TAC Co (TSE:4319) Operating Income: 円764 Mil (TTM As of Sep. 2025)

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TSE:4319 TAC Co Ltd TSE:4319
42 GF Score
Price 円347.00
GF Value 円192.17
! 10 Warning Signs
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What is TAC Co Operating Income?

TAC Co TSE:4319 -0.29% 42 Operating Income is 円764 Mil as of Sep. 2025. GuruFocus rates TSE:4319 with a GF Score™ of 42/100 and a GF Value™ of 円192.17. The stock has 10 warning signs investors should review.

TAC Co's Operating Income for the six months ended in Sep. 2025 was 円862 Mil. Its Operating Income for the trailing twelve months (TTM) ended in Sep. 2025 was 円764 Mil.

Warning Sign:

TAC Co Ltd has recorded a loss in operating income at least once over the past 3 years.

Operating Margin % is calculated as Operating Income divided by its Revenue. TAC Co's Operating Income for the six months ended in Sep. 2025 was 円862 Mil. TAC Co's Revenue for the six months ended in Sep. 2025 was 円10,354 Mil. Therefore, TAC Co's Operating Margin % for the quarter that ended in Sep. 2025 was 8.32%.

TAC Co'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. TAC Co's annualized ROC % for the quarter that ended in Sep. 2025 was 6.51%. TAC Co's annualized ROC (Joel Greenblatt) % for the quarter that ended in Sep. 2025 was 35.29%.


TAC Co  (TSE:4319) Operating Income Explanation

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

TAC Co's annualized ROC % for the quarter that ended in Sep. 2025 is calculated as:

ROC % (Q: Sep. 2025 )
=NOPAT/Average Invested Capital
=Operating Income * ( 1 - Tax Rate % )/( (Invested Capital (Q: Mar. 2025 ) + Invested Capital (Q: Sep. 2025 ))/ count )
=1723.752 * ( 1 - 31.87% )/( (20244.061 + 15842.518)/ 2 )
=1174.3922376/18043.2895
=6.51 %

where

Invested Capital(Q: Mar. 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))
=20942.542 - 659.901 - ( 6470.565 - max(0, 11970.478 - 12009.058+6470.565))
=20244.061

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))
=19953.424 - 991.839 - ( 5670.625 - max(0, 8267.677 - 11386.744+5670.625))
=15842.518

Note: The Operating Income data used here is two times the semi-annual (Sep. 2025) data.

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

TAC Co's annualized ROC (Joel Greenblatt) % for the quarter that ended in Sep. 2025 is calculated as:

ROC (Joel Greenblatt) %(Q: Sep. 2025 )
=EBIT/Average of (Net fixed Assets + Net Working Capital)
=EBIT/Average of (Property, Plant and Equipment+Net Working Capital)
     Q: Mar. 2025  Q: Sep. 2025
=EBIT/( ( (Property, Plant and Equipment + Net Working Capital) + (Property, Plant and Equipment + Net Working Capital) )/ count )
=1655.644/( ( (4712.533 + max(-3208.981, 0)) + (4670.317 + max(-2565.219, 0)) )/ 2 )
=1655.644/( ( 4712.533 + 4670.317 )/ 2 )
=1655.644/4691.425
=35.29 %

where Working Capital is:

Working Capital(Q: Mar. 2025 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(3903.582 + 1014.751 + 620.16) - (659.901 + 0 + 8087.573)
=-3208.981

Working Capital(Q: Sep. 2025 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(4495.629 + 727.453 + 479.376) - (991.839 + 0 + 7275.838)
=-2565.219

When net working capital is negative, 0 is used.

Note: The EBIT data used here is two times the semi-annual (Sep. 2025) EBIT data.

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

TAC Co's Operating Margin % for the quarter that ended in Sep. 2025 is calculated as:

Operating Margin %=Operating Income (Q: Sep. 2025 )/Revenue (Q: Sep. 2025 )
=861.876/10353.521
=8.32 %

* 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.


TAC Co Operating Income Related Terms


TAC Co Operating Income Historical Data

* Premium members only.

The historical data trend for TAC Co'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.

TAC Co Operating Income Chart

TAC Co Annual Data
Trend Mar16 Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25
Operating Income
Get a 7-Day Free Trial Premium Member Only Premium Member Only 404.57 413.30 319.04 -307.41 725.94

TAC Co Semi-Annual Data
Mar16 Sep16 Mar17 Sep17 Mar18 Sep18 Mar19 Sep19 Mar20 Sep20 Mar21 Sep21 Mar22 Sep22 Mar23 Sep23 Mar24 Sep24 Mar25 Sep25
Operating Income 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 252.94 -560.35 823.34 -97.40 861.88
TSE:4319
42GF Score
TAC Co Ltd TSE:4319
Operating Income is just one metric. See GF Score™, valuation, warning signs, and more.
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TAC Co 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 Sep. 2025 adds up the semi-annually data reported by the company within the most recent 12 months, which was 円764 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 円764 Mil mean?
TAC Co (TSE:4319) has a Operating Income of 円764 Mil as of Sep. 2025. Operating Income equals sales less all operating expenses. It is linked to EBIT. View historical data on TAC Co and its competitors.
Is TAC Co's Operating Income too high?
TAC Co's current Operating Income is 円764 Mil. Overall, TAC Co has a GF Score™ of 42/100, reflecting its overall financial health beyond just this single metric.
How does TAC Co's Operating Income compare to EDU and TAL?
TAC Co's Operating Income of 円764 Mil can be compared against companies in the Education 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 Education company?
A good Operating Income depends on the Education 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 TAC Co and its competitors. TAC Co's current Operating Income is 円764 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is TAC Co stock overvalued right now?
TAC Co (TSE:4319) has a current Operating Income of 円764 Mil. The stock's GF Value™ is 円192.17, compared to a current price of 円347.00 — trading 80.6% above its estimated fair value. The current Operating Income is 円764 Mil. TAC Co's overall GF Score™ is 42/100 with 10 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 TAC Co (TSE:4319), the current Operating Income is 円764 Mil as of Sep. 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 TAC Co (TSE:4319) Overvalued in 2026?

Based on GuruFocus' analysis, TAC Co stock appears to be overvalued. The current stock price of 円347.00 is trading 80.6% above its estimated GF Value™ of 円192.17.

Key valuation signals for TSE:4319:

  • Operating Income: 円764 Mil
  • GF Value™: 円192.17 vs. price of 円347.00 (80.6% above fair value)
  • GF Score™: 42/100 with 10 warning signs

No single metric tells the full story. See the TSE:4319 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


TAC Co Business Description

Address 3-2-18 Misaki-cho, Tokyo, JPN
TAC Co Ltd is a Japan-based company engages in providing educational services. The company is engaged in the personal education, corporate training, publishing, and manpower businesses. Its personal education business division offers preparatory courses for qualifications for individual students and provides training for corporations.
42GF Score

Get the complete analysis for TSE:4319

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

円347.00
Price
円192.17
GF Value