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SISB PCLBKK:SISB-R +0.53%83 Shiller PE Ratio is 17.41 as of Aug. 27, 2026, which is 9% below its 10-year median of 19.12. GuruFocus rates BKK:SISB-R with a GF Score™ of 83/100 and a GF Value™ of ฿27.38 (Significantly Undervalued). The stock has 2 warning signs investors should review. Among 116 Education companies, SISB PCL ranks worse than 53.45% on this metric.
As of today (2026-08-27), SISB PCL's current share price is ฿9.40. SISB PCL's E10 for the quarter that ended in Jun. 2026 was ฿0.54. SISB PCL's Shiller PE Ratio for today is 17.41.
The historical rank and industry rank for SISB PCL's Shiller PE Ratio or its related term are showing as below:
BKK:SISB-R'
s Shiller PE Ratio Range Over the Past 10 Years
Min: 18.33 Med: 19.12 Max: 21.18
Current: 18.58
During the past years, SISB PCL's highest Shiller PE Ratio was 21.18. The lowest was 18.33. And the median was 19.12.
BKK:SISB-R's Shiller PE Ratio is ranked worse than 53.45% of 116
companies
in the Education industry
Industry Median: 17.86
vs BKK:SISB-R: 18.58
E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.
SISB PCL's adjusted earnings per share data for the three months ended in Jun. 2026 was ฿0.210. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is ฿0.54 for the trailing ten years ended in Jun. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
SISB PCL (BKK:SISB-R) Shiller PE Ratio Explanation
Compared with the regular PE Ratio, which works poorly for cyclical businesses, the Shiller PE Ratio smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Shiller PE Ratio should give similar results to regular PE Ratio.
Compared with the PS Ratio, the Shiller PE Ratio makes the comparison between different industries more meaningful.
Be Aware
Shiller PE Ratio assumes that over the long term, businesses and profitability revert to their means. If a company's business model does not work in the future compared with the past, Shiller PE Ratio and PS Ratio will give false valuations.
SISB PCL Shiller PE Ratio Related Terms
SISB PCL Shiller PE Ratio Historical Data
* Premium members only.
The historical data trend for SISB PCL's Shiller PE 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.
BKK:SISB-R vs EDU, TAL, LAUR: Shiller PE Ratio Comparison
For the Education & Training Services subindustry, SISB PCL's Shiller PE Ratio, along with its competitors' market caps and Shiller PE 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.
SISB PCL Shiller PE Ratio vs Education Industry
For the Education industry and Consumer Defensive sector, SISB PCL's Shiller PE Ratio distribution charts can be found below:
* The bar in red indicates where SISB PCL's Shiller PE Ratio falls into.
For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller PE Ratio is also called PE10.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.
SISB PCL's Shiller PE Ratio for today is calculated as
* 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.
SISB PCL's E10 for the quarter that ended in Jun. 2026 is calculated as:
For example, SISB PCL's adjusted earnings per share data for the three months ended in Jun. 2026 was:
Add all the adjusted EPS together and divide 10 will get our E10.
Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.
SISB PCL (BKK:SISB-R) has a Shiller PE Ratio of 17.41 as of Aug. 27, 2026. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on SISB PCL and its competitors. This is near median its historical median of 19.12. Over the past decade, SISB PCL's Shiller PE Ratio has ranged from 18.33 to 21.18. According to the industry distribution chart, SISB PCL ranks #62 out of 116 companies in the Education industry, placing it in the top 53.4%.
Is SISB PCL's Shiller PE Ratio too high?
SISB PCL's current Shiller PE Ratio of 17.41 is near median its 10-year median of 19.12. Over the past 10 years, this metric has ranged from a low of 18.33 to a high of 21.18. The Education industry median Shiller PE Ratio is 17.86. SISB PCL's value of 17.41 is 2.5% below this industry median. Based on the distribution chart, SISB PCL ranks #62 out of 116 companies in the Education industry, which is below the industry midpoint. Overall, SISB PCL has a GF Score™ of 83/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does SISB PCL's Shiller PE Ratio compare to EDU and TAL?
According to the Education industry distribution chart, SISB PCL ranks #62 out of 116 companies for Shiller PE Ratio. This places SISB PCL in the lower half of its industry. The industry median Shiller PE Ratio is 17.86. SISB PCL's value of 17.41 is 2.5% below this benchmark. Historically, SISB PCL's own Shiller PE Ratio has ranged from 18.33 to 21.18 over the past decade. While the company's 10-year median is 19.12 vs. the industry median of 17.86, SISB PCL has consistently been below 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 Shiller PE Ratio for an Education company?
The median Shiller PE Ratio among Education companies is 17.86, based on 116 companies in the industry. Companies in the top quartile (top 25%) have a Shiller PE Ratio significantly above this median, while those in the bottom quartile fall well below. However, Shiller PE Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. SISB PCL's current Shiller PE Ratio of 17.41 is 2.5% below 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 Shiller PE Ratio mean?
A high Shiller PE Ratio can signal that a stock is expensive relative to its fundamentals. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on SISB PCL and its competitors. For the Education industry, the median Shiller PE Ratio is 17.86 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. SISB PCL's current Shiller PE Ratio is 17.41, which is near median its own 10-year median of 19.12. 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-R) is currently considered Significantly Undervalued. The stock's GF Value™ is ฿27.38, compared to a current price of ฿9.40 — trading 65.7% below its estimated fair value. The current Shiller PE Ratio is 17.41, which is near median its 10-year median of 19.12 and 2.5% below the Education industry median of 17.86. SISB PCL's overall GF Score™ is 83/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Shiller PE Ratio calculated?
Shiller PE Ratio is calculated from a company's financial statements. For SISB PCL (BKK:SISB-R), the current Shiller PE Ratio is 17.41 as of Aug. 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 SISB PCL (BKK:SISB-R) Overvalued in 2026?
Based on GuruFocus' analysis, SISB PCL stock appears to be undervalued.
The current stock price of ฿9.40 is trading 65.7% below its estimated GF Value™ of ฿27.38.
GuruFocus considers SISB PCL to be Significantly Undervalued.
Key valuation signals for BKK:SISB-R:
Shiller PE Ratio: 17.41 (near median its 10-year median of 19.12)
GF Value™: ฿27.38 vs. price of ฿9.40 (65.7% below fair value)
Industry Position: 2.5% below the Education median (#62 of 116)
No single metric tells the full story. See the BKK:SISB-R 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.
83GF Score
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