Siamrajathanee PCL (BKK:SO) 5-Year Yield-on-Cost %: 24.50 (As of Jul. 27, 2026) — 97% 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:SO Siamrajathanee PCL BKK:SO
86 GF Score
Price ฿4.64
GF Value ฿5.72
Valuation Modestly Undervalued
! 5 Warning Signs
View Full Analysis

What is Siamrajathanee PCL 5-Year Yield-on-Cost %?

Siamrajathanee PCL BKK:SO 86 5-Year Yield-on-Cost % is 24.50 as of Jul. 27, 2026, which is 97% above its 10-year median of 12.41. GuruFocus rates BKK:SO with a GF Score™ of 86/100 and a GF Value™ of ฿5.72 (Modestly Undervalued). The stock has 5 warning signs investors should review. Among 596 Business Services companies, Siamrajathanee PCL ranks better than 96.31% on this metric.

Siamrajathanee PCL's yield on cost for the quarter that ended in Mar. 2026 was 24.50.


The historical rank and industry rank for Siamrajathanee PCL's 5-Year Yield-on-Cost % or its related term are showing as below:

BKK:SO' s 5-Year Yield-on-Cost % Range Over the Past 10 Years
Min: 3.08   Med: 12.41   Max: 28.72
Current: 24.5


During the past 11 years, Siamrajathanee PCL's highest Yield on Cost was 28.72. The lowest was 3.08. And the median was 12.41.


BKK:SO's 5-Year Yield-on-Cost % is ranked better than
96.31% of 596 companies
in the Business Services industry
Industry Median: 4.07 vs BKK:SO: 24.50

Siamrajathanee PCL  (BKK:SO) 5-Year Yield-on-Cost % Explanation

Of course the risk here is that the company may not raise its dividends as it did before. The key is to select the companies that can consistently raise its dividends. Usually companies with long history of raising dividends tend to do so.


Siamrajathanee PCL 5-Year Yield-on-Cost % Related Terms


BKK:SO vs CTAS, CPRT, GPN: 5-Year Yield-on-Cost % Comparison

For the Specialty Business Services subindustry, Siamrajathanee PCL's 5-Year Yield-on-Cost %, along with its competitors' market caps and 5-Year Yield-on-Cost % 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.


Siamrajathanee PCL 5-Year Yield-on-Cost % vs Business Services Industry

For the Business Services industry and Industrials sector, Siamrajathanee PCL's 5-Year Yield-on-Cost % distribution charts can be found below:

* The bar in red indicates where Siamrajathanee PCL's 5-Year Yield-on-Cost % falls into.


BKK:SO
86GF Score
Siamrajathanee PCL BKK:SO
5-Year Yield-on-Cost % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Siamrajathanee PCL 5-Year Yield-on-Cost % Calculation

Dividend Yield % and dividend growth of a stock is an important factor for income investors. But if company A raises its dividend constantly faster than company B, company A's future dividend yield might be much higher than Company B's even if their yields are the same now and their stock prices do not change.

Yield on Cost assumes that you buy and the stock today, and hold it for 5 years. If the company raises it dividends at the same rate as it did over the past 5 years, the dividends investors receive annually in 5 years relative to the stock price today.

Therefore, Yield-on-Cost of Siamrajathanee PCL is calculated as

Yield-on-Cost=Dividend Yield %*(1+Dividend Growth Rate)^5
Frequently Asked Questions Learn more about 5-Year Yield-on-Cost % →
What does a 5-Year Yield-on-Cost % of 24.50 mean?
Siamrajathanee PCL (BKK:SO) has a 5-Year Yield-on-Cost % of 24.50 as of Jul. 27, 2026. 5-Year Yield on Cost measures the expected yield based on a company's current yield and 5-year dividend growth. View historical data on Siamrajathanee PCL and its competitors. This is 97% above median its historical median of 12.41. Over the past decade, Siamrajathanee PCL's 5-Year Yield-on-Cost % has ranged from 3.08 to 28.72. According to the industry distribution chart, Siamrajathanee PCL ranks #22 out of 596 companies in the Business Services industry, placing it in the top 3.7%.
Is Siamrajathanee PCL's 5-Year Yield-on-Cost % too high?
Siamrajathanee PCL's current 5-Year Yield-on-Cost % of 24.50 is 97% above median its 10-year median of 12.41. Over the past 10 years, this metric has ranged from a low of 3.08 to a high of 28.72. The Business Services industry median 5-Year Yield-on-Cost % is 4.07. Siamrajathanee PCL's value of 24.50 is 502% above this industry median. Based on the distribution chart, Siamrajathanee PCL ranks #22 out of 596 companies in the Business Services industry, which is in the top quartile — a strong position relative to peers. Overall, Siamrajathanee PCL has a GF Score™ of 86/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Siamrajathanee PCL's 5-Year Yield-on-Cost % compare to CTAS and CPRT?
According to the Business Services industry distribution chart, Siamrajathanee PCL ranks #22 out of 596 companies for 5-Year Yield-on-Cost %. This places Siamrajathanee PCL in the top 4% of its industry — outperforming the majority of peers. The industry median 5-Year Yield-on-Cost % is 4.07. Siamrajathanee PCL's value of 24.50 is 502% above this benchmark. Historically, Siamrajathanee PCL's own 5-Year Yield-on-Cost % has ranged from 3.08 to 28.72 over the past decade. While the company's 10-year median is 12.41 vs. the industry median of 4.07, Siamrajathanee 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 5-Year Yield-on-Cost % for a Business Services company?
The median 5-Year Yield-on-Cost % among Business Services companies is 4.07, based on 596 companies in the industry. Companies in the top quartile (top 25%) have a 5-Year Yield-on-Cost % significantly above this median, while those in the bottom quartile fall well below. However, 5-Year Yield-on-Cost % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Siamrajathanee PCL's current 5-Year Yield-on-Cost % of 24.50 is 502% 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 5-Year Yield-on-Cost % mean?
A high 5-Year Yield-on-Cost % can signal that a stock is expensive relative to its fundamentals. 5-Year Yield on Cost measures the expected yield based on a company's current yield and 5-year dividend growth. View historical data on Siamrajathanee PCL and its competitors. For the Business Services industry, the median 5-Year Yield-on-Cost % is 4.07 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Siamrajathanee PCL's current 5-Year Yield-on-Cost % is 24.50, which is 97% above median its own 10-year median of 12.41. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Siamrajathanee PCL stock overvalued right now?
Based on GuruFocus' analysis, Siamrajathanee PCL (BKK:SO) is currently considered Modestly Undervalued. The stock's GF Value™ is ฿5.72, compared to a current price of ฿4.64 — trading 18.9% below its estimated fair value. The current 5-Year Yield-on-Cost % is 24.50, which is 97% above median its 10-year median of 12.41 and 502% above the Business Services industry median of 4.07. Siamrajathanee PCL's overall GF Score™ is 86/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 5-Year Yield-on-Cost % calculated?
5-Year Yield-on-Cost % is calculated from a company's financial statements. For Siamrajathanee PCL (BKK:SO), the current 5-Year Yield-on-Cost % is 24.50 as of Jul. 27, 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 Siamrajathanee PCL (BKK:SO) Overvalued in 2026?

Based on GuruFocus' analysis, Siamrajathanee PCL stock appears to be undervalued. The current stock price of ฿4.64 is trading 18.9% below its estimated GF Value™ of ฿5.72. GuruFocus considers Siamrajathanee PCL to be Modestly Undervalued.

Key valuation signals for BKK:SO:

  • 5-Year Yield-on-Cost %: 24.50 (97% above median its 10-year median of 12.41)
  • GF Value™: ฿5.72 vs. price of ฿4.64 (18.9% below fair value)
  • GF Score™: 86/100 with 5 warning signs
  • Industry Position: 502% above the Business Services median (#22 of 596)

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


Siamrajathanee PCL Business Description

Address 329 Moo 10, Old Railway Road, Kusolsong Samakkee Soi 1, Samrong Subdistrict, Phra Pradaeng District, Samutprakarn, THA, 10130
Siamrajathanee PCL is an outsourcing services company in Thailand for both the government and private sectors. It is principally engaged in providing outsourcing services and vehicle operating lease services. The company, along with its subsidiaries, is organized into business units based on its products and services and has the following reportable segments: the Outsourcing service segment, the Rental service segment, and others. A majority of its revenue is generated from the Outsourcing service segment, which provides services like Workforce management, corporate car rental, landscape maintenance, and industrial waste disposal. Geographically, the group operates only in Thailand.
86GF Score

Get the complete analysis for BKK:SO

5-Year Yield-on-Cost % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

฿4.64
Price
฿5.72
GF Value