Siam Technic Concrete PCL (BKK:STECH) Earnings Yield (Joel Greenblatt) %: 13.18% (As of Dec. 2025) — 67% 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.

BKK:STECH Siam Technic Concrete PCL BKK:STECH
80 GF Score
Price ฿1.20
GF Value ฿1.38
Valuation Modestly Undervalued
! 6 Warning Signs
View Full Analysis

What is Siam Technic Concrete PCL Earnings Yield (Joel Greenblatt) %?

Siam Technic Concrete PCL BKK:STECH +0.84% 80 Earnings Yield (Joel Greenblatt) % is 13.18% as of Dec. 2025, which is 67% above its 10-year median of 7.90. GuruFocus rates BKK:STECH with a GF Score™ of 80/100 and a GF Value™ of ฿1.38 (Modestly Undervalued). The stock has 6 warning signs investors should review. Among 417 Building Materials companies, Siam Technic Concrete PCL ranks better than 80.1% on this metric.

Siam Technic Concrete PCL's Enterprise Value for the quarter that ended in Dec. 2025 was ฿1,668 Mil. Siam Technic Concrete PCL's EBIT for the trailing twelve months (TTM) ended in Dec. 2025 was ฿220 Mil. Siam Technic Concrete PCL's Earnings Yield (Joel Greenblatt) for the quarter that ended in Dec. 2025 was 13.18%.

The historical rank and industry rank for Siam Technic Concrete PCL's Earnings Yield (Joel Greenblatt) % or its related term are showing as below:

BKK:STECH' s Earnings Yield (Joel Greenblatt) % Range Over the Past 10 Years
Min: 4.77   Med: 7.9   Max: 15.13
Current: 12.02

During the past 7 years, the highest Earnings Yield (Joel Greenblatt) of Siam Technic Concrete PCL was 15.13%. The lowest was 4.77%. And the median was 7.90%.

BKK:STECH's Earnings Yield (Joel Greenblatt) % is ranked better than
80.1% of 417 companies
in the Building Materials industry
Industry Median: 5.34 vs BKK:STECH: 12.02

Joel Greenblatt's definition of earnings yield has the same problems the regular earnings yield does. It does not consider the growth of the company. It only looks at one-year's business operation. For cyclical companies, the earnings yield is usually highest at the peak of the business cycle. But these earnings are rarely sustainable.

A better indicator of the attractiveness of an investment which takes growth into account is the Forward Rate of Return (Yacktman) %. Siam Technic Concrete PCL's Forward Rate of Return (Yacktman) % for the quarter that ended in Dec. 2025 was 3.53%. The Forward Rate of Return uses the normalized Free Cash Flow of the past five years, and considers growth. The forward rate of return can be thought of as the return that investors buying the stock today can expect from it in the future.


Siam Technic Concrete PCL  (BKK:STECH) Earnings Yield (Joel Greenblatt) % Explanation

Joel Greenblatt defines the earnings yield using the above equation because it more accurately reflects the company's profitability relative to its stock price. Items like interest payment and tax etc. are not directly related to the company's operational profitability.

Enterprise Value instead of market cap (share price) is used in the calculation because it is the real price stock and bond investors together pay for the company.


Be Aware

Joel Greenblatt's definition of earnings yield has the same problems the regular earnings yield does. It does not consider the growth of the company. It only looks at one-year's business operation. For cyclical companies, the earnings yield is usually highest at the peak of the business cycle. But these earnings are rarely sustainable.

Forward Rate of Return (Yacktman) % based on Don Yacktman's definition is a better measure of the expected rate of return for a stock.


Siam Technic Concrete PCL Earnings Yield (Joel Greenblatt) % Related Terms


Siam Technic Concrete PCL Earnings Yield (Joel Greenblatt) % Historical Data

* Premium members only.

The historical data trend for Siam Technic Concrete PCL's Earnings Yield (Joel Greenblatt) % 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.

Siam Technic Concrete PCL Earnings Yield (Joel Greenblatt) % Chart

Siam Technic Concrete PCL Annual Data
Trend Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Earnings Yield (Joel Greenblatt) %
Get a 7-Day Free Trial 5.81 6.53 8.34 10.60 13.18

Siam Technic Concrete PCL Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
Earnings Yield (Joel Greenblatt) % 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 10.60 14.64 13.79 12.63 13.18

BKK:STECH vs CRH, VMC, MLM: Earnings Yield (Joel Greenblatt) % Comparison

For the Building Materials subindustry, Siam Technic Concrete PCL's Earnings Yield (Joel Greenblatt) %, along with its competitors' market caps and Earnings Yield (Joel Greenblatt) % 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.


Siam Technic Concrete PCL Earnings Yield (Joel Greenblatt) % vs Building Materials Industry

For the Building Materials industry and Basic Materials sector, Siam Technic Concrete PCL's Earnings Yield (Joel Greenblatt) % distribution charts can be found below:

* The bar in red indicates where Siam Technic Concrete PCL's Earnings Yield (Joel Greenblatt) % falls into.


BKK:STECH
80GF Score
Siam Technic Concrete PCL BKK:STECH
Earnings Yield (Joel Greenblatt) % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Siam Technic Concrete PCL Earnings Yield (Joel Greenblatt) % Calculation

In his book, The Little That Beat the Market, hedge fund manager Joel Greenblatt defines Earnings Yield as operating income divided by enterprise value.

Siam Technic Concrete PCLs Earnings Yield (Joel Greenblatt) for the fiscal year that ended in Dec. 2025 is calculated as

Earnings Yield (Joel Greenblatt)=EBIT/Enterprise Value
=219.658/1668.137
=13.17 %

Siam Technic Concrete PCL's EBIT for the trailing twelve months (TTM) ended in Dec. 2025 adds up the quarterly data reported by the company within the most recent 12 months, which was ฿220 Mil.


What does a Earnings Yield (Joel Greenblatt) % of 13.18% mean?
Siam Technic Concrete PCL (BKK:STECH) has a Earnings Yield (Joel Greenblatt) % of 13.18% as of Dec. 2025. Joel Greenblatt's earnings yield equals the ratio of earnings before interest and taxes to enterprise value. View historical data on Siam Technic Concrete PCL and its competitors. This is 67% above median its historical median of 7.90. Over the past decade, Siam Technic Concrete PCL's Earnings Yield (Joel Greenblatt) % has ranged from 4.77 to 15.13. According to the industry distribution chart, Siam Technic Concrete PCL ranks #83 out of 417 companies in the Building Materials industry, placing it in the top 19.9%.
Is Siam Technic Concrete PCL's Earnings Yield (Joel Greenblatt) % too high?
Siam Technic Concrete PCL's current Earnings Yield (Joel Greenblatt) % of 13.18% is 67% above median its 10-year median of 7.90. Over the past 10 years, this metric has ranged from a low of 4.77 to a high of 15.13. The Building Materials industry median Earnings Yield (Joel Greenblatt) % is 5.34. Siam Technic Concrete PCL's value of 13.18% is 146.8% above this industry median. Based on the distribution chart, Siam Technic Concrete PCL ranks #83 out of 417 companies in the Building Materials industry, which is in the top quartile — a strong position relative to peers. Overall, Siam Technic Concrete PCL has a GF Score™ of 80/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Siam Technic Concrete PCL's Earnings Yield (Joel Greenblatt) % compare to CRH and VMC?
According to the Building Materials industry distribution chart, Siam Technic Concrete PCL ranks #83 out of 417 companies for Earnings Yield (Joel Greenblatt) %. This places Siam Technic Concrete PCL in the top 20% of its industry — outperforming the majority of peers. The industry median Earnings Yield (Joel Greenblatt) % is 5.34. Siam Technic Concrete PCL's value of 13.18% is 146.8% above this benchmark. Historically, Siam Technic Concrete PCL's own Earnings Yield (Joel Greenblatt) % has ranged from 4.77 to 15.13 over the past decade. While the company's 10-year median is 7.90 vs. the industry median of 5.34, Siam Technic Concrete 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 Earnings Yield (Joel Greenblatt) % for a Building Materials company?
The median Earnings Yield (Joel Greenblatt) % among Building Materials companies is 5.34, based on 417 companies in the industry. Companies in the top quartile (top 25%) have a Earnings Yield (Joel Greenblatt) % significantly above this median, while those in the bottom quartile fall well below. However, Earnings Yield (Joel Greenblatt) % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Siam Technic Concrete PCL's current Earnings Yield (Joel Greenblatt) % of 13.18% is 146.8% 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 Earnings Yield (Joel Greenblatt) % mean?
A high Earnings Yield (Joel Greenblatt) % can signal that a stock is expensive relative to its fundamentals. Joel Greenblatt's earnings yield equals the ratio of earnings before interest and taxes to enterprise value. View historical data on Siam Technic Concrete PCL and its competitors. For the Building Materials industry, the median Earnings Yield (Joel Greenblatt) % is 5.34 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Siam Technic Concrete PCL's current Earnings Yield (Joel Greenblatt) % is 13.18%, which is 67% above median its own 10-year median of 7.90. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Siam Technic Concrete PCL stock overvalued right now?
Based on GuruFocus' analysis, Siam Technic Concrete PCL (BKK:STECH) is currently considered Modestly Undervalued. The stock's GF Value™ is ฿1.38, compared to a current price of ฿1.20 — trading 13% below its estimated fair value. The current Earnings Yield (Joel Greenblatt) % is 13.18%, which is 67% above median its 10-year median of 7.90 and 146.8% above the Building Materials industry median of 5.34. Siam Technic Concrete PCL's overall GF Score™ is 80/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Earnings Yield (Joel Greenblatt) % calculated?
Earnings Yield (Joel Greenblatt) % is calculated from a company's financial statements. For Siam Technic Concrete PCL (BKK:STECH), the current Earnings Yield (Joel Greenblatt) % is 13.18% as of Dec. 2025. 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 Siam Technic Concrete PCL (BKK:STECH) Overvalued in 2026?

Based on GuruFocus' analysis, Siam Technic Concrete PCL stock appears to be undervalued. The current stock price of ฿1.20 is trading 13% below its estimated GF Value™ of ฿1.38. GuruFocus considers Siam Technic Concrete PCL to be Modestly Undervalued.

Key valuation signals for BKK:STECH:

  • Earnings Yield (Joel Greenblatt) %: 13.18% (67% above median its 10-year median of 7.90)
  • GF Value™: ฿1.38 vs. price of ฿1.20 (13% below fair value)
  • GF Score™: 80/100 with 6 warning signs
  • Industry Position: 146.8% above the Building Materials median (#83 of 417)

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


Siam Technic Concrete PCL Business Description

Address Ngamwongwan Road, No. 50 Soi Ngam Wong Wan 47, Intersection 20, Thungsonghong Sub-district, Laksi District, Bangkok, THA, 10210
Siam Technic Concrete PCL is engaged in the manufacture of prestressed concrete products and construction contractor service. The firm has two reportable segments namely Sale of goods and services and Construction. The company generates the majority of its revenue from the Sale of goods and service segments. The Company is managed and operates principally in Thailand.
80GF Score

Get the complete analysis for BKK:STECH

Earnings Yield (Joel Greenblatt) % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

฿1.20
Price
฿1.38
GF Value