Millicom International Cellular (STU:M4M1) Volatility: 23.86% (As of Jul. 30, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
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Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

STU:M4M1 Millicom International Cellular SA STU:M4M1
63 GF Score
Price €82.00
GF Value €29.76
Valuation Significantly Overvalued
! 10 Warning Signs
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What is Millicom International Cellular Volatility?

Millicom International Cellular STU:M4M1 -1.80% 63 Volatility is 23.86% as of Jul. 30, 2026. GuruFocus rates STU:M4M1 with a GF Score™ of 63/100 and a GF Value™ of €29.76 (Significantly Overvalued). The stock has 10 warning signs investors should review.

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 (2026-07-30), Millicom International Cellular's Volatility is 23.86%.


Millicom International Cellular  (STU:M4M1) 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.


Millicom International Cellular Volatility Related Terms


STU:M4M1 vs CHTR, GSAT, LUMN: Volatility Comparison

For the Telecom Services subindustry, Millicom International Cellular'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.


Millicom International Cellular Volatility vs Telecommunication Services Industry

For the Telecommunication Services industry and Communication Services sector, Millicom International Cellular's Volatility distribution charts can be found below:

* The bar in red indicates where Millicom International Cellular's Volatility falls into.


STU:M4M1
63GF Score
Millicom International Cellular SA STU:M4M1
Volatility is just one metric. See GF Score™, valuation, warning signs, and more.
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Millicom International Cellular  (STU:M4M1) 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.

Frequently Asked Questions Learn more about Volatility →
What does a Volatility of 23.86% mean?
Millicom International Cellular (STU:M4M1) has a Volatility of 23.86% as of Jul. 30, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on Millicom International Cellular and its competitors.
Is Millicom International Cellular's Volatility too high?
Millicom International Cellular's current Volatility is 23.86%. Overall, Millicom International Cellular has a GF Score™ of 63/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Millicom International Cellular's Volatility compare to CHTR and GSAT?
Millicom International Cellular's Volatility of 23.86% 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 Millicom International Cellular and its competitors. Millicom International Cellular's current Volatility is 23.86%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Millicom International Cellular stock overvalued right now?
Based on GuruFocus' analysis, Millicom International Cellular (STU:M4M1) is currently considered Significantly Overvalued. The stock's GF Value™ is €29.76, compared to a current price of €82.00 — trading 175.5% above its estimated fair value. The current Volatility is 23.86%. Millicom International Cellular's overall GF Score™ is 63/100 with 10 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 Millicom International Cellular (STU:M4M1), the current Volatility is 23.86% as of Jul. 30, 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 Millicom International Cellular (STU:M4M1) Overvalued in 2026?

Based on GuruFocus' analysis, Millicom International Cellular stock appears to be overvalued. The current stock price of €82.00 is trading 175.5% above its estimated GF Value™ of €29.76. GuruFocus considers Millicom International Cellular to be Significantly Overvalued.

Key valuation signals for STU:M4M1:

  • Volatility: 23.86%
  • GF Value™: €29.76 vs. price of €82.00 (175.5% above fair value)
  • GF Score™: 63/100 with 10 warning signs

No single metric tells the full story. See the STU:M4M1 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Millicom International Cellular Business Description

Other Exchanges TIGO:USAM4M1:Germany
Address 8400 NW 36th Street, Suite 530, Doral, FL, USA, 33166
Millicom offers wireless and fixed-line telecom services primarily in smaller, less developed countries in Latin America. Countries served include Bolivia, Nicaragua, Panama, El Salvador, Guatemala, Paraguay, Colombia, Ecuador, Uruguay, and Honduras (67% but not controlled or consolidated in the firm's financial statements). The firm's wireless networks cover about 145 million people, serving nearly 60 million customers. Its fixed-line networks reach 22 million homes, serving about 5.6 million broadband customers. Increasingly, Millicom offers converged packages that include broadband with wireless services. The firm also formed a joint venture to acquire Telefónica's operations in Chile.
63GF Score

Get the complete analysis for STU:M4M1

Volatility is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€82.00
Price
€29.76
GF Value