Writeup Co (TSE:6580) Operating Income: 円470 Mil (TTM As of Mar. 2026)

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TSE:6580 Writeup Co Ltd TSE:6580
67 GF Score
Price 円817.00
GF Value 円1,503.94
Valuation Significantly Undervalued
! 3 Warning Signs
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What is Writeup Co Operating Income?

Writeup Co TSE:6580 +0.12% 67 Operating Income is 円470 Mil as of Mar. 2026. GuruFocus rates TSE:6580 with a GF Score™ of 67/100 and a GF Value™ of 円1,503.94 (Significantly Undervalued). The stock has 3 warning signs investors should review.

Writeup Co's Operating Income for the six months ended in Mar. 2026 was 円158 Mil. Its Operating Income for the trailing twelve months (TTM) ended in Mar. 2026 was 円470 Mil.

Operating Margin % is calculated as Operating Income divided by its Revenue. Writeup Co's Operating Income for the six months ended in Mar. 2026 was 円158 Mil. Writeup Co's Revenue for the six months ended in Mar. 2026 was 円1,494 Mil. Therefore, Writeup Co's Operating Margin % for the quarter that ended in Mar. 2026 was 10.59%.

Warning Sign:

Writeup Co Ltd operating margin has been in a 5-year decline. The average rate of decline per year is -12.7%.

Writeup Co's 5-Year average Growth Rate for Operating Margin % was -12.70% per year.

Operating Income or EBIT is linked to Return on Capital for both regular definition and Joel Greenblatt's definition. Writeup Co's annualized ROC % for the quarter that ended in Mar. 2026 was 16.50%. Writeup Co's annualized ROC (Joel Greenblatt) % for the quarter that ended in Mar. 2026 was 149.35%.


Writeup Co  (TSE:6580) Operating Income Explanation

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

Writeup Co's annualized ROC % for the quarter that ended in Mar. 2026 is calculated as:

ROC % (Q: Mar. 2026 )
=NOPAT/Average Invested Capital
=Operating Income * ( 1 - Tax Rate % )/( (Invested Capital (Q: Sep. 2025 ) + Invested Capital (Q: Mar. 2026 ))/ count )
=316.468 * ( 1 - 36.78% )/( (1321.426 + 1104.338)/ 2 )
=200.0710696/1212.882
=16.50 %

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))
=4105.141 - 152.269 - ( 2631.446 - max(0, 870.657 - 3646.365+2631.446))
=1321.426

Invested Capital(Q: Mar. 2026 )
=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))
=3787.459 - 101.367 - ( 2581.754 - max(0, 494.625 - 3300.107+2581.754))
=1104.338

Note: The Operating Income data used here is two times the semi-annual (Mar. 2026) data.

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

Writeup Co's annualized ROC (Joel Greenblatt) % for the quarter that ended in Mar. 2026 is calculated as:

ROC (Joel Greenblatt) %(Q: Mar. 2026 )
=EBIT/Average of (Net fixed Assets + Net Working Capital)
=EBIT/Average of (Property, Plant and Equipment+Net Working Capital)
     Q: Sep. 2025  Q: Mar. 2026
=EBIT/( ( (Property, Plant and Equipment + Net Working Capital) + (Property, Plant and Equipment + Net Working Capital) )/ count )
=316.468/( ( (27.127 + max(144.262, 0)) + (26.944 + max(225.463, 0)) )/ 2 )
=316.468/( ( 171.389 + 252.407 )/ 2 )
=316.468/211.898
=149.35 %

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)
=(951.764 + 4.435 + 58.72) - (152.269 + 0 + 718.388)
=144.262

Working Capital(Q: Mar. 2026 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(646.92 + 1.548 + 69.885) - (101.367 + 0 + 391.523)
=225.463

When net working capital is negative, 0 is used.

Note: The EBIT data used here is two times the semi-annual (Mar. 2026) EBIT data.

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

Writeup Co's Operating Margin % for the quarter that ended in Mar. 2026 is calculated as:

Operating Margin %=Operating Income (Q: Mar. 2026 )/Revenue (Q: Mar. 2026 )
=158.234/1494.473
=10.59 %

* 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.


Writeup Co Operating Income Related Terms


Writeup Co Operating Income Historical Data

* Premium members only.

The historical data trend for Writeup 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.

Writeup Co Operating Income Chart

Writeup Co Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Operating Income
Get a 7-Day Free Trial Premium Member Only Premium Member Only 840.87 143.50 319.75 720.72 469.83

Writeup Co Semi-Annual Data
Mar16 Mar17 Mar18 Sep18 Mar19 Sep19 Mar20 Sep20 Mar21 Sep21 Mar22 Sep22 Mar23 Sep23 Mar24 Sep24 Mar25 Sep25 Mar26
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 311.17 111.29 609.43 311.60 158.23
TSE:6580
67GF Score
Writeup Co Ltd TSE:6580
Operating Income is just one metric. See GF Score™, valuation, warning signs, and more.
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Writeup 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 Mar. 2026 adds up the semi-annually data reported by the company within the most recent 12 months, which was 円470 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470 Mil mean?
Writeup Co (TSE:6580) has a Operating Income of 円470 Mil as of Mar. 2026. Operating Income equals sales less all operating expenses. It is linked to EBIT. View historical data on Writeup Co and its competitors.
Is Writeup Co's Operating Income too high?
Writeup Co's current Operating Income is 円470 Mil. Overall, Writeup Co has a GF Score™ of 67/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Writeup Co's Operating Income compare to CTAS and CPRT?
Writeup Co's Operating Income of 円470 Mil can be compared against companies in the Business Services 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 Business Services company?
A good Operating Income depends on the Business Services 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 Writeup Co and its competitors. Writeup Co's current Operating Income is 円470 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Writeup Co stock overvalued right now?
Based on GuruFocus' analysis, Writeup Co (TSE:6580) is currently considered Significantly Undervalued. The stock's GF Value™ is 円1,503.94, compared to a current price of 円817.00 — trading 45.7% below its estimated fair value. The current Operating Income is 円470 Mil. Writeup Co's overall GF Score™ is 67/100 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 Writeup Co (TSE:6580), the current Operating Income is 円470 Mil as of Mar. 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 Writeup Co (TSE:6580) Overvalued in 2026?

Based on GuruFocus' analysis, Writeup Co stock appears to be undervalued. The current stock price of 円817.00 is trading 45.7% below its estimated GF Value™ of 円1,503.94. GuruFocus considers Writeup Co to be Significantly Undervalued.

Key valuation signals for TSE:6580:

  • Operating Income: 円470 Mil
  • GF Value™: 円1,503.94 vs. price of 円817.00 (45.7% below fair value)
  • GF Score™: 67/100 with 3 warning signs

No single metric tells the full story. See the TSE:6580 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Writeup Co Business Description

Address 2-15-1 Shibuya, Shibuya-ku, Tokyo, JPN, 150-0002
Writeup Co Ltd provides support services. The company's offers services such as J engine management support service, J value up employee training service, mail magazine editorial service, content writing service, and other related services.
67GF Score

Get the complete analysis for TSE:6580

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

円817.00
Price
円1,503.94
GF Value