Sunmax Biotechnology Co (ROCO:4728) Volatility: 10.41% (As of Jul. 13, 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:4728 Sunmax Biotechnology Co Ltd ROCO:4728
91 GF Score
Price NT$381.00
GF Value NT$441.22
Valuation Modestly Undervalued
! 3 Warning Signs
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What is Sunmax Biotechnology Co Volatility?

Sunmax Biotechnology Co ROCO:4728 +1.06% 91 Volatility is 10.41% as of Jul. 13, 2026. GuruFocus rates ROCO:4728 with a GF Score™ of 91/100 and a GF Value™ of NT$441.22 (Modestly Undervalued). The stock has 3 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 (2026-07-13), Sunmax Biotechnology Co's Volatility is 10.41%.


Sunmax Biotechnology Co  (ROCO:4728) 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.


Sunmax Biotechnology Co Volatility Related Terms


ROCO:4728 vs VRTX, REGN, ALNY: Volatility Comparison

For the Biotechnology subindustry, Sunmax Biotechnology 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.


Sunmax Biotechnology Co Volatility vs Biotechnology Industry

For the Biotechnology industry and Healthcare sector, Sunmax Biotechnology Co's Volatility distribution charts can be found below:

* The bar in red indicates where Sunmax Biotechnology Co's Volatility falls into.


ROCO:4728
91GF Score
Sunmax Biotechnology Co Ltd ROCO:4728
Volatility is just one metric. See GF Score™, valuation, warning signs, and more.
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Sunmax Biotechnology Co  (ROCO:4728) 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 10.41% mean?
Sunmax Biotechnology Co (ROCO:4728) has a Volatility of 10.41% as of Jul. 13, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on Sunmax Biotechnology Co and its competitors.
Is Sunmax Biotechnology Co's Volatility too high?
Sunmax Biotechnology Co's current Volatility is 10.41%. Overall, Sunmax Biotechnology Co has a GF Score™ of 91/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Sunmax Biotechnology Co's Volatility compare to VRTX and REGN?
Sunmax Biotechnology Co's Volatility of 10.41% can be compared against companies in the Biotechnology 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 Biotechnology company?
A good Volatility depends on the Biotechnology 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 Sunmax Biotechnology Co and its competitors. Sunmax Biotechnology Co's current Volatility is 10.41%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sunmax Biotechnology Co stock overvalued right now?
Based on GuruFocus' analysis, Sunmax Biotechnology Co (ROCO:4728) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$441.22, compared to a current price of NT$381.00 — trading 13.6% below its estimated fair value. The current Volatility is 10.41%. Sunmax Biotechnology Co's overall GF Score™ is 91/100 with 3 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 Sunmax Biotechnology Co (ROCO:4728), the current Volatility is 10.41% as of Jul. 13, 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 Sunmax Biotechnology Co (ROCO:4728) Overvalued in 2026?

Based on GuruFocus' analysis, Sunmax Biotechnology Co stock appears to be undervalued. The current stock price of NT$381.00 is trading 13.6% below its estimated GF Value™ of NT$441.22. GuruFocus considers Sunmax Biotechnology Co to be Modestly Undervalued.

Key valuation signals for ROCO:4728:

  • Volatility: 10.41%
  • GF Value™: NT$441.22 vs. price of NT$381.00 (13.6% below fair value)
  • GF Score™: 91/100 with 3 warning signs

No single metric tells the full story. See the ROCO:4728 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Sunmax Biotechnology Co Business Description

Address Huandong Road, New Urban District, 1st Floor, No. 10, Lane 31, Section 1, Tainan Science Industrial Park, Tainan, TWN
Sunmax Biotechnology Co Ltd is a biomedical company in Taiwan. It is engaged in the development, manufacturing, and commercialization of Sunmax medical devices and bio-surgical products. Additionally, it also researches, develops, manufactures and sales biomedical material grade collagen and related products. The company's products include medical products, biomedical materials, and porcine collagen skin care products.
91GF Score

Get the complete analysis for ROCO:4728

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

NT$381.00
Price
NT$441.22
GF Value