SDI Group's book value per share for the quarter that ended in Oct. 2025 was $0.66.
During the past 12 months, SDI Group's average Book Value Per Share Growth Rate was 10.10% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was 10.70% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 17.70% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was 18.40% 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 SDI Group was 25.80% per year. The lowest was -2.60% per year. And the median was 9.20% per year.
SDI Group's current price is $1.05. Its book value per share for the quarter that ended in Oct. 2025 was $0.66. Hence, today's PB Ratio of SDI Group is 1.68.
During the past 13 years, the highest P/B Ratio of SDI Group was 9.08. The lowest was 0.88. And the median was 2.65.
SDI Group (OTCPK:SDIIF) 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.
SDI Group Book Value per Share Related Terms
SDI Group Book Value per Share Historical Data
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The historical data trend for SDI Group'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.
SDIIF vs COHR, KEYS, GRMN: Book Value per Share Comparison
For the Scientific & Technical Instruments subindustry, SDI Group'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.
SDI Group PB Ratio vs Hardware Industry
For the Hardware industry and Technology sector, SDI Group's PB Ratio distribution charts can be found below:
* The bar in red indicates where SDI Group's PB Ratio falls into.
* 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.
SDI Group (SDIIF) has a Book Value per Share of $0.66 as of Oct. 2025. Book value per share gives the per-share value of a company's stockholder equity. View historical data on SDI Group and its competitors.
Is SDI Group's Book Value per Share too high?
SDI Group's current Book Value per Share is $0.66. Overall, SDI Group has a GF Score™ of 93/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does SDI Group's Book Value per Share compare to COHR and KEYS?
SDI Group's Book Value per Share of $0.66 can be compared against companies in the Hardware 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 Hardware company?
A good Book Value per Share depends on the Hardware 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 SDI Group and its competitors. SDI Group's current Book Value per Share is $0.66. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is SDI Group stock overvalued right now?
Based on GuruFocus' analysis, SDI Group (SDIIF) is currently considered Modestly Undervalued. The stock's GF Value™ is $1.30, compared to a current price of $1.05 — trading 19.2% below its estimated fair value. The current Book Value per Share is $0.66. SDI Group's overall GF Score™ is 93/100 with 7 warning signs to review. 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 SDI Group (SDIIF), the current Book Value per Share is $0.66 as of Oct. 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.
Is SDI Group (SDIIF) Overvalued in 2026?
Based on GuruFocus' analysis, SDI Group stock appears to be undervalued.
The current stock price of $1.05 is trading 19.2% below its estimated GF Value™ of $1.30.
GuruFocus considers SDI Group to be Modestly Undervalued.
Key valuation signals for SDIIF:
Book Value per Share: $0.66
GF Value™: $1.30 vs. price of $1.05 (19.2% below fair value)
No single metric tells the full story. See the SDIIF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
SDI Group PLC designs and manufactures scientific and technology products for use by the life science, healthcare, astronomy, consumer manufacturing, and art conservation markets through Synoptics, the Artemis, the Opus instruments, and Astles Control systems brands. The Digital Imaging segment incorporates the Synoptics brands Syngene, Synbiosis, Synoptics Health and Fistreem, the Atik brands Atik Cameras, Opus, and Quantum Scientific Imaging, and the Graticules Optics business. The Sensors & Control segment combines Sentek, Astles Control Systems, Applied Thermal Control, Thermal Exchange, MPB Industries, and Chell Instruments businesses. It operates in the UK, Europe, America, Rest of Asia, and Rest of the world segments. It derives majority of its revenues from the United Kingdom.
93GF Score
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Book Value per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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