SDIIF (SDI Group) Intrinsic Value: DCF (FCF Based): $1.59 (As of Aug. 09, 2026) — 145% Above Median

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

SDIIF SDI Group PLC SDIIF
92 GF Score
Price $1.29
GF Value $1.26
Valuation Fairly Valued
! 6 Warning Signs
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What is SDI Group Intrinsic Value: DCF (FCF Based)?

SDI Group SDIIF 92 Intrinsic Value: DCF (FCF Based) is $1.59 as of Aug. 09, 2026, which is 145% above its 10-year median of 0.65. GuruFocus rates SDIIF with a GF Score™ of 92/100 and a GF Value™ of $1.26 (Fairly Valued). The stock has 6 warning signs investors should review. Among 218 Hardware companies, SDI Group ranks better than 73.85% on this metric.

As of today (2026-08-09), SDI Group's intrinsic value calculated from the Discounted Cash Flow model is $1.59.

Note: Discounted Cash Flow model is only suitable for predictable companies (Business Predictability Rank higher than 1-Star). If the company's predictability rank is 1-Star or Not Rated, result may not be accurate due to the low predictability of business and the data will not be stored into our database.

SDI Group's Predictability Rank is 3-Stars.

Margin of Safety (FCF Based) using Discounted Cash Flow model for SDI Group is 18.87%.

The industry rank for SDI Group's Intrinsic Value: DCF (FCF Based) or its related term are showing as below:

SDIIF's Price-to-DCF (FCF Based) is ranked better than
73.85% of 218 companies
in the Hardware industry
Industry Median: 1.48 vs SDIIF: 0.81

SDI Group  (OTCPK:SDIIF) Intrinsic Value: DCF (FCF Based) Explanation

Unlike valuation methods such as Net Current Asset Value, Tangible Book per Share, Graham Number, Median PS Value etc, discounted Cash Flow model evaluates the companies based on their future earnings power instead of their assets.


Be Aware

What you need to know about the DCF model:

1. The DCF model evaluates a company based on its future earnings power
2. Growth is taken into account; therefore a faster growth company is worth more if everything else is the same.
3. Since we are projecting future growth, it is assumed that the company will grow at the same rate as it did during the past 10 years. Therefore this model works better for the companies that have relatively consistent performance.
4. The DCF model works poorly for inconsistent performers such as cyclicals.
5. What discount rate should you use? Your expected return from the investment is a good discount rate assumption.
6. A larger margin of safety should be required for companies with less predictable businesses.

You can screen for stocks that trade below their Intrinsic Value: DCF (FCF Based) and Intrinsic Value: DCF (Earnings Based) with the GuruFocus All-in-One Screener. Companies with a high Predictability Rank that trade at a discount to their Intrinsic Value: DCF (FCF Based) and Intrinsic Value: DCF (Earnings Based) can be found in the screen of Undervalued Predictable Companies.


SDI Group Intrinsic Value: DCF (FCF Based) Related Terms


SDI Group Intrinsic Value: DCF (FCF Based) Historical Data

* Premium members only.

The historical data trend for SDI Group's Intrinsic Value: DCF (FCF Based) 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 Intrinsic Value: DCF (FCF Based) Chart

SDI Group Annual Data
Trend Apr17 Apr18 Apr19 Apr20 Apr21 Apr22 Apr23 Apr24 Apr25 Apr26
Intrinsic Value: DCF (FCF Based)
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 0.99 1.79

SDI Group Semi-Annual Data
Oct16 Apr17 Oct17 Apr18 Oct18 Apr19 Oct19 Apr20 Oct20 Apr21 Oct21 Apr22 Oct22 Apr23 Oct23 Apr24 Oct24 Apr25 Oct25 Apr26
Intrinsic Value: DCF (FCF Based) 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 0.00 0.00 0.99 0.00 1.79

SDIIF vs COHR, KEYS, GRMN: Intrinsic Value: DCF (FCF Based) Comparison

For the Scientific & Technical Instruments subindustry, SDI Group's Price-to-DCF (FCF Based), along with its competitors' market caps and Price-to-DCF (FCF Based) 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 Price-to-DCF (FCF Based) vs Hardware Industry

For the Hardware industry and Technology sector, SDI Group's Price-to-DCF (FCF Based) distribution charts can be found below:

* The bar in red indicates where SDI Group's Price-to-DCF (FCF Based) falls into.


SDIIF
92GF Score
SDI Group PLC SDIIF
Intrinsic Value: DCF (FCF Based) is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

SDI Group Intrinsic Value: DCF (FCF Based) Calculation

This is the intrinsic value calculated from the Discounted Cash Flow model with default parameters. In a discounted cash flow model, the future cash flow is estimated based on a cash flow growth rate and a discount rate. The cash flow of the future is discounted to its current value at the discount rate. All of the discounted future cash flow is added together to get the current intrinsic value of the company.

Usually a two-stage model is used when calculating a stock's intrinsic value using a discounted cash flow model. The first stage is called the growth stage; the second is called the terminal stage. In the growth stage the company grows at a faster rate. Because it cannot grow at that rate forever, a lower rate is used for the terminal stage.

GuruFocus DCF calculator is a two-stage model. The default values are defined as:

1. Discount Rate: d = 11%
A reasonable discount rate assumption should be at least the long term average return of the stock market, which can be estimated from risk free rate plus risk premium of stock market. GuruFocus uses 10-Year Treasury Constant Maturity Rate as the risk-free rate and rounded up to the nearest integer. It is updated daily. The current risk-free rate is 4.80%. Please go to Economic Indicators page for more information. Please note that we use the 10-Year Treasury Constant Maturity Rate of the country/region where the company is headquartered. If the data for that country/region is not available, then we will use the 10-Year Treasury Constant Maturity Rate of the United States as default. Then we added a risk premium of 6% to get the estimated discount rate. Some investors use their expected rate of return, which is also reasonable. A typical discount rate can be anywhere between 6% - 20%.

2. Growth Rate in the growth stage: g1 = 20%
The Growth Rate in the growth stage is initially set as the default 10-Year FCF Growth Rate (Per Share). In cases where the 10-year growth rate is unavailable, it defaults to using the 5-Year FCF Growth Rate (Per Share). If both the 10-year and 5-year growth rates are unavailable, the system defaults to the 3-Year FCF Growth Rate (Per Share).
However, it's important to note that there is a growth rate range. If the calculated growth rate exceeds 20%, it will be capped at 20%. Conversely, if the calculated growth rate falls below 5%, it will be adjusted to 5% to maintain a reasonable range.
=> SDI Group's average Free Cash Flow Growth Rate in the past 10 years was 21.10%, which is no less than 20%. GuruFocus defaults => Growth Rate: 20%

3. Years of Growth Stage: y1 = 10

4. Terminal Growth Rate: g2 = 4%

5. Years of Terminal Growth: y2 = 10

6. Free Cash Flow per Share: fcf = $0.051.
However, GuruFocus DCF calculator is actually a Discounted Earnings calculator, the EPS without NRI is used as the default. The reason we are doing this is we found that historically stock prices are more correlated with earnings than free cash flow.

All of the default settings can be changed and the results are calculated automatically.

SDI Group's Intrinsic Value: DCF (FCF Based) for today is calculated as

Intrinsic Value: DCF (FCF Based)=Free Cash Flow per Share*{[(1+g1)/(1+d)+(1+g1)^2/(1+d)^2+...+(1+g1)^10/(1+d)^10]
+(1+g1)^10/(1+d)^10*[(1+g2)/(1+d)+(1+g2)^2/(1+d)^2+...+(1+g2)^10/(1+d)^10]}

set x = (1+g1)/(1+d) = (1+0.2)/(1+0.11) = 1.0810810810811
and y = (1+g2)/(1+d) = (1+0.04)/(1+0.11) = 0.93693693693694

Intrinsic Value: DCF (FCF Based)=Free Cash Flow per Share*{[x+x^2+...+x^10]+x^10*[y+y^2+...+y^10]}
=Free Cash Flow per Share*[x*(1-x^10)/(1-x)+x^10*y*(1-y^10)/(1-y)]
=0.051*31.2501
=1.59

Margin of Safety (FCF Based)=(Intrinsic Value: DCF (FCF Based)-Current Price)/Intrinsic Value: DCF (FCF Based)
=(1.59-1.29)/1.59
=18.87 %

* 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.

What does a Intrinsic Value: DCF (FCF Based) of $1.59 mean?
SDI Group (SDIIF) has a Intrinsic Value: DCF (FCF Based) of $1.59 as of Aug. 09, 2026. Intrinsic Value: DCF (FCF Based) is the stock value based on a two-stage discounted free cash flow model. View historical data on SDI Group and its competitors. This is 145% above median its historical median of 0.65. Over the past decade, SDI Group's Intrinsic Value: DCF (FCF Based) has ranged from 0.63 to 0.81. According to the industry distribution chart, SDI Group ranks #57 out of 218 companies in the Hardware industry, placing it in the top 26.1%.
Is SDI Group's Intrinsic Value: DCF (FCF Based) too high?
SDI Group's current Intrinsic Value: DCF (FCF Based) of $1.59 is 145% above median its 10-year median of 0.65. Over the past 10 years, this metric has ranged from a low of 0.63 to a high of 0.81. The Hardware industry median Intrinsic Value: DCF (FCF Based) is 1.48. SDI Group's value of $1.59 is 7.4% above this industry median. Based on the distribution chart, SDI Group ranks #57 out of 218 companies in the Hardware industry, which is above the industry midpoint. Overall, SDI Group has a GF Score™ of 92/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does SDI Group's Intrinsic Value: DCF (FCF Based) compare to COHR and KEYS?
According to the Hardware industry distribution chart, SDI Group ranks #57 out of 218 companies for Intrinsic Value: DCF (FCF Based). This puts SDI Group in the upper half of its industry. The industry median Intrinsic Value: DCF (FCF Based) is 1.48. SDI Group's value of $1.59 is 7.4% above this benchmark. Historically, SDI Group's own Intrinsic Value: DCF (FCF Based) has ranged from 0.63 to 0.81 over the past decade. While the company's 10-year median is 0.65 vs. the industry median of 1.48, 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 Intrinsic Value: DCF (FCF Based) for a Hardware company?
The median Intrinsic Value: DCF (FCF Based) among Hardware companies is 1.48, based on 218 companies in the industry. Companies in the top quartile (top 25%) have a Intrinsic Value: DCF (FCF Based) significantly above this median, while those in the bottom quartile fall well below. However, Intrinsic Value: DCF (FCF Based) should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. SDI Group's current Intrinsic Value: DCF (FCF Based) of $1.59 is 7.4% 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 Intrinsic Value: DCF (FCF Based) mean?
A high Intrinsic Value: DCF (FCF Based) can signal that a stock is expensive relative to its fundamentals. Intrinsic Value: DCF (FCF Based) is the stock value based on a two-stage discounted free cash flow model. View historical data on SDI Group and its competitors. For the Hardware industry, the median Intrinsic Value: DCF (FCF Based) is 1.48 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. SDI Group's current Intrinsic Value: DCF (FCF Based) is $1.59, which is 145% above median its own 10-year median of 0.65. 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 Intrinsic Value: DCF (FCF Based) is $1.59, which is 145% above median its 10-year median of 0.65 and 7.4% above the Hardware industry median of 1.48. SDI Group's overall GF Score™ is 92/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Intrinsic Value: DCF (FCF Based) calculated?
Intrinsic Value: DCF (FCF Based) is calculated from a company's financial statements. For SDI Group (SDIIF), the current Intrinsic Value: DCF (FCF Based) is $1.59 as of Aug. 09, 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:

  • Intrinsic Value: DCF (FCF Based): $1.59 (145% above median its 10-year median of 0.65)
  • GF Value™: $1.26 vs. price of $1.29 (2.4% above fair value)
  • GF Score™: 92/100 with 6 warning signs
  • Industry Position: 7.4% above the Hardware median (#57 of 218)

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.
92GF Score

Get the complete analysis for SDIIF

Intrinsic Value: DCF (FCF Based) is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$1.29
Price
$1.26
GF Value