SDI GroupSDIIF 93 Gross Margin % is 66.34% as of Oct. 2025, which is 3% above its 10-year median of 64.59. GuruFocus rates SDIIF with a GF Score™ of 93/100 and a GF Value™ of $1.31 (Modestly Undervalued). The stock has 4 warning signs investors should review. Among 2,450 Hardware companies, SDI Group ranks better than 95.8% on this metric.
Gross Margin % is calculated as gross profit divided by its revenue. SDI Group's Gross Profit for the
six
months ended in Oct. 2025 was $30.14 Mil. SDI Group's Revenue for the
six
months ended in Oct. 2025 was $45.43 Mil. Therefore, SDI Group's Gross Margin % for the quarter that ended in Oct. 2025 was 66.34%.
The historical rank and industry rank for SDI Group's Gross Margin % or its related term are showing as below:
SDIIF'
s Gross Margin % Range Over the Past 10 Years
Min: 61.08 Med: 64.59 Max: 67.76
Current: 65.36
During the past 13 years, the highestGross Margin % of SDI Group was 67.76%. The lowest was 61.08%. And the median was 64.59%.
SDIIF's Gross Margin % is ranked better than 95.8% of 2450
companies
in the Hardware industry
Industry Median: 24.53
vs SDIIF: 65.36
SDI Group had a gross margin of 66.34% for the quarter that ended in Oct. 2025 => Durable competitive advantage
The 5-Year average Growth Rate of Gross Margin for SDI Group was -0.90% per year.
SDI Group (OTCPK:SDIIF) Gross Margin % Explanation
Warren Buffett believes that firms with excellent long term economics tend to have consistently higher margins.
Durable competitive advantage creates a high Gross Margin % because of the freedom to price in excess of cost. Companies can be categorized by their Gross Margin %
1. Greater than 40% = Durable competitive advantage
2. Less than 40% = Competition eroding margins
3. Less than 20% = no sustainable competitive advantage
Consistency of Gross Margin is key
SDI Group had a gross margin of 66.34% for the quarter that ended in Oct. 2025 => Durable competitive advantage
Be Aware
If a company loses its competitive advantages, usually its gross margin declines well before its sales declines. Watching Gross Margin % and Operating Margin % closely helps avoid value trap situations.
SDI Group Gross Margin % Related Terms
SDI Group Gross Margin % Historical Data
* Premium members only.
The historical data trend for SDI Group's Gross Margin % 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: Gross Margin % Comparison
For the Scientific & Technical Instruments subindustry, SDI Group's Gross Margin %, along with its competitors' market caps and Gross Margin % 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 Gross Margin % vs Hardware Industry
For the Hardware industry and Technology sector, SDI Group's Gross Margin % distribution charts can be found below:
* The bar in red indicates where SDI Group's Gross Margin % 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.
A positive Gross Profit is only the first step for a company to make a net profit. The gross profit needs to be big enough to also cover related labor, equipment, rental, marketing/advertising, research and development and a lot of other costs in selling the products.
SDI Group (SDIIF) has a Gross Margin % of 66.34% as of Oct. 2025. Gross margin is the ratio of total gross profit to net sales. View historical data on SDI Group and its competitors. This is near median its historical median of 64.59. Over the past decade, SDI Group's Gross Margin % has ranged from 61.08 to 67.76. According to the industry distribution chart, SDI Group ranks #103 out of 2450 companies in the Hardware industry, placing it in the top 4.2%.
Is SDI Group's Gross Margin % too high?
SDI Group's current Gross Margin % of 66.34% is near median its 10-year median of 64.59. Over the past 10 years, this metric has ranged from a low of 61.08 to a high of 67.76. The Hardware industry median Gross Margin % is 24.53. SDI Group's value of 66.34% is 170.4% above this industry median. Based on the distribution chart, SDI Group ranks #103 out of 2450 companies in the Hardware industry, which is in the top quartile — a strong position relative to peers. 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 Gross Margin % compare to COHR and KEYS?
According to the Hardware industry distribution chart, SDI Group ranks #103 out of 2450 companies for Gross Margin %. This places SDI Group in the top 4% of its industry — outperforming the majority of peers. The industry median Gross Margin % is 24.53. SDI Group's value of 66.34% is 170.4% above this benchmark. Historically, SDI Group's own Gross Margin % has ranged from 61.08 to 67.76 over the past decade. While the company's 10-year median is 64.59 vs. the industry median of 24.53, 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 Gross Margin % for a Hardware company?
The median Gross Margin % among Hardware companies is 24.53, based on 2,450 companies in the industry. Companies in the top quartile (top 25%) have a Gross Margin % significantly above this median, while those in the bottom quartile fall well below. However, Gross Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. SDI Group's current Gross Margin % of 66.34% is 170.4% 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 Gross Margin % mean?
A high Gross Margin % can signal that a stock is expensive relative to its fundamentals. Gross margin is the ratio of total gross profit to net sales. View historical data on SDI Group and its competitors. For the Hardware industry, the median Gross Margin % is 24.53 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. SDI Group's current Gross Margin % is 66.34%, which is near median its own 10-year median of 64.59. 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 $1.31, compared to a current price of $1.05 — trading 19.8% below its estimated fair value. The current Gross Margin % is 66.34%, which is near median its 10-year median of 64.59 and 170.4% above the Hardware industry median of 24.53. SDI Group's overall GF Score™ is 93/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Gross Margin % calculated?
Gross Margin % is calculated from a company's financial statements. For SDI Group (SDIIF), the current Gross Margin % is 66.34% 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 19.8% below its estimated GF Value™ of $1.31.
GuruFocus considers SDI Group to be Modestly Undervalued.
Key valuation signals for SDIIF:
Gross Margin %: 66.34% (near median its 10-year median of 64.59)
GF Value™: $1.31 vs. price of $1.05 (19.8% below fair value)
Industry Position: 170.4% above the Hardware median (#103 of 2450)
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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