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Turkcell Iletisim Hizmetleri ASIST:TCELL -3.30%92 Cyclically Adjusted PB Ratio is 3.07 as of Jul. 19, 2026, which is 35% above its 10-year median of 2.27. GuruFocus rates IST:TCELL with a GF Score™ of 92/100 and a GF Value™ of ₺106.39 (Fairly Valued). The stock has 5 warning signs investors should review. Among 289 Telecommunication Services companies, Turkcell Iletisim Hizmetleri AS ranks worse than 69.9% on this metric.
The historical rank and industry rank for Turkcell Iletisim Hizmetleri AS's Cyclically Adjusted PB Ratio or its related term are showing as below:
IST:TCELL'
s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 1.67 Med: 2.27 Max: 6.65
Current: 3.07
During the past years, Turkcell Iletisim Hizmetleri AS's highest Cyclically Adjusted PB Ratio was 6.65. The lowest was 1.67. And the median was 2.27.
IST:TCELL's Cyclically Adjusted PB Ratio is ranked worse than 69.9% of 289
companies
in the Telecommunication Services industry
Industry Median: 1.79
vs IST:TCELL: 3.07
The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.
Turkcell Iletisim Hizmetleri AS's adjusted book value per share data for the three months ended in Mar. 2026 was ₺133.663. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is ₺35.30 for the trailing ten years ended in Mar. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Turkcell Iletisim Hizmetleri AS (IST:TCELL) Cyclically Adjusted PB Ratio Explanation
Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.
Turkcell Iletisim Hizmetleri AS Cyclically Adjusted PB Ratio Related Terms
Turkcell Iletisim Hizmetleri AS Cyclically Adjusted PB Ratio Historical Data
* 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.
Turkcell Iletisim Hizmetleri AS Cyclically Adjusted PB Ratio Chart
IST:TCELL vs TMUS, VZ, T: Cyclically Adjusted PB Ratio Comparison
For the Telecom Services subindustry, Turkcell Iletisim Hizmetleri AS's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB Ratio 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.
Turkcell Iletisim Hizmetleri AS Cyclically Adjusted PB Ratio vs Telecommunication Services Industry
For the Telecommunication Services industry and Communication Services sector, Turkcell Iletisim Hizmetleri AS's Cyclically Adjusted PB Ratio distribution charts can be found below:
* The bar in red indicates where Turkcell Iletisim Hizmetleri AS's Cyclically Adjusted PB Ratio falls into.
Turkcell Iletisim Hizmetleri AS Cyclically Adjusted PB Ratio Calculation
Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.
* 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.
Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.
What does a Cyclically Adjusted PB Ratio of 3.07 mean?
Turkcell Iletisim Hizmetleri AS (IST:TCELL) has a Cyclically Adjusted PB Ratio of 3.07 as of Jul. 19, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Turkcell Iletisim Hizmetleri AS and its competitors. This is 35% above median its historical median of 2.27. Over the past decade, Turkcell Iletisim Hizmetleri AS's Cyclically Adjusted PB Ratio has ranged from 1.67 to 6.65. According to the industry distribution chart, Turkcell Iletisim Hizmetleri AS ranks #202 out of 289 companies in the Telecommunication Services industry, placing it in the top 69.9%.
Is Turkcell Iletisim Hizmetleri AS's Cyclically Adjusted PB Ratio too high?
Turkcell Iletisim Hizmetleri AS's current Cyclically Adjusted PB Ratio of 3.07 is 35% above median its 10-year median of 2.27. Over the past 10 years, this metric has ranged from a low of 1.67 to a high of 6.65. The Telecommunication Services industry median Cyclically Adjusted PB Ratio is 1.79. Turkcell Iletisim Hizmetleri AS's value of 3.07 is 71.5% above this industry median. Based on the distribution chart, Turkcell Iletisim Hizmetleri AS ranks #202 out of 289 companies in the Telecommunication Services industry, which is below the industry midpoint. Overall, Turkcell Iletisim Hizmetleri AS has a GF Score™ of 92/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Turkcell Iletisim Hizmetleri AS's Cyclically Adjusted PB Ratio compare to TMUS and VZ?
According to the Telecommunication Services industry distribution chart, Turkcell Iletisim Hizmetleri AS ranks #202 out of 289 companies for Cyclically Adjusted PB Ratio. This places Turkcell Iletisim Hizmetleri AS in the lower half of its industry. The industry median Cyclically Adjusted PB Ratio is 1.79. Turkcell Iletisim Hizmetleri AS's value of 3.07 is 71.5% above this benchmark. Historically, Turkcell Iletisim Hizmetleri AS's own Cyclically Adjusted PB Ratio has ranged from 1.67 to 6.65 over the past decade. While the company's 10-year median is 2.27 vs. the industry median of 1.79, Turkcell Iletisim Hizmetleri AS 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 Cyclically Adjusted PB Ratio for a Telecommunication Services company?
The median Cyclically Adjusted PB Ratio among Telecommunication Services companies is 1.79, based on 289 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Turkcell Iletisim Hizmetleri AS's current Cyclically Adjusted PB Ratio of 3.07 is 71.5% 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 Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Turkcell Iletisim Hizmetleri AS and its competitors. For the Telecommunication Services industry, the median Cyclically Adjusted PB Ratio is 1.79 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Turkcell Iletisim Hizmetleri AS's current Cyclically Adjusted PB Ratio is 3.07, which is 35% above median its own 10-year median of 2.27. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Turkcell Iletisim Hizmetleri AS stock overvalued right now?
Based on GuruFocus' analysis, Turkcell Iletisim Hizmetleri AS (IST:TCELL) is currently considered Fairly Valued. The stock's GF Value™ is ₺106.39, compared to a current price of ₺108.50 — trading 2% above its estimated fair value. The current Cyclically Adjusted PB Ratio is 3.07, which is 35% above median its 10-year median of 2.27 and 71.5% above the Telecommunication Services industry median of 1.79. Turkcell Iletisim Hizmetleri AS's overall GF Score™ is 92/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For Turkcell Iletisim Hizmetleri AS (IST:TCELL), the current Cyclically Adjusted PB Ratio is 3.07 as of Jul. 19, 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 Turkcell Iletisim Hizmetleri AS (IST:TCELL) Overvalued in 2026?
Based on GuruFocus' analysis, Turkcell Iletisim Hizmetleri AS stock appears to be overvalued.
The current stock price of ₺108.50 is trading 2% above its estimated GF Value™ of ₺106.39.
GuruFocus considers Turkcell Iletisim Hizmetleri AS to be Fairly Valued.
Key valuation signals for IST:TCELL:
Cyclically Adjusted PB Ratio: 3.07 (35% above median its 10-year median of 2.27)
GF Value™: ₺106.39 vs. price of ₺108.50 (2% above fair value)
Industry Position: 71.5% above the Telecommunication Services median (#202 of 289)
No single metric tells the full story. See the IST:TCELL stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Turkcell Iletisim Hizmetleri AS Business Description
Turkcell Iletisim Hizmetleri AS provides mobile telephone services in Turkey. The firm's services portfolio includes mobile and fixed voice, data, TV, and digital services over its network. The firm also operates in the Turkish Republic of Northern Cyprus, Belarus, the Netherlands, and Ukraine. It has three main reportable segments: Turkcell Turkiye, Techfin, and Other. The Turkcell Turkiye segment, which derives the majority of revenue, comprises mainly telecommunication and technology services activities.
92GF Score
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