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Acter GroupROCO:5536 -1.34%74 Operating Margin % is 19.91% as of Mar. 2026, which is 64% above its 10-year median of 12.15. GuruFocus rates ROCO:5536 with a GF Score™ of 74/100 and a GF Value™ of NT$582.28 (Significantly Overvalued). The stock has 1 warning sign investors should review. Among 1,765 Construction companies, Acter Group ranks better than 85.61% on this metric.
Operating Margin % is calculated as Operating Income divided by its Revenue. Acter Group's Operating Income for the
three
months ended in Mar. 2026 was NT$2,310 Mil. Acter Group's Revenue for the
three
months ended in Mar. 2026 was NT$11,603 Mil. Therefore, Acter Group's Operating Margin % for the quarter that ended in Mar. 2026 was 19.91%.
Good Sign:
Acter Group Corp Ltd operating margin is expanding. Margin expansion is usually a good sign.
The historical rank and industry rank for Acter Group's Operating Margin % or its related term are showing as below:
ROCO:5536'
s Operating Margin % Range Over the Past 10 Years
Min: 7.15 Med: 12.15 Max: 15.69
Current: 15.69
ROCO:5536's Operating Margin % is ranked better than 85.61% of 1765
companies
in the Construction industry
Industry Median: 5.89
vs ROCO:5536: 15.69
Acter Group's 5-Year Average Operating Margin % Growth Rate was 5.60% per year.
Acter Group's Operating Income for the
three
months ended in Mar. 2026 was NT$2,310 Mil.
Its Operating Income for the trailing twelve months (TTM) ended in Mar. 2026 was NT$6,986 Mil.
Acter Group (ROCO:5536) 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 Nokias 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.
Acter Group Operating Margin % Related Terms
Acter Group Operating Margin % Historical Data
* Premium members only.
The historical data trend for Acter 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.
ROCO:5536 vs PWR, FIX, EME: Operating Margin % Comparison
For the Engineering & Construction subindustry, Acter 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.
Acter Group Operating Margin % vs Construction Industry
For the Construction industry and Industrials sector, Acter Group's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Acter Group's Operating Margin % falls into.
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.
Acter Group's Operating Margin % for the fiscal year that ended in Dec. 2025 is calculated as
* 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.
Acter Group (ROCO:5536) has a Operating Margin % of 19.91% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on Acter Group and its competitors. This is 64% above median its historical median of 12.15. Over the past decade, Acter Group's Operating Margin % has ranged from 7.15 to 15.69. According to the industry distribution chart, Acter Group ranks #254 out of 1765 companies in the Construction industry, placing it in the top 14.4%.
Is Acter Group's Operating Margin % too high?
Acter Group's current Operating Margin % of 19.91% is 64% above median its 10-year median of 12.15. Over the past 10 years, this metric has ranged from a low of 7.15 to a high of 15.69. The Construction industry median Operating Margin % is 5.89. Acter Group's value of 19.91% is 238% above this industry median. Based on the distribution chart, Acter Group ranks #254 out of 1765 companies in the Construction industry, which is in the top quartile — a strong position relative to peers. Overall, Acter Group has a GF Score™ of 74/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Acter Group's Operating Margin % compare to PWR and FIX?
According to the Construction industry distribution chart, Acter Group ranks #254 out of 1765 companies for Operating Margin %. This places Acter Group in the top 14% of its industry — outperforming the majority of peers. The industry median Operating Margin % is 5.89. Acter Group's value of 19.91% is 238% above this benchmark. Historically, Acter Group's own Operating Margin % has ranged from 7.15 to 15.69 over the past decade. While the company's 10-year median is 12.15 vs. the industry median of 5.89, Acter Group 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 Operating Margin % for a Construction company?
The median Operating Margin % among Construction companies is 5.89, based on 1,765 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. Acter Group's current Operating Margin % of 19.91% is 238% 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 Acter Group and its competitors. For the Construction industry, the median Operating Margin % is 5.89 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Acter Group's current Operating Margin % is 19.91%, which is 64% above median its own 10-year median of 12.15. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Acter Group stock overvalued right now?
Based on GuruFocus' analysis, Acter Group (ROCO:5536) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$582.28, compared to a current price of NT$1,105.00 — trading 89.8% above its estimated fair value. The current Operating Margin % is 19.91%, which is 64% above median its 10-year median of 12.15 and 238% above the Construction industry median of 5.89. Acter Group's overall GF Score™ is 74/100 with 1 warning sign 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 Acter Group (ROCO:5536), the current Operating Margin % is 19.91% as of Mar. 2026. 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 Acter Group (ROCO:5536) Overvalued in 2026?
Based on GuruFocus' analysis, Acter Group stock appears to be overvalued.
The current stock price of NT$1,105.00 is trading 89.8% above its estimated GF Value™ of NT$582.28.
GuruFocus considers Acter Group to be Significantly Overvalued.
Key valuation signals for ROCO:5536:
Operating Margin %: 19.91% (64% above median its 10-year median of 12.15)
GF Value™: NT$582.28 vs. price of NT$1,105.00 (89.8% above fair value)
Industry Position: 238% above the Construction median (#254 of 1765)
No single metric tells the full story. See the ROCO:5536 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Acter Group Corp Ltd is a Taiwan-based engineering and construction company. It is engaged in providing construction, design, and maintenance services related to air conditioners, environmental control services, clean room set-up, ice water machine trading, energy-storing equipment trading, ventilation engineering, and energy technology services. The group has three reportable segments: Taiwan, Mainland China, and other countries. The Taiwan segment provides engineering, maintenance, sales, and other services in the Taiwan area. The Mainland China segment provides engineering services and sales in Mainland China. The other segment provides engineering services in Vietnam, Singapore, Malaysia, and other countries.
74GF Score
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