Volatility is a statistical measure of the dispersion of returns for a given security or market index, it shows how the price swings around its mean. The volatility here is measured as the annualized standard deviation between monthly returns from the security over the past year. In most cases, the higher the volatility, the riskier the security.
Volatility is a statistical measure of the dispersion of returns for a given security or market index. It’s often measured as standard deviation or variance of historical returns over a certain period. The volatility here is measured as the annualized standard deviation between monthly returns from the security over the past year.
Volatility reflects the uncertainty or risk of a security’s value. Generally speaking, a higher volatility suggests a higher risk, because it implies a wider fluctuation around average price. This means the price of the security can change dramatically in either direction within a short period. Conversely, a lower volatility means that the security's price is more steady, which suggests a lower risk.
Another measurement of relative volatility is Beta. Beta is a measure of systematic risk of a security or a portfolio in comparison to the market as a whole. Beta is usually compared to 1. A beta of greater than 1 indicates that the security's price will be more volatile than the market.
Siam Technic Concrete PCL Volatility Related Terms
BKK:STECH vs CRH, VMC, MLM: Volatility Comparison
For the Building Materials subindustry, Siam Technic Concrete PCL's Volatility, along with its competitors' market caps and Volatility 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.
Siam Technic Concrete PCL Volatility vs Building Materials Industry
For the Building Materials industry and Basic Materials sector, Siam Technic Concrete PCL's Volatility distribution charts can be found below:
* The bar in red indicates where Siam Technic Concrete PCL's Volatility falls into.
The annualized volatility is calculated as following:
σA
=
σM
*
√12
=
√ 1/(n-1) ∑(Ri - R')^2
*
√12
Where: σM is the monthly volatility, n is the number of months in the period, Ri is the security's historical monthly returns and R' is the arithmetic mean of monthly returns.
* 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.
Siam Technic Concrete PCL (BKK:STECH) has a Volatility of 14.43% as of Jul. 05, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on Siam Technic Concrete PCL and its competitors.
Is Siam Technic Concrete PCL's Volatility too high?
Siam Technic Concrete PCL's current Volatility is 14.43%. Overall, Siam Technic Concrete PCL has a GF Score™ of 82/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Siam Technic Concrete PCL's Volatility compare to CRH and VMC?
Siam Technic Concrete PCL's Volatility of 14.43% can be compared against companies in the Building Materials industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Volatility for a Building Materials company?
A good Volatility depends on the Building Materials industry context. However, Volatility 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 Volatility mean?
A high Volatility can signal that a stock is expensive relative to its fundamentals. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on Siam Technic Concrete PCL and its competitors. Siam Technic Concrete PCL's current Volatility is 14.43%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Siam Technic Concrete PCL stock overvalued right now?
Based on GuruFocus' analysis, Siam Technic Concrete PCL (BKK:STECH) is currently considered Modestly Undervalued. The stock's GF Value™ is ฿1.38, compared to a current price of ฿1.15 — trading 16.7% below its estimated fair value. The current Volatility is 14.43%. Siam Technic Concrete PCL's overall GF Score™ is 82/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Volatility calculated?
Volatility is calculated from a company's financial statements. For Siam Technic Concrete PCL (BKK:STECH), the current Volatility is 14.43% 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 Siam Technic Concrete PCL (BKK:STECH) Overvalued in 2026?
Based on GuruFocus' analysis, Siam Technic Concrete PCL stock appears to be undervalued.
The current stock price of ฿1.15 is trading 16.7% below its estimated GF Value™ of ฿1.38.
GuruFocus considers Siam Technic Concrete PCL to be Modestly Undervalued.
Key valuation signals for BKK:STECH:
Volatility: 14.43%
GF Value™: ฿1.38 vs. price of ฿1.15 (16.7% below fair value)
No single metric tells the full story. See the BKK:STECH stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Siam Technic Concrete PCL is engaged in the manufacture of prestressed concrete products and construction contractor service. The firm has two reportable segments namely Sale of goods and services and Construction. The company generates the majority of its revenue from the Sale of goods and service segments. The Company is managed and operates principally in Thailand.
82GF Score
Get the complete analysis for BKK:STECH
Volatility is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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