Rossmax International (ROCO:4121) Operating Margin %: -3.10% (As of Dec. 2025)


ROCO:4121 Rossmax International Ltd ROCO:4121
58 GF Score
Price NT$13.30
GF Value NT$19.07
Valuation Possible Value Trap
! 5 Warning Signs
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What is Rossmax International Operating Margin %?

Rossmax International ROCO:4121 +0.38% 58 Operating Margin % is -3.10% as of Dec. 2025. GuruFocus rates ROCO:4121 with a GF Score™ of 58/100 and a GF Value™ of NT$19.07 (Possible Value Trap). The stock has 5 warning signs investors should review. Among 816 Medical Devices & Instruments companies, Rossmax International ranks worse than 59.07% on this metric.

Operating Margin % is calculated as Operating Income divided by its Revenue. Rossmax International's Operating Income for the three months ended in Dec. 2025 was NT$-29 Mil. Rossmax International's Revenue for the three months ended in Dec. 2025 was NT$951 Mil. Therefore, Rossmax International's Operating Margin % for the quarter that ended in Dec. 2025 was -3.10%.

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

ROCO:4121' s Operating Margin % Range Over the Past 10 Years
Min: -3.91   Med: 0.01   Max: 5.98
Current: -1.91


ROCO:4121's Operating Margin % is ranked worse than
59.07% of 816 companies
in the Medical Devices & Instruments industry
Industry Median: 3.465 vs ROCO:4121: -1.91

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

Rossmax International's Operating Income for the three months ended in Dec. 2025 was NT$-29 Mil. Its Operating Income for the trailing twelve months (TTM) ended in Dec. 2025 was NT$-72 Mil.

Warning Sign:

Rossmax International Ltd had lost money in 67% of the time over the past 12quarters.


Rossmax International  (ROCO:4121) 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.


Rossmax International Operating Margin % Related Terms


Rossmax International Operating Margin % Historical Data

* Premium members only.

The historical data trend for Rossmax International'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.

Rossmax International Operating Margin % Chart

Rossmax International 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 3.45 5.98 0.07 -1.99 -1.91

Rossmax International Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 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 -3.69 -2.14 0.09 -2.55 -3.10

ROCO:4121 vs ABT, SYK, MDT: Operating Margin % Comparison

For the Medical Devices subindustry, Rossmax International'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.


Rossmax International Operating Margin % vs Medical Devices & Instruments Industry

For the Medical Devices & Instruments industry and Healthcare sector, Rossmax International's Operating Margin % distribution charts can be found below:

* The bar in red indicates where Rossmax International's Operating Margin % falls into.


ROCO:4121
58GF Score
Rossmax International Ltd ROCO:4121
Operating Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
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Rossmax International 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.

Rossmax International'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 )
=-72.382 / 3799.559
=-1.91 %

Rossmax International'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 )
=-29.441 / 950.934
=-3.10 %

* 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 -3.10% mean?
Rossmax International (ROCO:4121) has a Operating Margin % of -3.10% as of Dec. 2025. Operating margin is the ratio of total operating income to net sales. View historical data on Rossmax International and its competitors. According to the industry distribution chart, Rossmax International ranks #482 out of 816 companies in the Medical Devices & Instruments industry, placing it in the top 59.1%.
Is Rossmax International's Operating Margin % too high?
Rossmax International's current Operating Margin % is -3.10%. Based on the distribution chart, Rossmax International ranks #482 out of 816 companies in the Medical Devices & Instruments industry, which is below the industry midpoint. Overall, Rossmax International has a GF Score™ of 58/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Rossmax International's Operating Margin % compare to ABT and SYK?
According to the Medical Devices & Instruments industry distribution chart, Rossmax International ranks #482 out of 816 companies for Operating Margin %. This places Rossmax International in the lower half of its industry. The industry median Operating Margin % is 3.47. 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 Medical Devices & Instruments company?
The median Operating Margin % among Medical Devices & Instruments companies is 3.47, based on 816 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 Rossmax International and its competitors. For the Medical Devices & Instruments industry, the median Operating Margin % is 3.47 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Rossmax International's current Operating Margin % is -3.10%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Rossmax International stock overvalued right now?
Based on GuruFocus' analysis, Rossmax International (ROCO:4121) is currently considered Possible Value Trap. The stock's GF Value™ is NT$19.07, compared to a current price of NT$13.30 — trading 30.3% below its estimated fair value. The current Operating Margin % is -3.10%. Rossmax International's overall GF Score™ is 58/100 with 5 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 Rossmax International (ROCO:4121), the current Operating Margin % is -3.10% 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.

Is Rossmax International (ROCO:4121) Overvalued in 2026?

Based on GuruFocus' analysis, Rossmax International stock appears to be undervalued. The current stock price of NT$13.30 is trading 30.3% below its estimated GF Value™ of NT$19.07. GuruFocus considers Rossmax International to be Possible Value Trap.

Key valuation signals for ROCO:4121:

  • Operating Margin %: -3.10%
  • GF Value™: NT$19.07 vs. price of NT$13.30 (30.3% below fair value)
  • GF Score™: 58/100 with 5 warning signs

No single metric tells the full story. See the ROCO:4121 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Rossmax International Business Description

Address Kangchien Road, 12th Floor, No. 189, Neihu District, Taipei, TWN, 114
Rossmax International Ltd is mainly engaged in medical equipment manufacturing, wholesale or retail, and the medicine and cosmetics channels. The group has three reportable departments: the medical device department, the retail channel department, and the investment department. The medical device department manufactures various types of medical supplies. The retail channel department is engaged in the retail of cosmetics, medical equipment, food products, and beverages. Geographically, it derives key revenue from the Taiwan region and the rest from Iraq, Algeria, the U.S.A, the U.A.E, Malaysia, Iran, Kazakhstan, South Korea, Norway, Croatia, Tunisia, and Other.
58GF Score

Get the complete analysis for ROCO:4121

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

NT$13.30
Price
NT$19.07
GF Value