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Tan Delta Systems PLC (TAND) fair value: what the stock is really worth

As of Nov 11, 2026: fair value (intrinsic value) of Tan Delta Systems PLC stock £0.14, price £0.23, that is 38.9% below the price, quality 40 out of 100. Rating: strongly overvalued. The value is an estimate: none of our valuation models currently carries, it draws on revenue and assets compared with similar companies. Updated daily.

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Energy GB · ISIN GB00BMV2DK99

TD Tan Delta Systems PLC logo Thin data Nov 10, 2026

Tan Delta Systems PLC

TAND · LSE
Very expensive, weak quality

Our calculation puts a fair price 39% below what the stock costs today.

Low debt
Revenue last quarter +45% vs. a year ago.
Quality 40/100
Fair value £0.1375 · Strongly overvalued
Weak Growth (revenue 3y −8.1 %/yr in GBP)
Loss-making · -105.5% net margin (TTM)
Negative free cash flow
Trails peers (2/10)
Narrow moat 10/100 · thin data
Thin data
⟳ CyclicalEstimate⚠ Thinly traded
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What runs behind every stock

26 valuation models 8 families, DCF to NCAV 37 quality factors margins, balance sheet, cashflow, debt 6 AI factors moat, what no ratio measures 2,000+ data points verified, per stock, median

69 individual criteria per stock, every one traceable See the method →

Price vs Fair Value

£0.4700 £0.1200 Fair Value £0.1375 Aug 2023 Nov 2026

White line = price, green steps = our fair value per fiscal year. As of Nov 10, 2026.

How to read this chart

39‑month range £0.1200 – £0.4700 · fair‑value band £0.1031 – £0.1718 · the £0.2250 price screens above the £0.1375 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). As of Nov 10, 2026.

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Company profile

Tan Delta Systems plc engages in the development, manufacture, and sale of oil sensors in the United Kingdom, Europe, North and South America, Asia, and the Middle East.

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The company offers oil quality sensors; kits, including mobile oil test, display, and gateway kits; accessories, such as gateways, display express, gateway hubs, manifolds, and cables; and oil profiling services.

It serves the bioenergy, power generation, mining and mineral, commercial marine, manufacturing, agriculture, utilities, and transportation industries. Tan Delta Systems plc was incorporated in 2007 and is headquartered in Sheffield, the United Kingdom.

Stock analysis

Tan Delta Systems PLC (TAND) currently trades at £0.2250, while our estimate is £0.1375, 39% below the price, so the stock looks overvalued today.

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Valuation

None of our valuation models currently carries for this company, usually because of losses or heavy investment. The estimate draws on revenue and assets compared with similar companies and is less precise than a model-based fair value.

Scenario range: £0.1031 (bear) to £0.1718 (bull), the price of £0.2250 sits above it. Bear and bull are the same models on cautious and optimistic assumptions, a range, not a price target.

Quality & growth

The Quality Score stands at 40/100 (below-average quality), in the Energy sector.

Weak Growth: Revenue growth is inconsistent: the periods point in different directions, so there is no trend to rely on.

Tan Delta Systems PLC reported revenue of £1.2M in FY2025 versus £1.0M in FY2021, a compound +4.6%/yr. Reported net income was −£1.6M in FY2025.

Key figures

Market cap £16.5M Micro · P/S ratio 11.3 · EPS (TTM) £−0.0200 · Net margin −106% · Return on equity −68.2% · Return on assets (EBIT) −15.1% (5-year average) · Operating margin −99.5% · Revenue (TTM) £1.5M.

Competitive moat

Our AI-assisted moat analysis scores the competitive advantage at 10 out of 100 (low confidence).

What moves the price

The share trades about 45% below its 52-week high and at its 52-week low, currently below its 200-day average.

For context, the median of 10 Energy peers we cover trades at −28% fair-value upside, at −39%, TAND screens richer than that median.

Fair Value

Bear £0.1031 Fair Value £0.1375 Bull £0.1718
Price £0.2250 · Downside -38.9%
Estimate. None of our valuation models currently carries for this company, usually because of losses or heavy investment. The estimate draws on revenue and assets compared with similar companies and is less precise than a model-based fair value.

Quality Score breakdown

Overall quality 40/100

It rates the business: profits, how they develop, real cash, balance sheet, investing and share count.

Profitability 16
How much profit the company makes from its sales and capital
Quality Growth 30
Are margins and returns getting better?
Cashflow 12
Do the profits arrive as real cash?
Financial strength 100
Debt, balance sheet and risk of trouble
Investment 33
Does it invest with discipline instead of growing at any price?
Low Volatility 60
How calm the share price moves, does not count
Price momentum 7
Price momentum of the last 3 to 12 months, does not count
Near the 52-week high 0
Distance to the 52-week high, does not count
New shares 41
Buys back shares or issues new ones?

Open the full quality analysis →

Revenue & earnings trend

Growth Quality ⓘGrowth is valuable only when reinvestment earns attractive returns (Aswath Damodaran): sustainable growth depends on return on capital, reinvestment and efficiency. Basis: total company revenue over the periods shown on the cards (3Y/5Y/all years), not per share, so a merger can show up as a growth jump; per-share earnings growth is in the value-creation card. 18/100
Revenue growth is inconsistent: the periods point in different directions, so there is no trend to rely on.
Revenue growth 1 year
+0.6%
Revenue growth 3 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
−8.1%
Revenue growth 5 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+3.1%
Start year 2020 (pandemic)
Profit margin (trend) ⓘOperating margin then vs now, from reported annual statements. A falling margin after a boom year is the classic peak-earnings signal: the growth rate then leans on an inflated base.
−7.3% (2020) → −136.4% (2025)
What shareholders gained per year ⓘWe only publish this rate when it is defensible. Reason: fiscal 2025 is a loss year, no rate is defined from a loss
not computed

TAND screens overvalued: fair value 39% below the price. Compare with SLB N.V →

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Peer GroupⓘHow this stock ranks against its industry: the green marker is this stock, the band is the typical 25–75% peer range, and the tick is the median.Oil & Gas Equipment & Services · 173 stocks

Beats the industry median on 1/8 measures
Overall it trails its industry peers.
Valuation
Quality Score 40 · Bottom 25%
Fair Value upside −38.9% · Bottom 25%
Profitability
Return on assets −61.0% · Bottom 25%
Net margin (12 months) −105.5% · Bottom 25%
Operating margin (12 months) −99.5% · Bottom 25%
Growth and dividend
Revenue growth (quarter YoY) 45.1% · Top 25%

Valuation Multiplesvs Oil & Gas Equipment & Services median · lower = cheaper

P/B 7.31× · Priciest 25%
P/S (12 months) 11.29× · Priciest 25%

Strength profile in five axes (Snowflake)

VALUEFUTUREPASTHEALTHDIVIDEND
This stock
VALUEFUTUREPASTHEALTHDIVIDEND
Sector peers
VALUE (fair-value potential)0 · sector 20
FUTURE (revenue growth)100 · sector 38
PAST (return on equity)0 · sector 27
HEALTH (low debt)100 · sector 91
DIVIDEND (yield)0 · sector 39

VALUE 0: the price sits above our fair-value range.

Context: sector, industry, market

Values & ESG

Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.

Oil & gas

Similar stocks

10 more Oil & Gas Equipment & Services stocks, each showing price versus our Fair Value estimate.

Stock Price Fair Value vs Fair Value Compare
Yantai Jereh Oilfield Services Group 002353 ¥81.75 ¥91.31 +12% vs TAND
Gaztransport & Technigaz SA GTT €187.00 €203.50 +9% vs TAND
China Oilfield Services Limited 601808 ¥12.49 ¥13.04 +4% vs TAND
Subsea 7 S.A SUBC kr 322.00 kr 257.37 −20% vs TAND
Tenaris S.A TEN €27.49 €19.76 −28% vs TAND
Halliburton Company HAL $32.93 $21.72 −34% vs TAND
Baker Hughes Company BKR $49.41 $32.37 −34% vs TAND
Saipem SpA SPM €4.33 €2.72 −37% vs TAND
SLB N.V SLB $50.96 $30.94 −39% vs TAND
TechnipFMC plc FTI $65.39 $28.12 −57% vs TAND

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Tan Delta Systems PLC: fair value per Fair Value Calculator

Cite: Fair Value Calculator (2026). "Tan Delta Systems PLC Fair Value". https://www.fairvalue-calculator.com/stock/TAND

Frequently asked questions

Is Tan Delta Systems PLC (TAND) overvalued or undervalued?
As of Nov 10, 2026, our estimate of fair value is £0.1375 versus a price of £0.2250, about 39% lower (overvalued).
What is the fair value of TAND?
Our estimate for Tan Delta Systems PLC is £0.1375 (as of Nov 10, 2026), built from audited fundamentals. The current price: £0.2250.
What is the quality score of TAND?
Tan Delta Systems PLC has a Quality Score of 40/100. It measures business quality (profitability, growth, cash flow, balance-sheet strength, investment discipline, share issuance). Market factors such as price momentum and volatility do not enter the number; they are shown separately in the detail view.
What is the price target for Tan Delta Systems PLC (TAND)?
Our calculated price target is the estimate of £0.1375 (as of Nov 10, 2026). Cautious scenario £0.1031, optimistic scenario £0.1718. It is an estimate from revenue and assets compared with similar companies, because none of our valuation models currently carries, not an analyst target.
What is the Tan Delta Systems PLC stock forecast for 2026?
Our estimate puts fair value at £0.1375, about 39% lower versus a price of £0.2250 (overvalued). Cautious scenario £0.1031, optimistic scenario £0.1718. The calculation is refreshed regularly with new filings.
What is the revenue of Tan Delta Systems PLC (TAND)?
Tan Delta Systems PLC reported trailing-twelve-month revenue of about £1.5M (latest available figure, as of Nov 10, 2026).
What is the intrinsic value of Tan Delta Systems PLC (TAND)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For Tan Delta Systems PLC it is £0.1375 per share (as of Nov 10, 2026), against a price of £0.2250.
Is Tan Delta Systems PLC stock overvalued or undervalued in 2026?
As of Nov 10, 2026, TAND trades above its calculated fair value: price £0.2250, fair value £0.1375, a gap of about −39% (overvalued). The calculation is refreshed with each new quarterly report, so the verdict can change during the year.
Is fair value the same as the market price of TAND?
No. The price is what the market pays today (£0.2250); the fair value is what the company's own numbers justify (£0.1375). For Tan Delta Systems PLC the two are £0.0875 per share apart. That gap is exactly why we show both numbers side by side.
How much is Tan Delta Systems PLC worth?
The market values Tan Delta Systems PLC at about £16.5M (market capitalisation, as of Nov 10, 2026). Per share that is £0.2250; our models calculate a fair value of £0.1375 per share.
What do the bullish and bearish scenarios say about TAND?
Our models span a range for Tan Delta Systems PLC: cautious scenario £0.1031, base £0.1375, optimistic £0.1718 per share (as of Nov 10, 2026, price £0.2250). The range comes from different growth and margin assumptions, not from analyst opinions.
How solid is the balance sheet of Tan Delta Systems PLC (TAND)?
Balance-sheet figures for Tan Delta Systems PLC (as of Nov 10, 2026): return on equity −68.2%. They feed the Quality Score of 40/100, which measures business quality independently of the share price.
How far is TAND from its 52-week high?
Tan Delta Systems PLC trades at £0.2250, about 45% below its 52-week high of £0.4080 and at the low of £0.2250 (as of Nov 11, 2026). Distance from the high says nothing about value: that is what the fair value of £0.1375 is for.
Which stocks are comparable to Tan Delta Systems PLC?
From the same area (Energy) we also value SLB N.V, Baker Hughes Company, Tenaris S.A, Halliburton Company, among others. Each of them has its own fair-value calculation on this site using the same models, so the comparison is like for like.
Is Tan Delta Systems PLC stock attractive at the current price?
The data as of Nov 10, 2026: price £0.2250, calculated fair value £0.1375 (−39%), Quality Score 40/100. Whether that fits your horizon and risk tolerance is your call. We provide the calculation, not investment advice.
Is it still worth investing in stocks now?
The global stock market currently sits 14.0% above its aggregate fair value. Tan Delta Systems PLC itself currently trades above fair value. An expensive market is no reason to stay out and no reason to buy everything at once: keep a broad savings plan running, buy single stocks only with money you can do without, and hold part of your money liquid while the market is high. The full picture including sectors is on is it worth investing now.
What is the share price of Tan Delta Systems PLC (TAND)?
The closing price on Nov 11, 2026 was £0.2250. Our estimate is £0.1375, about 39% lower (overvalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with Tan Delta Systems PLC right now?
The price sits above even our optimistic bull case (£0.1718). The favourable scenario is already priced in. Weak quality (40/100) and above fair value at the same time, the margin of safety is missing on both counts. The large gap to fair value rests on thin data (low evidence): fewer applicable models and a shorter history. Read it with extra caution.

Key figures of Tan Delta Systems PLC

How large is the market capitalisation of Tan Delta Systems PLC (TAND)?
The market capitalisation of Tan Delta Systems PLC is £16.5M. The stock-market value of the whole company: share price times number of shares. It is what the market asks for the entire business today.
What is the P/S ratio of Tan Delta Systems PLC (TAND)?
The price-to-sales ratio of Tan Delta Systems PLC is 11.3 (last twelve months). Price to sales: market value relative to yearly revenue. Useful when profit is thin or distorted.
What are the earnings per share of Tan Delta Systems PLC (TAND)?
Earnings per share at Tan Delta Systems PLC are £−0.0200. Earnings per share over the last twelve months: total profit spread across every single share.
What is the net margin of Tan Delta Systems PLC (TAND)?
The net margin of Tan Delta Systems PLC is −106% (last twelve months). How much of every unit of revenue ends up as profit. 10% means 10 cents of profit per dollar of sales.
What is the return on equity of Tan Delta Systems PLC (TAND)?
The return on equity (ROE) of Tan Delta Systems PLC is −68.2% (last twelve months). Profit relative to shareholders' equity, how efficiently the company works with its owners' money.
What is the EBIT return on assets of Tan Delta Systems PLC (TAND)?
On an EBIT basis the return on assets of Tan Delta Systems PLC is −15.1% (avg 5y). Operating profit (EBIT) relative to everything the company owns, as a multi-year average. It describes the business model rather than one good or bad year.
What is the operating margin of Tan Delta Systems PLC (TAND)?
The operating margin of Tan Delta Systems PLC is −99.5% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at Tan Delta Systems PLC (TAND)?
Revenue at Tan Delta Systems PLC is growing +45.1% versus a year earlier (3y avg −8.1%). How much revenue grew versus a year earlier (YoY). The 3-year average next to it puts the single year in context.
How much free cash flow does Tan Delta Systems PLC (TAND) generate?
The free cash flow of Tan Delta Systems PLC is −£1.6M (fiscal year 2025). The cash truly left after running and investing in the business, this is what pays dividends and buybacks.
How much net cash does Tan Delta Systems PLC (TAND) hold?
Tan Delta Systems PLC holds more cash than debt, £1.4M net (fiscal year 2025). The company holds more cash than debt, a safety cushion.
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