Invinity Energy Systems (STU:A10) ROE % Adjusted to Book Value: -31.30% (As of Dec. 2025)


STU:A10 Invinity Energy Systems PLC STU:A10
46 GF Score
Price €0.29
GF Value €0.10
Valuation Significantly Overvalued
! 6 Warning Signs
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What is Invinity Energy Systems ROE % Adjusted to Book Value?

Invinity Energy Systems STU:A10 +3.55% 46 ROE % Adjusted to Book Value is -31.30% as of Dec. 2025. GuruFocus rates STU:A10 with a GF Score™ of 46/100 and a GF Value™ of €0.10 (Significantly Overvalued). The stock has 6 warning signs investors should review.

Invinity Energy Systems's ROE % for the quarter that ended in Dec. 2025 was -45.70%. Invinity Energy Systems's PB Ratio for the quarter that ended in Dec. 2025 was 1.46. Invinity Energy Systems's ROE % Adjusted to Book Value for the quarter that ended in Dec. 2025 was -31.30%.


Invinity Energy Systems ROE % Adjusted to Book Value Related Terms


Invinity Energy Systems ROE % Adjusted to Book Value Historical Data

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The historical data trend for Invinity Energy 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.

Invinity Energy Systems ROE % Adjusted to Book Value Chart

Invinity Energy Systems Annual Data
Trend Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
ROE % Adjusted to Book Value
Get a 7-Day Free Trial -22.58 -31.62 -38.15 -49.40 -24.31

Invinity Energy Systems Semi-Annual Data
Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 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 Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only -28.51 -39.80 -35.19 -14.97 -31.30

STU:A10 vs VRT, BE: ROE % Adjusted to Book Value Comparison

For the Electrical Equipment & Parts subindustry, Invinity Energy 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.


Invinity Energy Systems ROE % Adjusted to Book Value vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, Invinity Energy Systems's ROE % Adjusted to Book Value distribution charts can be found below:

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


STU:A10
46GF Score
Invinity Energy Systems PLC STU:A10
ROE % Adjusted to Book Value is just one metric. See GF Score™, valuation, warning signs, and more.
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Invinity Energy Systems ROE % Adjusted to Book Value Calculation

Invinity Energy 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
=-35.49% / 1.46
=-24.31%

Invinity Energy 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
=-45.70% / 1.46
=-31.30%

* 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 -31.30% mean?
Invinity Energy Systems (STU:A10) has a ROE % Adjusted to Book Value of -31.30% 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 Invinity Energy Systems and its competitors.
Is Invinity Energy Systems' ROE % Adjusted to Book Value too high?
Invinity Energy Systems' current ROE % Adjusted to Book Value is -31.30%. Overall, Invinity Energy Systems has a GF Score™ of 46/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Invinity Energy Systems' ROE % Adjusted to Book Value compare to VRT and BE?
Invinity Energy Systems' ROE % Adjusted to Book Value of -31.30% can be compared against companies in the Industrial Products 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 Industrial Products company?
A good ROE % Adjusted to Book Value depends on the Industrial Products 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 Invinity Energy Systems and its competitors. Invinity Energy Systems's current ROE % Adjusted to Book Value is -31.30%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Invinity Energy Systems stock overvalued right now?
Based on GuruFocus' analysis, Invinity Energy Systems (STU:A10) is currently considered Significantly Overvalued. The stock's GF Value™ is €0.10, compared to a current price of €0.29 — trading 192% above its estimated fair value. The current ROE % Adjusted to Book Value is -31.30%. Invinity Energy Systems' overall GF Score™ is 46/100 with 6 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 Invinity Energy Systems (STU:A10), the current ROE % Adjusted to Book Value is -31.30% 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 Invinity Energy Systems (STU:A10) Overvalued in 2026?

Based on GuruFocus' analysis, Invinity Energy Systems stock appears to be overvalued. The current stock price of €0.29 is trading 192% above its estimated GF Value™ of €0.10. GuruFocus considers Invinity Energy Systems to be Significantly Overvalued.

Key valuation signals for STU:A10:

  • ROE % Adjusted to Book Value: -31.30%
  • GF Value™: €0.10 vs. price of €0.29 (192% above fair value)
  • GF Score™: 46/100 with 6 warning signs

No single metric tells the full story. See the STU:A10 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Invinity Energy Systems Business Description

Other Exchanges IESVF:USAIES:UKA10:Germany
Address 24 Chiswell Street, Office 3.03, 3rd Floor, London, GBR, EC1Y 4TY
Invinity Energy Systems PLC operates in the manufacturing of vanadium flow battery systems and their related installation and other services. Its vanadium flow batteries are a form of heavy-duty, stationary energy storage, used in high-utilization applications such as being coupled with industrial-scale solar generation for distributed, low-carbon energy projects. The company's flow battery systems are ideal for commercial and industrial sites, grid network infrastructure projects, and off-grid applications, either standalone or alongside renewable energy such as solar PV. It generates the majority of its revenue from the sale of Battery systems and associated control systems.
46GF 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.

€0.29
Price
€0.10
GF Value