Bright Sheland International Co (ROCO:4556) Volatility: 88.99% (As of Aug. 01, 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.
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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:4556 Bright Sheland International Co Ltd ROCO:4556
59 GF Score
Price NT$79.20
GF Value NT$35.18
Valuation Significantly Overvalued
! 2 Warning Signs
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What is Bright Sheland International Co Volatility?

Bright Sheland International Co ROCO:4556 -7.37% 59 Volatility is 88.99% as of Aug. 01, 2026. GuruFocus rates ROCO:4556 with a GF Score™ of 59/100 and a GF Value™ of NT$35.18 (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 (2026-08-01), Bright Sheland International Co's Volatility is 88.99%.


Bright Sheland International Co  (ROCO:4556) 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.


Bright Sheland International Co Volatility Related Terms


ROCO:4556 vs VLTO, ZWS, CECO: Volatility Comparison

For the Pollution & Treatment Controls subindustry, Bright Sheland International 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.


Bright Sheland International Co Volatility vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, Bright Sheland International Co's Volatility distribution charts can be found below:

* The bar in red indicates where Bright Sheland International Co's Volatility falls into.


ROCO:4556
59GF Score
Bright Sheland International Co Ltd ROCO:4556
Volatility is just one metric. See GF Score™, valuation, warning signs, and more.
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Bright Sheland International Co  (ROCO:4556) 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 88.99% mean?
Bright Sheland International Co (ROCO:4556) has a Volatility of 88.99% as of Aug. 01, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on Bright Sheland International Co and its competitors.
Is Bright Sheland International Co's Volatility too high?
Bright Sheland International Co's current Volatility is 88.99%. Overall, Bright Sheland International 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 Bright Sheland International Co's Volatility compare to VLTO and ZWS?
Bright Sheland International Co's Volatility of 88.99% can be compared against companies in the Industrial Products 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 an Industrial Products company?
A good Volatility depends on the Industrial Products 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 Bright Sheland International Co and its competitors. Bright Sheland International Co's current Volatility is 88.99%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Bright Sheland International Co stock overvalued right now?
Based on GuruFocus' analysis, Bright Sheland International Co (ROCO:4556) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$35.18, compared to a current price of NT$79.20 — trading 125.1% above its estimated fair value. The current Volatility is 88.99%. Bright Sheland International Co's overall GF Score™ is 59/100 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 Bright Sheland International Co (ROCO:4556), the current Volatility is 88.99% as of Aug. 01, 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 Bright Sheland International Co (ROCO:4556) Overvalued in 2026?

Based on GuruFocus' analysis, Bright Sheland International Co stock appears to be overvalued. The current stock price of NT$79.20 is trading 125.1% above its estimated GF Value™ of NT$35.18. GuruFocus considers Bright Sheland International Co to be Significantly Overvalued.

Key valuation signals for ROCO:4556:

  • Volatility: 88.99%
  • GF Value™: NT$35.18 vs. price of NT$79.20 (125.1% above fair value)
  • GF Score™: 59/100 with 2 warning signs

No single metric tells the full story. See the ROCO:4556 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Bright Sheland International Co Business Description

Address No. 15, Kejia 6th Road, Yunlin Science and Technology Industrial Zone, Yunlin County, Douliu, TWN, 640-57
Bright Sheland International Co Ltd is a Taiwan-based company focused on industrial filtration and separation systems. The products of the company include Cartridges and Housing, Melt Blown Cartridges, Winding Cartridges, Activated Carbon Filter Cartridges, and Glass Fiber Filter Cartridges among others.
59GF Score

Get the complete analysis for ROCO:4556

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

NT$79.20
Price
NT$35.18
GF Value