Siamrajathanee PCLBKK:SO 88 OCF Margin % is 19.54% as of Mar. 2026, which is 57% above its 10-year median of 12.43. GuruFocus rates BKK:SO with a GF Score™ of 88/100 and a GF Value™ of ฿5.68 (Modestly Undervalued). The stock has 5 warning signs investors should review. Among 1,070 Business Services companies, Siamrajathanee PCL ranks better than 78.22% on this metric.
The historical rank and industry rank for Siamrajathanee PCL's OCF Margin % or its related term are showing as below:
BKK:SO'
s OCF Margin % Range Over the Past 10 Years
Min: 8.04 Med: 12.43 Max: 17.26
Current: 18.89
During the past 11 years, the highest OCF Margin % of Siamrajathanee PCL was 17.26%. The lowest was 8.04%. And the median was 12.43%.
BKK:SO's OCF Margin % is ranked better than 78.22% of 1070
companies
in the Business Services industry
Industry Median: 7.005
vs BKK:SO: 18.89
Siamrajathanee PCL OCF Margin % Related Terms
Siamrajathanee PCL OCF Margin % Historical Data
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The historical data trend for Siamrajathanee PCL's OCF Margin % 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.
BKK:SO vs CTAS, CPRT, GPN: OCF Margin % Comparison
For the Specialty Business Services subindustry, Siamrajathanee PCL's OCF Margin %, along with its competitors' market caps and OCF Margin % 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 OCF Margin % vs Business Services Industry
For the Business Services industry and Industrials sector, Siamrajathanee PCL's OCF Margin % distribution charts can be found below:
* The bar in red indicates where Siamrajathanee PCL's OCF Margin % 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.
Siamrajathanee PCL (BKK:SO) has a OCF Margin % of 19.54% as of Mar. 2026. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on Siamrajathanee PCL and its competitors. This is 57% above median its historical median of 12.43. Over the past decade, Siamrajathanee PCL's OCF Margin % has ranged from 8.04 to 17.26. According to the industry distribution chart, Siamrajathanee PCL ranks #233 out of 1070 companies in the Business Services industry, placing it in the top 21.8%.
Is Siamrajathanee PCL's OCF Margin % too high?
Siamrajathanee PCL's current OCF Margin % of 19.54% is 57% above median its 10-year median of 12.43. Over the past 10 years, this metric has ranged from a low of 8.04 to a high of 17.26. The Business Services industry median OCF Margin % is 7.01. Siamrajathanee PCL's value of 19.54% is 178.9% above this industry median. Based on the distribution chart, Siamrajathanee PCL ranks #233 out of 1070 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 88/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Siamrajathanee PCL's OCF Margin % compare to CTAS and CPRT?
According to the Business Services industry distribution chart, Siamrajathanee PCL ranks #233 out of 1070 companies for OCF Margin %. This places Siamrajathanee PCL in the top 22% of its industry — outperforming the majority of peers. The industry median OCF Margin % is 7.01. Siamrajathanee PCL's value of 19.54% is 178.9% above this benchmark. Historically, Siamrajathanee PCL's own OCF Margin % has ranged from 8.04 to 17.26 over the past decade. While the company's 10-year median is 12.43 vs. the industry median of 7.01, 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 OCF Margin % for a Business Services company?
The median OCF Margin % among Business Services companies is 7.01, based on 1,070 companies in the industry. Companies in the top quartile (top 25%) have a OCF Margin % significantly above this median, while those in the bottom quartile fall well below. However, OCF Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Siamrajathanee PCL's current OCF Margin % of 19.54% is 178.9% 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 OCF Margin % mean?
A high OCF Margin % can signal that a stock is expensive relative to its fundamentals. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on Siamrajathanee PCL and its competitors. For the Business Services industry, the median OCF Margin % is 7.01 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Siamrajathanee PCL's current OCF Margin % is 19.54%, which is 57% above median its own 10-year median of 12.43. 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 ฿5.68, compared to a current price of ฿4.64 — trading 18.3% below its estimated fair value. The current OCF Margin % is 19.54%, which is 57% above median its 10-year median of 12.43 and 178.9% above the Business Services industry median of 7.01. Siamrajathanee PCL's overall GF Score™ is 88/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is OCF Margin % calculated?
OCF Margin % is calculated from a company's financial statements. For Siamrajathanee PCL (BKK:SO), the current OCF Margin % is 19.54% 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 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 18.3% below its estimated GF Value™ of ฿5.68.
GuruFocus considers Siamrajathanee PCL to be Modestly Undervalued.
Key valuation signals for BKK:SO:
OCF Margin %: 19.54% (57% above median its 10-year median of 12.43)
GF Value™: ฿5.68 vs. price of ฿4.64 (18.3% below fair value)
Industry Position: 178.9% above the Business Services median (#233 of 1070)
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.
88GF Score
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