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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.
China Dredging Environment Protection Holdings (HKSE:00871) 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.
China Dredging Environment Protection Holdings Volatility Related Terms
HKSE:00871 vs PWR, FIX, EME: Volatility Comparison
For the Engineering & Construction subindustry, China Dredging Environment Protection Holdings'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.
China Dredging Environment Protection Holdings Volatility vs Construction Industry
China Dredging Environment Protection Holdings (HKSE:00871) 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.
China Dredging Environment Protection Holdings (HKSE:00871) has a Volatility of 47.63% as of Aug. 11, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on China Dredging Environment Protection Holdings and its competitors.
Is China Dredging Environment Protection Holdings' Volatility too high?
China Dredging Environment Protection Holdings' current Volatility is 47.63%.
How does China Dredging Environment Protection Holdings' Volatility compare to PWR and FIX?
China Dredging Environment Protection Holdings' Volatility of 47.63% can be compared against companies in the Construction 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 Construction company?
A good Volatility depends on the Construction 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 China Dredging Environment Protection Holdings and its competitors. China Dredging Environment Protection Holdings's current Volatility is 47.63%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is China Dredging Environment Protection Holdings stock overvalued right now?
Based on GuruFocus' analysis, China Dredging Environment Protection Holdings (HKSE:00871) is currently considered Modestly Undervalued. The stock's GF Value™ is HK$0.06, compared to a current price of HK$0.05 — trading 18.3% below its estimated fair value. The current Volatility is 47.63%. 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 China Dredging Environment Protection Holdings (HKSE:00871), the current Volatility is 47.63% as of Aug. 11, 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.
China Dredging Environment Protection Holdings Ltd is an investment holding company. Through its subsidiaries, it is engaged in the provision of dredging and water management services, the provision of marine hoisting, installation, and other engineering services. It operates in four reportable segments: Capital and Reclamation Dredging Business; Environmental Protection Dredging and Water Management Business; Other Marine Business; and Property Management Business. The group generates the majority of its revenue from Other Marine Business, which mainly comprises marine hoisting, installation, salvaging, vessel chartering, and other engineering services. It derives revenue from the transfer of goods and services in geographical markets from Mainland China and Other countries and regions.
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