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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.
Gallant Micro Machining Co (ROCO:6640) 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.
Gallant Micro Machining Co Volatility Related Terms
ROCO:6640 vs LRCX, AMAT, KLAC: Volatility Comparison
For the Semiconductor Equipment & Materials subindustry, Gallant Micro Machining 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.
Gallant Micro Machining Co Volatility vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Gallant Micro Machining Co's Volatility distribution charts can be found below:
* The bar in red indicates where Gallant Micro Machining Co's Volatility falls into.
Gallant Micro Machining Co (ROCO:6640) 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.
Gallant Micro Machining Co (ROCO:6640) has a Volatility of 90.30% as of Sep. 05, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on Gallant Micro Machining Co and its competitors.
Is Gallant Micro Machining Co's Volatility too high?
Gallant Micro Machining Co's current Volatility is 90.30%. Overall, Gallant Micro Machining Co has a GF Score™ of 94/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Gallant Micro Machining Co's Volatility compare to LRCX and AMAT?
Gallant Micro Machining Co's Volatility of 90.30% can be compared against companies in the Semiconductors 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 Semiconductors company?
A good Volatility depends on the Semiconductors 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 Gallant Micro Machining Co and its competitors. Gallant Micro Machining Co's current Volatility is 90.30%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Gallant Micro Machining Co stock overvalued right now?
Based on GuruFocus' analysis, Gallant Micro Machining Co (ROCO:6640) is currently considered Modestly Overvalued. The stock's GF Value™ is NT$967.13, compared to a current price of NT$1,250.00 — trading 29.2% above its estimated fair value. The current Volatility is 90.30%. Gallant Micro Machining Co's overall GF Score™ is 94/100 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 Gallant Micro Machining Co (ROCO:6640), the current Volatility is 90.30% as of Sep. 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 Gallant Micro Machining Co (ROCO:6640) Overvalued in 2026?
Based on GuruFocus' analysis, Gallant Micro Machining Co stock appears to be overvalued.
The current stock price of NT$1,250.00 is trading 29.2% above its estimated GF Value™ of NT$967.13.
GuruFocus considers Gallant Micro Machining Co to be Modestly Overvalued.
Key valuation signals for ROCO:6640:
Volatility: 90.30%
GF Value™: NT$967.13 vs. price of NT$1,250.00 (29.2% above fair value)
No single metric tells the full story. See the ROCO:6640 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Gallant Micro Machining Co Ltd is a Taiwan based system supplier for electronics and semiconductors. The business of the company is the production and sales of machinery and equipment, precision molds and other parts and components. The company operates in Taiwan, China and other regions.
94GF Score
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