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.
Sunflex Technology Volatility Related Terms
ROCO:3390 vs APH, GLW: Volatility Comparison
For the Electronic Components subindustry, Sunflex Technology'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.
Sunflex Technology Volatility vs Hardware Industry
For the Hardware industry and Technology sector, Sunflex Technology's Volatility distribution charts can be found below:
* The bar in red indicates where Sunflex Technology'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.
Sunflex Technology (ROCO:3390) has a Volatility of 38.79% as of Jul. 07, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on Sunflex Technology and its competitors.
Is Sunflex Technology's Volatility too high?
Sunflex Technology's current Volatility is 38.79%. Overall, Sunflex Technology has a GF Score™ of 62/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sunflex Technology's Volatility compare to APH and GLW?
Sunflex Technology's Volatility of 38.79% can be compared against companies in the Hardware 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 Hardware company?
A good Volatility depends on the Hardware 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 Sunflex Technology and its competitors. Sunflex Technology's current Volatility is 38.79%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sunflex Technology stock overvalued right now?
Based on GuruFocus' analysis, Sunflex Technology (ROCO:3390) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$19.99, compared to a current price of NT$27.00 — trading 35.1% above its estimated fair value. The current Volatility is 38.79%. Sunflex Technology's overall GF Score™ is 62/100 with 6 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 Sunflex Technology (ROCO:3390), the current Volatility is 38.79% as of Jul. 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 Sunflex Technology (ROCO:3390) Overvalued in 2026?
Based on GuruFocus' analysis, Sunflex Technology stock appears to be overvalued.
The current stock price of NT$27.00 is trading 35.1% above its estimated GF Value™ of NT$19.99.
GuruFocus considers Sunflex Technology to be Significantly Overvalued.
Key valuation signals for ROCO:3390:
Volatility: 38.79%
GF Value™: NT$19.99 vs. price of NT$27.00 (35.1% above fair value)
No single metric tells the full story. See the ROCO:3390 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Sunflex Technology Corp is the manufacture of electronic components and international trades. It provides single and double-sided flexible PCBs that are applied in the manufacturing of mobile phones, notebook computers, disk players, and LCDs. The company applications include touch panels, liquid crystal module, computer accessories, and a light bar. The Company's operating revenue is mainly derived from the production and sales of customized flexible circuit boards.
62GF Score
Get the complete analysis for ROCO:3390
Volatility is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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