Diamond Building Products PCL (BKK:DRT) E10: ฿0.67 (As of Mar. 2026)

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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
View Full Analysis

What is Diamond Building Products PCL E10?

Diamond Building Products PCL BKK:DRT 74 E10 is ฿0.67 as of Mar. 2026. 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.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.

Diamond Building Products PCL's adjusted earnings per share data for the three months ended in Mar. 2026 was ฿0.180. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is ฿0.67 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Diamond Building Products PCL's average E10 Growth Rate was 3.10% per year. During the past 3 years, the average E10 Growth Rate was 5.00% per year. During the past 5 years, the average E10 Growth Rate was 6.50% per year. 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 E10 growth rate using E10 data.

During the past 13 years, the highest 3-Year average E10 Growth Rate of Diamond Building Products PCL was 7.70% per year. The lowest was 3.70% per year. And the median was 6.45% per year.

As of today (2026-07-15), Diamond Building Products PCL's current stock price is ฿5.15. Diamond Building Products PCL's E10 for the quarter that ended in Mar. 2026 was ฿0.67. Diamond Building Products PCL's Shiller PE Ratio of today is 7.69.

During the past 13 years, the highest Shiller PE Ratio of Diamond Building Products PCL was 16.73. The lowest was 6.93. And the median was 12.95.


Diamond Building Products PCL  (BKK:DRT) E10 Explanation

If a company grows much fast than inflation, E10 may underestimate the company's earnings power. Shiller PE Ratio can seem to be too high even the actual P/E is low.

For the Shiller P/E, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller P/E is also called PE10.

The Shiller P/E was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.

Diamond Building Products PCL's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=5.15/0.67
=7.69

* 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.

During the past 13 years, the highest Shiller P/E Ratio of Diamond Building Products PCL was 16.73. The lowest was 6.93. And the median was 12.95.


Be Aware

Shiller PE Ratio works better for cyclical companies. It gives you a better idea on the company's real earnings power.


Diamond Building Products PCL E10 Related Terms


Diamond Building Products PCL E10 Historical Data

* Premium members only.

The historical data trend for Diamond Building Products PCL's E10 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.

Diamond Building Products PCL E10 Chart

Diamond Building Products PCL Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.53 0.57 0.60 0.64 0.66

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
E10 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 0.65 0.66 0.66 0.66 0.67

BKK:DRT vs TT, JCI, CARR: E10 Comparison

For the Building Products & Equipment subindustry, Diamond Building Products PCL's Shiller PE Ratio, along with its competitors' market caps and Shiller PE Ratio 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 Shiller PE Ratio vs Construction Industry

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

* The bar in red indicates where Diamond Building Products PCL's Shiller PE Ratio falls into.


BKK:DRT
74GF Score
Diamond Building Products PCL BKK:DRT
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Diamond Building Products PCL E10 Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. When we calculate the today's Shiller P/E ratio of a stock, we use today's price divided by E10.

What is E10? How do we calculate E10?

E10 is the average of the inflation adjusted earnings of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the E10 of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the earnings from 2001 through 2010.

We adjusted the earnings of 2001 earnings data with the total inflation from 2001 through 2010 to the equivalent earnings in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart earned $1 a share in 2001, then the 2001's equivalent earnings in 2010 is $1.4 a share. If Wal-Mart earns $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 earnings in 2010 is $1.35. So on and so forth, you get the equivalent earnings of past 10 years. Then you add them together and divided the sum by 10 to get E10.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

For example, Diamond Building Products PCL's adjusted earnings per share data for the three months ended in Mar. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=0.18/330.2130*330.2130
=0.180

Current CPI (Mar. 2026) = 330.2130.

Diamond Building Products PCL Quarterly Data

per share eps CPI Adj_EPS
201606 0.110 241.018 0.151
201609 0.080 241.428 0.109
201612 0.070 241.432 0.096
201703 0.140 243.801 0.190
201706 0.120 244.955 0.162
201709 0.080 246.819 0.107
201712 0.080 246.524 0.107
201803 0.150 249.554 0.198
201806 0.120 251.989 0.157
201809 0.080 252.439 0.105
201812 0.092 251.233 0.121
201903 0.220 254.202 0.286
201906 0.140 256.143 0.180
201909 0.140 256.759 0.180
201912 0.100 256.974 0.129
202003 0.180 258.115 0.230
202006 0.200 257.797 0.256
202009 0.130 260.280 0.165
202012 0.110 260.474 0.139
202103 0.230 264.877 0.287
202106 0.210 271.696 0.255
202109 0.140 274.310 0.169
202112 0.100 278.802 0.118
202203 0.220 287.504 0.253
202206 0.220 296.311 0.245
202209 0.150 296.808 0.167
202212 0.137 296.797 0.152
202303 0.210 301.836 0.230
202306 0.200 305.109 0.216
202309 0.200 307.789 0.215
202312 0.146 306.746 0.157
202403 0.240 312.332 0.254
202406 0.180 314.175 0.189
202409 0.100 315.301 0.105
202412 0.070 315.605 0.073
202503 0.120 319.799 0.124
202506 0.120 322.561 0.123
202509 0.050 324.800 0.051
202512 0.090 324.054 0.092
202603 0.180 330.213 0.180

Add all the adjusted EPS together and divide 10 will get our e10.

Frequently Asked Questions Learn more about E10 →
What does a E10 of ฿0.67 mean?
Diamond Building Products PCL (BKK:DRT) has a E10 of ฿0.67 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Diamond Building Products PCL and its competitors.
Is Diamond Building Products PCL's E10 too high?
Diamond Building Products PCL's current E10 is ฿0.67. 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 E10 compare to TT and JCI?
Diamond Building Products PCL's E10 of ฿0.67 can be compared against companies in the Construction industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good E10 for a Construction company?
A good E10 depends on the Construction industry context. However, E10 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 E10 mean?
A high E10 can signal that a stock is expensive relative to its fundamentals. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Diamond Building Products PCL and its competitors. Diamond Building Products PCL's current E10 is ฿0.67. 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 E10 is ฿0.67. 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 E10 calculated?
E10 is calculated from a company's financial statements. For Diamond Building Products PCL (BKK:DRT), the current E10 is ฿0.67 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:

  • E10: ฿0.67
  • GF Value™: ฿6.49 vs. price of ฿5.15 (20.6% below fair value)
  • GF Score™: 74/100 with 7 warning signs

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

E10 is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

฿5.15
Price
฿6.49
GF Value