OptiBiotix HealthSTU:OB3 +1.39% PB Ratio is 1.04 as of Jul. 06, 2026, which is 71% below its 10-year median of 3.62. The stock has 4 warning signs investors should review. Among 1,230 Biotechnology companies, OptiBiotix Health ranks better than 81.95% on this metric.
The historical rank and industry rank for OptiBiotix Health's PB Ratio or its related term are showing as below:
STU:OB3'
s PB Ratio Range Over the Past 10 Years
Min: 0.6 Med: 3.62 Max: 13.73
Current: 1.06
During the past 13 years, OptiBiotix Health's highest PB Ratio was 13.73. The lowest was 0.60. And the median was 3.62.
STU:OB3's PB Ratio is ranked better than 81.95% of 1230
companies
in the Biotechnology industry
Industry Median: 2.99
vs STU:OB3: 1.06
During the past 12 months, OptiBiotix Health's average Book Value Per Share Growth Rate was -29.10% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was -20.20% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was -17.60% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was 4.30% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of OptiBiotix Health was 32.30% per year. The lowest was -91.90% per year. And the median was -15.20% 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.
OptiBiotix Health PB Ratio Related Terms
OptiBiotix Health PB Ratio Historical Data
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The historical data trend for OptiBiotix Health'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 Biotechnology subindustry, OptiBiotix Health'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.
OptiBiotix Health PB Ratio vs Biotechnology Industry
For the Biotechnology industry and Healthcare sector, OptiBiotix Health's PB Ratio distribution charts can be found below:
* The bar in red indicates where OptiBiotix Health'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.
OptiBiotix Health (STU:OB3) has a PB Ratio of 1.04 as of Jul. 06, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on OptiBiotix Health and its competitors. This is 71% below median its historical median of 3.62. Over the past decade, OptiBiotix Health's PB Ratio has ranged from 0.60 to 13.73. According to the industry distribution chart, OptiBiotix Health ranks #222 out of 1230 companies in the Biotechnology industry, placing it in the top 18%.
Is OptiBiotix Health's PB Ratio too high?
OptiBiotix Health's current PB Ratio of 1.04 is 71% below median its 10-year median of 3.62. Over the past 10 years, this metric has ranged from a low of 0.60 to a high of 13.73. The Biotechnology industry median PB Ratio is 2.99. OptiBiotix Health's value of 1.04 is 65.2% below this industry median. Based on the distribution chart, OptiBiotix Health ranks #222 out of 1230 companies in the Biotechnology industry, which is in the top quartile — a strong position relative to peers.
How does OptiBiotix Health's PB Ratio compare to VRTX and REGN?
According to the Biotechnology industry distribution chart, OptiBiotix Health ranks #222 out of 1230 companies for PB Ratio. This places OptiBiotix Health in the top 18% of its industry — outperforming the majority of peers. The industry median PB Ratio is 2.99. OptiBiotix Health's value of 1.04 is 65.2% below this benchmark. Historically, OptiBiotix Health's own PB Ratio has ranged from 0.60 to 13.73 over the past decade. While the company's 10-year median is 3.62 vs. the industry median of 2.99, OptiBiotix Health 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 Biotechnology company?
The median PB Ratio among Biotechnology companies is 2.99, based on 1,230 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. OptiBiotix Health's current PB Ratio of 1.04 is 65.2% 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 OptiBiotix Health and its competitors. For the Biotechnology industry, the median PB Ratio is 2.99 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. OptiBiotix Health's current PB Ratio is 1.04, which is 71% below median its own 10-year median of 3.62. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is OptiBiotix Health stock overvalued right now?
OptiBiotix Health (STU:OB3) has a current PB Ratio of 1.04. The stock's GF Value™ is €0.34, compared to a current price of €0.07 — trading 78.5% below its estimated fair value. The current PB Ratio is 1.04, which is 71% below median its 10-year median of 3.62 and 65.2% below the Biotechnology industry median of 2.99. 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 OptiBiotix Health (STU:OB3), the current PB Ratio is 1.04 as of Jul. 06, 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.
OptiBiotix Health PLC principal activity is that of identifying and developing microbial strains, compounds, and formulations for use in food ingredients, supplements and active compounds that can impact on human physiology, deriving potential health benefits. It is a life sciences business focused on the development of products which reduce hunger and food cravings, enhance the gut microbiome, and provide a healthy substitute for sugar. Its product portfolio includes First-generation products- SlimBiome, WellBiome; and Second-generation solutions- SweetBiotix, Microbiome Modulators. The group has one class of business. It has presence in United Kingdom, United States, India China, and Rest of world. The company generates majority of revenue from United States.
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