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Invinity Energy Systems plc (IES) Fair Value & Analysis

Industrials · GB · Market cap 203M GBX

IE Invinity Energy Systems plc IES · LSE
Price£0.3740
Fair Value£0.2100
Upside-43.9%
Quality95/100
Evidence: Low Range £0.1600 – £0.2600

Fair value as of: Jun 24, 2026

From 2 valuation models · updated 5 days ago

Share price −14.6% over the past month.

Price vs Fair Value (12 months)

£0.4928 £0.2001 Fair Value £0.2100 Jun 2025 Jun 2026

12‑month range £0.2001 – £0.4928 · fair‑value band £0.1600 – £0.2600 · the £0.3740 price screens above the £0.2100 fair value. As of Jun 24, 2026.

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Analysis

Invinity Energy Systems plc (IES) currently trades at £0.3740, while our model-based Fair Value estimate is £0.2100 — implying the stock looks roughly 43.9% overvalued today. We read business quality at 95/100 (high quality), in the Industrials sector. Bear case: priced above our estimate, the market already discounts strong expectations. Bull case: above-average quality can justify a premium — the entry price still matters most (evidence: low).

Trailing-twelve-month revenue stands at £3.6M. Revenue declined 84.4% year over year. It earns a return on equity of -32.5%. The balance sheet holds a net cash position of £30.7M. Fundamentals as of Jun 24, 2026

Key figures & financial health

Revenue (TTM) 3.6M GBX
Revenue growth (YoY) -84.4%
Return on equity -32.5%
Free cash flow −34.2M GBX FY2025
Operating margin -3,964%
EPS (TTM) £-0.0500
More key figures
Net cash 30.7M GBX FY2024

Figures from reported company fundamentals (EODHD) · as of Jun 24, 2026. TTM = trailing twelve months.

About the company

Invinity Energy Systems plc manufactures and sells vanadium flow batteries and related hardware for energy storage markets in Asia, Australia, Europe, and North America. It also provides other services. The company sells its products under the Invinity ENDURIUM and Invinity VS3 brands. It serves utilities and power producers, commercial and industrial, and independent industries. Invinity Energy Systems plc was incorporated in 2006 and is based in London, the United Kingdom.

Revenue & earnings trend

FY2021 – FY2025 · reported fiscal years

Invinity Energy Systems plc reported revenue of £8.2M in FY2025 versus £3.2M in FY2021, a compound +26.6%/yr. Reported net income was −£24.1M in FY2025.

Revenue +26.6%/yr
FY21 £3.2M
FY22 £2.9M
FY23 £22.0M
FY24 £5.0M
FY25 £8.2M
Net income
FY21 −£21.0M
FY22 −£18.6M
FY23 −£23.2M
FY24 −£22.8M
FY25 −£24.1M

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Frequently asked questions

Is Invinity Energy Systems plc (IES) undervalued?
As of Jun 24, 2026, our model estimates a fair value of £0.2100 versus a price of £0.3740 — about −44% (overvalued). Model-based estimate, not financial advice.
What is the fair value of IES?
Our 21-model fair value for Invinity Energy Systems plc is £0.2100 (as of Jun 24, 2026), built from audited fundamentals. The current price is £0.3740.
What is the quality score of IES?
Invinity Energy Systems plc has a Quality Score of 95/100, measuring profitability, growth and balance-sheet strength from non-valuation factors.
What is the revenue of Invinity Energy Systems plc (IES)?
Invinity Energy Systems plc reported trailing-twelve-month revenue of about £3.6M (latest available figure, as of Jun 24, 2026).
What is the net profit margin of IES?
The net profit margin of Invinity Energy Systems plc is about 0.0%, meaning it keeps roughly 0.0% of revenue as net income. Based on the latest reported figures.

How we calculate Fair Value

Each company is valued through a stack of independent intrinsic-value models (DCF variants, residual-income, multiples and more), blended into one family-balanced consensus and weighted by how much trustworthy data backs it. A separate quality layer scores the fundamentals. Every input is real reported data — nothing guessed.

Educational research only · not financial advice · no buy/sell recommendation. Model-based estimates are not certainties; their reliability depends on data quality and assumptions.