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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 Environmental Technology Holdings (HKSE:00646) 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 Environmental Technology Holdings Volatility Related Terms
HKSE:00646 vs WM, RSG, WCN: Volatility Comparison
For the Waste Management subindustry, China Environmental Technology 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 Environmental Technology Holdings Volatility vs Waste Management Industry
China Environmental Technology Holdings (HKSE:00646) 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 Environmental Technology Holdings (HKSE:00646) has a Volatility of 33.43% as of Aug. 19, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on China Environmental Technology Holdings and its competitors.
Is China Environmental Technology Holdings' Volatility too high?
China Environmental Technology Holdings' current Volatility is 33.43%. Overall, China Environmental Technology Holdings has a GF Score™ of 9/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does China Environmental Technology Holdings' Volatility compare to WM and RSG?
China Environmental Technology Holdings' Volatility of 33.43% can be compared against companies in the Waste Management 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 Waste Management company?
A good Volatility depends on the Waste Management 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 Environmental Technology Holdings and its competitors. China Environmental Technology Holdings's current Volatility is 33.43%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is China Environmental Technology Holdings stock overvalued right now?
Based on GuruFocus' analysis, China Environmental Technology Holdings (HKSE:00646) is currently considered Possible Value Trap. The stock's GF Value™ is HK$0.19, compared to a current price of HK$0.13 — trading 31.6% below its estimated fair value. The current Volatility is 33.43%. China Environmental Technology Holdings' overall GF Score™ is 9/100 with 8 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 China Environmental Technology Holdings (HKSE:00646), the current Volatility is 33.43% as of Aug. 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 China Environmental Technology Holdings (HKSE:00646) Overvalued in 2026?
Based on GuruFocus' analysis, China Environmental Technology Holdings stock appears to be undervalued.
The current stock price of HK$0.13 is trading 31.6% below its estimated GF Value™ of HK$0.19.
GuruFocus considers China Environmental Technology Holdings to be Possible Value Trap.
Key valuation signals for HKSE:00646:
Volatility: 33.43%
GF Value™: HK$0.19 vs. price of HK$0.13 (31.6% below fair value)
No single metric tells the full story. See the HKSE:00646 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
China Environmental Technology Holdings Ltd is engaged in the environmental protection business, including trading of machinery and equipment, environmental protection technology, equipment system integration, cities and towns wastewater treatment and project technical service, and health-related products and services. It operates through three segments: the Wastewater Treatment segment, which generates key revenue and engages in the provision of wastewater treatment plants construction and operation services, as well as the trading of wastewater treatment facilities and machinery, and the provision of related services; the Healthcare segment and the Energy management segment. Geographically, the company generates the majority of its revenue from the PRC.
9GF Score
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