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.
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.
Turkiye Garanti Bankasi ASIST:GARAN -1.07%61 Peter Lynch Fair Value is ₺659.40 as of Aug. 14, 2026, which is 100% below its 10-year median of 0.19. GuruFocus rates IST:GARAN with a GF Score™ of 61/100 and a GF Value™ of ₺180.01 (Modestly Undervalued). The stock has 3 warning signs investors should review. Among 888 Banks companies, Turkiye Garanti Bankasi AS ranks better than 97.3% on this metric.
Peter Lynch Fair Value applies to growing companies. The ideal range for the growth rate is between 10 - 20% a year. Peter Lynch thinks that the fair P/E value for a growth company equals its growth rate, that is PEG = 1. The earnings here is trailing twelve month (TTM) earnings. For non-bank companies, the growth rate we use is the average growth rate for EBITDA per share over the past 5 years. For Banks, the growth rate we use is the average growth rate for Book Value per share over the past 5 years. If 5-Year Growth Rate is greater than 25% a year, we use 25. If 5-Year Growth Rate is smaller than 5% a year, we do not calculate Peter Lynch Fair Value.
Here, as of today, Turkiye Garanti Bankasi AS's PEG is 1. Turkiye Garanti Bankasi AS's 5-Year TTM Book Value Growth Rate is 25.
Turkiye Garanti Bankasi AS's EPS without NRI for the trailing twelve months (TTM) ended in Jun. 2026 was ₺26.38. Therefore, the Peter Lynch Fair Value for today is ₺659.40.
The historical rank and industry rank for Turkiye Garanti Bankasi AS's Peter Lynch Fair Value or its related term are showing as below:
IST:GARAN'
s Price-to-Peter-Lynch-Fair-Value Range Over the Past 10 Years
Min: 0.08 Med: 0.19 Max: 0.23
Current: 0.18
During the past 13 years, the highest Price to Peter Lynch Fair Value Ratio of Turkiye Garanti Bankasi AS was 0.23. The lowest was 0.08. And the median was 0.19.
IST:GARAN's Price-to-Peter-Lynch-Fair-Value is ranked better than 97.3% of 888
companies
in the Banks industry
Industry Median: 1.12
vs IST:GARAN: 0.18
Note: Please don't confuse Peter Lynch Fair Value with the value reached in Peter Lynch Chart.
Turkiye Garanti Bankasi AS (IST:GARAN) Peter Lynch Fair Value Explanation
Peter Lynch Fair Value applies to growing companies. The ideal range for the growth rate is between 10 - 20% a year.
Peter Lynch thinks that the fair P/E value for a growth company equals its growth rate, that is PEG = 1. The earnings here is trailing twelve month (TTM) earnings. For non-bank companies, the growth rate we use is the average growth rate for EBITDA per share over the past 5 years. For Banks, the growth rate we use is the average growth rate for Book Value per share over the past 5 years.
Please don't confuse Peter Lynch Fair Value with the value reached in Peter Lynch Chart. In Peter Lynch chart, a fixed P/E ratio of 15 is used to draw the Earnings Line. Therefore the value reached has a P/E ratio of 15. But in Peter Lynch Fair Value calculation, P/E equals to the growth rate of Book Value per share over the past 5 years, which is 25 instead of 15 in this case.
Turkiye Garanti Bankasi AS's Price to Peter Lynch Fair Value Ratio for today is calculated as
Price to Peter Lynch Fair Value
=
Share Price
/
Peter Lynch Fair Value
=
129.60
/
659.40
=
0.20
* 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.
Turkiye Garanti Bankasi AS Peter Lynch Fair Value Related Terms
Turkiye Garanti Bankasi AS Peter Lynch Fair Value 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.
Turkiye Garanti Bankasi AS Peter Lynch Fair Value Chart
Turkiye Garanti Bankasi AS Peter Lynch Fair Value Competitor Comparison
For the Banks - Regional subindustry, Turkiye Garanti Bankasi AS's Price-to-Peter-Lynch-Fair-Value, along with its competitors' market caps and Price-to-Peter-Lynch-Fair-Value 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.
Turkiye Garanti Bankasi AS Price-to-Peter-Lynch-Fair-Value vs Banks Industry
For the Banks industry and Financial Services sector, Turkiye Garanti Bankasi AS's Price-to-Peter-Lynch-Fair-Value distribution charts can be found below:
* The bar in red indicates where Turkiye Garanti Bankasi AS's Price-to-Peter-Lynch-Fair-Value falls into.
Turkiye Garanti Bankasi AS's EPS without NRI for the trailing twelve months (TTM) uses the latest annual data, which was ₺26.38.
* Note that for companies that do not have enough quarterly data to calculate the 5-Year TTM EBITDA Growth Rate, we use the annual data for the calculation.
* 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 be aware that the 5-Year TTM Book Value Growth Rate is calculated based on TTM data over the last 5 years. For quarterly reported companies, the TTM data is the latest quarter data. For companies that report semi-annually, annually, or do not have enough quarterly data, GuruFocus uses the annual data as the TTM data.
If 5-Year Earnings Growth Rate is greater than 25% a year, we use 25.
If 5-Year Earnings Growth Rate is smaller than 5% a year, we do not calculate Peter Lynch Fair Value.
Please note that we use the 5-year average growth rate of EBITDA per share as the growth rate for non-bank companies, as EBITDA growth is subject to less manipulations than net earnings per share. For banks, we use the 5-year average growth rate of Book Value per share as the growth rate. The reason is that EBITDA is not applicable to Banks and Book value is a relative important measurement for Banks. In the calculation, PEG=1 because Peter Lynch thinks that the fair P/E ratio of the growth stock is equal to its earnings growth rate.
What does a Peter Lynch Fair Value of ₺659.40 mean?
Turkiye Garanti Bankasi AS (IST:GARAN) has a Peter Lynch Fair Value of ₺659.40 as of Aug. 14, 2026. Peter Lynch Fair Value is the stock value based on a company's current earnings and five-year earnings growth, assuming a PEG of one. View historical data on Turkiye Garanti Bankasi AS and its competitors. This is 346953% above median its historical median of 0.19. Over the past decade, Turkiye Garanti Bankasi AS's Peter Lynch Fair Value has ranged from 0.08 to 0.23. According to the industry distribution chart, Turkiye Garanti Bankasi AS ranks #24 out of 888 companies in the Banks industry, placing it in the top 2.7%.
Is Turkiye Garanti Bankasi AS's Peter Lynch Fair Value too high?
Turkiye Garanti Bankasi AS's current Peter Lynch Fair Value of ₺659.40 is 346953% above median its 10-year median of 0.19. Over the past 10 years, this metric has ranged from a low of 0.08 to a high of 0.23. Based on the distribution chart, Turkiye Garanti Bankasi AS ranks #24 out of 888 companies in the Banks industry, which is in the top quartile — a strong position relative to peers. Overall, Turkiye Garanti Bankasi AS has a GF Score™ of 61/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Turkiye Garanti Bankasi AS's Peter Lynch Fair Value compare to competitors?
According to the Banks industry distribution chart, Turkiye Garanti Bankasi AS ranks #24 out of 888 companies for Peter Lynch Fair Value. This places Turkiye Garanti Bankasi AS in the top 3% of its industry — outperforming the majority of peers. The industry median Peter Lynch Fair Value is 1.12. Historically, Turkiye Garanti Bankasi AS's own Peter Lynch Fair Value has ranged from 0.08 to 0.23 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Peter Lynch Fair Value for a Banks company?
The median Peter Lynch Fair Value among Banks companies is 1.12, based on 888 companies in the industry. Companies in the top quartile (top 25%) have a Peter Lynch Fair Value significantly above this median, while those in the bottom quartile fall well below. However, Peter Lynch Fair Value 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 Peter Lynch Fair Value mean?
A high Peter Lynch Fair Value can signal that a stock is expensive relative to its fundamentals. Peter Lynch Fair Value is the stock value based on a company's current earnings and five-year earnings growth, assuming a PEG of one. View historical data on Turkiye Garanti Bankasi AS and its competitors. For the Banks industry, the median Peter Lynch Fair Value is 1.12 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Turkiye Garanti Bankasi AS's current Peter Lynch Fair Value is ₺659.40, which is 346953% above median its own 10-year median of 0.19. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Turkiye Garanti Bankasi AS stock overvalued right now?
Based on GuruFocus' analysis, Turkiye Garanti Bankasi AS (IST:GARAN) is currently considered Modestly Undervalued. The stock's GF Value™ is ₺180.01, compared to a current price of ₺129.60 — trading 28% below its estimated fair value. The current Peter Lynch Fair Value is ₺659.40, which is 346953% above median its 10-year median of 0.19. Turkiye Garanti Bankasi AS's overall GF Score™ is 61/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Peter Lynch Fair Value calculated?
Peter Lynch Fair Value is calculated from a company's financial statements. For Turkiye Garanti Bankasi AS (IST:GARAN), the current Peter Lynch Fair Value is ₺659.40 as of Aug. 14, 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 Turkiye Garanti Bankasi AS (IST:GARAN) Overvalued in 2026?
Based on GuruFocus' analysis, Turkiye Garanti Bankasi AS stock appears to be undervalued.
The current stock price of ₺129.60 is trading 28% below its estimated GF Value™ of ₺180.01.
GuruFocus considers Turkiye Garanti Bankasi AS to be Modestly Undervalued.
Key valuation signals for IST:GARAN:
Peter Lynch Fair Value: ₺659.40 (346953% above median its 10-year median of 0.19)
GF Value™: ₺180.01 vs. price of ₺129.60 (28% below fair value)
No single metric tells the full story. See the IST:GARAN stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Turkiye Garanti Bankasi AS is an integrated financial services group operating predominantly in Turkey but with subsidiaries in the Netherlands, Russia, and Romania. It is a full-service bank offering corporate, commercial, retail, private, small to midsize enterprise, and investment banking services. Other financial services include insurance, leasing, brokerage, and asset management services. The bank's plan emphasizes customer service. The vast majority of its earning assets consist of loans, with a dominant positioning in consumer loans, mortgages, and auto loans. The company's business segments include: Retail Banking, Corporate Banking, Investment Banking and Others.
61GF Score
Get the complete analysis for IST:GARAN
Peter Lynch Fair Value is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
IST:GARAN has been successfully added to your 
