Sonmez Filament Sentetik Iplik Ve Elyafnayi AS (IST:SONME) E10: ₺0.38 (As of Dec. 2025)


IST:SONME Sonmez Filament Sentetik Iplik Ve Elyaf Sanayi AS IST:SONME
75 GF Score
Price ₺128.50
GF Value ₺113.65
Valuation Modestly Overvalued
! 3 Warning Signs
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What is Sonmez Filament Sentetik Iplik Ve Elyafnayi AS E10?

Sonmez Filament Sentetik Iplik Ve Elyafnayi AS IST:SONME +0.47% 75 E10 is ₺0.38 as of Dec. 2025. GuruFocus rates IST:SONME with a GF Score™ of 75/100 and a GF Value™ of ₺113.65 (Modestly Overvalued). The stock has 3 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.

Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's adjusted earnings per share data for the three months ended in Dec. 2025 was ₺-3.500. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is ₺0.38 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's average E10 Growth Rate was -50.00% per year. During the past 3 years, the average E10 Growth Rate was 39.50% per year. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the E10 growth rate using E10 data.

During the past 13 years, the highest 3-Year average E10 Growth Rate of Sonmez Filament Sentetik Iplik Ve Elyafnayi AS was 68.10% per year. The lowest was 39.50% per year. And the median was 53.80% per year.

As of today (2026-06-26), Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's current stock price is ₺128.50. Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's E10 for the quarter that ended in Dec. 2025 was ₺0.38. Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's Shiller PE Ratio of today is 338.16.

During the past 13 years, the highest Shiller PE Ratio of Sonmez Filament Sentetik Iplik Ve Elyafnayi AS was 569.50. The lowest was 106.78. And the median was 220.98.


Sonmez Filament Sentetik Iplik Ve Elyafnayi AS  (IST:SONME) E10 Explanation

If a company grows much fast than inflation, E10 may underestimate the company's earnings power. Shiller PE Ratio can seem to be too high even the actual P/E is low.

For the Shiller P/E, 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 P/E is also called PE10.

The Shiller P/E was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.

Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=128.50/0.38
=338.16

* 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.

During the past 13 years, the highest Shiller P/E Ratio of Sonmez Filament Sentetik Iplik Ve Elyafnayi AS was 569.50. The lowest was 106.78. And the median was 220.98.


Be Aware

Shiller PE Ratio works better for cyclical companies. It gives you a better idea on the company's real earnings power.


Sonmez Filament Sentetik Iplik Ve Elyafnayi AS E10 Related Terms


Sonmez Filament Sentetik Iplik Ve Elyafnayi AS E10 Historical Data

* Premium members only.

The historical data trend for Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's E10 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.

Sonmez Filament Sentetik Iplik Ve Elyafnayi AS E10 Chart

Sonmez Filament Sentetik Iplik Ve Elyafnayi AS Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.16 0.14 0.39 0.76 0.38

Sonmez Filament Sentetik Iplik Ve Elyafnayi AS Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
E10 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 0.76 0.83 0.72 0.73 0.38

Sonmez Filament Sentetik Iplik Ve Elyafnayi AS E10 Competitor Comparison

For the Textile Manufacturing subindustry, Sonmez Filament Sentetik Iplik Ve Elyafnayi 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.


Sonmez Filament Sentetik Iplik Ve Elyafnayi AS Shiller PE Ratio vs Manufacturing - Apparel & Accessories Industry

For the Manufacturing - Apparel & Accessories industry and Consumer Cyclical sector, Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's Shiller PE Ratio falls into.


IST:SONME
75GF Score
Sonmez Filament Sentetik Iplik Ve Elyaf Sanayi AS IST:SONME
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Sonmez Filament Sentetik Iplik Ve Elyafnayi AS E10 Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. When we calculate the today's Shiller P/E ratio of a stock, we use today's price divided by E10.

What is E10? How do we calculate E10?

E10 is the average of the inflation adjusted earnings of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the E10 of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the earnings from 2001 through 2010.

We adjusted the earnings of 2001 earnings data with the total inflation from 2001 through 2010 to the equivalent earnings in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart earned $1 a share in 2001, then the 2001's equivalent earnings in 2010 is $1.4 a share. If Wal-Mart earns $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 earnings in 2010 is $1.35. So on and so forth, you get the equivalent earnings of past 10 years. Then you add them together and divided the sum by 10 to get 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.

For example, Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's adjusted earnings per share data for the three months ended in Dec. 2025 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=-3.5/324.0540*324.0540
=-3.500

Current CPI (Dec. 2025) = 324.0540.

Sonmez Filament Sentetik Iplik Ve Elyafnayi AS Quarterly Data

per share eps CPI Adj_EPS
201603 0.061 238.132 0.083
201606 0.009 241.018 0.012
201609 0.023 241.428 0.031
201612 0.016 241.432 0.021
201703 0.047 243.801 0.062
201706 0.011 244.955 0.015
201709 0.076 246.819 0.100
201712 0.026 246.524 0.034
201803 0.019 249.554 0.025
201806 -0.218 251.989 -0.280
201809 0.035 252.439 0.045
201812 -0.002 251.233 -0.003
201903 -0.039 254.202 -0.050
201906 0.164 256.143 0.207
201909 -0.045 256.759 -0.057
201912 0.216 256.974 0.272
202003 -0.023 258.115 -0.029
202006 0.038 257.797 0.048
202009 0.015 260.280 0.019
202012 0.423 260.474 0.526
202103 0.040 264.877 0.049
202106 0.043 271.696 0.051
202109 0.054 274.310 0.064
202112 0.259 278.802 0.301
202203 0.022 287.504 0.025
202206 0.070 296.311 0.077
202209 0.052 296.808 0.057
202212 -0.390 296.797 -0.426
202303 -0.200 301.836 -0.215
202306 -0.209 305.109 -0.222
202309 0.780 307.789 0.821
202312 2.200 306.746 2.324
202403 1.190 312.332 1.235
202406 -1.140 314.175 -1.176
202409 0.340 315.301 0.349
202412 3.259 315.605 3.346
202503 0.620 319.799 0.628
202506 -1.200 322.561 -1.206
202509 0.120 324.800 0.120
202512 -3.500 324.054 -3.500

Add all the adjusted EPS together and divide 10 will get our e10.

Frequently Asked Questions Learn more about E10 →
What does a E10 of ₺0.38 mean?
Sonmez Filament Sentetik Iplik Ve Elyafnayi AS (IST:SONME) has a E10 of ₺0.38 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Sonmez Filament Sentetik Iplik Ve Elyafnayi AS and its competitors.
Is Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's E10 too high?
Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's current E10 is ₺0.38. Overall, Sonmez Filament Sentetik Iplik Ve Elyafnayi AS has a GF Score™ of 75/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's E10 compare to competitors?
Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's E10 of ₺0.38 can be compared against companies in the Manufacturing - Apparel & Accessories industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good E10 for a Manufacturing - Apparel & Accessories company?
A good E10 depends on the Manufacturing - Apparel & Accessories industry context. However, E10 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 E10 mean?
A high E10 can signal that a stock is expensive relative to its fundamentals. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Sonmez Filament Sentetik Iplik Ve Elyafnayi AS and its competitors. Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's current E10 is ₺0.38. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sonmez Filament Sentetik Iplik Ve Elyafnayi AS stock overvalued right now?
Based on GuruFocus' analysis, Sonmez Filament Sentetik Iplik Ve Elyafnayi AS (IST:SONME) is currently considered Modestly Overvalued. The stock's GF Value™ is ₺113.65, compared to a current price of ₺128.50 — trading 13.1% above its estimated fair value. The current E10 is ₺0.38. Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's overall GF Score™ is 75/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is E10 calculated?
E10 is calculated from a company's financial statements. For Sonmez Filament Sentetik Iplik Ve Elyafnayi AS (IST:SONME), the current E10 is ₺0.38 as of Dec. 2025. 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 Sonmez Filament Sentetik Iplik Ve Elyafnayi AS (IST:SONME) Overvalued in 2026?

Based on GuruFocus' analysis, Sonmez Filament Sentetik Iplik Ve Elyafnayi AS stock appears to be overvalued. The current stock price of ₺128.50 is trading 13.1% above its estimated GF Value™ of ₺113.65. GuruFocus considers Sonmez Filament Sentetik Iplik Ve Elyafnayi AS to be Modestly Overvalued.

Key valuation signals for IST:SONME:

  • E10: ₺0.38
  • GF Value™: ₺113.65 vs. price of ₺128.50 (13.1% above fair value)
  • GF Score™: 75/100 with 3 warning signs

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


Sonmez Filament Sentetik Iplik Ve Elyafnayi AS Business Description

Address Organize Sanayi Bolgesi Ali Osman Sonmez Bulvari No: 1, Bursa, TUR, 16372
Sonmez Filament Sentetik Iplik Ve Elyaf Sanayi AS is engaged in the production of a range of polyester yarn and fiber. The products include flat, twisted, fancy, elastic and colored yarn.
75GF Score

Get the complete analysis for IST:SONME

E10 is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

₺128.50
Price
₺113.65
GF Value