Tristel (LSE:TSTL) Margin of Safety % (DCF Earnings Based): -68.83% (As of Jun. 24, 2026)


LSE:TSTL Tristel PLC LSE:TSTL
96 GF Score
Price £3.90
GF Value £4.97
Valuation Modestly Undervalued
! 1 Warning Sign
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What is Tristel Margin of Safety % (DCF Earnings Based)?

Tristel LSE:TSTL +0.52% 96 Margin of Safety % (DCF Earnings Based) is -68.83% as of Jun. 24, 2026. GuruFocus rates LSE:TSTL with a GF Score™ of 96/100 and a GF Value™ of £4.97 (Modestly Undervalued). The stock has 1 warning sign investors should review.

Margin of Safety % (DCF Earnings Based) = (Intrinsic Value: DCF (Earnings Based) - Current Price) / Intrinsic Value: DCF (Earnings Based).

Note: Discounted Earnings 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.

As of today (2026-06-24), Tristel's Predictability Rank is 3.5-Stars. Tristel's intrinsic value calculated from the Discounted Earnings model is £2.31 and current share price is £3.90. Consequently,

Tristel's Margin of Safety % (DCF Earnings Based) using Discounted Earnings model is -68.83%.

LSE:TSTL vs ISRG, BDX, MDLN: Margin of Safety % (DCF Earnings Based) Comparison

For the Medical Instruments & Supplies subindustry, Tristel's Margin of Safety % (DCF Earnings Based), along with its competitors' market caps and Margin of Safety % (DCF Earnings 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.

Tristel Margin of Safety % (DCF Earnings Based) vs Medical Devices & Instruments Industry

For the Medical Devices & Instruments industry and Healthcare sector, Tristel's Margin of Safety % (DCF Earnings Based) distribution charts can be found below:

* The bar in red indicates where Tristel's Margin of Safety % (DCF Earnings Based) falls into.


LSE:TSTL
96GF Score
Tristel PLC LSE:TSTL
Margin of Safety % (DCF Earnings Based) is just one metric. See GF Score™, valuation, warning signs, and more.
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Tristel Margin of Safety % (DCF Earnings Based) Calculation

Tristel's Margin of Safety % (DCF Earnings Based) for today is calculated as

Margin of Safety % (DCF Earnings Based)=(Intrinsic Value: DCF (Earnings Based)-Current Price)/Intrinsic Value: DCF (Earnings Based)
=(2.31-3.90)/2.31
=-68.83 %

* 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.

The intrinsic value is calculated from the Discounted Earnings model with default parameters. The calculation method is the same as Discounted Cash Flow model except earnings are used in the calculation instead of free cash flow.

What does a Margin of Safety % (DCF Earnings Based) of -68.83% mean?
Tristel (LSE:TSTL) has a Margin of Safety % (DCF Earnings Based) of -68.83% as of Jun. 24, 2026. Margin of Safety % (DCF Earnings Based) is the percent difference between the current price and the intrinsic DCF Earnings price. View historical data on Tristel.
Is Tristel's Margin of Safety % (DCF Earnings Based) too high?
Tristel's current Margin of Safety % (DCF Earnings Based) is -68.83%. Overall, Tristel has a GF Score™ of 96/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Tristel's Margin of Safety % (DCF Earnings Based) compare to ISRG and BDX?
Tristel's Margin of Safety % (DCF Earnings Based) of -68.83% can be compared against companies in the Medical Devices & Instruments industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Margin of Safety % (DCF Earnings Based) for a Medical Devices & Instruments company?
A good Margin of Safety % (DCF Earnings Based) depends on the Medical Devices & Instruments industry context. However, Margin of Safety % (DCF Earnings Based) 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 Margin of Safety % (DCF Earnings Based) mean?
A high Margin of Safety % (DCF Earnings Based) can signal that a stock is expensive relative to its fundamentals. Margin of Safety % (DCF Earnings Based) is the percent difference between the current price and the intrinsic DCF Earnings price. View historical data on Tristel. Tristel's current Margin of Safety % (DCF Earnings Based) is -68.83%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tristel stock overvalued right now?
Based on GuruFocus' analysis, Tristel (LSE:TSTL) is currently considered Modestly Undervalued. The stock's GF Value™ is £4.97, compared to a current price of £3.90 — trading 21.5% below its estimated fair value. The current Margin of Safety % (DCF Earnings Based) is -68.83%. Tristel's overall GF Score™ is 96/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Margin of Safety % (DCF Earnings Based) calculated?
Margin of Safety % (DCF Earnings Based) is calculated from a company's financial statements. For Tristel (LSE:TSTL), the current Margin of Safety % (DCF Earnings Based) is -68.83% as of Jun. 24, 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 Tristel (LSE:TSTL) Overvalued in 2026?

Based on GuruFocus' analysis, Tristel stock appears to be undervalued. The current stock price of £3.90 is trading 21.5% below its estimated GF Value™ of £4.97. GuruFocus considers Tristel to be Modestly Undervalued.

Key valuation signals for LSE:TSTL:

  • Margin of Safety % (DCF Earnings Based): -68.83%
  • GF Value™: £4.97 vs. price of £3.90 (21.5% below fair value)
  • GF Score™: 96/100 with 1 warning sign

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

Tristel Business Description

Other Exchanges TSNLF:USAR1V:Germany
Address Fordham Road, Unit 1B, Lynx Business Park, Newmarket, Snailwell, Cambridgeshire, GBR, CB8 7NY
Tristel PLC's business is the sale to hospitals of its proprietary chlorine dioxide chemistry used for the decontamination of medical devices under the Tristel brand and for the sporicidal disinfection of environmental surfaces under the Cache brand. Its operating segments include hospital medical device decontamination products used predominantly for infection control in hospitals; the manufacture and sale of hospital environmental surface disinfection products; and pharmaceutical and personal care product manufacturing industries, veterinary and animal welfare. The company generates the majority of its revenue from hospital medical device decontamination and operates geographically in the UK and overseas markets.
96GF Score

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Margin of Safety % (DCF Earnings Based) is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

£3.90
Price
£4.97
GF Value