Zen Voce (ROCO:3581) Volatility: 177.49% (As of Jul. 19, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
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.
Reviewed by: Charlie Tian Charlie Tian
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:3581 Zen Voce Corp ROCO:3581
56 GF Score
Price NT$115.50
GF Value NT$38.01
Valuation Significantly Overvalued
! 2 Warning Signs
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What is Zen Voce Volatility?

Zen Voce ROCO:3581 -6.48% 56 Volatility is 177.49% as of Jul. 19, 2026. GuruFocus rates ROCO:3581 with a GF Score™ of 56/100 and a GF Value™ of NT$38.01 (Significantly Overvalued). The stock has 2 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 (2026-07-19), Zen Voce's Volatility is 177.49%.


Zen Voce  (ROCO:3581) 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.


Zen Voce Volatility Related Terms


ROCO:3581 vs NVDA, AVGO, MU: Volatility Comparison

For the Semiconductors subindustry, Zen Voce'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.


Zen Voce Volatility vs Semiconductors Industry

For the Semiconductors industry and Technology sector, Zen Voce's Volatility distribution charts can be found below:

* The bar in red indicates where Zen Voce's Volatility falls into.


ROCO:3581
56GF Score
Zen Voce Corp ROCO:3581
Volatility is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Zen Voce  (ROCO:3581) 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 177.49% mean?
Zen Voce (ROCO:3581) has a Volatility of 177.49% as of Jul. 19, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on Zen Voce and its competitors.
Is Zen Voce's Volatility too high?
Zen Voce's current Volatility is 177.49%. Overall, Zen Voce has a GF Score™ of 56/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Zen Voce's Volatility compare to NVDA and AVGO?
Zen Voce's Volatility of 177.49% 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 Zen Voce and its competitors. Zen Voce's current Volatility is 177.49%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Zen Voce stock overvalued right now?
Based on GuruFocus' analysis, Zen Voce (ROCO:3581) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$38.01, compared to a current price of NT$115.50 — trading 203.9% above its estimated fair value. The current Volatility is 177.49%. Zen Voce's overall GF Score™ is 56/100 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 Zen Voce (ROCO:3581), the current Volatility is 177.49% as of Jul. 19, 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 Zen Voce (ROCO:3581) Overvalued in 2026?

Based on GuruFocus' analysis, Zen Voce stock appears to be overvalued. The current stock price of NT$115.50 is trading 203.9% above its estimated GF Value™ of NT$38.01. GuruFocus considers Zen Voce to be Significantly Overvalued.

Key valuation signals for ROCO:3581:

  • Volatility: 177.49%
  • GF Value™: NT$38.01 vs. price of NT$115.50 (203.9% above fair value)
  • GF Score™: 56/100 with 2 warning signs

No single metric tells the full story. See the ROCO:3581 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Zen Voce Business Description

Address No. 53, Jinggong Road, Sinfong Township, Hsinchu, TWN, 30441
Zen Voce Corp is a Taiwan based company engaged in the business of providing semiconductor, optoelectronics and MEMS and LCD's equipment. It offers equipment products which include IC packaging machine design and manufacture of bumping, wafer cutting machine and cleaning machine design and manufacturing, and board cutting machine and cleaning machine design and manufacturing. The test products provided by the company includes Wafer test probe card PCB design and manufacturing, IC test HIFIX and CHANG KIT design and manufacturing, SOCKET IC design and manufacturing test, Acting IC HANDLER, and Acting SOCKET IC burn-in test.
56GF Score

Get the complete analysis for ROCO:3581

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

NT$115.50
Price
NT$38.01
GF Value