Thelloy Development Group (HKSE:01546) Operating Margin %: -4.27% (As of Sep. 2025)

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HKSE:01546 Thelloy Development Group Ltd HKSE:01546
49 GF Score
Price HK$0.13
GF Value HK$0.20
Valuation Possible Value Trap
! 7 Warning Signs
View Full Analysis

What is Thelloy Development Group Operating Margin %?

Thelloy Development Group HKSE:01546 -0.77% 49 Operating Margin % is -4.27% as of Sep. 2025. GuruFocus rates HKSE:01546 with a GF Score™ of 49/100 and a GF Value™ of HK$0.20 (Possible Value Trap). The stock has 7 warning signs investors should review. Among 1,766 Construction companies, Thelloy Development Group ranks worse than 84.99% on this metric.

Operating Margin % is calculated as Operating Income divided by its Revenue. Thelloy Development Group's Operating Income for the six months ended in Sep. 2025 was HK$-11.1 Mil. Thelloy Development Group's Revenue for the six months ended in Sep. 2025 was HK$260.3 Mil. Therefore, Thelloy Development Group's Operating Margin % for the quarter that ended in Sep. 2025 was -4.27%.

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

HKSE:01546' s Operating Margin % Range Over the Past 10 Years
Min: -6.52   Med: 3.33   Max: 8.28
Current: -4.52


HKSE:01546's Operating Margin % is ranked worse than
84.99% of 1766 companies
in the Construction industry
Industry Median: 5.905 vs HKSE:01546: -4.52

Thelloy Development Group's 5-Year Average Operating Margin % Growth Rate was 0.00% per year.

Thelloy Development Group's Operating Income for the six months ended in Sep. 2025 was HK$-11.1 Mil. Its Operating Income for the trailing twelve months (TTM) ended in Sep. 2025 was HK$-21.2 Mil.

Warning Sign:

Thelloy Development Group Ltd had lost money in 67% of the time over the past 3quarters.


Thelloy Development Group  (HKSE:01546) 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.


Thelloy Development Group Operating Margin % Related Terms


Thelloy Development Group Operating Margin % Historical Data

* Premium members only.

The historical data trend for Thelloy Development Group'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.

Thelloy Development Group Operating Margin % Chart

Thelloy Development Group Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Operating Margin %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 2.74 5.20 -1.67 -6.52 -4.52

Thelloy Development Group Semi-Annual Data
Sep16 Mar17 Sep17 Mar18 Sep18 Mar19 Sep19 Mar20 Sep20 Mar21 Sep21 Mar22 Sep22 Mar23 Sep23 Mar24 Sep24 Mar25 Sep25 Mar26
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 -5.35 -6.28 -6.71 -4.27 -4.83

HKSE:01546 vs PWR, FIX, EME: Operating Margin % Comparison

For the Engineering & Construction subindustry, Thelloy Development Group'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.


Thelloy Development Group Operating Margin % vs Construction Industry

For the Construction industry and Industrials sector, Thelloy Development Group's Operating Margin % distribution charts can be found below:

* The bar in red indicates where Thelloy Development Group's Operating Margin % falls into.


HKSE:01546
49GF Score
Thelloy Development Group Ltd HKSE:01546
Operating Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Thelloy Development Group 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.

Thelloy Development Group's Operating Margin % for the fiscal year that ended in Mar. 2025 is calculated as

Operating Margin %=Operating Income (A: Mar. 2025 ) / Revenue (A: Mar. 2025 )
=-26.082 / 400.168
=-6.52 %

Thelloy Development Group's Operating Margin % for the quarter that ended in Sep. 2025 is calculated as

Operating Margin %=Operating Income (Q: Sep. 2025 ) / Revenue (Q: Sep. 2025 )
=-11.104 / 260.341
=-4.27 %

* 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 -4.27% mean?
Thelloy Development Group (HKSE:01546) has a Operating Margin % of -4.27% as of Sep. 2025. Operating margin is the ratio of total operating income to net sales. View historical data on Thelloy Development Group and its competitors. According to the industry distribution chart, Thelloy Development Group ranks #1501 out of 1766 companies in the Construction industry, placing it in the top 85%.
Is Thelloy Development Group's Operating Margin % too high?
Thelloy Development Group's current Operating Margin % is -4.27%. Based on the distribution chart, Thelloy Development Group ranks #1501 out of 1766 companies in the Construction industry, which is in the bottom quartile relative to peers. Overall, Thelloy Development Group has a GF Score™ of 49/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Thelloy Development Group's Operating Margin % compare to PWR and FIX?
According to the Construction industry distribution chart, Thelloy Development Group ranks #1501 out of 1766 companies for Operating Margin %. This places Thelloy Development Group in the lower half of its industry. The industry median Operating Margin % is 5.91. 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 a Construction company?
The median Operating Margin % among Construction companies is 5.91, based on 1,766 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. 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 Thelloy Development Group and its competitors. For the Construction industry, the median Operating Margin % is 5.91 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Thelloy Development Group's current Operating Margin % is -4.27%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Thelloy Development Group stock overvalued right now?
Based on GuruFocus' analysis, Thelloy Development Group (HKSE:01546) is currently considered Possible Value Trap. The stock's GF Value™ is HK$0.20, compared to a current price of HK$0.13 — trading 35.5% below its estimated fair value. The current Operating Margin % is -4.27%. Thelloy Development Group's overall GF Score™ is 49/100 with 7 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 Thelloy Development Group (HKSE:01546), the current Operating Margin % is -4.27% as of Sep. 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 Thelloy Development Group (HKSE:01546) Overvalued in 2026?

Based on GuruFocus' analysis, Thelloy Development Group stock appears to be undervalued. The current stock price of HK$0.13 is trading 35.5% below its estimated GF Value™ of HK$0.20. GuruFocus considers Thelloy Development Group to be Possible Value Trap.

Key valuation signals for HKSE:01546:

  • Operating Margin %: -4.27%
  • GF Value™: HK$0.20 vs. price of HK$0.13 (35.5% below fair value)
  • GF Score™: 49/100 with 7 warning signs

No single metric tells the full story. See the HKSE:01546 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Thelloy Development Group Business Description

Address 79 Wing Hong Street, 19/F, The Globe, Lai Chi Kok, Kowloon, Hong Kong, HKG
Thelloy Development Group Ltd along with its subsidiaries provides building construction services and repair, maintenance, alteration, and additional work services in Hong Kong. The company earns key revenue from building construction operations. Geographically the company caters its services only to the Hong Kong market. The company's services are majorly used by government, quasi-government organizations, institutions, schools, and private residential properties.
49GF Score

Get the complete analysis for HKSE:01546

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

HK$0.13
Price
HK$0.20
GF Value