Nac Co (TSE:9788) Interest Coverage: 50.21 (As of Mar. 2026) — 51% Above Median

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
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.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
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.

TSE:9788 Nac Co Ltd TSE:9788
69 GF Score
Price 円533.00
GF Value 円588.40
Valuation Fairly Valued
! 3 Warning Signs
View Full Analysis

What is Nac Co Interest Coverage?

Nac Co TSE:9788 +0.57% 69 Interest Coverage is 50.21 as of Mar. 2026, which is 51% above its 10-year median of 33.22. GuruFocus rates TSE:9788 with a GF Score™ of 69/100 and a GF Value™ of 円588.40 (Fairly Valued). The stock has 3 warning signs investors should review. Among 1,358 Construction companies, Nac Co ranks better than 74.74% on this metric.

Interest Coverage is a ratio that determines how easily a company can pay interest expenses on outstanding debt. It is calculated by dividing a company's Operating Income by its Interest Expense. Nac Co's Operating Income for the three months ended in Mar. 2026 was 円1,205 Mil. Nac Co's Interest Expense for the three months ended in Mar. 2026 was 円-24 Mil. Nac Co's interest coverage for the quarter that ended in Mar. 2026 was 50.21. The higher the ratio, the stronger the company's financial strength is.

The historical rank and industry rank for Nac Co's Interest Coverage or its related term are showing as below:

TSE:9788' s Interest Coverage Range Over the Past 10 Years
Min: 6.86   Med: 33.22   Max: 63.47
Current: 30.7


TSE:9788's Interest Coverage is ranked better than
74.74% of 1358 companies
in the Construction industry
Industry Median: 7.94 vs TSE:9788: 30.70

Note: If both Interest Expense and Interest Income are empty, while Net Interest Income is negative, then use Net Interest Income as Interest Expense.


Nac Co  (TSE:9788) Interest Coverage Explanation

Ben Graham requires that a company has a minimum interest coverage of 5 with the companies he invested. If the interest coverage is less than 2, the company is burdened by debt. Any business slow or recession may drag the company into a situation where it cannot pay the interest on its debt.

Interest Coverage is an important factor when GuruFocus ranks a company's overage Financial Strength .


Nac Co Interest Coverage Related Terms


Nac Co Interest Coverage Historical Data

* Premium members only.

The historical data trend for Nac Co's Interest Coverage 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.

Note: For Interest Coverage, "No debt" indicates no long-term debt. An indication of "No Debt" does not necessarily mean that the company has no long-term debt obligations; it could be due to missing data in the quarterly or annual report. Use caution when interpreting this information.

Nac Co Interest Coverage Chart

Nac Co Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Interest Coverage
Get a 7-Day Free Trial Premium Member Only Premium Member Only 43.89 63.47 53.53 45.62 30.70

Nac Co Quarterly Data
Dec20 Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Sep24 Mar25 Jun25 Sep25 Dec25 Mar26
Interest Coverage 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 N/A 0.00 27.12 37.52 50.21

TSE:9788 vs PWR, FIX, EME: Interest Coverage Comparison

For the Engineering & Construction subindustry, Nac Co's Interest Coverage, along with its competitors' market caps and Interest Coverage 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.


Nac Co Interest Coverage vs Construction Industry

For the Construction industry and Industrials sector, Nac Co's Interest Coverage distribution charts can be found below:

* The bar in red indicates where Nac Co's Interest Coverage falls into.


TSE:9788
69GF Score
Nac Co Ltd TSE:9788
Interest Coverage is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Nac Co Interest Coverage Calculation

Interest Coverage is a ratio that determines how easily a company can pay interest expenses on outstanding debt. It is calculated by dividing a company's Operating Income (EBIT) by its Interest Expense:

If Interest Expense is negative and Operating Income is positive, then

Interest Coverage=-1* Operating Income /Interest Expense

Else if Interest Expense is negative and Operating Income is negative, then

The company did not have earnings to cover the interest expense.

Else if Interest Expense is 0 and Long-Term Debt & Capital Lease Obligation is 0, then

The company had no debt (1).


Note: If both Interest Expense and Interest Income are empty, while Net Interest Income is negative, then use Net Interest Income as Interest Expense.

Nac Co's Interest Coverage for the fiscal year that ended in Mar. 2026 is calculated as

Here, for the fiscal year that ended in Mar. 2026, Nac Co's Interest Expense was 円-81 Mil. Its Operating Income was 円2,487 Mil. And its Long-Term Debt & Capital Lease Obligation was 円2,686 Mil.

Interest Coverage=-1* Operating Income (A: Mar. 2026 )/Interest Expense (A: Mar. 2026 )
=-1*2487/-81
=30.70

Nac Co's Interest Coverage for the quarter that ended in Mar. 2026 is calculated as

Here, for the three months ended in Mar. 2026, Nac Co's Interest Expense was 円-24 Mil. Its Operating Income was 円1,205 Mil. And its Long-Term Debt & Capital Lease Obligation was 円2,686 Mil.

Interest Coverage=-1* Operating Income (Q: Mar. 2026 )/Interest Expense (Q: Mar. 2026 )
=-1*1205/-24
=50.21

* 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.

The higher the ratio, the stronger the company's Financial Strength is.

Frequently Asked Questions Learn more about Interest Coverage →
What does a Interest Coverage of 50.21 mean?
Nac Co (TSE:9788) has a Interest Coverage of 50.21 as of Mar. 2026. Interest Coverage measures a company's capability to pay interest expenses on its debt. View historical data on Nac Co and its competitors. This is 51% above median its historical median of 33.22. Over the past decade, Nac Co's Interest Coverage has ranged from 6.86 to 63.47. According to the industry distribution chart, Nac Co ranks #343 out of 1358 companies in the Construction industry, placing it in the top 25.3%.
Is Nac Co's Interest Coverage too high?
Nac Co's current Interest Coverage of 50.21 is 51% above median its 10-year median of 33.22. Over the past 10 years, this metric has ranged from a low of 6.86 to a high of 63.47. The Construction industry median Interest Coverage is 7.94. Nac Co's value of 50.21 is 532.4% above this industry median. Based on the distribution chart, Nac Co ranks #343 out of 1358 companies in the Construction industry, which is above the industry midpoint. Overall, Nac Co has a GF Score™ of 69/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Nac Co's Interest Coverage compare to PWR and FIX?
According to the Construction industry distribution chart, Nac Co ranks #343 out of 1358 companies for Interest Coverage. This puts Nac Co in the upper half of its industry. The industry median Interest Coverage is 7.94. Nac Co's value of 50.21 is 532.4% above this benchmark. Historically, Nac Co's own Interest Coverage has ranged from 6.86 to 63.47 over the past decade. While the company's 10-year median is 33.22 vs. the industry median of 7.94, Nac 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 Interest Coverage for a Construction company?
The median Interest Coverage among Construction companies is 7.94, based on 1,358 companies in the industry. Companies in the top quartile (top 25%) have a Interest Coverage significantly above this median, while those in the bottom quartile fall well below. However, Interest Coverage should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Nac Co's current Interest Coverage of 50.21 is 532.4% 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 Interest Coverage mean?
A high Interest Coverage can signal that a stock is expensive relative to its fundamentals. Interest Coverage measures a company's capability to pay interest expenses on its debt. View historical data on Nac Co and its competitors. For the Construction industry, the median Interest Coverage is 7.94 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Nac Co's current Interest Coverage is 50.21, which is 51% above median its own 10-year median of 33.22. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Nac Co stock overvalued right now?
Based on GuruFocus' analysis, Nac Co (TSE:9788) is currently considered Fairly Valued. The stock's GF Value™ is 円588.40, compared to a current price of 円533.00 — trading 9.4% below its estimated fair value. The current Interest Coverage is 50.21, which is 51% above median its 10-year median of 33.22 and 532.4% above the Construction industry median of 7.94. Nac Co's overall GF Score™ is 69/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Interest Coverage calculated?
Interest Coverage is calculated from a company's financial statements. For Nac Co (TSE:9788), the current Interest Coverage is 50.21 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 Nac Co (TSE:9788) Overvalued in 2026?

Based on GuruFocus' analysis, Nac Co stock appears to be undervalued. The current stock price of 円533.00 is trading 9.4% below its estimated GF Value™ of 円588.40. GuruFocus considers Nac Co to be Fairly Valued.

Key valuation signals for TSE:9788:

  • Interest Coverage: 50.21 (51% above median its 10-year median of 33.22)
  • GF Value™: 円588.40 vs. price of 円533.00 (9.4% below fair value)
  • GF Score™: 69/100 with 3 warning signs
  • Industry Position: 532.4% above the Construction median (#343 of 1358)

No single metric tells the full story. See the TSE:9788 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Nac Co Business Description

Address 1-25-1 Nishi Shinjuku, Shinjuku Center Building 42, Shinjuku-ku, Tokyo, JPN, 163-0675
Nac Co Ltd engages in the operation of housing maintenance and construction business in Japan. The company's operating division include Production and sales of home delivery water, Rental business, Construction consulting business, Housing business, and Beauty and health business.
69GF Score

Get the complete analysis for TSE:9788

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

円533.00
Price
円588.40
GF Value