ROC % measures how well a company generates cash flow relative to the capital it has invested in its business. It is also called ROIC %. ION Electronic Materials Co's annualized return on capital (ROC %) for the quarter that ended in Dec. 2025 was -3.00%.
As of today (2026-07-01), ION Electronic Materials Co's WACC % is 9.52%. ION Electronic Materials Co's ROC % is -3.68% (calculated using TTM income statement data).
ION Electronic Materials Co earns returns that do not match up to its cost of capital. It will destroy value as it grows.
ION Electronic Materials Co (ROCO:6959) ROC % Explanation
ROC % measures how well a company generates cash flow relative to the capital it has invested in its business. It is also called ROIC %. The reason book values of debt and equity are used is because the book values are the capital the company received when issuing the debt or receiving the equity investments.
There are four key components to this definition. The first is the use of operating income or EBIT rather than net income in the numerator. The second is the tax adjustment to this operating income or EBIT, computed as a hypothetical tax based on an effective or marginal tax rate. The third is the use of book values for invested capital, rather than market values. The final is the timing difference; the capital invested is from the end of the prior year whereas the operating income or EBIT is the current year's number.
Why is ROC % important?
Because it costs money to raise capital. A firm that generates higher returns on investment than it costs the company to raise the capital needed for that investment is earning excess returns. A firm that expects to continue generating positive excess returns on new investments in the future will see its value increase as growth increases, whereas a firm that earns returns that do not match up to its cost of capital will destroy value as it grows.
As of today, ION Electronic Materials Co's WACC % is 9.52%. ION Electronic Materials Co's ROC % is -3.68% (calculated using TTM income statement data).
ION Electronic Materials Co earns returns that do not match up to its cost of capital. It will destroy value as it grows.
Be Aware
Like ROE % and ROA %, ROC % is calculated with only 12 months of data. Fluctuations in the company's earnings or business cycles can affect the ratio drastically. It is important to look at the ratio from a long term perspective.
* 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.
Note:
The Operating Income data used here is two times the semi-annual (Dec. 2025) data.
The tax rate is limited to between 0% and 100%.
* 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 (ROCO:6959) has a ROC % of -3.00% as of Dec. 2025. Return on capital is the ratio of current-period net income to average two-period capital. View historical data on ION Electronic Materials Co and its competitors.
Is ION Electronic Materials Co's ROC % too high?
ION Electronic Materials Co's current ROC % is -3.00%. 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 ROC % compare to LIN and SHW?
ION Electronic Materials Co's ROC % of -3.00% can be compared against companies in the Chemicals industry. The industry median ROC % is 4.46. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good ROC % for a Chemicals company?
The median ROC % among Chemicals companies is 4.46, based on 1,580 companies in the industry. Companies in the top quartile (top 25%) have a ROC % significantly above this median, while those in the bottom quartile fall well below. However, ROC % 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 ROC % mean?
A high ROC % can signal that a stock is expensive relative to its fundamentals. Return on capital is the ratio of current-period net income to average two-period capital. View historical data on ION Electronic Materials Co and its competitors. For the Chemicals industry, the median ROC % is 4.46 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. ION Electronic Materials Co's current ROC % is -3.00%. 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 ROC % is -3.00%. 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 ROC % calculated?
ROC % is calculated from a company's financial statements. For ION Electronic Materials Co (ROCO:6959), the current ROC % is -3.00% 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:
ROC %: -3.00%
GF Value™: NT$89.67 vs. price of NT$130.50 (45.5% above fair value)
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 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
ROC % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
ROCO:6959 has been successfully added to your 
