Diamond Building Products PCL (BKK:DRT) Interest Coverage: 31.74 (As of Mar. 2026) — 58% Below Median

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BKK:DRT Diamond Building Products PCL BKK:DRT
74 GF Score
Price ฿5.15
GF Value ฿6.49
Valuation Modestly Undervalued
! 7 Warning Signs
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What is Diamond Building Products PCL Interest Coverage?

Diamond Building Products PCL BKK:DRT 74 Interest Coverage is 31.74 as of Mar. 2026, which is 58% below its 10-year median of 75.56. GuruFocus rates BKK:DRT with a GF Score™ of 74/100 and a GF Value™ of ฿6.49 (Modestly Undervalued). The stock has 7 warning signs investors should review. Among 1,360 Construction companies, Diamond Building Products PCL ranks better than 68.75% 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. Diamond Building Products PCL's Operating Income for the three months ended in Mar. 2026 was ฿175 Mil. Diamond Building Products PCL's Interest Expense for the three months ended in Mar. 2026 was ฿-6 Mil. Diamond Building Products PCL's interest coverage for the quarter that ended in Mar. 2026 was 31.74. The higher the ratio, the stronger the company's financial strength is.

The historical rank and industry rank for Diamond Building Products PCL's Interest Coverage or its related term are showing as below:

BKK:DRT' s Interest Coverage Range Over the Past 10 Years
Min: 21.31   Med: 75.56   Max: 104.64
Current: 21.31


BKK:DRT's Interest Coverage is ranked better than
68.75% of 1360 companies
in the Construction industry
Industry Median: 7.865 vs BKK:DRT: 21.31

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


Diamond Building Products PCL  (BKK:DRT) 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 .


Diamond Building Products PCL Interest Coverage Related Terms


Diamond Building Products PCL Interest Coverage Historical Data

* Premium members only.

The historical data trend for Diamond Building Products PCL'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.

Diamond Building Products PCL Interest Coverage Chart

Diamond Building Products PCL Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Interest Coverage
Get a 7-Day Free Trial Premium Member Only Premium Member Only 72.92 104.64 80.20 78.19 21.92

Diamond Building Products PCL Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 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 44.41 36.22 12.56 10.95 31.74

BKK:DRT vs TT, JCI, CARR: Interest Coverage Comparison

For the Building Products & Equipment subindustry, Diamond Building Products PCL'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.


Diamond Building Products PCL Interest Coverage vs Construction Industry

For the Construction industry and Industrials sector, Diamond Building Products PCL's Interest Coverage distribution charts can be found below:

* The bar in red indicates where Diamond Building Products PCL's Interest Coverage falls into.


BKK:DRT
74GF Score
Diamond Building Products PCL BKK:DRT
Interest Coverage is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Diamond Building Products PCL 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.

Diamond Building Products PCL's Interest Coverage for the fiscal year that ended in Dec. 2025 is calculated as

Here, for the fiscal year that ended in Dec. 2025, Diamond Building Products PCL's Interest Expense was ฿-17 Mil. Its Operating Income was ฿376 Mil. And its Long-Term Debt & Capital Lease Obligation was ฿370 Mil.

Interest Coverage=-1* Operating Income (A: Dec. 2025 )/Interest Expense (A: Dec. 2025 )
=-1*376.172/-17.159
=21.92

Diamond Building Products PCL's Interest Coverage for the quarter that ended in Mar. 2026 is calculated as

Here, for the three months ended in Mar. 2026, Diamond Building Products PCL's Interest Expense was ฿-6 Mil. Its Operating Income was ฿175 Mil. And its Long-Term Debt & Capital Lease Obligation was ฿295 Mil.

Interest Coverage=-1* Operating Income (Q: Mar. 2026 )/Interest Expense (Q: Mar. 2026 )
=-1*175.313/-5.524
=31.74

* 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 31.74 mean?
Diamond Building Products PCL (BKK:DRT) has a Interest Coverage of 31.74 as of Mar. 2026. Interest Coverage measures a company's capability to pay interest expenses on its debt. View historical data on Diamond Building Products PCL and its competitors. This is 58% below median its historical median of 75.56. Over the past decade, Diamond Building Products PCL's Interest Coverage has ranged from 21.31 to 104.64. According to the industry distribution chart, Diamond Building Products PCL ranks #425 out of 1360 companies in the Construction industry, placing it in the top 31.2%.
Is Diamond Building Products PCL's Interest Coverage too high?
Diamond Building Products PCL's current Interest Coverage of 31.74 is 58% below median its 10-year median of 75.56. Over the past 10 years, this metric has ranged from a low of 21.31 to a high of 104.64. The Construction industry median Interest Coverage is 7.87. Diamond Building Products PCL's value of 31.74 is 303.6% above this industry median. Based on the distribution chart, Diamond Building Products PCL ranks #425 out of 1360 companies in the Construction industry, which is above the industry midpoint. Overall, Diamond Building Products PCL has a GF Score™ of 74/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Diamond Building Products PCL's Interest Coverage compare to TT and JCI?
According to the Construction industry distribution chart, Diamond Building Products PCL ranks #425 out of 1360 companies for Interest Coverage. This puts Diamond Building Products PCL in the upper half of its industry. The industry median Interest Coverage is 7.87. Diamond Building Products PCL's value of 31.74 is 303.6% above this benchmark. Historically, Diamond Building Products PCL's own Interest Coverage has ranged from 21.31 to 104.64 over the past decade. While the company's 10-year median is 75.56 vs. the industry median of 7.87, Diamond Building Products PCL 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 7.87, based on 1,360 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. Diamond Building Products PCL's current Interest Coverage of 31.74 is 303.6% 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 Diamond Building Products PCL and its competitors. For the Construction industry, the median Interest Coverage is 7.87 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Diamond Building Products PCL's current Interest Coverage is 31.74, which is 58% below median its own 10-year median of 75.56. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Diamond Building Products PCL stock overvalued right now?
Based on GuruFocus' analysis, Diamond Building Products PCL (BKK:DRT) is currently considered Modestly Undervalued. The stock's GF Value™ is ฿6.49, compared to a current price of ฿5.15 — trading 20.6% below its estimated fair value. The current Interest Coverage is 31.74, which is 58% below median its 10-year median of 75.56 and 303.6% above the Construction industry median of 7.87. Diamond Building Products PCL's overall GF Score™ is 74/100 with 7 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 Diamond Building Products PCL (BKK:DRT), the current Interest Coverage is 31.74 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 Diamond Building Products PCL (BKK:DRT) Overvalued in 2026?

Based on GuruFocus' analysis, Diamond Building Products PCL stock appears to be undervalued. The current stock price of ฿5.15 is trading 20.6% below its estimated GF Value™ of ฿6.49. GuruFocus considers Diamond Building Products PCL to be Modestly Undervalued.

Key valuation signals for BKK:DRT:

  • Interest Coverage: 31.74 (58% below median its 10-year median of 75.56)
  • GF Value™: ฿6.49 vs. price of ฿5.15 (20.6% below fair value)
  • GF Score™: 74/100 with 7 warning signs
  • Industry Position: 303.6% above the Construction median (#425 of 1360)

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


Diamond Building Products PCL Business Description

Address 69 - 70 Moo 1, Mittraphap Road Kilometer 115, Thambol Talingchan, Amphur Muang, Saraburi, THA, 18000
Diamond Building Products PCL is a manufacturer and distributor of roof tiles, artificial wood, and autoclaved aerated concrete. Its products and services include Roofing Solutions, Decorative Materials Solutions, Lightweight Concrete Solutions, Lightweight Materials Solutions, and Diamond Modular. Geographically, the Company operates throughout Thailand and overseas, generating the majority of its revenue from Thailand. The Company generates the majority of its revenue from the sale of products.
74GF Score

Get the complete analysis for BKK:DRT

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

฿5.15
Price
฿6.49
GF Value