Temapol Polimer Plastik Ve Insaatnayi Ticaret AS (IST:TMPOL) Shiller PE Ratio: 419.54 (As of Sep. 04, 2026) — 13% Below Median

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
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.
Reviewed by: Charlie Tian Charlie Tian
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.

IST:TMPOL Temapol Polimer Plastik Ve Insaat Sanayi Ticaret AS IST:TMPOL
53 GF Score
Price ₺365.00
GF Value ₺106.96
Valuation Significantly Overvalued
! 8 Warning Signs
View Full Analysis

What is Temapol Polimer Plastik Ve Insaatnayi Ticaret AS Shiller PE Ratio?

Temapol Polimer Plastik Ve Insaatnayi Ticaret AS IST:TMPOL -5.69% 53 Shiller PE Ratio is 419.54 as of Sep. 04, 2026, which is 13% below its 10-year median of 482.90. GuruFocus rates IST:TMPOL with a GF Score™ of 53/100 and a GF Value™ of ₺106.96 (Significantly Overvalued). The stock has 8 warning signs investors should review. Among 1,081 Chemicals companies, Temapol Polimer Plastik Ve Insaatnayi Ticaret AS ranks worse than 99.07% on this metric.

As of today (2026-09-04), Temapol Polimer Plastik Ve Insaatnayi Ticaret AS's current share price is ₺365.00. Temapol Polimer Plastik Ve Insaatnayi Ticaret AS's E10 for the fiscal year that ended in Dec25 was ₺0.87. Temapol Polimer Plastik Ve Insaatnayi Ticaret AS's Shiller PE Ratio for today is 419.54.

The historical rank and industry rank for Temapol Polimer Plastik Ve Insaatnayi Ticaret AS's Shiller PE Ratio or its related term are showing as below:

IST:TMPOL' s Shiller PE Ratio Range Over the Past 10 Years
Min: 57.05   Med: 482.9   Max: 786.21
Current: 522.39

During the past 11 years, Temapol Polimer Plastik Ve Insaatnayi Ticaret AS's highest Shiller PE Ratio was 786.21. The lowest was 57.05. And the median was 482.90.

IST:TMPOL's Shiller PE Ratio is ranked worse than
99.07% of 1081 companies
in the Chemicals industry
Industry Median: 21.85 vs IST:TMPOL: 522.39

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.

Temapol Polimer Plastik Ve Insaatnayi Ticaret AS's adjusted earnings per share data of for the fiscal year that ended in Dec25 was ₺-3.820. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is ₺0.87 for the trailing ten years ended in Dec25.

Shiller PE for Stocks: The True Measure of Stock Valuation


Temapol Polimer Plastik Ve Insaatnayi Ticaret AS  (IST:TMPOL) 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.


Temapol Polimer Plastik Ve Insaatnayi Ticaret AS Shiller PE Ratio Related Terms


Temapol Polimer Plastik Ve Insaatnayi Ticaret AS Shiller PE Ratio Historical Data

* Premium members only.

The historical data trend for Temapol Polimer Plastik Ve Insaatnayi Ticaret AS's Shiller PE Ratio 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.

Temapol Polimer Plastik Ve Insaatnayi Ticaret AS Shiller PE Ratio Chart

Temapol Polimer Plastik Ve Insaatnayi Ticaret AS Annual Data
Trend Dec14 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Shiller PE Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 61.20 335.49

Temapol Polimer Plastik Ve Insaatnayi Ticaret AS Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
Shiller PE Ratio Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 61.20 0.00 0.00 0.00 335.49

IST:TMPOL vs LIN, SHW, ECL: Shiller PE Ratio Comparison

For the Specialty Chemicals subindustry, Temapol Polimer Plastik Ve Insaatnayi Ticaret AS's Shiller PE Ratio, along with its competitors' market caps and Shiller PE 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.


Temapol Polimer Plastik Ve Insaatnayi Ticaret AS Shiller PE Ratio vs Chemicals Industry

For the Chemicals industry and Basic Materials sector, Temapol Polimer Plastik Ve Insaatnayi Ticaret AS's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Temapol Polimer Plastik Ve Insaatnayi Ticaret AS's Shiller PE Ratio falls into.


IST:TMPOL
53GF Score
Temapol Polimer Plastik Ve Insaat Sanayi Ticaret AS IST:TMPOL
Shiller PE Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Temapol Polimer Plastik Ve Insaatnayi 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.

Temapol Polimer Plastik Ve Insaatnayi Ticaret AS's Shiller PE Ratio for today is calculated as

Shiller PE Ratio=Share Price/ E10
=365.00/0.87
=419.54

* 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.

Temapol Polimer Plastik Ve Insaatnayi Ticaret AS's E10 for the fiscal year that ended in Dec25 is calculated as:

For example, Temapol Polimer Plastik Ve Insaatnayi Ticaret AS's adjusted earnings per share data for the fiscal year that ended in Dec25 was:

Adj_EPS=Earnings per Share (Diluted)/CPI of Dec25 (Change)*Current CPI (Dec25)
=-3.82/324.0540*324.0540
=-3.820

Current CPI (Dec25) = 324.0540.

Temapol Polimer Plastik Ve Insaatnayi Ticaret AS Annual Data

Earnings per Share (Diluted) CPI Adj_EPS
201412 0.160 234.812 0.221
201712 0.136 246.524 0.179
201812 -0.080 251.233 -0.103
201912 1.090 256.974 1.375
202012 0.680 260.474 0.846
202112 1.760 278.802 2.046
202212 2.300 296.797 2.511
202312 1.940 306.746 2.049
202412 3.290 315.605 3.378
202512 -3.820 324.054 -3.820

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.

Frequently Asked Questions Learn more about Shiller PE Ratio →
What does a Shiller PE Ratio of 419.54 mean?
Temapol Polimer Plastik Ve Insaatnayi Ticaret AS (IST:TMPOL) has a Shiller PE Ratio of 419.54 as of Sep. 04, 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 Temapol Polimer Plastik Ve Insaatnayi Ticaret AS and its competitors. This is 13% below median its historical median of 482.90. Over the past decade, Temapol Polimer Plastik Ve Insaatnayi Ticaret AS's Shiller PE Ratio has ranged from 57.05 to 786.21. According to the industry distribution chart, Temapol Polimer Plastik Ve Insaatnayi Ticaret AS ranks #1071 out of 1081 companies in the Chemicals industry, placing it in the top 99.1%.
Is Temapol Polimer Plastik Ve Insaatnayi Ticaret AS's Shiller PE Ratio too high?
Temapol Polimer Plastik Ve Insaatnayi Ticaret AS's current Shiller PE Ratio of 419.54 is 13% below median its 10-year median of 482.90. Over the past 10 years, this metric has ranged from a low of 57.05 to a high of 786.21. The Chemicals industry median Shiller PE Ratio is 21.85. Temapol Polimer Plastik Ve Insaatnayi Ticaret AS's value of 419.54 is 1820.1% above this industry median. Based on the distribution chart, Temapol Polimer Plastik Ve Insaatnayi Ticaret AS ranks #1071 out of 1081 companies in the Chemicals industry, which is in the bottom quartile relative to peers. Overall, Temapol Polimer Plastik Ve Insaatnayi Ticaret AS has a GF Score™ of 53/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Temapol Polimer Plastik Ve Insaatnayi Ticaret AS's Shiller PE Ratio compare to LIN and SHW?
According to the Chemicals industry distribution chart, Temapol Polimer Plastik Ve Insaatnayi Ticaret AS ranks #1071 out of 1081 companies for Shiller PE Ratio. This places Temapol Polimer Plastik Ve Insaatnayi Ticaret AS in the lower half of its industry. The industry median Shiller PE Ratio is 21.85. Temapol Polimer Plastik Ve Insaatnayi Ticaret AS's value of 419.54 is 1820.1% above this benchmark. Historically, Temapol Polimer Plastik Ve Insaatnayi Ticaret AS's own Shiller PE Ratio has ranged from 57.05 to 786.21 over the past decade. While the company's 10-year median is 482.90 vs. the industry median of 21.85, Temapol Polimer Plastik Ve Insaatnayi 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 a Chemicals company?
The median Shiller PE Ratio among Chemicals companies is 21.85, based on 1,081 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. Temapol Polimer Plastik Ve Insaatnayi Ticaret AS's current Shiller PE Ratio of 419.54 is 1820.1% 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 Temapol Polimer Plastik Ve Insaatnayi Ticaret AS and its competitors. For the Chemicals industry, the median Shiller PE Ratio is 21.85 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Temapol Polimer Plastik Ve Insaatnayi Ticaret AS's current Shiller PE Ratio is 419.54, which is 13% below median its own 10-year median of 482.90. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Temapol Polimer Plastik Ve Insaatnayi Ticaret AS stock overvalued right now?
Based on GuruFocus' analysis, Temapol Polimer Plastik Ve Insaatnayi Ticaret AS (IST:TMPOL) is currently considered Significantly Overvalued. The stock's GF Value™ is ₺106.96, compared to a current price of ₺365.00 — trading 241.2% above its estimated fair value. The current Shiller PE Ratio is 419.54, which is 13% below median its 10-year median of 482.90 and 1820.1% above the Chemicals industry median of 21.85. Temapol Polimer Plastik Ve Insaatnayi Ticaret AS's overall GF Score™ is 53/100 with 8 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 Temapol Polimer Plastik Ve Insaatnayi Ticaret AS (IST:TMPOL), the current Shiller PE Ratio is 419.54 as of Sep. 04, 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 Temapol Polimer Plastik Ve Insaatnayi Ticaret AS (IST:TMPOL) Overvalued in 2026?

Based on GuruFocus' analysis, Temapol Polimer Plastik Ve Insaatnayi Ticaret AS stock appears to be overvalued. The current stock price of ₺365.00 is trading 241.2% above its estimated GF Value™ of ₺106.96. GuruFocus considers Temapol Polimer Plastik Ve Insaatnayi Ticaret AS to be Significantly Overvalued.

Key valuation signals for IST:TMPOL:

  • Shiller PE Ratio: 419.54 (13% below median its 10-year median of 482.90)
  • GF Value™: ₺106.96 vs. price of ₺365.00 (241.2% above fair value)
  • GF Score™: 53/100 with 8 warning signs
  • Industry Position: 1820.1% above the Chemicals median (#1071 of 1081)

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


Temapol Polimer Plastik Ve Insaatnayi Ticaret AS Business Description

Address 5th Street, No: 9 38260, Mimarsinan Organized Industry Department, Kayseri, TUR, 31187
Temapol Polimer Plastik ve Insaat Sanayi Ticaret AS is engaged in the manufacturing of plastic polymer products. The company offers its products for the Automotive industry, Acrylics, Temaglass, Furniture, Medical Appliances, Refrigeration industry, and others.
53GF Score

Get the complete analysis for IST:TMPOL

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

₺365.00
Price
₺106.96
GF Value