Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
Episil Technologies's Operating Income for the
three
months ended in Jun. 2026 was NT$20 Mil.
Its Operating Income for the trailing twelve months (TTM) ended in Jun. 2026 was NT$-478 Mil.
Warning Sign:
Episil Technologies Inc had lost money in 83% of the time over the past 12quarters.
Operating Income or EBIT is linked to Return on Capital for both regular definition and Joel Greenblatt's definition.
Episil Technologies's annualizedROC % for the quarter that ended in Jun. 2026 was 0.00%.
Episil Technologies's annualizedROC (Joel Greenblatt) % for the quarter that ended in Jun. 2026 was 2.45%.
* 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.
4. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the Operating Income growth rate using Operating Income per share data.
Be Aware
Compared with a company's EBITDA margin, 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 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.
Episil Technologies Operating Income Related Terms
Episil Technologies Operating Income Historical Data
* Premium members only.
The historical data trend for Episil Technologies's Operating Income 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.
Operating Income, is the profit a company earned through operations. All expenses, including cash expenses such as cost of goods sold (COGS), research & development, wages, and non-cash expenses, such as depreciation, depletion and amortization, have been deducted from the sales.
Operating Income for the trailing twelve months (TTM) ended in Jun. 2026 adds up the quarterly data reported by the company within the most recent 12 months, which was NT$-478 Mil.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Episil Technologies (ROCO:3707) has a Operating Income of NT$-478 Mil as of Jun. 2026. Operating Income equals sales less all operating expenses. It is linked to EBIT. View historical data on Episil Technologies and its competitors.
Is Episil Technologies' Operating Income too high?
Episil Technologies' current Operating Income is NT$-478 Mil. Overall, Episil Technologies has a GF Score™ of 56/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Episil Technologies' Operating Income compare to NVDA and AVGO?
Episil Technologies' Operating Income of NT$-478 Mil can be compared against companies in the Semiconductors industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Operating Income for a Semiconductors company?
A good Operating Income depends on the Semiconductors industry context. However, Operating Income 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 Income mean?
A high Operating Income can signal that a stock is expensive relative to its fundamentals. Operating Income equals sales less all operating expenses. It is linked to EBIT. View historical data on Episil Technologies and its competitors. Episil Technologies's current Operating Income is NT$-478 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Episil Technologies stock overvalued right now?
Based on GuruFocus' analysis, Episil Technologies (ROCO:3707) is currently considered Modestly Overvalued. The stock's GF Value™ is NT$49.54, compared to a current price of NT$62.90 — trading 27% above its estimated fair value. The current Operating Income is NT$-478 Mil. Episil Technologies' overall GF Score™ is 56/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Operating Income calculated?
Operating Income is calculated from a company's financial statements. For Episil Technologies (ROCO:3707), the current Operating Income is NT$-478 Mil as of Jun. 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 Episil Technologies (ROCO:3707) Overvalued in 2026?
Based on GuruFocus' analysis, Episil Technologies stock appears to be overvalued.
The current stock price of NT$62.90 is trading 27% above its estimated GF Value™ of NT$49.54.
GuruFocus considers Episil Technologies to be Modestly Overvalued.
Key valuation signals for ROCO:3707:
Operating Income: NT$-478 Mil
GF Value™: NT$49.54 vs. price of NT$62.90 (27% above fair value)
No single metric tells the full story. See the ROCO:3707 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Episil Technologies Inc is engaged in general investment, research, development, manufacture and sales of epitaxial and silicon chips, mixed-signal integrated circuit and linear integrated circuit and research and development of 6" SiC G3/G4 Platform Development; SiC Schottky Diode 3300V process; SiC MOSFET 3300V manufacturing process; and GaN power semiconductor components combined with IC process manufacturing process technology for providing 6-inch silicon wafer foundry service. It operates in one reportable operating segment. Geographically, it operates in Taiwan, Japan, China, the USA, and others, with the majority of revenue deriving from Taiwan.
56GF Score
Get the complete analysis for ROCO:3707
Operating Income 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:3707 has been successfully added to your 
