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.
As of today (2026-06-27), PT Indosat Tbk's Volatility is 38.75%.
PT Indosat Tbk (ISX:ISAT) 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.
PT Indosat Tbk Volatility Related Terms
ISX:ISAT vs TMUS, VZ, T: Volatility Comparison
For the Telecom Services subindustry, PT Indosat Tbk'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.
PT Indosat Tbk Volatility vs Telecommunication Services Industry
For the Telecommunication Services industry and Communication Services sector, PT Indosat Tbk's Volatility distribution charts can be found below:
* The bar in red indicates where PT Indosat Tbk's Volatility falls into.
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.
PT Indosat Tbk (ISX:ISAT) has a Volatility of 38.75% as of Jun. 27, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on PT Indosat Tbk and its competitors.
Is PT Indosat Tbk's Volatility too high?
PT Indosat Tbk's current Volatility is 38.75%. Overall, PT Indosat Tbk has a GF Score™ of 89/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does PT Indosat Tbk's Volatility compare to TMUS and VZ?
PT Indosat Tbk's Volatility of 38.75% can be compared against companies in the Telecommunication Services 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 Telecommunication Services company?
A good Volatility depends on the Telecommunication Services 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 PT Indosat Tbk and its competitors. PT Indosat Tbk's current Volatility is 38.75%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is PT Indosat Tbk stock overvalued right now?
Based on GuruFocus' analysis, PT Indosat Tbk (ISX:ISAT) is currently considered Possible Value Trap. The stock's GF Value™ is Rp2,552.32, compared to a current price of Rp1,750.00 — trading 31.4% below its estimated fair value. The current Volatility is 38.75%. PT Indosat Tbk's overall GF Score™ is 89/100 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 PT Indosat Tbk (ISX:ISAT), the current Volatility is 38.75% as of Jun. 27, 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 PT Indosat Tbk (ISX:ISAT) Overvalued in 2026?
Based on GuruFocus' analysis, PT Indosat Tbk stock appears to be undervalued.
The current stock price of Rp1,750.00 is trading 31.4% below its estimated GF Value™ of Rp2,552.32.
GuruFocus considers PT Indosat Tbk to be Possible Value Trap.
Key valuation signals for ISX:ISAT:
Volatility: 38.75%
GF Value™: Rp2,552.32 vs. price of Rp1,750.00 (31.4% below fair value)
No single metric tells the full story. See the ISX:ISAT stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
PT Indosat Tbk is the provider of international long-distance and wireless services in Indonesia. The company operates under three reportable segments: Cellular, Midi and Fixed Telecommunication segment. Cellular, providing network coverage in all cities across Indonesia; fixed telecommunications, which provides services such as international calls and fixed lines; and multimedia interactive, data and internet, which offers products such as fixed connectivity, IT service and fixed Internet. The Cellular segment provides majority of the company's revenue.
89GF Score
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