TristelLSE:TSTL -0.25%94 Interest Coverage is 42.55 as of Dec. 2025, which is 9% above its 10-year median of 39.21. GuruFocus rates LSE:TSTL with a GF Score™ of 94/100 and a GF Value™ of £4.97 (Modestly Undervalued). The stock has 1 warning sign investors should review. Among 466 Medical Devices & Instruments companies, Tristel ranks better than 65.24% on this metric.
Interest Coverage is a ratio that determines how easily a company can pay interest expenses on outstanding debt. It is calculated by dividing a company's
Operating Income
by its Interest Expense. Tristel's
Operating Income
for the
six
months ended in Dec. 2025 was £5.02 Mil. Tristel's Interest Expense for the
six
months ended in Dec. 2025 was £-0.12 Mil.
Tristel's interest coverage for the quarter that ended in Dec. 2025 was 42.55.
The higher the ratio, the stronger the company's financial strength is.
The historical rank and industry rank for Tristel's Interest Coverage or its related term are showing as below:
LSE:TSTL'
s Interest Coverage Range Over the Past 10 Years
Min: 8.97 Med: 39.21 Max: No Debt
Current: 44.11
LSE:TSTL's Interest Coverage is ranked better than 65.24% of 466
companies
in the Medical Devices & Instruments industry
Industry Median: 15.875
vs LSE:TSTL: 44.11
Ben Graham requires that a company has a minimum interest coverage of 5 with the companies he invested. If the interest coverage is less than 2, the company is burdened by debt. Any business slow or recession may drag the company into a situation where it cannot pay the interest on its debt.
Interest Coverage is an important factor when GuruFocus ranks a company's overage Financial Strength .
Tristel Interest Coverage Related Terms
Tristel Interest Coverage Historical Data
* Premium members only.
The historical data trend for Tristel's Interest Coverage 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.
Note: For Interest Coverage, "No debt" indicates no long-term debt. An indication of "No Debt" does not necessarily mean that the company has no long-term debt obligations; it could be due to missing data in the quarterly or annual report. Use caution when interpreting this information.
LSE:TSTL vs ISRG, BDX, MDLN: Interest Coverage Comparison
For the Medical Instruments & Supplies subindustry, Tristel's Interest Coverage, along with its competitors' market caps and Interest Coverage 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 Interest Coverage vs Medical Devices & Instruments Industry
For the Medical Devices & Instruments industry and Healthcare sector, Tristel's Interest Coverage distribution charts can be found below:
* The bar in red indicates where Tristel's Interest Coverage falls into.
Interest Coverage is a ratio that determines how easily a company can pay interest expenses on outstanding debt. It is calculated by dividing a company's Operating Income (EBIT) by its Interest Expense:
* 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.
Tristel (LSE:TSTL) has a Interest Coverage of 42.55 as of Dec. 2025. Interest Coverage measures a company's capability to pay interest expenses on its debt. View historical data on Tristel and its competitors. This is near median its historical median of 39.21. Over the past decade, Tristel's Interest Coverage has ranged from 8.97 to 10,000.00. According to the industry distribution chart, Tristel ranks #162 out of 466 companies in the Medical Devices & Instruments industry, placing it in the top 34.8%.
Is Tristel's Interest Coverage too high?
Tristel's current Interest Coverage of 42.55 is near median its 10-year median of 39.21. Over the past 10 years, this metric has ranged from a low of 8.97 to a high of 10,000.00. The Medical Devices & Instruments industry median Interest Coverage is 15.88. Tristel's value of 42.55 is 168% above this industry median. Based on the distribution chart, Tristel ranks #162 out of 466 companies in the Medical Devices & Instruments industry, which is above the industry midpoint. Overall, Tristel has a GF Score™ of 94/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Tristel's Interest Coverage compare to ISRG and BDX?
According to the Medical Devices & Instruments industry distribution chart, Tristel ranks #162 out of 466 companies for Interest Coverage. This puts Tristel in the upper half of its industry. The industry median Interest Coverage is 15.88. Tristel's value of 42.55 is 168% above this benchmark. Historically, Tristel's own Interest Coverage has ranged from 8.97 to 10,000.00 over the past decade. While the company's 10-year median is 39.21 vs. the industry median of 15.88, Tristel has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Interest Coverage for a Medical Devices & Instruments company?
The median Interest Coverage among Medical Devices & Instruments companies is 15.88, based on 466 companies in the industry. Companies in the top quartile (top 25%) have a Interest Coverage significantly above this median, while those in the bottom quartile fall well below. However, Interest Coverage should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Tristel's current Interest Coverage of 42.55 is 168% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Interest Coverage mean?
A high Interest Coverage can signal that a stock is expensive relative to its fundamentals. Interest Coverage measures a company's capability to pay interest expenses on its debt. View historical data on Tristel and its competitors. For the Medical Devices & Instruments industry, the median Interest Coverage is 15.88 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Tristel's current Interest Coverage is 42.55, which is near median its own 10-year median of 39.21. 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 £3.95 — trading 20.5% below its estimated fair value. The current Interest Coverage is 42.55, which is near median its 10-year median of 39.21 and 168% above the Medical Devices & Instruments industry median of 15.88. Tristel's overall GF Score™ is 94/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Interest Coverage calculated?
Interest Coverage is calculated from a company's financial statements. For Tristel (LSE:TSTL), the current Interest Coverage is 42.55 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 Tristel (LSE:TSTL) Overvalued in 2026?
Based on GuruFocus' analysis, Tristel stock appears to be undervalued.
The current stock price of £3.95 is trading 20.5% below its estimated GF Value™ of £4.97.
GuruFocus considers Tristel to be Modestly Undervalued.
Key valuation signals for LSE:TSTL:
Interest Coverage: 42.55 (near median its 10-year median of 39.21)
GF Value™: £4.97 vs. price of £3.95 (20.5% below fair value)
Industry Position: 168% above the Medical Devices & Instruments median (#162 of 466)
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 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.
94GF Score
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