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.
IST:PRKME's Shiller PE Ratio is ranked worse than 93.67% of 79
companies
in the Other Energy Sources industry
Industry Median: 12.59
vs IST:PRKME: 238.90
E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.
Park Elektrik Uretim Madenciliknayi ve Ticaret AS's adjusted earnings per share data for the three months ended in Jun. 2026 was ₺-1.361. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is ₺0.08 for the trailing ten years ended in Jun. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Park Elektrik Uretim Madenciliknayi ve Ticaret AS (IST:PRKME) Shiller PE Ratio Explanation
Compared with the regular PE Ratio, which works poorly for cyclical businesses, the Shiller PE Ratio smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Shiller PE Ratio should give similar results to regular PE Ratio.
Compared with the PS Ratio, the Shiller PE Ratio makes the comparison between different industries more meaningful.
Be Aware
Shiller PE Ratio assumes that over the long term, businesses and profitability revert to their means. If a company's business model does not work in the future compared with the past, Shiller PE Ratio and PS Ratio will give false valuations.
Park Elektrik Uretim Madenciliknayi ve Ticaret AS Shiller PE Ratio Related Terms
Park Elektrik Uretim Madenciliknayi ve Ticaret AS Shiller PE 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.
Park Elektrik Uretim Madenciliknayi ve Ticaret AS Shiller PE Ratio Chart
Park Elektrik Uretim Madenciliknayi ve Ticaret AS Annual Data
* 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.
Park Elektrik Uretim Madenciliknayi ve Ticaret AS Shiller PE Ratio vs Other Energy Sources Industry
Park Elektrik Uretim Madenciliknayi ve Ticaret AS Shiller PE Ratio Calculation
For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller PE Ratio is also called PE10.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.
* 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.
Add all the adjusted EPS together and divide 10 will get our E10.
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.
Park Elektrik Uretim Madenciliknayi ve Ticaret AS (IST:PRKME) has a Shiller PE Ratio of 239.25 as of Sep. 08, 2026. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on Park Elektrik Uretim Madenciliknayi ve Ticaret AS and its competitors. This is 1234% above median its historical median of 17.93. Over the past decade, Park Elektrik Uretim Madenciliknayi ve Ticaret AS's Shiller PE Ratio has ranged from 5.59 to 286.50. According to the industry distribution chart, Park Elektrik Uretim Madenciliknayi ve Ticaret AS ranks #74 out of 79 companies in the Other Energy Sources industry, placing it in the top 93.7%.
Is Park Elektrik Uretim Madenciliknayi ve Ticaret AS's Shiller PE Ratio too high?
Park Elektrik Uretim Madenciliknayi ve Ticaret AS's current Shiller PE Ratio of 239.25 is 1234% above median its 10-year median of 17.93. Over the past 10 years, this metric has ranged from a low of 5.59 to a high of 286.50. The Other Energy Sources industry median Shiller PE Ratio is 12.59. Park Elektrik Uretim Madenciliknayi ve Ticaret AS's value of 239.25 is 1800.3% above this industry median. Based on the distribution chart, Park Elektrik Uretim Madenciliknayi ve Ticaret AS ranks #74 out of 79 companies in the Other Energy Sources industry, which is in the bottom quartile relative to peers. Overall, Park Elektrik Uretim Madenciliknayi ve Ticaret AS has a GF Score™ of 63/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Park Elektrik Uretim Madenciliknayi ve Ticaret AS's Shiller PE Ratio compare to CNR?
According to the Other Energy Sources industry distribution chart, Park Elektrik Uretim Madenciliknayi ve Ticaret AS ranks #74 out of 79 companies for Shiller PE Ratio. This places Park Elektrik Uretim Madenciliknayi ve Ticaret AS in the lower half of its industry. The industry median Shiller PE Ratio is 12.59. Park Elektrik Uretim Madenciliknayi ve Ticaret AS's value of 239.25 is 1800.3% above this benchmark. Historically, Park Elektrik Uretim Madenciliknayi ve Ticaret AS's own Shiller PE Ratio has ranged from 5.59 to 286.50 over the past decade. While the company's 10-year median is 17.93 vs. the industry median of 12.59, Park Elektrik Uretim Madenciliknayi ve Ticaret 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 Shiller PE Ratio for an Other Energy Sources company?
The median Shiller PE Ratio among Other Energy Sources companies is 12.59, based on 79 companies in the industry. Companies in the top quartile (top 25%) have a Shiller PE Ratio significantly above this median, while those in the bottom quartile fall well below. However, Shiller PE Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Park Elektrik Uretim Madenciliknayi ve Ticaret AS's current Shiller PE Ratio of 239.25 is 1800.3% 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 Shiller PE Ratio mean?
A high Shiller PE Ratio can signal that a stock is expensive relative to its fundamentals. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on Park Elektrik Uretim Madenciliknayi ve Ticaret AS and its competitors. For the Other Energy Sources industry, the median Shiller PE Ratio is 12.59 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Park Elektrik Uretim Madenciliknayi ve Ticaret AS's current Shiller PE Ratio is 239.25, which is 1234% above median its own 10-year median of 17.93. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Park Elektrik Uretim Madenciliknayi ve Ticaret AS stock overvalued right now?
Based on GuruFocus' analysis, Park Elektrik Uretim Madenciliknayi ve Ticaret AS (IST:PRKME) is currently considered Modestly Overvalued. The stock's GF Value™ is ₺15.44, compared to a current price of ₺19.14 — trading 24% above its estimated fair value. The current Shiller PE Ratio is 239.25, which is 1234% above median its 10-year median of 17.93 and 1800.3% above the Other Energy Sources industry median of 12.59. Park Elektrik Uretim Madenciliknayi ve Ticaret AS's overall GF Score™ is 63/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Shiller PE Ratio calculated?
Shiller PE Ratio is calculated from a company's financial statements. For Park Elektrik Uretim Madenciliknayi ve Ticaret AS (IST:PRKME), the current Shiller PE Ratio is 239.25 as of Sep. 08, 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 Park Elektrik Uretim Madenciliknayi ve Ticaret AS (IST:PRKME) Overvalued in 2026?
Based on GuruFocus' analysis, Park Elektrik Uretim Madenciliknayi ve Ticaret AS stock appears to be overvalued.
The current stock price of ₺19.14 is trading 24% above its estimated GF Value™ of ₺15.44.
GuruFocus considers Park Elektrik Uretim Madenciliknayi ve Ticaret AS to be Modestly Overvalued.
Key valuation signals for IST:PRKME:
Shiller PE Ratio: 239.25 (1234% above median its 10-year median of 17.93)
GF Value™: ₺15.44 vs. price of ₺19.14 (24% above fair value)
Industry Position: 1800.3% above the Other Energy Sources median (#74 of 79)
No single metric tells the full story. See the IST:PRKME stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
IST:PRKME has been successfully added to your 
