ION Electronic Materials Co (ROCO:6959) Operating Margin %: -8.71% (As of Dec. 2025)


ROCO:6959 ION Electronic Materials Co Ltd ROCO:6959
51 GF Score
Price NT$130.50
GF Value NT$89.67
Valuation Significantly Overvalued
! 4 Warning Signs
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What is ION Electronic Materials Co Operating Margin %?

ION Electronic Materials Co ROCO:6959 +2.76% 51 Operating Margin % is -8.71% as of Dec. 2025. GuruFocus rates ROCO:6959 with a GF Score™ of 51/100 and a GF Value™ of NT$89.67 (Significantly Overvalued). The stock has 4 warning signs investors should review. Among 1,579 Chemicals companies, ION Electronic Materials Co ranks worse than 90.12% on this metric.

Operating Margin % is calculated as Operating Income divided by its Revenue. ION Electronic Materials Co's Operating Income for the six months ended in Dec. 2025 was NT$-33.5 Mil. ION Electronic Materials Co's Revenue for the six months ended in Dec. 2025 was NT$384.6 Mil. Therefore, ION Electronic Materials Co's Operating Margin % for the quarter that ended in Dec. 2025 was -8.71%.

The historical rank and industry rank for ION Electronic Materials Co's Operating Margin % or its related term are showing as below:

ROCO:6959' s Operating Margin % Range Over the Past 10 Years
Min: -48.36   Med: -8.73   Max: 6.64
Current: -10.52


ROCO:6959's Operating Margin % is ranked worse than
90.12% of 1579 companies
in the Chemicals industry
Industry Median: 6.02 vs ROCO:6959: -10.52

ION Electronic Materials Co's 5-Year Average Operating Margin % Growth Rate was 0.00% per year.

ION Electronic Materials Co's Operating Income for the six months ended in Dec. 2025 was NT$-33.5 Mil. Its Operating Income for the trailing twelve months (TTM) ended in Dec. 2025 was NT$-74.6 Mil.

Warning Sign:

ION Electronic Materials Co Ltd has never been profitable in the past 3 years. It lost money every year.


ION Electronic Materials Co  (ROCO:6959) 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.


ION Electronic Materials Co Operating Margin % Related Terms


ION Electronic Materials Co Operating Margin % Historical Data

* Premium members only.

The historical data trend for ION Electronic Materials Co'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.

ION Electronic Materials Co Operating Margin % Chart

ION Electronic Materials Co Annual Data
Trend Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Operating Margin %
Get a 7-Day Free Trial 1.72 6.64 -6.94 -17.79 -10.52

ION Electronic Materials Co Semi-Annual Data
Dec19 Dec20 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
Operating Margin % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only -0.33 -19.14 -16.70 -12.67 -8.71

ROCO:6959 vs LIN, SHW, ECL: Operating Margin % Comparison

For the Specialty Chemicals subindustry, ION Electronic Materials Co'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.


ION Electronic Materials Co Operating Margin % vs Chemicals Industry

For the Chemicals industry and Basic Materials sector, ION Electronic Materials Co's Operating Margin % distribution charts can be found below:

* The bar in red indicates where ION Electronic Materials Co's Operating Margin % falls into.


ROCO:6959
51GF Score
ION Electronic Materials Co Ltd ROCO:6959
Operating Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

ION Electronic Materials Co 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.

ION Electronic Materials Co'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 )
=-74.592 / 709.131
=-10.52 %

ION Electronic Materials Co'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 )
=-33.495 / 384.643
=-8.71 %

* 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 -8.71% mean?
ION Electronic Materials Co (ROCO:6959) has a Operating Margin % of -8.71% as of Dec. 2025. Operating margin is the ratio of total operating income to net sales. View historical data on ION Electronic Materials Co and its competitors. According to the industry distribution chart, ION Electronic Materials Co ranks #1423 out of 1579 companies in the Chemicals industry, placing it in the top 90.1%.
Is ION Electronic Materials Co's Operating Margin % too high?
ION Electronic Materials Co's current Operating Margin % is -8.71%. Based on the distribution chart, ION Electronic Materials Co ranks #1423 out of 1579 companies in the Chemicals industry, which is in the bottom quartile relative to peers. Overall, ION Electronic Materials Co has a GF Score™ of 51/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does ION Electronic Materials Co's Operating Margin % compare to LIN and SHW?
According to the Chemicals industry distribution chart, ION Electronic Materials Co ranks #1423 out of 1579 companies for Operating Margin %. This places ION Electronic Materials Co in the lower half of its industry. The industry median Operating Margin % is 6.02. 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 Chemicals company?
The median Operating Margin % among Chemicals companies is 6.02, based on 1,579 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 ION Electronic Materials Co and its competitors. For the Chemicals industry, the median Operating Margin % is 6.02 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. ION Electronic Materials Co's current Operating Margin % is -8.71%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is ION Electronic Materials Co stock overvalued right now?
Based on GuruFocus' analysis, ION Electronic Materials Co (ROCO:6959) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$89.67, compared to a current price of NT$130.50 — trading 45.5% above its estimated fair value. The current Operating Margin % is -8.71%. ION Electronic Materials Co's overall GF Score™ is 51/100 with 4 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 ION Electronic Materials Co (ROCO:6959), the current Operating Margin % is -8.71% 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 ION Electronic Materials Co (ROCO:6959) Overvalued in 2026?

Based on GuruFocus' analysis, ION Electronic Materials Co stock appears to be overvalued. The current stock price of NT$130.50 is trading 45.5% above its estimated GF Value™ of NT$89.67. GuruFocus considers ION Electronic Materials Co to be Significantly Overvalued.

Key valuation signals for ROCO:6959:

  • Operating Margin %: -8.71%
  • GF Value™: NT$89.67 vs. price of NT$130.50 (45.5% above fair value)
  • GF Score™: 51/100 with 4 warning signs

No single metric tells the full story. See the ROCO:6959 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


ION Electronic Materials Co Business Description

Address No. 195, Xiangxi Road, Hukou Township, Hsinchu, TWN, 303103
ION Electronic Materials Co Ltd focuses on special materials for the electronics industry and provides local services, With development capabilities and multi-national patents, it looks forward to contributing to Taiwan's technology industry. Its main products are advanced semiconductor materials. It has negative pressure steel cylinder production technology and localized production advantages. It has passed ISO 9001 certification and is a supplier partner of major semiconductor factories.
51GF Score

Get the complete analysis for ROCO:6959

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

NT$130.50
Price
NT$89.67
GF Value