SISB PCL (BKK:SISB) 9-Day RSI: 42.61 (As of Aug. 07, 2026)

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:SISB SISB PCL BKK:SISB
88 GF Score
Price ฿9.75
GF Value ฿35.03
Valuation Significantly Undervalued
! 2 Warning Signs
View Full Analysis

What is SISB PCL 9-Day RSI?

SISB PCL BKK:SISB +0.52% 88 9-Day RSI is 42.61 as of Aug. 07, 2026. GuruFocus rates BKK:SISB with a GF Score™ of 88/100 and a GF Value™ of ฿35.03 (Significantly Undervalued). The stock has 2 warning signs investors should review. Among 270 Education companies, SISB PCL ranks better than 71.48% on this metric.

The Relative Strength Index (RSI) is a momentum oscillator that measures the speed and change of price movements. The RSI is most typically used on a 14-day period, measured on a scale from 0 to 100. Traditionally, an asset is considered overbought or overvalued when the RSI is above 70 and oversold or undervalued when it is below 30. A shorter period RSI is more reactive to recent price changes, so it can show early signs of reversals. 9-Day RSI is sometimes used together with 14-Day RSI in a two period divergence strategy.

As of today (2026-08-07), SISB PCL's 9-Day RSI is 42.61.

The industry rank for SISB PCL's 9-Day RSI or its related term are showing as below:

BKK:SISB's 9-Day RSI is ranked better than
71.48% of 270 companies
in the Education industry
Industry Median: 51.25 vs BKK:SISB: 42.61

SISB PCL  (BKK:SISB) 9-Day RSI Explanation

The Relative Strength Index (RSI), developed by J. Welles Wilder in his book “New Concepts in Technical Trading Systems.”, is a momentum oscillator that measures the speed and change of price movements. The RSI is most typically used on a 14-day period, measured on a scale from 0 to 100.

Traditionally, an asset is considered overbought or overvalued when the RSI is above 70 and oversold or undervalued when it is below 30. A RSI surpasses the 30 level indicates a bullish sign, when it slides below 70 level, it’s a bearish sign. This level can be adjusted depending on the security’s pattern and the market’s underlying trend. In an uptrend or bullish market, the RSI might range within a higher interval, investors could set the support level higher. If a downtrend or bearish market occurs, investors may need to lower the resistance level.

RSI can also be used in trading techniques to indicate the trading signal, such as Divergences and Swing Rejections. A shorter period RSI is more reactive to recent price changes, so it can show early signs of reversals. 9-Day RSI is sometimes used together with 14-Day RSI in a two period divergence strategy.


SISB PCL 9-Day RSI Related Terms


BKK:SISB vs EDU, TAL, LAUR: 9-Day RSI Comparison

For the Education & Training Services subindustry, SISB PCL's 9-Day RSI, along with its competitors' market caps and 9-Day RSI 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 9-Day RSI vs Education Industry

For the Education industry and Consumer Defensive sector, SISB PCL's 9-Day RSI distribution charts can be found below:

* The bar in red indicates where SISB PCL's 9-Day RSI falls into.


BKK:SISB
88GF Score
SISB PCL BKK:SISB
9-Day RSI is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

SISB PCL  (BKK:SISB) 9-Day RSI Calculation

The formula for calculating RSI is:

RSI=100[ 100 / ( 1 + Average Gain / Average Loss )]

* Note that the formula uses a positive value for the average loss.

* 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.

Frequently Asked Questions Learn more about 9-Day RSI →
What does a 9-Day RSI of 42.61 mean?
SISB PCL (BKK:SISB) has a 9-Day RSI of 42.61 as of Aug. 07, 2026. According to the industry distribution chart, SISB PCL ranks #77 out of 270 companies in the Education industry, placing it in the top 28.5%.
Is SISB PCL's 9-Day RSI too high?
SISB PCL's current 9-Day RSI is 42.61. The Education industry median 9-Day RSI is 51.25. SISB PCL's value of 42.61 is 16.9% below this industry median. Based on the distribution chart, SISB PCL ranks #77 out of 270 companies in the Education industry, which is above the industry midpoint. 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 9-Day RSI compare to EDU and TAL?
According to the Education industry distribution chart, SISB PCL ranks #77 out of 270 companies for 9-Day RSI. This puts SISB PCL in the upper half of its industry. The industry median 9-Day RSI is 51.25. SISB PCL's value of 42.61 is 16.9% below this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 9-Day RSI for an Education company?
The median 9-Day RSI among Education companies is 51.25, based on 270 companies in the industry. Companies in the top quartile (top 25%) have a 9-Day RSI significantly above this median, while those in the bottom quartile fall well below. However, 9-Day RSI should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. SISB PCL's current 9-Day RSI of 42.61 is 16.9% 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 9-Day RSI mean?
A high 9-Day RSI can signal that a stock is expensive relative to its fundamentals. For the Education industry, the median 9-Day RSI is 51.25 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. SISB PCL's current 9-Day RSI is 42.61. 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 ฿35.03, compared to a current price of ฿9.75 — trading 72.2% below its estimated fair value. The current 9-Day RSI is 42.61 and 16.9% below the Education industry median of 51.25. 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 9-Day RSI calculated?
9-Day RSI is calculated from a company's financial statements. For SISB PCL (BKK:SISB), the current 9-Day RSI is 42.61 as of Aug. 07, 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 ฿9.75 is trading 72.2% below its estimated GF Value™ of ฿35.03. GuruFocus considers SISB PCL to be Significantly Undervalued.

Key valuation signals for BKK:SISB:

  • 9-Day RSI: 42.61
  • GF Value™: ฿35.03 vs. price of ฿9.75 (72.2% below fair value)
  • GF Score™: 88/100 with 2 warning signs
  • Industry Position: 16.9% below the Education median (#77 of 270)

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 Business Description

Address Pracha Uthit Road, 498/12, Soi Ramkhamhaeng 39 (Tepleela 1), Wangthonglang, Bangkok, THA, 10310
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

9-Day RSI is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

฿9.75
Price
฿35.03
GF Value