IS Yatirim Menkul Degerler AS (IST:ISMEN) E10: ₺2.11 (As of Jun. 2026)

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:ISMEN IS Yatirim Menkul Degerler AS IST:ISMEN
75 GF Score
Price ₺32.28
GF Value ₺63.39
Valuation Possible Value Trap
! 4 Warning Signs
View Full Analysis

What is IS Yatirim Menkul Degerler AS E10?

IS Yatirim Menkul Degerler AS IST:ISMEN -0.68% 75 E10 is ₺2.11 as of Jun. 2026. GuruFocus rates IST:ISMEN with a GF Score™ of 75/100 and a GF Value™ of ₺63.39 (Possible Value Trap). The stock has 4 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.

IS Yatirim Menkul Degerler AS's adjusted earnings per share data for the three months ended in Jun. 2026 was ₺1.141. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is ₺2.11 for the trailing ten years ended in Jun. 2026.

During the past 12 months, IS Yatirim Menkul Degerler AS's average E10 Growth Rate was 31.90% per year. During the past 3 years, the average E10 Growth Rate was 51.60% per year. During the past 5 years, the average E10 Growth Rate was 70.30% 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 IS Yatirim Menkul Degerler AS was 89.00% per year. The lowest was 51.60% per year. And the median was 78.60% per year.

As of today (2026-08-26), IS Yatirim Menkul Degerler AS's current stock price is ₺32.28. IS Yatirim Menkul Degerler AS's E10 for the quarter that ended in Jun. 2026 was ₺2.11. IS Yatirim Menkul Degerler AS's Shiller PE Ratio of today is 15.30.

During the past 13 years, the highest Shiller PE Ratio of IS Yatirim Menkul Degerler AS was 63.55. The lowest was 7.81. And the median was 21.26.


IS Yatirim Menkul Degerler AS  (IST:ISMEN) 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.

IS Yatirim Menkul Degerler AS's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=32.28/2.11
=15.30

* 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 IS Yatirim Menkul Degerler AS was 63.55. The lowest was 7.81. And the median was 21.26.


Be Aware

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


IS Yatirim Menkul Degerler AS E10 Related Terms


IS Yatirim Menkul Degerler AS E10 Historical Data

* Premium members only.

The historical data trend for IS Yatirim Menkul Degerler 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.

IS Yatirim Menkul Degerler AS E10 Chart

IS Yatirim Menkul Degerler 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 0.23 0.54 0.82 1.31 1.88

IS Yatirim Menkul Degerler AS Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 1.60 1.71 1.88 1.97 2.11

IST:ISMEN vs MS, GS, SCHW: E10 Comparison

For the Capital Markets subindustry, IS Yatirim Menkul Degerler 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.


IS Yatirim Menkul Degerler AS Shiller PE Ratio vs Capital Markets Industry

For the Capital Markets industry and Financial Services sector, IS Yatirim Menkul Degerler AS's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where IS Yatirim Menkul Degerler AS's Shiller PE Ratio falls into.


IST:ISMEN
75GF Score
IS Yatirim Menkul Degerler AS IST:ISMEN
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

IS Yatirim Menkul Degerler 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, IS Yatirim Menkul Degerler AS's adjusted earnings per share data for the three months ended in Jun. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=1.141/333.9520*333.9520
=1.141

Current CPI (Jun. 2026) = 333.9520.

IS Yatirim Menkul Degerler AS Quarterly Data

per share eps CPI Adj_EPS
201609 0.009 241.428 0.012
201612 0.009 241.432 0.012
201703 0.018 243.801 0.025
201706 0.029 244.955 0.040
201709 0.028 246.819 0.038
201712 0.030 246.524 0.041
201803 0.039 249.554 0.052
201806 0.031 251.989 0.041
201809 0.030 252.439 0.040
201812 0.048 251.233 0.064
201903 0.060 254.202 0.079
201906 0.075 256.143 0.098
201909 0.058 256.759 0.075
201912 0.061 256.974 0.079
202003 0.075 258.115 0.097
202006 0.155 257.797 0.201
202009 0.172 260.280 0.221
202012 0.226 260.474 0.290
202103 0.254 264.877 0.320
202106 0.171 271.696 0.210
202109 0.164 274.310 0.200
202112 0.193 278.802 0.231
202203 0.372 287.504 0.432
202206 0.472 296.311 0.532
202209 0.511 296.808 0.575
202212 1.688 296.797 1.899
202303 0.654 301.836 0.724
202306 0.449 305.109 0.491
202309 0.383 307.789 0.416
202312 1.197 306.746 1.303
202403 0.244 312.332 0.261
202406 1.607 314.175 1.708
202409 1.179 315.301 1.249
202412 1.620 315.605 1.714
202503 0.994 319.799 1.038
202506 1.628 322.561 1.685
202509 1.009 324.800 1.037
202512 1.764 324.054 1.818
202603 0.564 330.213 0.570
202606 1.141 333.952 1.141

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 ₺2.11 mean?
IS Yatirim Menkul Degerler AS (IST:ISMEN) has a E10 of ₺2.11 as of Jun. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on IS Yatirim Menkul Degerler AS and its competitors.
Is IS Yatirim Menkul Degerler AS's E10 too high?
IS Yatirim Menkul Degerler AS's current E10 is ₺2.11. Overall, IS Yatirim Menkul Degerler AS has a GF Score™ of 75/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does IS Yatirim Menkul Degerler AS's E10 compare to MS and GS?
IS Yatirim Menkul Degerler AS's E10 of ₺2.11 can be compared against companies in the Capital Markets 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 Capital Markets company?
A good E10 depends on the Capital Markets 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 IS Yatirim Menkul Degerler AS and its competitors. IS Yatirim Menkul Degerler AS's current E10 is ₺2.11. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is IS Yatirim Menkul Degerler AS stock overvalued right now?
Based on GuruFocus' analysis, IS Yatirim Menkul Degerler AS (IST:ISMEN) is currently considered Possible Value Trap. The stock's GF Value™ is ₺63.39, compared to a current price of ₺32.28 — trading 49.1% below its estimated fair value. The current E10 is ₺2.11. IS Yatirim Menkul Degerler AS's overall GF Score™ is 75/100 with 4 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 IS Yatirim Menkul Degerler AS (IST:ISMEN), the current E10 is ₺2.11 as of Jun. 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 IS Yatirim Menkul Degerler AS (IST:ISMEN) Overvalued in 2026?

Based on GuruFocus' analysis, IS Yatirim Menkul Degerler AS stock appears to be undervalued. The current stock price of ₺32.28 is trading 49.1% below its estimated GF Value™ of ₺63.39. GuruFocus considers IS Yatirim Menkul Degerler AS to be Possible Value Trap.

Key valuation signals for IST:ISMEN:

  • E10: ₺2.11
  • GF Value™: ₺63.39 vs. price of ₺32.28 (49.1% below fair value)
  • GF Score™: 75/100 with 4 warning signs

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


IS Yatirim Menkul Degerler AS Business Description

Address Levent Mahallesi, Meltem Sokak, Is Kuleleri Kule-2, Kat: 13, No:10/14, Besiktas, Istanbul, TUR, 34330
IS Yatirim Menkul Degerler AS is a Turkey-based company engaged in the provision of investment advisory services, market making and liquidity providing services as well as traditional brokerage services The company's operating segment includes Securities Brokerage, Investment Trust, Portfolio Management, Private Equity, and Asset Management. It generates maximum revenue from the Securities Brokerage segment. The company serves domestic and international, individual and institutional investors with high-added-value services.
75GF Score

Get the complete analysis for IST:ISMEN

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

₺32.28
Price
₺63.39
GF Value