Mendell Helium (LSE:MDH) FCF Margin %: -2,480.95% (As of Dec. 2025)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

What is Mendell Helium FCF Margin %?

Mendell Helium LSE:MDH +7.29% FCF Margin % is -2,480.95% as of Dec. 2025. Among 960 Drug Manufacturers companies, Mendell Helium ranks worse than 96.77% on this metric.

FCF Margin % is calculated as Free Cash Flow divided by its Revenue. Mendell Helium's Free Cash Flow for the six months ended in Dec. 2025 was £-0.52 Mil. Mendell Helium's Revenue for the six months ended in Dec. 2025 was £0.02 Mil. Therefore, Mendell Helium's FCF Margin % for the quarter that ended in Dec. 2025 was -2,480.95%.

As of today, Mendell Helium's current FCF Yield % is -4.40%.

The historical rank and industry rank for Mendell Helium's FCF Margin % or its related term are showing as below:

LSE:MDH' s FCF Margin % Range Over the Past 10 Years
Min: -18550   Med: -18550   Max: -1270.49
Current: -1270.49


During the past 1 years, the highest FCF Margin % of Mendell Helium was -1270.49%. The lowest was -18550.00%. And the median was -18550.00%.

LSE:MDH's FCF Margin % is ranked worse than
96.77% of 960 companies
in the Drug Manufacturers industry
Industry Median: 2.39 vs LSE:MDH: -1270.49


Mendell Helium FCF Margin % Related Terms


Mendell Helium FCF Margin % Historical Data

* Premium members only.

The historical data trend for Mendell Helium's FCF 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.

Mendell Helium FCF Margin % Chart

Mendell Helium Annual Data
Trend Jun24
FCF Margin %
-18,550.00

Mendell Helium Semi-Annual Data
Jun24 Dec24 Jun25 Dec25
FCF Margin % 0.00 -273.78 -635.00 -2,480.95

LSE:MDH vs ZTS, UTHR, VTRS: FCF Margin % Comparison

For the Drug Manufacturers - Specialty & Generic subindustry, Mendell Helium's FCF Margin %, along with its competitors' market caps and FCF 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.


Mendell Helium FCF Margin % vs Drug Manufacturers Industry

For the Drug Manufacturers industry and Healthcare sector, Mendell Helium's FCF Margin % distribution charts can be found below:

* The bar in red indicates where Mendell Helium's FCF Margin % falls into.



Mendell Helium FCF Margin % Calculation

FCF margin is the ratio of Free Cash Flow divided by net sales or Revenue, usually presented in percent.

Mendell Helium's FCF Margin for the fiscal year that ended in Jun. 2024 is calculated as

FCF Margin=Free Cash Flow (A: Jun. 2024 )/Revenue (A: Jun. 2024 )
=-1.113/0.006
=-18,550.00 %

Mendell Helium's FCF Margin for the quarter that ended in Dec. 2025 is calculated as

FCF Margin=Free Cash Flow (Q: Dec. 2025 )/Revenue (Q: Dec. 2025 )
=-0.521/0.021
=-2,480.95 %

* 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 FCF Margin % →
What does a FCF Margin % of -2,480.95% mean?
Mendell Helium (LSE:MDH) has a FCF Margin % of -2,480.95% as of Dec. 2025. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on Mendell Helium and its competitors. According to the industry distribution chart, Mendell Helium ranks #929 out of 960 companies in the Drug Manufacturers industry, placing it in the top 96.8%.
Is Mendell Helium's FCF Margin % too high?
Mendell Helium's current FCF Margin % is -2,480.95%. Based on the distribution chart, Mendell Helium ranks #929 out of 960 companies in the Drug Manufacturers industry, which is in the bottom quartile relative to peers.
How does Mendell Helium's FCF Margin % compare to ZTS and UTHR?
According to the Drug Manufacturers industry distribution chart, Mendell Helium ranks #929 out of 960 companies for FCF Margin %. This places Mendell Helium in the lower half of its industry. The industry median FCF Margin % is 2.39. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good FCF Margin % for a Drug Manufacturers company?
The median FCF Margin % among Drug Manufacturers companies is 2.39, based on 960 companies in the industry. Companies in the top quartile (top 25%) have a FCF Margin % significantly above this median, while those in the bottom quartile fall well below. However, FCF Margin % 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 FCF Margin % mean?
A high FCF Margin % can signal that a stock is expensive relative to its fundamentals. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on Mendell Helium and its competitors. For the Drug Manufacturers industry, the median FCF Margin % is 2.39 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Mendell Helium's current FCF Margin % is -2,480.95%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Mendell Helium stock overvalued right now?
Mendell Helium (LSE:MDH) has a current FCF Margin % of -2,480.95%. The current FCF Margin % is -2,480.95%. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is FCF Margin % calculated?
FCF Margin % is calculated from a company's financial statements. For Mendell Helium (LSE:MDH), the current FCF Margin % is -2,480.95% 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.

Mendell Helium Business Description

Other Exchanges MDH:UK
Address Arran Road, Arran House, Perth, GBR, PH1 3DZ
Mendell Helium PLC is a helium production and exploration company. The company operates in Kansas. The project portfolio of the company includes Fort Dodge, Hugoton, and Bitcoin Treasury.