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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.
Sinopec Oilfield Service (OTCPK:YZCFF) 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.
Sinopec Oilfield Service Volatility Related Terms
YZCFF vs NE, RIG, VAL: Volatility Comparison
For the Oil & Gas Drilling subindustry, Sinopec Oilfield Service'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.
Sinopec Oilfield Service Volatility vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Sinopec Oilfield Service's Volatility distribution charts can be found below:
* The bar in red indicates where Sinopec Oilfield Service's Volatility falls into.
Sinopec Oilfield Service (OTCPK:YZCFF) 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.
Sinopec Oilfield Service (YZCFF) has a Volatility of 92.51% as of Jul. 31, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on Sinopec Oilfield Service and its competitors.
Is Sinopec Oilfield Service's Volatility too high?
Sinopec Oilfield Service's current Volatility is 92.51%. Overall, Sinopec Oilfield Service has a GF Score™ of 70/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Sinopec Oilfield Service's Volatility compare to NE and RIG?
Sinopec Oilfield Service's Volatility of 92.51% can be compared against companies in the Oil & Gas 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 Oil & Gas company?
A good Volatility depends on the Oil & Gas 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 Sinopec Oilfield Service and its competitors. Sinopec Oilfield Service's current Volatility is 92.51%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sinopec Oilfield Service stock overvalued right now?
Based on GuruFocus' analysis, Sinopec Oilfield Service (YZCFF) is currently considered Modestly Undervalued. The stock's GF Value™ is $0.10, compared to a current price of $0.08 — trading 16.7% below its estimated fair value. The current Volatility is 92.51%. Sinopec Oilfield Service's overall GF Score™ is 70/100 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 Sinopec Oilfield Service (YZCFF), the current Volatility is 92.51% as of Jul. 31, 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 Sinopec Oilfield Service (YZCFF) Overvalued in 2026?
Based on GuruFocus' analysis, Sinopec Oilfield Service stock appears to be undervalued.
The current stock price of $0.08 is trading 16.7% below its estimated GF Value™ of $0.10.
GuruFocus considers Sinopec Oilfield Service to be Modestly Undervalued.
Key valuation signals for YZCFF:
Volatility: 92.51%
GF Value™: $0.10 vs. price of $0.08 (16.7% below fair value)
No single metric tells the full story. See the YZCFF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Sinopec Oilfield Service Corp engages in the provision of onshore and offshore oil and natural gas, exploration, provision of contracting, design, and construction services for the oil and gas projects. It operates through five segments: Geophysics, which provides technical and development, exploration geophysical services; Drilling engineering segment, which provides drilling design, and construction, technical services; Logging and mud logging segment; Special downhole segment, which provides oil engineering technical and construction services; and Engineering construction segment, which provides a package of services, including feasibility studies, procurement, and others. Its geographical segments are, The PRC, Middle East and Other countries.
70GF Score
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