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.
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.
SISB PCL has the GF Score of 88, which implies that the company
might have
Good outperformance potential.
The GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation, which has been found to be closely correlated to the long-term performances of stocks by backtesting from 2006 to 2021. The stocks with a higher GF Score generally generate higher returns than those with lower GF Scores. Therefore, when picking stocks, investors should invest in companies with high GF Scores. The GF Score ranges from 0 to 100, with 100 as the highest rank.
GF Score takes following five key aspects into consideration:
Each one of these components is ranked and the ranks also have positive correlation with the long term performances of stocks. The GF score is calculated using the five key aspects of analysis. Through backtesting, we know that each of these key aspects has a different impact on the stock price performance. Thus, they are weighted differently when calculating the total score. The Profitability Rank and the Growth Rank are weighted fully, while other parameters have less weight.
Based on research and backtesting result, GuruFocus believes SISB PCL
might have
Good outperformance potential.
Please click GF Score to see more details on the GF Score's 5 Key Aspects of Analysis.
SISB PCL (BKK:SISB) GF Score Explanation
Based on the historical long-term performances among five valuation aspects, the GF Score is found to be closely correlated to the long-term performances of stocks. It ranges from 0 to 100, with 100 as the highest. GuruFocus divided GF Score into following 5 categories:
GF Score
Performance Potential and All-in-One Screener Examples (1)
(1) These are some simple examples. You can access our GF Score filter under All-in-One Screener’s Fundamental tab.
SISB PCL GF Score Related Terms
BKK:SISB vs EDU, TAL, LAUR: GF Score Comparison
For the Education & Training Services subindustry, SISB PCL's GF Score, along with its competitors' market caps and GF Score 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.
SISB PCL GF Score vs Education Industry
For the Education industry and Consumer Defensive sector, SISB PCL's GF Score distribution charts can be found below:
* The bar in red indicates where SISB PCL's GF Score falls into.
SISB PCL (BKK:SISB) has a GF Score of 88 as of Jul. 26, 2026. GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation. View historical data on SISB PCL and its competitors. This is 11% above median its historical median of 79.00. Over the past decade, SISB PCL's GF Score has ranged from 14.00 to 100.00.
Is SISB PCL's GF Score too high?
SISB PCL's current GF Score of 88 is 11% above median its 10-year median of 79.00. Over the past 10 years, this metric has ranged from a low of 14.00 to a high of 100.00. Overall, SISB PCL has a GF Score™ of 88/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does SISB PCL's GF Score compare to EDU and TAL?
SISB PCL's GF Score of 88 can be compared against companies in the Education industry. Historically, SISB PCL's own GF Score has ranged from 14.00 to 100.00 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good GF Score for an Education company?
A good GF Score depends on the Education industry context. However, GF Score 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 GF Score mean?
A high GF Score can signal that a stock is expensive relative to its fundamentals. GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation. View historical data on SISB PCL and its competitors. SISB PCL's current GF Score is 88, which is 11% above median its own 10-year median of 79.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is SISB PCL stock overvalued right now?
Based on GuruFocus' analysis, SISB PCL (BKK:SISB) is currently considered Significantly Undervalued. The stock's GF Value™ is ฿35.01, compared to a current price of ฿9.65 — trading 72.4% below its estimated fair value. The current GF Score is 88, which is 11% above median its 10-year median of 79.00. SISB PCL's overall GF Score™ is 88/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is GF Score calculated?
GF Score is calculated from a company's financial statements. For SISB PCL (BKK:SISB), the current GF Score is 88 as of Jul. 26, 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 SISB PCL (BKK:SISB) Overvalued in 2026?
Based on GuruFocus' analysis, SISB PCL stock appears to be undervalued.
The current stock price of ฿9.65 is trading 72.4% below its estimated GF Value™ of ฿35.01.
GuruFocus considers SISB PCL to be Significantly Undervalued.
Key valuation signals for BKK:SISB:
GF Score: 88 (11% above median its 10-year median of 79.00)
GF Value™: ฿35.01 vs. price of ฿9.65 (72.4% below fair value)
No single metric tells the full story. See the BKK:SISB stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
SISB PCL is principally engaged in the operation of international schools. Its operations are carried on only in Thailand. It is a provider of the Singapore curriculum for Mathematics and Science, with a focus on English, based on the Programme for International Student Assessment (PISA). It has five campuses in Thailand, which adopt the Singapore curriculum and Cambridge IGCSE A and AS Levels, as well as the International Baccalaureate. It teaches students to be trilingual: English, Thai, and Chinese, in addition to a holistic education to develop students to their fullest potential.
88GF Score
Get the complete analysis for BKK:SISB
GF Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
BKK:SISB has been successfully added to your 
