median: 2.05
vs POCI: 2.47
During the past 12 months, Precision Optics's average Book Value Per Share Growth Rate was 7.00% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 22.60% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was 28.40% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of Precision Optics was 67.10% per year. The lowest was -61.60% per year. And the median was -2.80% 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.
Precision Optics PB Ratio Related Terms
Precision Optics PB Ratio Historical Data
* Premium members only.
The historical data trend for Precision Optics'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, Precision Optics'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.
Precision Optics PB Ratio vs Medical Devices & Instruments Industry
For the Medical Devices & Instruments industry and Healthcare sector, Precision Optics's PB Ratio distribution charts can be found below:
* The bar in red indicates where Precision Optics'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.
Precision Optics (POCI) has a PB Ratio of 2.47 as of Jul. 16, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Precision Optics and its competitors. This is 52% below median its historical median of 5.10. Over the past decade, Precision Optics' PB Ratio has ranged from 2.26 to 28.92. According to the industry distribution chart, Precision Optics ranks #450 out of 787 companies in the Medical Devices & Instruments industry, placing it in the top 57.2%.
Is Precision Optics' PB Ratio too high?
Precision Optics' current PB Ratio of 2.47 is 52% below median its 10-year median of 5.10. Over the past 10 years, this metric has ranged from a low of 2.26 to a high of 28.92. The Medical Devices & Instruments industry median PB Ratio is 2.05. Precision Optics' value of 2.47 is 20.5% above this industry median. Based on the distribution chart, Precision Optics ranks #450 out of 787 companies in the Medical Devices & Instruments industry, which is below the industry midpoint. Overall, Precision Optics has a GF Score™ of 73/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Precision Optics' PB Ratio compare to DXR and NEPH?
According to the Medical Devices & Instruments industry distribution chart, Precision Optics ranks #450 out of 787 companies for PB Ratio. This places Precision Optics in the lower half of its industry. The industry median PB Ratio is 2.05. Precision Optics' value of 2.47 is 20.5% above this benchmark. Historically, Precision Optics' own PB Ratio has ranged from 2.26 to 28.92 over the past decade. While the company's 10-year median is 5.10 vs. the industry median of 2.05, Precision Optics has consistently been above 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 2.05, based on 787 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. Precision Optics's current PB Ratio of 2.47 is 20.5% above 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 Precision Optics and its competitors. For the Medical Devices & Instruments industry, the median PB Ratio is 2.05 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Precision Optics's current PB Ratio is 2.47, which is 52% below median its own 10-year median of 5.10. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Precision Optics stock overvalued right now?
Based on GuruFocus' analysis, Precision Optics (POCI) is currently considered Modestly Undervalued. The stock's GF Value™ is $6.34, compared to a current price of $4.55 — trading 28.2% below its estimated fair value. The current PB Ratio is 2.47, which is 52% below median its 10-year median of 5.10 and 20.5% above the Medical Devices & Instruments industry median of 2.05. Precision Optics' overall GF Score™ is 73/100 with 5 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 Precision Optics (POCI), the current PB Ratio is 2.47 as of Jul. 16, 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 Precision Optics (POCI) Overvalued in 2026?
Based on GuruFocus' analysis, Precision Optics stock appears to be undervalued.
The current stock price of $4.55 is trading 28.2% below its estimated GF Value™ of $6.34.
GuruFocus considers Precision Optics to be Modestly Undervalued.
Key valuation signals for POCI:
PB Ratio: 2.47 (52% below median its 10-year median of 5.10)
GF Value™: $6.34 vs. price of $4.55 (28.2% below fair value)
Industry Position: 20.5% above the Medical Devices & Instruments median (#450 of 787)
No single metric tells the full story. See the POCI stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Precision Optics Corp Inc is engaged in designing, developing, and manufacturing advanced optical instruments. It manufactures medical products such as endoscopes and endocouplers which incorporate various optical technologies for use in a variety of minimally invasive surgical and diagnostic procedures. The company also produces endoscopes for various applications as well as designs and manufactures custom optical medical devices to satisfy customers' specific requirements. In addition, the company manufactures and sells components and assemblies specially designed for industrial and military use. The company earns the majority of its revenue from the United States.
73GF Score
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