Innostar Service (ROCO:7828) Operating Income: NT$256.8 Mil (TTM As of Dec. 2025)


ROCO:7828 Innostar Service Inc ROCO:7828
23 GF Score
Price NT$2,115.00
! 7 Warning Signs
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What is Innostar Service Operating Income?

Innostar Service ROCO:7828 23 Operating Income is NT$256.8 Mil as of Dec. 2025. GuruFocus rates ROCO:7828 with a GF Score™ of 23/100. The stock has 7 warning signs investors should review.

Innostar Service's Operating Income for the three months ended in Dec. 2025 was NT$202.4 Mil. Its Operating Income for the trailing twelve months (TTM) ended in Dec. 2025 was NT$256.8 Mil.

Operating Margin % is calculated as Operating Income divided by its Revenue. Innostar Service's Operating Income for the three months ended in Dec. 2025 was NT$202.4 Mil. Innostar Service's Revenue for the three months ended in Dec. 2025 was NT$394.4 Mil. Therefore, Innostar Service's Operating Margin % for the quarter that ended in Dec. 2025 was 51.31%.

Innostar Service's 5-Year average Growth Rate for Operating Margin % was 0.00% per year.

Operating Income or EBIT is linked to Return on Capital for both regular definition and Joel Greenblatt's definition. Innostar Service's annualized ROC % for the quarter that ended in Dec. 2025 was 97.51%. Innostar Service's annualized ROC (Joel Greenblatt) % for the quarter that ended in Dec. 2025 was 156.47%.

Innostar Service  (ROCO:7828) Operating Income Explanation

1. Operating Income or EBIT is linked to Return on Capital for both regular definition and Joel Greenblatt's definition.

Innostar Service's annualized ROC % for the quarter that ended in Dec. 2025 is calculated as:

ROC % (Q: Dec. 2025 )
=NOPAT/Average Invested Capital
=Operating Income * ( 1 - Tax Rate % )/( (Invested Capital (Q: Sep. 2025 ) + Invested Capital (Q: Dec. 2025 ))/ count )
=809.404 * ( 1 - 15.7% )/( (608.526 + 791.043)/ 2 )
=682.327572/699.7845
=97.51 %

where

Invested Capital(Q: Sep. 2025 )
=Total Assets - Accounts Payable & Accrued Expense - Excess Cash
=Total Assets - Accounts Payable & Accrued Expense - ( Cash, Cash Equivalents, Marketable Securities - max(0, Total Current Liabilities - Total Current Assets+Cash, Cash Equivalents, Marketable Securities))
=1577.982 - 218.247 - ( 797.629 - max(0, 395.218 - 1146.427+797.629))
=608.526

Invested Capital(Q: Dec. 2025 )
=Total Assets - Accounts Payable & Accrued Expense - Excess Cash
=Total Assets - Accounts Payable & Accrued Expense - ( Cash, Cash Equivalents, Marketable Securities - max(0, Total Current Liabilities - Total Current Assets+Cash, Cash Equivalents, Marketable Securities))
=1742.594 - 243.255 - ( 708.296 - max(0, 352.729 - 1267.473+708.296))
=791.043

Note: The Operating Income data used here is four times the quarterly (Dec. 2025) data.

2. Joel Greenblatt's definition of Return on Capital:

Innostar Service's annualized ROC (Joel Greenblatt) % for the quarter that ended in Dec. 2025 is calculated as:

ROC (Joel Greenblatt) %(Q: Dec. 2025 )
=EBIT/Average of (Net fixed Assets + Net Working Capital)
=EBIT/Average of (Property, Plant and Equipment+Net Working Capital)
     Q: Sep. 2025  Q: Dec. 2025
=EBIT/( ( (Property, Plant and Equipment + Net Working Capital) + (Property, Plant and Equipment + Net Working Capital) )/ count )
=843.972/( ( (415.429 + max(-29.643, 0)) + (437.132 + max(226.233, 0)) )/ 2 )
=843.972/( ( 415.429 + 663.365 )/ 2 )
=843.972/539.397
=156.47 %

where Working Capital is:

Working Capital(Q: Sep. 2025 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(126.202 + 205.463 + 16.128) - (218.247 + 0 + 159.189)
=-29.643

Working Capital(Q: Dec. 2025 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(321.46 + 211.002 + 25.68) - (243.255 + 0 + 88.654)
=226.233

When net working capital is negative, 0 is used.

Note: The EBIT data used here is four times the quarterly (Dec. 2025) EBIT data.

3. Operating Income is also linked to Operating Margin %:

Innostar Service'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 )
=202.351/394.369
=51.31 %

* 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.

Innostar Service Operating Income Related Terms

Innostar Service Operating Income Historical Data

* Premium members only.

The historical data trend for Innostar Service'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.

Innostar Service Operating Income Chart

Innostar Service Annual Data
Trend Dec22 Dec23 Dec24 Dec25
Operating Income
6.48 -54.92 150.69 279.24

Innostar Service Quarterly Data
Dec22 Dec23 Sep24 Dec24 Jun25 Sep25 Dec25
Operating Income Get a 7-Day Free Trial -37.83 197.55 0.00 54.47 202.35
ROCO:7828
23GF Score
Innostar Service Inc ROCO:7828
Operating Income is just one metric. See GF Score™, valuation, warning signs, and more.
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Innostar Service Operating Income Calculation

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 Dec. 2025 adds up the quarterly data reported by the company within the most recent 12 months, which was NT$256.8 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.

Frequently Asked Questions Learn more about Operating Income →
What does a Operating Income of NT$256.8 Mil mean?
Innostar Service (ROCO:7828) has a Operating Income of NT$256.8 Mil as of Dec. 2025. Operating Income equals sales less all operating expenses. It is linked to EBIT. View historical data on Innostar Service and its competitors.
Is Innostar Service's Operating Income too high?
Innostar Service's current Operating Income is NT$256.8 Mil. Overall, Innostar Service has a GF Score™ of 23/100, reflecting its overall financial health beyond just this single metric.
How does Innostar Service's Operating Income compare to GEV and ETN?
Innostar Service's Operating Income of NT$256.8 Mil can be compared against companies in the Industrial Products 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 an Industrial Products company?
A good Operating Income depends on the Industrial Products 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 Innostar Service and its competitors. Innostar Service's current Operating Income is NT$256.8 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Innostar Service stock overvalued right now?
Innostar Service (ROCO:7828) has a current Operating Income of NT$256.8 Mil. The current Operating Income is NT$256.8 Mil. Innostar Service's overall GF Score™ is 23/100 with 7 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 Innostar Service (ROCO:7828), the current Operating Income is NT$256.8 Mil 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.

Innostar Service Business Description

Address Da\'angang Road, No. 10, Lane 116, Dajia District, Taichung, TWN, 437002
Innostar Service Inc a total solution provider engaged in the design, development, manufacturing and sales of semiconductor probe card-related machinery and equipment, optoelectronic automation equipment engineering, and contract manufacturing services. The company focuses on the design, development, and sales of products in three core areas: Semiconductor Wafer Level Testing: MEMS Probe Card-Related Automation Equipment; Precision Automation Equipment for the Semiconductor and Optoelectronics Industries; Advanced Packaging: High-Density Copper Pillar Lead Frame and Mass Transfer Technology.
23GF Score

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

NT$2,115.00
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