PT Indosat TbkFRA:IDO1 +2.99%89 Operating Margin % is 20.56% as of Mar. 2026, which is 62% above its 10-year median of 12.70. GuruFocus rates FRA:IDO1 with a GF Score™ of 89/100 and a GF Value™ of €0.09 (Modestly Undervalued). The stock has 2 warning signs investors should review. Among 367 Telecommunication Services companies, PT Indosat Tbk ranks better than 75.48% on this metric.
PT Indosat Tbk operating margin is expanding. Margin expansion is usually a good sign.
The historical rank and industry rank for PT Indosat Tbk's Operating Margin % or its related term are showing as below:
FRA:IDO1'
s Operating Margin % Range Over the Past 10 Years
Min: -7.56 Med: 12.7 Max: 20.24
Current: 20.24
FRA:IDO1's Operating Margin % is ranked better than 75.48% of 367
companies
in the Telecommunication Services industry
Industry Median: 9.73
vs FRA:IDO1: 20.24
PT Indosat Tbk's 5-Year Average Operating Margin % Growth Rate was 28.00% per year.
Just like Gross Margin %, it is important to see a company maintains its operating margin over time. Among the same industry, a company with higher operating margin is more efficient in its operation. It is also more stable during industry slowdown or recessions. Peter Lynch prefers those with higher margins than those with lower margins.
Be Aware
Operating Margin % can be manipulated by adjusting the rate of depreciation, depletion and amortization (DDA).
If a company is facing competition, its Operating Margin % may decline. Often the Operating Margin % declines well before the company's Revenue or even profit decline. Therefore, Operating Margin % is a very important indicator of whether the company is facing problems.
For instance, by 2012, Nokia (NOK)'s problems were well known and its stock had lost more than 90% of its market value since 2007. But Nokias Operating Margin % had already been in decline since 2002, although its Earnings per Share (Diluted) were still rising. Investors who paid attention to Operating Margin % would have avoided this huge loss. The same can be said for Research-in-Motion (RIMM).
Therefore, Operating Margin % is a very important screening filter for GuruFocus. GuruFocus's Buffett-Munger screener requires that the profit margin is either consistent or expanding. The Model Portfolio of the Buffett-Munger screener has outperformed the market every year since inception in 2009.
PT Indosat Tbk Operating Margin % Related Terms
PT Indosat Tbk Operating Margin % Historical Data
* Premium members only.
The historical data trend for PT Indosat Tbk's Operating Margin % can be seen below:
* 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.
FRA:IDO1 vs TMUS, VZ, T: Operating Margin % Comparison
For the Telecom Services subindustry, PT Indosat Tbk's Operating Margin %, along with its competitors' market caps and Operating Margin % 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 Operating Margin % vs Telecommunication Services Industry
For the Telecommunication Services industry and Communication Services sector, PT Indosat Tbk's Operating Margin % distribution charts can be found below:
* The bar in red indicates where PT Indosat Tbk's Operating Margin % falls into.
Operating Margin % - also known as operating income margin, operating profit margin and return on sales (ROS) - is the ratio of Operating Income divided by net sales or Revenue, usually presented in percent.
PT Indosat Tbk's Operating Margin % for the fiscal year that ended in Dec. 2025 is calculated as
* 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 (FRA:IDO1) has a Operating Margin % of 20.56% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on PT Indosat Tbk and its competitors. This is 62% above median its historical median of 12.70. According to the industry distribution chart, PT Indosat Tbk ranks #90 out of 367 companies in the Telecommunication Services industry, placing it in the top 24.5%.
Is PT Indosat Tbk's Operating Margin % too high?
PT Indosat Tbk's current Operating Margin % of 20.56% is 62% above median its 10-year median of 12.70. The Telecommunication Services industry median Operating Margin % is 9.73. PT Indosat Tbk's value of 20.56% is 111.3% above this industry median. Based on the distribution chart, PT Indosat Tbk ranks #90 out of 367 companies in the Telecommunication Services industry, which is in the top quartile — a strong position relative to peers. Overall, PT Indosat Tbk has a GF Score™ of 89/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does PT Indosat Tbk's Operating Margin % compare to TMUS and VZ?
According to the Telecommunication Services industry distribution chart, PT Indosat Tbk ranks #90 out of 367 companies for Operating Margin %. This places PT Indosat Tbk in the top 25% of its industry — outperforming the majority of peers. The industry median Operating Margin % is 9.73. PT Indosat Tbk's value of 20.56% is 111.3% above this benchmark. While the company's 10-year median is 12.70 vs. the industry median of 9.73, PT Indosat Tbk has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Operating Margin % for a Telecommunication Services company?
The median Operating Margin % among Telecommunication Services companies is 9.73, based on 367 companies in the industry. Companies in the top quartile (top 25%) have a Operating Margin % significantly above this median, while those in the bottom quartile fall well below. However, Operating Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. PT Indosat Tbk's current Operating Margin % of 20.56% is 111.3% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Operating Margin % mean?
A high Operating Margin % can signal that a stock is expensive relative to its fundamentals. Operating margin is the ratio of total operating income to net sales. View historical data on PT Indosat Tbk and its competitors. For the Telecommunication Services industry, the median Operating Margin % is 9.73 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. PT Indosat Tbk's current Operating Margin % is 20.56%, which is 62% above median its own 10-year median of 12.70. 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 (FRA:IDO1) is currently considered Modestly Undervalued. The stock's GF Value™ is €0.09, compared to a current price of €0.07 — trading 23.3% below its estimated fair value. The current Operating Margin % is 20.56%, which is 62% above median its 10-year median of 12.70 and 111.3% above the Telecommunication Services industry median of 9.73. 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 Operating Margin % calculated?
Operating Margin % is calculated from a company's financial statements. For PT Indosat Tbk (FRA:IDO1), the current Operating Margin % is 20.56% as of Mar. 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 (FRA:IDO1) Overvalued in 2026?
Based on GuruFocus' analysis, PT Indosat Tbk stock appears to be undervalued.
The current stock price of €0.07 is trading 23.3% below its estimated GF Value™ of €0.09.
GuruFocus considers PT Indosat Tbk to be Modestly Undervalued.
Key valuation signals for FRA:IDO1:
Operating Margin %: 20.56% (62% above median its 10-year median of 12.70)
GF Value™: €0.09 vs. price of €0.07 (23.3% below fair value)
Industry Position: 111.3% above the Telecommunication Services median (#90 of 367)
No single metric tells the full story. See the FRA:IDO1 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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