Rosslyn Data Technologies (LSE:RDT) Pretax Margin %: -97.55% (As of Oct. 2025)

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What is Rosslyn Data Technologies Pretax Margin %?

Rosslyn Data Technologies LSE:RDT Pretax Margin % is -97.55% as of Oct. 2025. The stock has 7 warning signs investors should review. Among 2,826 Software companies, Rosslyn Data Technologies ranks worse than 87.23% on this metric.

Pre-Tax margin is calculated as Pre-Tax Income divided by its Revenue. Rosslyn Data Technologies's Pre-Tax Income for the six months ended in Oct. 2025 was £-1.48 Mil. Rosslyn Data Technologies's Revenue for the six months ended in Oct. 2025 was £1.51 Mil. Therefore, Rosslyn Data Technologies's pretax margin for the quarter that ended in Oct. 2025 was -97.55%.

The historical rank and industry rank for Rosslyn Data Technologies's Pretax Margin % or its related term are showing as below:

LSE:RDT' s Pretax Margin % Range Over the Past 10 Years
Min: -148.3   Med: -72.79   Max: -24.35
Current: -83.97


LSE:RDT's Pretax Margin % is ranked worse than
87.23% of 2826 companies
in the Software industry
Industry Median: 3.59 vs LSE:RDT: -83.97

Rosslyn Data Technologies  (LSE:RDT) Pretax Margin % Explanation

The pretax margin, as know as pretax profit margin, is widely used to measure the operating efficiency of a company before deducting taxes.

The pretax margin is sometimes preferred over the net margin as tax expenditures can make profitability comparisons between companies misleading.

It is a useful tool to compare companies operating in the same sector and less effective when comparing companies from other sectors as each industry generally has different operating expenses and sales patterns.

The long term trend of the pretax margin is a good indicator of the competitiveness and health of the business.


Rosslyn Data Technologies Pretax Margin % Related Terms


Rosslyn Data Technologies Pretax Margin % Historical Data

* Premium members only.

The historical data trend for Rosslyn Data Technologies's Pretax 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.

Rosslyn Data Technologies Pretax Margin % Chart

Rosslyn Data Technologies Annual Data
Trend Apr16 Apr17 Apr18 Apr19 Apr20 Apr21 Apr22 Apr23 Apr24 Apr25
Pretax Margin %
Get a 7-Day Free Trial Premium Member Only Premium Member Only -84.18 -148.30 -91.63 -125.93 -87.02

Rosslyn Data Technologies Semi-Annual Data
Apr16 Oct16 Apr17 Oct17 Apr18 Oct18 Apr19 Oct19 Apr20 Oct20 Apr21 Oct21 Apr22 Oct22 Apr23 Oct23 Apr24 Oct24 Apr25 Oct25
Pretax 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 -145.08 -107.44 -105.32 -71.25 -97.55

LSE:RDT vs UBER, SHOP, CRM: Pretax Margin % Comparison

For the Software - Application subindustry, Rosslyn Data Technologies's Pretax Margin %, along with its competitors' market caps and Pretax 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.


Rosslyn Data Technologies Pretax Margin % vs Software Industry

For the Software industry and Technology sector, Rosslyn Data Technologies's Pretax Margin % distribution charts can be found below:

* The bar in red indicates where Rosslyn Data Technologies's Pretax Margin % falls into.



Rosslyn Data Technologies Pretax Margin % Calculation

Pretax margin - also known as pretax profit margin is the ratio of Pretax Income divided by net sales or Revenue, usually presented in percent.

Rosslyn Data Technologies's Pretax Margin for the fiscal year that ended in Apr. 2025 is calculated as

Pretax Margin=Pre-Tax Income (A: Apr. 2025 )/Revenue (A: Apr. 2025 )
=-2.615/3.005
=-87.02 %

Rosslyn Data Technologies's Pretax Margin for the quarter that ended in Oct. 2025 is calculated as

Pretax Margin=Pre-Tax Income (Q: Oct. 2025 )/Revenue (Q: Oct. 2025 )
=-1.475/1.512
=-97.55 %

* 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 Pretax Margin % →
What does a Pretax Margin % of -97.55% mean?
Rosslyn Data Technologies (LSE:RDT) has a Pretax Margin % of -97.55% as of Oct. 2025. Pre-Tax margin is the ratio of total pre-tax income to net sales. View historical data on Rosslyn Data Technologies and its competitors. According to the industry distribution chart, Rosslyn Data Technologies ranks #2465 out of 2826 companies in the Software industry, placing it in the top 87.2%.
Is Rosslyn Data Technologies' Pretax Margin % too high?
Rosslyn Data Technologies' current Pretax Margin % is -97.55%. Based on the distribution chart, Rosslyn Data Technologies ranks #2465 out of 2826 companies in the Software industry, which is in the bottom quartile relative to peers.
How does Rosslyn Data Technologies' Pretax Margin % compare to UBER and SHOP?
According to the Software industry distribution chart, Rosslyn Data Technologies ranks #2465 out of 2826 companies for Pretax Margin %. This places Rosslyn Data Technologies in the lower half of its industry. The industry median Pretax Margin % is 3.59. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Pretax Margin % for a Software company?
The median Pretax Margin % among Software companies is 3.59, based on 2,826 companies in the industry. Companies in the top quartile (top 25%) have a Pretax Margin % significantly above this median, while those in the bottom quartile fall well below. However, Pretax 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 Pretax Margin % mean?
A high Pretax Margin % can signal that a stock is expensive relative to its fundamentals. Pre-Tax margin is the ratio of total pre-tax income to net sales. View historical data on Rosslyn Data Technologies and its competitors. For the Software industry, the median Pretax Margin % is 3.59 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Rosslyn Data Technologies's current Pretax Margin % is -97.55%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Rosslyn Data Technologies stock overvalued right now?
Based on GuruFocus' analysis, Rosslyn Data Technologies (LSE:RDT) is currently considered Possible Value Trap. The stock's GF Value™ is £0.03, compared to a current price of £0.02 — trading 38.3% below its estimated fair value. The current Pretax Margin % is -97.55%. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Pretax Margin % calculated?
Pretax Margin % is calculated from a company's financial statements. For Rosslyn Data Technologies (LSE:RDT), the current Pretax Margin % is -97.55% as of Oct. 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.

Rosslyn Data Technologies Business Description

Address c/o Ampa Holdings LLP, 32 London Bridge Street, Level 19, The Shard, London, GBR, SE1 9SG
Rosslyn Data Technologies PLC is a software company. The company is in the business of development and provision of data analytics software and management services. It has Provision of data analytics using a proprietary form operating segment. It operates in the United Kingdom, Europe and North America, out of which it generates maximum revenue from United Kingdom.