Sonmez Filament Sentetik Iplik Ve Elyafnayi AS (IST:SONME) Cyclically Adjusted Book per Share: ₺12.65 (As of Dec. 2025)


IST:SONME Sonmez Filament Sentetik Iplik Ve Elyaf Sanayi AS IST:SONME
74 GF Score
Price ₺124.10
GF Value ₺113.99
Valuation Fairly Valued
! 3 Warning Signs
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What is Sonmez Filament Sentetik Iplik Ve Elyafnayi AS Cyclically Adjusted Book per Share?

Sonmez Filament Sentetik Iplik Ve Elyafnayi AS IST:SONME 74 Cyclically Adjusted Book per Share is ₺12.65 as of Dec. 2025. GuruFocus rates IST:SONME with a GF Score™ of 74/100 and a GF Value™ of ₺113.99 (Fairly Valued). The stock has 3 warning signs investors should review.

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. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and 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.

Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's adjusted book value per share for the three months ended in Dec. 2025 was ₺58.866. 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 ₺12.65 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's average Cyclically Adjusted Book Growth Rate was 79.70% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 61.70% 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 Cyclically Adjusted Book Growth Rate using Cyclically Adjusted Book per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of Sonmez Filament Sentetik Iplik Ve Elyafnayi AS was 66.30% per year. The lowest was 61.70% per year. And the median was 64.00% per year.

As of today (2026-07-02), Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's current stock price is ₺124.10. Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was ₺12.65. Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's Cyclically Adjusted PB Ratio of today is 9.81.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Sonmez Filament Sentetik Iplik Ve Elyafnayi AS was 35.68. The lowest was 8.33. And the median was 15.79.


Sonmez Filament Sentetik Iplik Ve Elyafnayi AS  (IST:SONME) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB Ratio.

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.

Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=124.10/12.65
=9.81

* 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 Cyclically Adjusted PB Ratio of Sonmez Filament Sentetik Iplik Ve Elyafnayi AS was 35.68. The lowest was 8.33. And the median was 15.79.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


Sonmez Filament Sentetik Iplik Ve Elyafnayi AS Cyclically Adjusted Book per Share Related Terms


Sonmez Filament Sentetik Iplik Ve Elyafnayi AS Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's Cyclically Adjusted Book per Share 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 Cyclically Adjusted Book per Share Chart

Sonmez Filament Sentetik Iplik Ve Elyafnayi AS Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1.53 2.99 4.51 7.04 12.65

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
Cyclically Adjusted Book per Share 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 7.04 8.29 9.72 11.23 12.65

Sonmez Filament Sentetik Iplik Ve Elyafnayi AS Cyclically Adjusted Book per Share Competitor Comparison

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


Sonmez Filament Sentetik Iplik Ve Elyafnayi AS Cyclically Adjusted PB Ratio vs Manufacturing - Apparel & Accessories Industry

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

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


IST:SONME
74GF Score
Sonmez Filament Sentetik Iplik Ve Elyaf Sanayi AS IST:SONME
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
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Sonmez Filament Sentetik Iplik Ve Elyafnayi AS Cyclically Adjusted Book per Share Calculation

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. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and 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.

What is Cyclically Adjusted Book per Share? How do we calculate Cyclically Adjusted Book per Share?

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

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

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 Book Value per Share data for the three months ended in Dec. 2025 was:

Adj_Book= Book Value per Share /CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=58.866/324.0540*324.0540
=58.866

Current CPI (Dec. 2025) = 324.0540.

Sonmez Filament Sentetik Iplik Ve Elyafnayi AS Quarterly Data

Book Value per Share CPI Adj_Book
201603 0.807 238.132 1.098
201606 0.816 241.018 1.097
201609 0.839 241.428 1.126
201612 0.855 241.432 1.148
201703 0.902 243.801 1.199
201706 0.914 244.955 1.209
201709 0.989 246.819 1.298
201712 1.015 246.524 1.334
201803 1.034 249.554 1.343
201806 0.287 251.989 0.369
201809 0.319 252.439 0.409
201812 0.317 251.233 0.409
201903 0.278 254.202 0.354
201906 2.588 256.143 3.274
201909 2.542 256.759 3.208
201912 2.734 256.974 3.448
202003 2.724 258.115 3.420
202006 2.762 257.797 3.472
202009 2.777 260.280 3.457
202012 3.213 260.474 3.997
202103 3.250 264.877 3.976
202106 3.294 271.696 3.929
202109 3.348 274.310 3.955
202112 3.622 278.802 4.210
202203 3.644 287.504 4.107
202206 3.714 296.311 4.062
202209 3.829 296.808 4.180
202212 42.914 296.797 46.855
202303 3.915 301.836 4.203
202306 3.517 305.109 3.735
202309 3.646 307.789 3.839
202312 44.986 306.746 47.524
202403 13.352 312.332 13.853
202406 13.617 314.175 14.045
202409 15.090 315.301 15.509
202412 62.569 315.605 64.244
202503 53.236 319.799 53.944
202506 55.234 322.561 55.490
202509 58.833 324.800 58.698
202512 58.866 324.054 58.866

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

What does a Cyclically Adjusted Book per Share of ₺12.65 mean?
Sonmez Filament Sentetik Iplik Ve Elyafnayi AS (IST:SONME) has a Cyclically Adjusted Book per Share of ₺12.65 as of Dec. 2025. Cyclically adjusted book value per share represents the company's inflation-adjusted book value 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 Cyclically Adjusted Book per Share too high?
Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's current Cyclically Adjusted Book per Share is ₺12.65. Overall, Sonmez Filament Sentetik Iplik Ve Elyafnayi AS has a GF Score™ of 74/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's Cyclically Adjusted Book per Share compare to competitors?
Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's Cyclically Adjusted Book per Share of ₺12.65 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 Cyclically Adjusted Book per Share for a Manufacturing - Apparel & Accessories company?
A good Cyclically Adjusted Book per Share depends on the Manufacturing - Apparel & Accessories industry context. However, Cyclically Adjusted Book per Share 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 Cyclically Adjusted Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value 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 Cyclically Adjusted Book per Share is ₺12.65. 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 Fairly Valued. The stock's GF Value™ is ₺113.99, compared to a current price of ₺124.10 — trading 8.9% above its estimated fair value. The current Cyclically Adjusted Book per Share is ₺12.65. Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's overall GF Score™ is 74/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For Sonmez Filament Sentetik Iplik Ve Elyafnayi AS (IST:SONME), the current Cyclically Adjusted Book per Share is ₺12.65 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 ₺124.10 is trading 8.9% above its estimated GF Value™ of ₺113.99. GuruFocus considers Sonmez Filament Sentetik Iplik Ve Elyafnayi AS to be Fairly Valued.

Key valuation signals for IST:SONME:

  • Cyclically Adjusted Book per Share: ₺12.65
  • GF Value™: ₺113.99 vs. price of ₺124.10 (8.9% above fair value)
  • GF Score™: 74/100 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.
74GF Score

Get the complete analysis for IST:SONME

Cyclically Adjusted Book per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

₺124.10
Price
₺113.99
GF Value