OptiBiotix Health (STU:OB3) Book Value per Share: €0.07 (As of Dec. 2025)

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What is OptiBiotix Health Book Value per Share?

OptiBiotix Health STU:OB3 Book Value per Share is €0.07 as of Dec. 2025. The stock has 4 warning signs investors should review.

OptiBiotix Health's book value per share for the quarter that ended in Dec. 2025 was €0.07.

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. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the book value growth rate using book value per share data.

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.

OptiBiotix Health's current price is €0.0625. Its book value per share for the quarter that ended in Dec. 2025 was €0.07. Hence, today's PB Ratio of OptiBiotix Health is 0.89.

During the past 13 years, the highest P/B Ratio of OptiBiotix Health was 13.73. The lowest was 0.60. And the median was 3.58.


OptiBiotix Health  (STU:OB3) Book Value per Share Explanation

Usually a company's book value and Tangible Book per Share may not reflect its true value. The assets may be carried on the balance sheets at the original cost minus depreciation. This may underestimate the true economic values of the assets. It also may over-estimate their true economic value because the assets can become obsolete.

For financial companies such as banks and insurance companies, their assets may be reported in current market value of the assets owned. Book values of financial companies are more accurate indicator of the economic value of the company.


OptiBiotix Health Book Value per Share Related Terms


OptiBiotix Health Book Value per Share Historical Data

* Premium members only.

The historical data trend for OptiBiotix Health's Book Value per Share 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.

OptiBiotix Health Book Value per Share Chart

OptiBiotix Health Annual Data
Trend Nov15 Nov16 Nov17 Nov18 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Book Value per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.24 0.14 0.11 0.10 0.07

OptiBiotix Health Semi-Annual Data
Nov15 May16 Nov16 May17 Nov17 May18 Nov18 May19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
Book Value per Share Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 0.11 0.09 0.10 0.10 0.07

STU:OB3 vs VRTX, REGN, ALNY: Book Value per Share Comparison

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.



OptiBiotix Health Book Value per Share Calculation

OptiBiotix Health's Book Value Per Share for the fiscal year that ended in Dec. 2025 is calculated as:

Book Value Per Share=(Total Stockholders Equity-Preferred Stock)/Shares Outstanding (EOP)
=(7.18-0.00)/103.30
=0.07

OptiBiotix Health's Book Value Per Share for the quarter that ended in Dec. 2025 is calculated as:

Book Value Per Share=(Total Stockholders Equity-Preferred Stock)/Shares Outstanding (EOP)
=(7.18-0.00)/103.30
=0.07

* 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.

Theoretically it is what the shareholders will receive if the company is liquidated. Total Stockholders Equity is a balance sheet item and equal to Total Assets less Total Liabilities of the company.

Book value may include intangible items which may come from the company's past acquisitions. Book value less intangibles is called Tangible Book.

Frequently Asked Questions Learn more about Book Value per Share →
What does a Book Value per Share of €0.07 mean?
OptiBiotix Health (STU:OB3) has a Book Value per Share of €0.07 as of Dec. 2025. Book value per share gives the per-share value of a company's stockholder equity. View historical data on OptiBiotix Health and its competitors.
Is OptiBiotix Health's Book Value per Share too high?
OptiBiotix Health's current Book Value per Share is €0.07.
How does OptiBiotix Health's Book Value per Share compare to VRTX and REGN?
OptiBiotix Health's Book Value per Share of €0.07 can be compared against companies in the Biotechnology industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Book Value per Share for a Biotechnology company?
A good Book Value per Share depends on the Biotechnology industry context. However, Book Value per Share should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Book Value per Share mean?
A high Book Value per Share can signal that a stock is expensive relative to its fundamentals. Book value per share gives the per-share value of a company's stockholder equity. View historical data on OptiBiotix Health and its competitors. OptiBiotix Health's current Book Value per Share is €0.07. 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 Book Value per Share of €0.07. The stock's GF Value™ is €0.34, compared to a current price of €0.06 — trading 81.6% below its estimated fair value. The current Book Value per Share is €0.07. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Book Value per Share calculated?
Book Value per Share is calculated from a company's financial statements. For OptiBiotix Health (STU:OB3), the current Book Value per Share is €0.07 as of Dec. 2025. 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 Business Description

Other Exchanges OPTI:UK
Address Innovation Centre, Innovation Way, Heslington, York, GBR, YO10 5DG
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.