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.
ArcelorMittal South Africa (STU:ISC1) 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.
ArcelorMittal South Africa Volatility Related Terms
STU:ISC1 vs NUE, STLD, RS: Volatility Comparison
For the Steel subindustry, ArcelorMittal South Africa'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.
ArcelorMittal South Africa Volatility vs Steel Industry
For the Steel industry and Basic Materials sector, ArcelorMittal South Africa's Volatility distribution charts can be found below:
* The bar in red indicates where ArcelorMittal South Africa's Volatility falls into.
ArcelorMittal South Africa (STU:ISC1) 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.
ArcelorMittal South Africa (STU:ISC1) has a Volatility of 58.06% 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 ArcelorMittal South Africa and its competitors.
Is ArcelorMittal South Africa's Volatility too high?
ArcelorMittal South Africa's current Volatility is 58.06%. Overall, ArcelorMittal South Africa has a GF Score™ of 54/100, reflecting its overall financial health beyond just this single metric.
How does ArcelorMittal South Africa's Volatility compare to NUE and STLD?
ArcelorMittal South Africa's Volatility of 58.06% 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 ArcelorMittal South Africa and its competitors. ArcelorMittal South Africa's current Volatility is 58.06%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is ArcelorMittal South Africa stock overvalued right now?
ArcelorMittal South Africa (STU:ISC1) has a current Volatility of 58.06%. The stock's GF Value™ is €0.06, compared to a current price of €0.06 — trading 0.8% above its estimated fair value. The current Volatility is 58.06%. ArcelorMittal South Africa's overall GF Score™ is 54/100 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 ArcelorMittal South Africa (STU:ISC1), the current Volatility is 58.06% 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 ArcelorMittal South Africa (STU:ISC1) Overvalued in 2026?
Based on GuruFocus' analysis, ArcelorMittal South Africa stock appears to be overvalued.
The current stock price of €0.06 is trading 0.8% above its estimated GF Value™ of €0.06.
Key valuation signals for STU:ISC1:
Volatility: 58.06%
GF Value™: €0.06 vs. price of €0.06 (0.8% above fair value)
No single metric tells the full story. See the STU:ISC1 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
ArcelorMittal South Africa Ltd is a South Africa-based steel-producing company. The company's operating segments include Steel operations; Non-steel operations; Corporate and others. It generates the majority of total revenue from the Steel Operations segment that consist of Vanderbijlpark plant, Newcastle plant, Vereeniging plant and ArcelorMittal Rail and Structures. The product range consists of hot-rolled coil, plate, coiled rounds, flats, reinforced bars, rounds, billets and channels, and commercial coke among others. The group operates mainly in South Africa. Export sales are mostly sold in sub-Saharan Africa, Asia, Europe, and America.
54GF Score
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