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.
Companhia Siderurgica Nacional (NYSE:SID) 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.
Companhia Siderurgica Nacional Volatility Related Terms
SID vs NUE, STLD, RS: Volatility Comparison
For the Steel subindustry, Companhia Siderurgica Nacional'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.
Companhia Siderurgica Nacional Volatility vs Steel Industry
For the Steel industry and Basic Materials sector, Companhia Siderurgica Nacional's Volatility distribution charts can be found below:
* The bar in red indicates where Companhia Siderurgica Nacional's Volatility falls into.
Companhia Siderurgica Nacional (NYSE:SID) 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.
Companhia Siderurgica Nacional (SID) has a Volatility of 45.13% as of Jun. 24, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on Companhia Siderurgica Nacional and its competitors.
Is Companhia Siderurgica Nacional's Volatility too high?
Companhia Siderurgica Nacional's current Volatility is 45.13%. Overall, Companhia Siderurgica Nacional has a GF Score™ of 63/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Companhia Siderurgica Nacional's Volatility compare to NUE and STLD?
Companhia Siderurgica Nacional's Volatility of 45.13% can be compared against companies in the Steel 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 Steel company?
A good Volatility depends on the Steel 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 Companhia Siderurgica Nacional and its competitors. Companhia Siderurgica Nacional's current Volatility is 45.13%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Companhia Siderurgica Nacional stock overvalued right now?
Based on GuruFocus' analysis, Companhia Siderurgica Nacional (SID) is currently considered Possible Value Trap. The stock's GF Value™ is $2.24, compared to a current price of $0.98 — trading 56.3% below its estimated fair value. The current Volatility is 45.13%. Companhia Siderurgica Nacional's overall GF Score™ is 63/100 with 7 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 Companhia Siderurgica Nacional (SID), the current Volatility is 45.13% as of Jun. 24, 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 Companhia Siderurgica Nacional (SID) Overvalued in 2026?
Based on GuruFocus' analysis, Companhia Siderurgica Nacional stock appears to be undervalued.
The current stock price of $0.98 is trading 56.3% below its estimated GF Value™ of $2.24.
GuruFocus considers Companhia Siderurgica Nacional to be Possible Value Trap.
Key valuation signals for SID:
Volatility: 45.13%
GF Value™: $2.24 vs. price of $0.98 (56.3% below fair value)
No single metric tells the full story. See the SID stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Companhia Siderurgica Nacional Business Description
Companhia Siderurgica Nacional is an integrated steel producer. together with its subsidiaries operates in five main business segments: Steel industry: production and marketing of flat and long steels; Mining: extraction, processing and marketing of iron ore, tin, limestone and dolomite; Cement: production and commercialization of bagged and bulk cement, in addition to aggregates, concrete, and other related products; Energy: generation and sale of energy from almost all renewable sources; and Logistics: participations port concessions and fleets of road transport vehicles. The group generates the majority of its revenue from the Steel industry segment. Geographically, it derives a majority of revenue from Asia.
63GF Score
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