Tan Delta Systems (LSE:TAND) ROE % Adjusted to Book Value: -5.76% (As of Dec. 2025)


LSE:TAND Tan Delta Systems PLC LSE:TAND
25 GF Score
Price £0.28
GF Value £0.18
Valuation Significantly Overvalued
! 4 Warning Signs
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What is Tan Delta Systems ROE % Adjusted to Book Value?

Tan Delta Systems LSE:TAND 25 ROE % Adjusted to Book Value is -5.76% as of Dec. 2025. GuruFocus rates LSE:TAND with a GF Score™ of 25/100 and a GF Value™ of £0.18 (Significantly Overvalued). The stock has 4 warning signs investors should review.

Tan Delta Systems's ROE % for the quarter that ended in Dec. 2025 was -60.37%. Tan Delta Systems's PB Ratio for the quarter that ended in Dec. 2025 was 10.48. Tan Delta Systems's ROE % Adjusted to Book Value for the quarter that ended in Dec. 2025 was -5.76%.


Tan Delta Systems ROE % Adjusted to Book Value Related Terms


Tan Delta Systems ROE % Adjusted to Book Value Historical Data

* Premium members only.

The historical data trend for Tan Delta Systems's ROE % Adjusted to Book Value 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.

Tan Delta Systems ROE % Adjusted to Book Value Chart

Tan Delta Systems Annual Data
Trend Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
ROE % Adjusted to Book Value
Get a 7-Day Free Trial 0.00 0.00 -11.21 -7.15 -4.98

Tan Delta Systems Semi-Annual Data
Dec20 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
ROE % Adjusted to Book Value Get a 7-Day Free Trial Premium Member Only Premium Member Only -16.94 -10.94 -8.31 -9.02 -5.76

LSE:TAND vs SLB, BKR, HAL: ROE % Adjusted to Book Value Comparison

For the Oil & Gas Equipment & Services subindustry, Tan Delta Systems's ROE % Adjusted to Book Value, along with its competitors' market caps and ROE % Adjusted to Book Value 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.


Tan Delta Systems ROE % Adjusted to Book Value vs Oil & Gas Industry

For the Oil & Gas industry and Energy sector, Tan Delta Systems's ROE % Adjusted to Book Value distribution charts can be found below:

* The bar in red indicates where Tan Delta Systems's ROE % Adjusted to Book Value falls into.


LSE:TAND
25GF Score
Tan Delta Systems PLC LSE:TAND
ROE % Adjusted to Book Value is just one metric. See GF Score™, valuation, warning signs, and more.
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Tan Delta Systems ROE % Adjusted to Book Value Calculation

Tan Delta Systems's ROE % Adjusted to Book Value for the fiscal year that ended in Dec. 2025 is calculated as

ROE % Adjusted to Book Value=ROE % / PB Ratio
=-52.23% / 10.48
=-4.98%

Tan Delta Systems's ROE % Adjusted to Book Value for the quarter that ended in Dec. 2025 is calculated as

ROE % Adjusted to Book Value=ROE % / PB Ratio
=-60.37% / 10.48
=-5.76%

* 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 ROE % Adjusted to Book Value of -5.76% mean?
Tan Delta Systems (LSE:TAND) has a ROE % Adjusted to Book Value of -5.76% as of Dec. 2025. Return on equity adjusted to book is the ratio of return on equity to price-book ratio. View historical data on Tan Delta Systems and its competitors.
Is Tan Delta Systems' ROE % Adjusted to Book Value too high?
Tan Delta Systems' current ROE % Adjusted to Book Value is -5.76%. Overall, Tan Delta Systems has a GF Score™ of 25/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Tan Delta Systems' ROE % Adjusted to Book Value compare to SLB and BKR?
Tan Delta Systems' ROE % Adjusted to Book Value of -5.76% can be compared against companies in the Oil & Gas industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good ROE % Adjusted to Book Value for an Oil & Gas company?
A good ROE % Adjusted to Book Value depends on the Oil & Gas industry context. However, ROE % Adjusted to Book Value 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 ROE % Adjusted to Book Value mean?
A high ROE % Adjusted to Book Value can signal that a stock is expensive relative to its fundamentals. Return on equity adjusted to book is the ratio of return on equity to price-book ratio. View historical data on Tan Delta Systems and its competitors. Tan Delta Systems's current ROE % Adjusted to Book Value is -5.76%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tan Delta Systems stock overvalued right now?
Based on GuruFocus' analysis, Tan Delta Systems (LSE:TAND) is currently considered Significantly Overvalued. The stock's GF Value™ is £0.18, compared to a current price of £0.28 — trading 55.6% above its estimated fair value. The current ROE % Adjusted to Book Value is -5.76%. Tan Delta Systems' overall GF Score™ is 25/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROE % Adjusted to Book Value calculated?
ROE % Adjusted to Book Value is calculated from a company's financial statements. For Tan Delta Systems (LSE:TAND), the current ROE % Adjusted to Book Value is -5.76% as of Dec. 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 Tan Delta Systems (LSE:TAND) Overvalued in 2026?

Based on GuruFocus' analysis, Tan Delta Systems stock appears to be overvalued. The current stock price of £0.28 is trading 55.6% above its estimated GF Value™ of £0.18. GuruFocus considers Tan Delta Systems to be Significantly Overvalued.

Key valuation signals for LSE:TAND:

  • ROE % Adjusted to Book Value: -5.76%
  • GF Value™: £0.18 vs. price of £0.28 (55.6% above fair value)
  • GF Score™: 25/100 with 4 warning signs

No single metric tells the full story. See the LSE:TAND stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Tan Delta Systems Business Description

Industry EnergyOil & Gas
Other Exchanges TB4:Germany
Address Church Lane, 1 Carrera Court, Dinnington, Sheffield, GBR, S25 2RG
Tan Delta Systems PLC develops real-time oil analysis and analytic technologies and products with capabilities that enable equipment operators to significantly reduce operating costs, improve efficiency, and reduce carbon footprint. It develops all its core technologies and products in-house, with manufacturing undertaken by its carefully selected manufacturing partners with whom its dedicated production QA department works. Its products include Sensors, Kits, Display solutions, Gateways & modems, and Accessories & services. Geographically, its solutions are in use across the UK, Europe, North and South America, Asia, and the Middle East.
25GF Score

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ROE % Adjusted to Book Value is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

£0.28
Price
£0.18
GF Value