Siamrajathanee PCLBKK:SO 86 PEG Ratio is 1.21 as of Jul. 05, 2026, which is 4% above its 10-year median of 1.16. GuruFocus rates BKK:SO with a GF Score™ of 86/100 and a GF Value™ of ฿5.69 (Modestly Undervalued). The stock has 5 warning signs investors should review. Among 446 Business Services companies, Siamrajathanee PCL ranks worse than 50.45% on this metric.
* The 5-Year EBITDA Growth Rate is the 5-year average EBITDA per share growth rate. While the denominator is a percentage, we use the whole number as opposed to the decimal form for the calculation. For example, 5% would be shown as 5 as opposed to 0.05. If it's smaller than or equal to 0, then the PEG Ratio is not calculated.
The historical rank and industry rank for Siamrajathanee PCL's PEG Ratio or its related term are showing as below:
BKK:SO'
s PEG Ratio Range Over the Past 10 Years
Min: 0.71 Med: 1.16 Max: 316.75
Current: 1.21
During the past 11 years, Siamrajathanee PCL's highest PEG Ratio was 316.75. The lowest was 0.71. And the median was 1.16.
BKK:SO's PEG Ratio is ranked worse than 50.45% of 446
companies
in the Business Services industry
Industry Median: 1.19
vs BKK:SO: 1.21
Peter Lynch thinks a company with a P/E ratio equal to its growth rate is fairly valued.
Siamrajathanee PCL (BKK:SO) PEG Ratio Explanation
To compare stocks with different growth rates, Peter Lynch invented a ratio called PEG Ratio. PEG Ratio is defined as the P/E ratio divided by the growth ratio. He thinks a company with a P/E ratio equal to its growth rate is fairly valued. Still he said he would rather buy a company growing 20% a year with a P/E of 20, instead of a company growing 10% a year with a P/E of 10.
Siamrajathanee PCL PEG Ratio Related Terms
Siamrajathanee PCL PEG Ratio Historical Data
* Premium members only.
The historical data trend for Siamrajathanee PCL's PEG Ratio 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.
For the Specialty Business Services subindustry, Siamrajathanee PCL's PEG Ratio, along with its competitors' market caps and PEG 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.
Siamrajathanee PCL PEG Ratio vs Business Services Industry
For the Business Services industry and Industrials sector, Siamrajathanee PCL's PEG Ratio distribution charts can be found below:
* The bar in red indicates where Siamrajathanee PCL's PEG Ratio falls into.
* 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: The 5-Year EBITDA Growth Rate is the 5-year average EBITDA per share growth rate. While the denominator is a percentage, we use the whole number as opposed to the decimal form for the calculation. For example, 5% would be shown as 5 as opposed to 0.05. If it's smaller than or equal to 0, then the PEG Ratio is not calculated.
Siamrajathanee PCL (BKK:SO) has a PEG Ratio of 1.21 as of Jul. 05, 2026. Price-earnings to growth ratio is the ratio of price-earnings to a company's earnings growth rate. View historical data on Siamrajathanee PCL and its competitors. This is near median its historical median of 1.16. Over the past decade, Siamrajathanee PCL's PEG Ratio has ranged from 0.71 to 316.75. According to the industry distribution chart, Siamrajathanee PCL ranks #225 out of 446 companies in the Business Services industry, placing it in the top 50.4%.
Is Siamrajathanee PCL's PEG Ratio too high?
Siamrajathanee PCL's current PEG Ratio of 1.21 is near median its 10-year median of 1.16. Over the past 10 years, this metric has ranged from a low of 0.71 to a high of 316.75. The Business Services industry median PEG Ratio is 1.19. Siamrajathanee PCL's value of 1.21 is 1.7% above this industry median. Based on the distribution chart, Siamrajathanee PCL ranks #225 out of 446 companies in the Business Services industry, which is below the industry midpoint. 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 PEG Ratio compare to CTAS and CPRT?
According to the Business Services industry distribution chart, Siamrajathanee PCL ranks #225 out of 446 companies for PEG Ratio. This places Siamrajathanee PCL in the lower half of its industry. The industry median PEG Ratio is 1.19. Siamrajathanee PCL's value of 1.21 is 1.7% above this benchmark. Historically, Siamrajathanee PCL's own PEG Ratio has ranged from 0.71 to 316.75 over the past decade. While the company's 10-year median is 1.16 vs. the industry median of 1.19, 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 PEG Ratio for a Business Services company?
The median PEG Ratio among Business Services companies is 1.19, based on 446 companies in the industry. Companies in the top quartile (top 25%) have a PEG Ratio significantly above this median, while those in the bottom quartile fall well below. However, PEG Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Siamrajathanee PCL's current PEG Ratio of 1.21 is 1.7% 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 PEG Ratio mean?
A high PEG Ratio can signal that a stock is expensive relative to its fundamentals. Price-earnings to growth ratio is the ratio of price-earnings to a company's earnings growth rate. View historical data on Siamrajathanee PCL and its competitors. For the Business Services industry, the median PEG Ratio is 1.19 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Siamrajathanee PCL's current PEG Ratio is 1.21, which is near median its own 10-year median of 1.16. 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 ฿5.69, compared to a current price of ฿4.64 — trading 18.5% below its estimated fair value. The current PEG Ratio is 1.21, which is near median its 10-year median of 1.16 and 1.7% above the Business Services industry median of 1.19. 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 PEG Ratio calculated?
PEG Ratio is calculated from a company's financial statements. For Siamrajathanee PCL (BKK:SO), the current PEG Ratio is 1.21 as of Jul. 05, 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 18.5% below its estimated GF Value™ of ฿5.69.
GuruFocus considers Siamrajathanee PCL to be Modestly Undervalued.
Key valuation signals for BKK:SO:
PEG Ratio: 1.21 (near median its 10-year median of 1.16)
GF Value™: ฿5.69 vs. price of ฿4.64 (18.5% below fair value)
Industry Position: 1.7% above the Business Services median (#225 of 446)
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 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
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