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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.
Sun Brothers Development Co (ROCO:3489) 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.
Sun Brothers Development Co Volatility Related Terms
Sun Brothers Development Co Volatility Competitor Comparison
For the Real Estate - Development subindustry, Sun Brothers Development 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.
Sun Brothers Development Co Volatility vs Real Estate Industry
For the Real Estate industry and Real Estate sector, Sun Brothers Development Co's Volatility distribution charts can be found below:
* The bar in red indicates where Sun Brothers Development Co's Volatility falls into.
Sun Brothers Development Co (ROCO:3489) 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.
Sun Brothers Development Co (ROCO:3489) has a Volatility of 42.92% as of Jul. 14, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on Sun Brothers Development Co and its competitors.
Is Sun Brothers Development Co's Volatility too high?
Sun Brothers Development Co's current Volatility is 42.92%. Overall, Sun Brothers Development Co has a GF Score™ of 52/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sun Brothers Development Co's Volatility compare to competitors?
Sun Brothers Development Co's Volatility of 42.92% can be compared against companies in the Real Estate 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 Real Estate company?
A good Volatility depends on the Real Estate 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 Sun Brothers Development Co and its competitors. Sun Brothers Development Co's current Volatility is 42.92%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sun Brothers Development Co stock overvalued right now?
Based on GuruFocus' analysis, Sun Brothers Development Co (ROCO:3489) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$9.16, compared to a current price of NT$19.85 — trading 116.7% above its estimated fair value. The current Volatility is 42.92%. Sun Brothers Development Co's overall GF Score™ is 52/100 with 9 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 Sun Brothers Development Co (ROCO:3489), the current Volatility is 42.92% as of Jul. 14, 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 Sun Brothers Development Co (ROCO:3489) Overvalued in 2026?
Based on GuruFocus' analysis, Sun Brothers Development Co stock appears to be overvalued.
The current stock price of NT$19.85 is trading 116.7% above its estimated GF Value™ of NT$9.16.
GuruFocus considers Sun Brothers Development Co to be Significantly Overvalued.
Key valuation signals for ROCO:3489:
Volatility: 42.92%
GF Value™: NT$9.16 vs. price of NT$19.85 (116.7% above fair value)
No single metric tells the full story. See the ROCO:3489 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Sun Brothers Development Co Ltd is engaged in wholesale of building materials, developing, constructing, leasing and selling for residential, commercial or industrial buildings and others. It is also involved in the development and construction of collective housing and public works contract construction. The company's segments are: Real property section, and Construction section. It derives revenue from Construction segment.
52GF Score
Get the complete analysis for ROCO:3489
Volatility is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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