Nankai Tatsumura Construction Co (TSE:1850) Operating Margin %: 7.27% (As of Mar. 2026) — 34% Above Median


TSE:1850 Nankai Tatsumura Construction Co Ltd TSE:1850
67 GF Score
Price 円431.00
GF Value 円346.95
Valuation Modestly Overvalued
! 1 Warning Sign
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What is Nankai Tatsumura Construction Co Operating Margin %?

Nankai Tatsumura Construction Co TSE:1850 +1.65% 67 Operating Margin % is 7.27% as of Mar. 2026, which is 34% above its 10-year median of 5.42. GuruFocus rates TSE:1850 with a GF Score™ of 67/100 and a GF Value™ of 円346.95 (Modestly Overvalued). The stock has 1 warning sign investors should review. Among 1,762 Construction companies, Nankai Tatsumura Construction Co ranks better than 51.7% on this metric.

Operating Margin % is calculated as Operating Income divided by its Revenue. Nankai Tatsumura Construction Co's Operating Income for the six months ended in Mar. 2026 was 円1,699 Mil. Nankai Tatsumura Construction Co's Revenue for the six months ended in Mar. 2026 was 円23,360 Mil. Therefore, Nankai Tatsumura Construction Co's Operating Margin % for the quarter that ended in Mar. 2026 was 7.27%.

Good Sign:

Nankai Tatsumura Construction Co Ltd operating margin is expanding. Margin expansion is usually a good sign.

The historical rank and industry rank for Nankai Tatsumura Construction Co's Operating Margin % or its related term are showing as below:

TSE:1850' s Operating Margin % Range Over the Past 10 Years
Min: 3.82   Med: 5.42   Max: 6.58
Current: 6.21


TSE:1850's Operating Margin % is ranked better than
51.7% of 1762 companies
in the Construction industry
Industry Median: 5.89 vs TSE:1850: 6.21

Nankai Tatsumura Construction Co's 5-Year Average Operating Margin % Growth Rate was 5.50% per year.

Nankai Tatsumura Construction Co's Operating Income for the six months ended in Mar. 2026 was 円1,699 Mil. Its Operating Income for the trailing twelve months (TTM) ended in Mar. 2026 was 円2,842 Mil.


Nankai Tatsumura Construction Co  (TSE:1850) Operating Margin % Explanation

Just like Gross Margin %, it is important to see a company maintains its operating margin over time. Among the same industry, a company with higher operating margin is more efficient in its operation. It is also more stable during industry slowdown or recessions. Peter Lynch prefers those with higher margins than those with lower margins.


Be Aware

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 (Diluted) 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.


Nankai Tatsumura Construction Co Operating Margin % Related Terms


Nankai Tatsumura Construction Co Operating Margin % Historical Data

* Premium members only.

The historical data trend for Nankai Tatsumura Construction Co's Operating Margin % 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.

Nankai Tatsumura Construction Co Operating Margin % Chart

Nankai Tatsumura Construction Co Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Operating Margin %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 5.19 4.35 3.86 4.50 6.21

Nankai Tatsumura Construction Co Semi-Annual Data
Sep16 Mar17 Sep17 Mar18 Sep18 Mar19 Sep19 Mar20 Sep20 Mar21 Sep21 Mar22 Sep22 Mar23 Sep23 Mar24 Sep24 Mar25 Sep25 Mar26
Operating Margin % 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 6.89 2.86 5.76 5.09 7.27

TSE:1850 vs PWR, FIX, EME: Operating Margin % Comparison

For the Engineering & Construction subindustry, Nankai Tatsumura Construction Co's Operating Margin %, along with its competitors' market caps and Operating Margin % data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


Nankai Tatsumura Construction Co Operating Margin % vs Construction Industry

For the Construction industry and Industrials sector, Nankai Tatsumura Construction Co's Operating Margin % distribution charts can be found below:

* The bar in red indicates where Nankai Tatsumura Construction Co's Operating Margin % falls into.


TSE:1850
67GF Score
Nankai Tatsumura Construction Co Ltd TSE:1850
Operating Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
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Nankai Tatsumura Construction Co Operating Margin % Calculation

Operating Margin % - also known as operating income margin, operating profit margin and return on sales (ROS) - is the ratio of Operating Income divided by net sales or Revenue, usually presented in percent.

Nankai Tatsumura Construction Co's Operating Margin % for the fiscal year that ended in Mar. 2026 is calculated as

Operating Margin %=Operating Income (A: Mar. 2026 ) / Revenue (A: Mar. 2026 )
=2842 / 45796
=6.21 %

Nankai Tatsumura Construction 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 )
=1699 / 23360
=7.27 %

* 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 Margin % →
What does a Operating Margin % of 7.27% mean?
Nankai Tatsumura Construction Co (TSE:1850) has a Operating Margin % of 7.27% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on Nankai Tatsumura Construction Co and its competitors. This is 34% above median its historical median of 5.42. Over the past decade, Nankai Tatsumura Construction Co's Operating Margin % has ranged from 3.82 to 6.58. According to the industry distribution chart, Nankai Tatsumura Construction Co ranks #851 out of 1762 companies in the Construction industry, placing it in the top 48.3%.
Is Nankai Tatsumura Construction Co's Operating Margin % too high?
Nankai Tatsumura Construction Co's current Operating Margin % of 7.27% is 34% above median its 10-year median of 5.42. Over the past 10 years, this metric has ranged from a low of 3.82 to a high of 6.58. The Construction industry median Operating Margin % is 5.89. Nankai Tatsumura Construction Co's value of 7.27% is 23.4% above this industry median. Based on the distribution chart, Nankai Tatsumura Construction Co ranks #851 out of 1762 companies in the Construction industry, which is above the industry midpoint. Overall, Nankai Tatsumura Construction Co has a GF Score™ of 67/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Nankai Tatsumura Construction Co's Operating Margin % compare to PWR and FIX?
According to the Construction industry distribution chart, Nankai Tatsumura Construction Co ranks #851 out of 1762 companies for Operating Margin %. This puts Nankai Tatsumura Construction Co in the upper half of its industry. The industry median Operating Margin % is 5.89. Nankai Tatsumura Construction Co's value of 7.27% is 23.4% above this benchmark. Historically, Nankai Tatsumura Construction Co's own Operating Margin % has ranged from 3.82 to 6.58 over the past decade. While the company's 10-year median is 5.42 vs. the industry median of 5.89, Nankai Tatsumura Construction Co has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Operating Margin % for a Construction company?
The median Operating Margin % among Construction companies is 5.89, based on 1,762 companies in the industry. Companies in the top quartile (top 25%) have a Operating Margin % significantly above this median, while those in the bottom quartile fall well below. However, Operating Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Nankai Tatsumura Construction Co's current Operating Margin % of 7.27% is 23.4% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Operating Margin % mean?
A high Operating Margin % can signal that a stock is expensive relative to its fundamentals. Operating margin is the ratio of total operating income to net sales. View historical data on Nankai Tatsumura Construction Co and its competitors. For the Construction industry, the median Operating Margin % is 5.89 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Nankai Tatsumura Construction Co's current Operating Margin % is 7.27%, which is 34% above median its own 10-year median of 5.42. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Nankai Tatsumura Construction Co stock overvalued right now?
Based on GuruFocus' analysis, Nankai Tatsumura Construction Co (TSE:1850) is currently considered Modestly Overvalued. The stock's GF Value™ is 円346.95, compared to a current price of 円431.00 — trading 24.2% above its estimated fair value. The current Operating Margin % is 7.27%, which is 34% above median its 10-year median of 5.42 and 23.4% above the Construction industry median of 5.89. Nankai Tatsumura Construction Co's overall GF Score™ is 67/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Operating Margin % calculated?
Operating Margin % is calculated from a company's financial statements. For Nankai Tatsumura Construction Co (TSE:1850), the current Operating Margin % is 7.27% 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 Nankai Tatsumura Construction Co (TSE:1850) Overvalued in 2026?

Based on GuruFocus' analysis, Nankai Tatsumura Construction Co stock appears to be overvalued. The current stock price of 円431.00 is trading 24.2% above its estimated GF Value™ of 円346.95. GuruFocus considers Nankai Tatsumura Construction Co to be Modestly Overvalued.

Key valuation signals for TSE:1850:

  • Operating Margin %: 7.27% (34% above median its 10-year median of 5.42)
  • GF Value™: 円346.95 vs. price of 円431.00 (24.2% above fair value)
  • GF Score™: 67/100 with 1 warning sign
  • Industry Position: 23.4% above the Construction median (#851 of 1762)

No single metric tells the full story. See the TSE:1850 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Nankai Tatsumura Construction Co Business Description

Address 3 - chome 5 - 19, Naniwa-ku Nanba Naka, Nanhai Nanba Building, Osaka, JPN, 556-0011
Nankai Tatsumura Construction Co Ltd is engaged in general construction like civil, construction, pipe, electrical, and telecommunications construction, design industry, buying and selling real estate owned as well as other general construction work.
67GF Score

Get the complete analysis for TSE:1850

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

円431.00
Price
円346.95
GF Value