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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.
Datang International Power Generation Co (STU:BJI) 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.
Datang International Power Generation Co Volatility Related Terms
STU:BJI vs CEG, VST, NRG: Volatility Comparison
For the Utilities - Independent Power Producers subindustry, Datang International Power Generation 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.
Datang International Power Generation Co Volatility vs Utilities - Independent Power Producers Industry
For the Utilities - Independent Power Producers industry and Utilities sector, Datang International Power Generation Co's Volatility distribution charts can be found below:
* The bar in red indicates where Datang International Power Generation Co's Volatility falls into.
Datang International Power Generation Co (STU:BJI) 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.
Datang International Power Generation Co (STU:BJI) has a Volatility of 39.57% as of Aug. 05, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on Datang International Power Generation Co and its competitors.
Is Datang International Power Generation Co's Volatility too high?
Datang International Power Generation Co's current Volatility is 39.57%. Overall, Datang International Power Generation Co has a GF Score™ of 49/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Datang International Power Generation Co's Volatility compare to CEG and VST?
Datang International Power Generation Co's Volatility of 39.57% can be compared against companies in the Utilities - Independent Power Producers 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 Utilities - Independent Power Producers company?
A good Volatility depends on the Utilities - Independent Power Producers 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 Datang International Power Generation Co and its competitors. Datang International Power Generation Co's current Volatility is 39.57%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Datang International Power Generation Co stock overvalued right now?
Based on GuruFocus' analysis, Datang International Power Generation Co (STU:BJI) is currently considered Modestly Overvalued. The stock's GF Value™ is €0.24, compared to a current price of €0.28 — trading 17.5% above its estimated fair value. The current Volatility is 39.57%. Datang International Power Generation Co's overall GF Score™ is 49/100 with 5 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 Datang International Power Generation Co (STU:BJI), the current Volatility is 39.57% as of Aug. 05, 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 Datang International Power Generation Co (STU:BJI) Overvalued in 2026?
Based on GuruFocus' analysis, Datang International Power Generation Co stock appears to be overvalued.
The current stock price of €0.28 is trading 17.5% above its estimated GF Value™ of €0.24.
GuruFocus considers Datang International Power Generation Co to be Modestly Overvalued.
Key valuation signals for STU:BJI:
Volatility: 39.57%
GF Value™: €0.24 vs. price of €0.28 (17.5% above fair value)
No single metric tells the full story. See the STU:BJI stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Datang International Power Generation Co Ltd is one of five state-controlled independent power producers in China. The power generation businesses of the Company and its subsidiaries cover provinces, municipalities, and autonomous regions across the country, whereas the coal-fired power generators of the Company are centralized in the Beijing-Tianjin-Hebei and southeast coastal regions. The majority of the hydropower projects are located in the southwest region. Wind power and photovoltaic power projects are distributed across the country in areas with abundant resources. The operating segments of the company are the Power and heat generation segment and the Other segments.
49GF Score
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