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.
Jiu Han System Technology Co (ROCO:6903) Volatility Explanation
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.
Jiu Han System Technology Co Volatility Related Terms
ROCO:6903 vs PWR, FIX, EME: Volatility Comparison
For the Engineering & Construction subindustry, Jiu Han System Technology Co'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.
Jiu Han System Technology Co Volatility vs Construction Industry
For the Construction industry and Industrials sector, Jiu Han System Technology Co's Volatility distribution charts can be found below:
* The bar in red indicates where Jiu Han System Technology Co's Volatility falls into.
Jiu Han System Technology Co (ROCO:6903) Volatility Calculation
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.
Jiu Han System Technology Co (ROCO:6903) has a Volatility of 75.92% as of Jun. 28, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on Jiu Han System Technology Co and its competitors.
Is Jiu Han System Technology Co's Volatility too high?
Jiu Han System Technology Co's current Volatility is 75.92%. Overall, Jiu Han System Technology Co has a GF Score™ of 55/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Jiu Han System Technology Co's Volatility compare to PWR and FIX?
Jiu Han System Technology Co's Volatility of 75.92% can be compared against companies in the Construction 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 Construction company?
A good Volatility depends on the Construction 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 Jiu Han System Technology Co and its competitors. Jiu Han System Technology Co's current Volatility is 75.92%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Jiu Han System Technology Co stock overvalued right now?
Based on GuruFocus' analysis, Jiu Han System Technology Co (ROCO:6903) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$151.20, compared to a current price of NT$369.50 — trading 144.4% above its estimated fair value. The current Volatility is 75.92%. Jiu Han System Technology Co's overall GF Score™ is 55/100 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 Jiu Han System Technology Co (ROCO:6903), the current Volatility is 75.92% as of Jun. 28, 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 Jiu Han System Technology Co (ROCO:6903) Overvalued in 2026?
Based on GuruFocus' analysis, Jiu Han System Technology Co stock appears to be overvalued.
The current stock price of NT$369.50 is trading 144.4% above its estimated GF Value™ of NT$151.20.
GuruFocus considers Jiu Han System Technology Co to be Significantly Overvalued.
Key valuation signals for ROCO:6903:
Volatility: 75.92%
GF Value™: NT$151.20 vs. price of NT$369.50 (144.4% above fair value)
No single metric tells the full story. See the ROCO:6903 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Jiu Han System Technology Co Ltd is engaged in business projects such as water, electricity, air conditioning engineering, fire safety equipment installation engineering, and pipe fitting engineering. The company also engages in the design and installation of engineering, instruments and meters, as well as the sale and purchase of related materials.
55GF Score
Get the complete analysis for ROCO:6903
Volatility is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
ROCO:6903 has been successfully added to your 