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.
Oil & Natural Gas (NSE:ONGC) 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.
Oil & Natural Gas Volatility Related Terms
NSE:ONGC vs XOM, CVX: Volatility Comparison
For the Oil & Gas Integrated subindustry, Oil & Natural Gas'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.
Oil & Natural Gas Volatility vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Oil & Natural Gas's Volatility distribution charts can be found below:
* The bar in red indicates where Oil & Natural Gas's Volatility falls into.
Oil & Natural Gas (NSE:ONGC) 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.
Oil & Natural Gas (NSE:ONGC) has a Volatility of 20.66% as of Jun. 26, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on Oil & Natural Gas and its competitors.
Is Oil & Natural Gas' Volatility too high?
Oil & Natural Gas' current Volatility is 20.66%. Overall, Oil & Natural Gas has a GF Score™ of 88/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Oil & Natural Gas' Volatility compare to XOM and CVX?
Oil & Natural Gas' Volatility of 20.66% 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 Oil & Natural Gas and its competitors. Oil & Natural Gas's current Volatility is 20.66%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Oil & Natural Gas stock overvalued right now?
Based on GuruFocus' analysis, Oil & Natural Gas (NSE:ONGC) is currently considered Modestly Undervalued. The stock's GF Value™ is ₹268.77, compared to a current price of ₹233.10 — trading 13.3% below its estimated fair value. The current Volatility is 20.66%. Oil & Natural Gas' overall GF Score™ is 88/100 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 Oil & Natural Gas (NSE:ONGC), the current Volatility is 20.66% as of Jun. 26, 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 Oil & Natural Gas (NSE:ONGC) Overvalued in 2026?
Based on GuruFocus' analysis, Oil & Natural Gas stock appears to be undervalued.
The current stock price of ₹233.10 is trading 13.3% below its estimated GF Value™ of ₹268.77.
GuruFocus considers Oil & Natural Gas to be Modestly Undervalued.
Key valuation signals for NSE:ONGC:
Volatility: 20.66%
GF Value™: ₹268.77 vs. price of ₹233.10 (13.3% below fair value)
No single metric tells the full story. See the NSE:ONGC stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Oil & Natural Gas Corp Ltd is an Indian-based company. It engaged in the exploration, development, and production of crude oil, natural gas, and value-added products. Along with its subsidiaries, the company operates in the following business segments: Refining and Marketing, which derives maximum revenue, Exploration and Production, and Petrochemicals. Geographically, the group derives maximum revenue from India, from its offshore and onshore activities, and is also involved in exploration and production activities outside India.
88GF Score
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