Thalassa Holdings (LSE:THAL) Operating Margin %: 214.37% (As of Dec. 2025)


LSE:THAL Thalassa Holdings Ltd LSE:THAL
33 GF Score
Price £0.24
! 3 Warning Signs
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What is Thalassa Holdings Operating Margin %?

Thalassa Holdings LSE:THAL 33 Operating Margin % is 214.37% as of Dec. 2025. GuruFocus rates LSE:THAL with a GF Score™ of 33/100. The stock has 3 warning signs investors should review. Among 916 Oil & Gas companies, Thalassa Holdings ranks worse than 88.86% on this metric.

Operating Margin % is calculated as Operating Income divided by its Revenue. Thalassa Holdings's Operating Income for the six months ended in Dec. 2025 was £-0.36 Mil. Thalassa Holdings's Revenue for the six months ended in Dec. 2025 was £-0.17 Mil. Therefore, Thalassa Holdings's Operating Margin % for the quarter that ended in Dec. 2025 was 214.37%.

The historical rank and industry rank for Thalassa Holdings's Operating Margin % or its related term are showing as below:

LSE:THAL' s Operating Margin % Range Over the Past 10 Years
Min: -120233.33   Med: -1024.46   Max: 312.79
Current: -59.52


LSE:THAL's Operating Margin % is ranked worse than
88.86% of 916 companies
in the Oil & Gas industry
Industry Median: 6.86 vs LSE:THAL: -59.52

Thalassa Holdings's 5-Year Average Operating Margin % Growth Rate was 0.00% per year.

Thalassa Holdings's Operating Income for the six months ended in Dec. 2025 was £-0.36 Mil. Its Operating Income for the trailing twelve months (TTM) ended in Dec. 2025 was £-0.25 Mil.


Thalassa Holdings  (LSE:THAL) Operating Margin % Explanation

Just like Gross Margin %, it is important to see a company maintains its operating margin over time. Among the same industry, a company with higher operating margin is more efficient in its operation. It is also more stable during industry slowdown or recessions. Peter Lynch prefers those with higher margins than those with lower margins.


Be Aware

Operating Margin % can be manipulated by adjusting the rate of depreciation, depletion and amortization (DDA).

If a company is facing competition, its Operating Margin % may decline. Often the Operating Margin % declines well before the company's Revenue or even profit decline. Therefore, Operating Margin % is a very important indicator of whether the company is facing problems.

For instance, by 2012, Nokia (NOK)'s problems were well known and its stock had lost more than 90% of its market value since 2007. But Nokia’s Operating Margin % had already been in decline since 2002, although its Earnings per Share (Diluted) were still rising. Investors who paid attention to Operating Margin % would have avoided this huge loss. The same can be said for Research-in-Motion (RIMM).

Therefore, Operating Margin % is a very important screening filter for GuruFocus. GuruFocus's Buffett-Munger screener requires that the profit margin is either consistent or expanding. The Model Portfolio of the Buffett-Munger screener has outperformed the market every year since inception in 2009.


Thalassa Holdings Operating Margin % Related Terms


Thalassa Holdings Operating Margin % Historical Data

* Premium members only.

The historical data trend for Thalassa Holdings's Operating Margin % 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.

Thalassa Holdings Operating Margin % Chart

Thalassa Holdings Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Operating Margin %
Get a 7-Day Free Trial Premium Member Only Premium Member Only -1,024.46 -215.20 -121.27 312.79 -59.52

Thalassa Holdings Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
Operating Margin % 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 Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only -93.62 101.31 189.71 19.07 214.37

LSE:THAL vs SLB, BKR, HAL: Operating Margin % Comparison

For the Oil & Gas Equipment & Services subindustry, Thalassa Holdings's Operating Margin %, along with its competitors' market caps and Operating Margin % 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.


Thalassa Holdings Operating Margin % vs Oil & Gas Industry

For the Oil & Gas industry and Energy sector, Thalassa Holdings's Operating Margin % distribution charts can be found below:

* The bar in red indicates where Thalassa Holdings's Operating Margin % falls into.


LSE:THAL
33GF Score
Thalassa Holdings Ltd LSE:THAL
Operating Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
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Thalassa Holdings Operating Margin % Calculation

Operating Margin % - also known as operating income margin, operating profit margin and return on sales (ROS) - is the ratio of Operating Income divided by net sales or Revenue, usually presented in percent.

Thalassa Holdings's Operating Margin % for the fiscal year that ended in Dec. 2025 is calculated as

Operating Margin %=Operating Income (A: Dec. 2025 ) / Revenue (A: Dec. 2025 )
=-0.247 / 0.415
=-59.52 %

Thalassa Holdings's Operating Margin % for the quarter that ended in Dec. 2025 is calculated as

Operating Margin %=Operating Income (Q: Dec. 2025 ) / Revenue (Q: Dec. 2025 )
=-0.358 / -0.167
=214.37 %

* 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.

Frequently Asked Questions Learn more about Operating Margin % →
What does a Operating Margin % of 214.37% mean?
Thalassa Holdings (LSE:THAL) has a Operating Margin % of 214.37% as of Dec. 2025. Operating margin is the ratio of total operating income to net sales. View historical data on Thalassa Holdings and its competitors. According to the industry distribution chart, Thalassa Holdings ranks #814 out of 916 companies in the Oil & Gas industry, placing it in the top 88.9%.
Is Thalassa Holdings' Operating Margin % too high?
Thalassa Holdings' current Operating Margin % is 214.37%. The Oil & Gas industry median Operating Margin % is 6.86. Thalassa Holdings' value of 214.37% is 3024.9% above this industry median. Based on the distribution chart, Thalassa Holdings ranks #814 out of 916 companies in the Oil & Gas industry, which is in the bottom quartile relative to peers. Overall, Thalassa Holdings has a GF Score™ of 33/100, reflecting its overall financial health beyond just this single metric.
How does Thalassa Holdings' Operating Margin % compare to SLB and BKR?
According to the Oil & Gas industry distribution chart, Thalassa Holdings ranks #814 out of 916 companies for Operating Margin %. This places Thalassa Holdings in the lower half of its industry. The industry median Operating Margin % is 6.86. Thalassa Holdings' value of 214.37% is 3024.9% above this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Operating Margin % for an Oil & Gas company?
The median Operating Margin % among Oil & Gas companies is 6.86, based on 916 companies in the industry. Companies in the top quartile (top 25%) have a Operating Margin % significantly above this median, while those in the bottom quartile fall well below. However, Operating Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Thalassa Holdings's current Operating Margin % of 214.37% is 3024.9% 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 Operating Margin % mean?
A high Operating Margin % can signal that a stock is expensive relative to its fundamentals. Operating margin is the ratio of total operating income to net sales. View historical data on Thalassa Holdings and its competitors. For the Oil & Gas industry, the median Operating Margin % is 6.86 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Thalassa Holdings's current Operating Margin % is 214.37%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Thalassa Holdings stock overvalued right now?
Thalassa Holdings (LSE:THAL) has a current Operating Margin % of 214.37%. The current Operating Margin % is 214.37% and 3024.9% above the Oil & Gas industry median of 6.86. Thalassa Holdings' overall GF Score™ is 33/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Operating Margin % calculated?
Operating Margin % is calculated from a company's financial statements. For Thalassa Holdings (LSE:THAL), the current Operating Margin % is 214.37% 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.

Thalassa Holdings Business Description

Industry EnergyOil & Gas
Address Folio Chambers, P.O. Box 800, Tortola, Road Town, VGB, VG1110
Thalassa Holdings Ltd is an international business company. It is a holding company with interests in property, and marine seismic/defense R&D. The company has two operating segments comprised of rental income through the Aperion Group and Product Development through the rest of the Group.
33GF Score

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Operating Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

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