Eiso Enterprise Co (ROCO:5291) Volatility: 76.01% (As of Jul. 16, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
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Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

ROCO:5291 Eiso Enterprise Co Ltd ROCO:5291
59 GF Score
Price NT$53.00
GF Value NT$25.87
Valuation Significantly Overvalued
! 6 Warning Signs
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What is Eiso Enterprise Co Volatility?

Eiso Enterprise Co ROCO:5291 -1.12% 59 Volatility is 76.01% as of Jul. 16, 2026. GuruFocus rates ROCO:5291 with a GF Score™ of 59/100 and a GF Value™ of NT$25.87 (Significantly Overvalued). The stock has 6 warning signs investors should review.

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.

As of today (2026-07-16), Eiso Enterprise Co's Volatility is 76.01%.


Eiso Enterprise Co  (ROCO:5291) 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.


Eiso Enterprise Co Volatility Related Terms


ROCO:5291 vs APH, GLW: Volatility Comparison

For the Electronic Components subindustry, Eiso Enterprise 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.


Eiso Enterprise Co Volatility vs Hardware Industry

For the Hardware industry and Technology sector, Eiso Enterprise Co's Volatility distribution charts can be found below:

* The bar in red indicates where Eiso Enterprise Co's Volatility falls into.


ROCO:5291
59GF Score
Eiso Enterprise Co Ltd ROCO:5291
Volatility is just one metric. See GF Score™, valuation, warning signs, and more.
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Eiso Enterprise Co  (ROCO:5291) 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.

Frequently Asked Questions Learn more about Volatility →
What does a Volatility of 76.01% mean?
Eiso Enterprise Co (ROCO:5291) has a Volatility of 76.01% as of Jul. 16, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on Eiso Enterprise Co and its competitors.
Is Eiso Enterprise Co's Volatility too high?
Eiso Enterprise Co's current Volatility is 76.01%. Overall, Eiso Enterprise Co has a GF Score™ of 59/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Eiso Enterprise Co's Volatility compare to APH and GLW?
Eiso Enterprise Co's Volatility of 76.01% 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 Eiso Enterprise Co and its competitors. Eiso Enterprise Co's current Volatility is 76.01%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Eiso Enterprise Co stock overvalued right now?
Based on GuruFocus' analysis, Eiso Enterprise Co (ROCO:5291) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$25.87, compared to a current price of NT$53.00 — trading 104.9% above its estimated fair value. The current Volatility is 76.01%. Eiso Enterprise Co's overall GF Score™ is 59/100 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 Eiso Enterprise Co (ROCO:5291), the current Volatility is 76.01% as of Jul. 16, 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 Eiso Enterprise Co (ROCO:5291) Overvalued in 2026?

Based on GuruFocus' analysis, Eiso Enterprise Co stock appears to be overvalued. The current stock price of NT$53.00 is trading 104.9% above its estimated GF Value™ of NT$25.87. GuruFocus considers Eiso Enterprise Co to be Significantly Overvalued.

Key valuation signals for ROCO:5291:

  • Volatility: 76.01%
  • GF Value™: NT$25.87 vs. price of NT$53.00 (104.9% above fair value)
  • GF Score™: 59/100 with 6 warning signs

No single metric tells the full story. See the ROCO:5291 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Eiso Enterprise Co Business Description

Address Number 2, Zhonghua Lane, Shanying Road, Shanfengli, Guishan District, Taoyuan, TWN
Eiso Enterprise Co Ltd is a Taiwan-based company involved in the development of printed circuit boards and high-precision production equipment. The company is also engaged in manufacturing LED products.
59GF Score

Get the complete analysis for ROCO:5291

Volatility is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$53.00
Price
NT$25.87
GF Value