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SDI GroupSDIIF 90 3-Year Book Growth Rate is 8.80% as of Apr. 2026, which is at its 10-year median of 8.80. GuruFocus rates SDIIF with a GF Score™ of 90/100 and a GF Value™ of $1.26 (Fairly Valued). The stock has 5 warning signs investors should review. Among 2,386 Hardware companies, SDI Group ranks better than 69.61% on this metric.
During the past 12 months, SDI Group's average Book Value per Share Growth Rate was 7.80% per year.
During the past 3 years, the average Book Value per Share Growth Rate was 8.80% per year.
During the past 5 years, the average Book Value per Share Growth Rate was 12.70% per year.
During the past 10 years, the average Book Value per Share Growth Rate was 18.80% 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 average Book Value per Share growth rate.
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 8.80% per year.
SDI Group (OTCPK:SDIIF) 3-Year Book Growth Rate Explanation
Book Value per Share is the ratio of equity available to common shareholders divided by the shares outstanding. Book value per share effectively indicates a firm's net asset value on a per-share basis. It can be used by investors to gauge whether a stock price is undervalued by comparing it to the firm's market value per share. Theoretically, it is what the shareholders will receive if the company is liquidated.
SDI Group 3-Year Book Growth Rate Related Terms
SDIIF vs COHR, KEYS, GRMN: 3-Year Book Growth Rate Comparison
For the Scientific & Technical Instruments subindustry, SDI Group's 3-Year Book Growth Rate, along with its competitors' market caps and 3-Year Book Growth Rate 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 3-Year Book Growth Rate vs Hardware Industry
For the Hardware industry and Technology sector, SDI Group's 3-Year Book Growth Rate distribution charts can be found below:
* The bar in red indicates where SDI Group's 3-Year Book Growth Rate falls into.
This is the 3-year average growth rate of Book Value per Share. The growth rate is calculated using exponential compounding based on the latest four year annual data.
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 average Book Value per Share growth rate.
What does a 3-Year Book Growth Rate of 8.80% mean?
SDI Group (SDIIF) has a 3-Year Book Growth Rate of 8.80% as of Apr. 2026. 3-Year Book Growth Rate is the 3-year average growth rate of Book Value per Share. View historical data for SDI Group and its competitors. This is near median its historical median of 8.80. According to the industry distribution chart, SDI Group ranks #725 out of 2386 companies in the Hardware industry, placing it in the top 30.4%.
Is SDI Group's 3-Year Book Growth Rate too high?
SDI Group's current 3-Year Book Growth Rate of 8.80% is near median its 10-year median of 8.80. The Hardware industry median 3-Year Book Growth Rate is 3.60. SDI Group's value of 8.80% is 144.4% above this industry median. Based on the distribution chart, SDI Group ranks #725 out of 2386 companies in the Hardware industry, which is above the industry midpoint. Overall, SDI Group has a GF Score™ of 90/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does SDI Group's 3-Year Book Growth Rate compare to COHR and KEYS?
According to the Hardware industry distribution chart, SDI Group ranks #725 out of 2386 companies for 3-Year Book Growth Rate. This puts SDI Group in the upper half of its industry. The industry median 3-Year Book Growth Rate is 3.60. SDI Group's value of 8.80% is 144.4% above this benchmark. While the company's 10-year median is 8.80 vs. the industry median of 3.60, SDI Group 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 3-Year Book Growth Rate for a Hardware company?
The median 3-Year Book Growth Rate among Hardware companies is 3.60, based on 2,386 companies in the industry. Companies in the top quartile (top 25%) have a 3-Year Book Growth Rate significantly above this median, while those in the bottom quartile fall well below. However, 3-Year Book Growth Rate should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. SDI Group's current 3-Year Book Growth Rate of 8.80% is 144.4% 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 3-Year Book Growth Rate mean?
A high 3-Year Book Growth Rate can signal that a stock is expensive relative to its fundamentals. 3-Year Book Growth Rate is the 3-year average growth rate of Book Value per Share. View historical data for SDI Group and its competitors. For the Hardware industry, the median 3-Year Book Growth Rate is 3.60 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. SDI Group's current 3-Year Book Growth Rate is 8.80%, which is near median its own 10-year median of 8.80. 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 Fairly Valued. The stock's GF Value™ is $1.26, compared to a current price of $1.29 — trading 2.4% above its estimated fair value. The current 3-Year Book Growth Rate is 8.80%, which is near median its 10-year median of 8.80 and 144.4% above the Hardware industry median of 3.60. SDI Group's overall GF Score™ is 90/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 3-Year Book Growth Rate calculated?
3-Year Book Growth Rate is calculated from a company's financial statements. For SDI Group (SDIIF), the current 3-Year Book Growth Rate is 8.80% as of Apr. 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 SDI Group (SDIIF) Overvalued in 2026?
Based on GuruFocus' analysis, SDI Group stock appears to be overvalued.
The current stock price of $1.29 is trading 2.4% above its estimated GF Value™ of $1.26.
GuruFocus considers SDI Group to be Fairly Valued.
Key valuation signals for SDIIF:
3-Year Book Growth Rate: 8.80% (near median its 10-year median of 8.80)
GF Value™: $1.26 vs. price of $1.29 (2.4% above fair value)
Industry Position: 144.4% above the Hardware median (#725 of 2386)
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.
90GF Score
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