SDIIF (SDI Group) PE Ratio: 18.10 (As of Jun. 25, 2026) — 21% Below Median


SDIIF SDI Group PLC SDIIF
93 GF Score
Price $1.05
GF Value $1.31
Valuation Modestly Undervalued
! 4 Warning Signs
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What is SDI Group PE Ratio?

SDI Group SDIIF 93 PE Ratio is 18.10 as of Jun. 25, 2026, which is 21% below its 10-year median of 22.85. 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.

The PE Ratio, or Price-to-Earnings ratio, or P/E Ratio, is a financial ratio used to compare a company's market price to its Earnings per Share (Diluted). As of today (2026-06-25), SDI Group's share price is $1.05. SDI Group's Earnings per Share (Diluted) for the trailing twelve months (TTM) ended in Oct. 2025 was $0.06. Therefore, SDI Group's PE Ratio for today is 18.10.

During the past 13 years, SDI Group's highest PE Ratio was 71.92. The lowest was 7.71. And the median was 22.85.

SDI Group's EPS (Diluted) for the six months ended in Oct. 2025 was $0.02. Its EPS (Diluted) for the trailing twelve months (TTM) ended in Oct. 2025 was $0.06.

As of today (2026-06-25), SDI Group's share price is $1.05. SDI Group's EPS without NRI for the trailing twelve months (TTM) ended in Oct. 2025 was $0.09. Therefore, SDI Group's PE Ratio without NRI ratio for today is 12.07.

During the past 13 years, SDI Group's highest PE Ratio without NRI was 55.00. The lowest was 6.00. And the median was 17.29.

SDI Group's EPS without NRI for the six months ended in Oct. 2025 was $0.04. Its EPS without NRI for the trailing twelve months (TTM) ended in Oct. 2025 was $0.09.

During the past 12 months, SDI Group's average EPS without NRI Growth Rate was 20.00% per year. During the past 3 years, the average EPS without NRI Growth Rate was -10.70% per year. During the past 5 years, the average EPS without NRI Growth Rate was 8.80% per year. During the past 10 years, the average EPS without NRI Growth Rate was 23.40% per year.

During the past 13 years, SDI Group's highest 3-Year average EPS without NRI Growth Rate was 122.40% per year. The lowest was -55.00% per year. And the median was 22.10% per year.

SDI Group's EPS (Basic) for the six months ended in Oct. 2025 was $0.02. Its EPS (Basic) for the trailing twelve months (TTM) ended in Oct. 2025 was $0.06.

Back to Basics: PE Ratio


SDI Group  (OTCPK:SDIIF) PE Ratio Explanation

The PE Ratio can be viewed as the number of years it takes for the company to earn back the price you pay for the stock. For example, if a company earns $2 a share per year, and the stock is traded at $30, the PE Ratio is 15. Therefore it takes 15 years for the company to earn back the $30 you paid for its stock, assuming the earnings stays constant over the next 15 years.

In real business, earnings never stay constant. If a company can grow its earnings, it takes fewer years for the company to earn back the price you pay for the stock. If a company's earnings decline it takes more years. As a shareholder, you want the company to earn back the price you pay as soon as possible. Therefore, lower P/E stocks are more attractive than higher P/E stocks so long as the PE Ratio is positive. Also for stocks with the same PE Ratio, the one with faster growth business is more attractive.

If a company loses money, the PE Ratio becomes meaningless.

To compare stocks with different growth rates, Peter Lynch invented a ratio called PEG Ratio. PEG Ratio is defined as the PE Ratio divided by the growth ratio. He thinks a company with a PE Ratio equal to its growth rate is fairly valued. Still he said he would rather buy a company growing 20% a year with a PE Ratio of 20, instead of a company growing 10% a year with a PE Ratio of 10.

Because the PE Ratio measures how long it takes to earn back the price you pay, the PE Ratio can be applied to the stocks across different industries. That is why it is the one of the most important and widely used indicators for the valuation of stocks.

Similar to the PE Ratio without NRI or PS Ratio or Price-to-Operating-Cash-Flow or Price-to-Free-Cash-Flow , the PE Ratio measures the valuation based on the earning power of the company. This is where it is different from the PB Ratio , which measures the valuation based on the company's balance sheet.


Be Aware

Investors need to be aware that the PE Ratio can be misleading a lot of times, especially when the underlying business is cyclical and unpredictable. As Peter Lynch pointed out, cyclical businesses have higher profit margins at the peaks of the business cycles. Their earnings are high and PE Ratios are artificially low. It is usually a bad idea to buy a cyclical business when the PE Ratio is low. A better ratio to identify the time to buy a cyclical businesses is the PS Ratio.

PE Ratio can also be affected by non-recurring-items such as the sale of part of businesses. This may increase for the current year or quarter dramatically. But it cannot be repeated over and over. Therefore PE Ratio without NRI is a more accurate indication of valuation than PE Ratio.


SDI Group PE Ratio Related Terms


SDI Group PE Ratio Historical Data

* Premium members only.

The historical data trend for SDI Group's PE 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.

SDI Group PE Ratio Chart

SDI Group Annual Data
Trend Apr16 Apr17 Apr18 Apr19 Apr20 Apr21 Apr22 Apr23 Apr24 Apr25
PE Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 38.91 20.69 47.57 13.63 14.21

SDI Group Semi-Annual Data
Apr16 Oct16 Apr17 Oct17 Apr18 Oct18 Apr19 Oct19 Apr20 Oct20 Apr21 Oct21 Apr22 Oct22 Apr23 Oct23 Apr24 Oct24 Apr25 Oct25
PE Ratio 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 At Loss 13.63 At Loss 14.21 At Loss

SDIIF vs COHR, KEYS, GRMN: PE Ratio Comparison

For the Scientific & Technical Instruments subindustry, SDI Group's PE Ratio, along with its competitors' market caps and PE 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 PE Ratio vs Hardware Industry

For the Hardware industry and Technology sector, SDI Group's PE Ratio distribution charts can be found below:

* The bar in red indicates where SDI Group's PE Ratio falls into.


SDIIF
93GF Score
SDI Group PLC SDIIF
PE Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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SDI Group PE Ratio Calculation

The PE Ratio, or Price-to-Earnings ratio, or P/E Ratio, is a financial ratio used to compare a company's market price to its Earnings per Share (Diluted). It is the most widely used ratio in the valuation of stocks.

SDI Group's PE Ratio for today is calculated as

PE Ratio=Share Price/Earnings per Share (Diluted) (TTM)
=1.05/0.058
=18.1

SDI Group's Share Price of today is $1.05.
For company reported semi-annually, SDI Group's Earnings per Share (Diluted) for the trailing twelve months (TTM) ended in Oct. 2025 adds up the semi-annually data reported by the company within the most recent 12 months, which was $0.06.


* 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:


There are at least three kinds of PE Ratios used by different investors. They are Trailing Twelve Month PE Ratio, Forward PE Ratio, or PE Ratio without NRI. A new PE Ratio based on inflation-adjusted normalized PE Ratio is called Shiller PE Ratio, after Yale professor Robert Shiller.

In the calculation of PE Ratio, the earnings per share used are the earnings per share over the past 12 months. For Forward PE Ratio, the earnings are the expected earnings for the next twelve months. In the case of PE Ratio without NRI, the reported earnings less the non-recurring items are used.

For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. Since it looks at the average over the last 10 years, Shiller PE Ratio is also called PE10.

Frequently Asked Questions Learn more about PE Ratio →
What does a PE Ratio of 18.10 mean?
SDI Group (SDIIF) has a PE Ratio of 18.10 as of Jun. 25, 2026. P/E ratio is the ratio of share price to a company's earnings per share. View historical data on SDI Group and its competitors. This is 21% below median its historical median of 22.85. Over the past decade, SDI Group's PE Ratio has ranged from 7.71 to 71.92.
Is SDI Group's PE Ratio too high?
SDI Group's current PE Ratio of 18.10 is 21% below median its 10-year median of 22.85. Over the past 10 years, this metric has ranged from a low of 7.71 to a high of 71.92. 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 PE Ratio compare to COHR and KEYS?
SDI Group's PE Ratio of 18.10 can be compared against companies in the Hardware industry. Historically, SDI Group's own PE Ratio has ranged from 7.71 to 71.92 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good PE Ratio for a Hardware company?
A good PE Ratio depends on the Hardware industry context. However, PE Ratio 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 PE Ratio mean?
A high PE Ratio can signal that a stock is expensive relative to its fundamentals. P/E ratio is the ratio of share price to a company's earnings per share. View historical data on SDI Group and its competitors. SDI Group's current PE Ratio is 18.10, which is 21% below median its own 10-year median of 22.85. 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 PE Ratio is 18.10, which is 21% below median its 10-year median of 22.85. 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 PE Ratio calculated?
PE Ratio is calculated from a company's financial statements. For SDI Group (SDIIF), the current PE Ratio is 18.10 as of Jun. 25, 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 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:

  • PE Ratio: 18.10 (21% below median its 10-year median of 22.85)
  • GF Value™: $1.31 vs. price of $1.05 (19.8% below fair value)
  • GF Score™: 93/100 with 4 warning signs

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 Business Description

Other Exchanges SDI:UKSD0:Germany
Address Nuffield Road, Beacon House, Cambridge, GBR, CB4 1TF
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

Get the complete analysis for SDIIF

PE Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$1.05
Price
$1.31
GF Value