Yeo Teknoloji Enerji Ve Endustri AS (IST:YEOTK) Piotroski F-Score: 5 (As of Sep. 05, 2026) — Near 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:YEOTK Yeo Teknoloji Enerji Ve Endustri AS IST:YEOTK
88 GF Score
Price ₺32.24
GF Value ₺42.03
Valuation Modestly Undervalued
! 6 Warning Signs
View Full Analysis

What is Yeo Teknoloji Enerji Ve Endustri AS Piotroski F-Score?

Yeo Teknoloji Enerji Ve Endustri AS IST:YEOTK +0.81% 88 Piotroski F-Score is 5 as of Sep. 05, 2026, which is at its 10-year median of 5.00. GuruFocus rates IST:YEOTK with a GF Score™ of 88/100 and a GF Value™ of ₺42.03 (Modestly Undervalued). The stock has 6 warning signs investors should review. Among 1,745 Construction companies, Yeo Teknoloji Enerji Ve Endustri AS ranks better than 54.27% on this metric.

The zones of discrimination were as such:

Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3

Yeo Teknoloji Enerji Ve Endustri AS has an F-score of 5 indicating the company's financial situation is typical for a stable company.

The historical rank and industry rank for Yeo Teknoloji Enerji Ve Endustri AS's Piotroski F-Score or its related term are showing as below:

IST:YEOTK' s Piotroski F-Score Range Over the Past 10 Years
Min: 2   Med: 5   Max: 6
Current: 5

During the past 8 years, the highest Piotroski F-Score of Yeo Teknoloji Enerji Ve Endustri AS was 6. The lowest was 2. And the median was 5.

Yeo Teknoloji Enerji Ve Endustri AS  (IST:YEOTK) Piotroski F-Score Explanation

The developer of the system is Joseph D. Piotroski is relatively unknown accounting professor who shuns publicity and rarely gives interviews.

He graduated from the University of Illinois with a B.S. in accounting in 1989, received an M.B.A. from Indiana University in 1994. Five years later, in 1999, after earning a Ph.D. in accounting from the University of Michigan, he became an associate professor of accounting at the University of Chicago.

In 2000, he wrote a research paper called "Value Investing: The Use of Historical Financial Statement Information to Separate Winners from Losers" (pdf).

He wanted to see if he can develop a system (using a simple nine-point scoring system) that can increase the returns of a strategy of investing in low price to book (referred to in the paper as high book to market) value companies.

What he found was something that exceeded his most optimistic expectations.

Buying only those companies that scored highest (8 or 9) on his nine-point scale, or F-Score as he called it, over the 20 year period from 1976 to 1996 led to an average out-performance over the market of 13.4%.

Even more impressive were the results of a strategy of investing in the highest F-Score companies (8 or 9) and shorting companies with the lowest F-Score (0 or 1).

Over the same period from 1976 to 1996 (20 years) this strategy led to an average yearly return of 23%, substantially outperforming the average S&P 500 index return of 15.83% over the same period.


Yeo Teknoloji Enerji Ve Endustri AS Piotroski F-Score Related Terms


Yeo Teknoloji Enerji Ve Endustri AS Piotroski F-Score Historical Data

* Premium members only.

The historical data trend for Yeo Teknoloji Enerji Ve Endustri AS's Piotroski F-Score 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.

Yeo Teknoloji Enerji Ve Endustri AS Piotroski F-Score Chart

Yeo Teknoloji Enerji Ve Endustri AS Annual Data
Trend Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Piotroski F-Score
Get a 7-Day Free Trial 6.00 4.00 5.00 6.00 5.00

Yeo Teknoloji Enerji Ve Endustri AS Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Piotroski F-Score 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 5.00 2.00 5.00 6.00 5.00

IST:YEOTK vs PWR, FIX, EME: Piotroski F-Score Comparison

For the Engineering & Construction subindustry, Yeo Teknoloji Enerji Ve Endustri AS's Piotroski F-Score, along with its competitors' market caps and Piotroski F-Score 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.


Yeo Teknoloji Enerji Ve Endustri AS Piotroski F-Score vs Construction Industry

For the Construction industry and Industrials sector, Yeo Teknoloji Enerji Ve Endustri AS's Piotroski F-Score distribution charts can be found below:

* The bar in red indicates where Yeo Teknoloji Enerji Ve Endustri AS's Piotroski F-Score falls into.


IST:YEOTK
88GF Score
Yeo Teknoloji Enerji Ve Endustri AS IST:YEOTK
Piotroski F-Score is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

How is the Piotroski F-Score calculated?

* 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.

This Year (Jun26) TTM:Last Year (Jun25) TTM:
Net Income was 813.286 + 757.506 + 195.051 + 460.956 = ₺2,227 Mil.
Cash Flow from Operations was -1558.988 + 1132.694 + 917.407 + 1712.64 = ₺2,204 Mil.
Revenue was 5714.565 + 6458.541 + 4162.901 + 3858.336 = ₺20,194 Mil.
Gross Profit was 1371.833 + 1838.902 + 1844.087 + 875.147 = ₺5,930 Mil.
Average Total Assets from the begining of this year (Jun25)
to the end of this year (Jun26) was
(14456.365 + 19683.123 + 26573.571 + 25689.209 + 29588.474) / 5 = ₺23198.1484 Mil.
Total Assets at the begining of this year (Jun25) was ₺14,456 Mil.
Long-Term Debt & Capital Lease Obligation was ₺5,708 Mil.
Total Current Assets was ₺16,650 Mil.
Total Current Liabilities was ₺16,689 Mil.
Net Income was 415.569 + 309.712 + 66.144 + -185.224 = ₺606 Mil.

Revenue was 2550.035 + 2665.549 + 2237.227 + 3209.582 = ₺10,662 Mil.
Gross Profit was 1014.9 + 881.624 + 738.446 + 412.589 = ₺3,048 Mil.
Average Total Assets from the begining of last year (Jun24)
to the end of last year (Jun25) was
(7550.234 + 8922.752 + 11220.91 + 11208.831 + 14456.365) / 5 = ₺10671.8184 Mil.
Total Assets at the begining of last year (Jun24) was ₺7,550 Mil.
Long-Term Debt & Capital Lease Obligation was ₺2,352 Mil.
Total Current Assets was ₺9,690 Mil.
Total Current Liabilities was ₺8,931 Mil.

*Note: If the latest quarterly/semi-annual/annual total assets data is 0, then we will use previous quarterly/semi-annual/annual data for all the items in the balance sheet.

Profitability

Question 1. Return on Assets (ROA)

Net income before extraordinary items for the year divided by Total Assets at the beginning of the year.

Score 1 if positive, 0 if negative.

Yeo Teknoloji Enerji Ve Endustri AS's current Net Income (TTM) was 2,227. ==> Positive ==> Score 1.

Question 2. Cash Flow Return on Assets (CFROA)

Net cash flow from operating activities (operating cash flow) divided by Total Assets at the beginning of the year.

Score 1 if positive, 0 if negative.

Yeo Teknoloji Enerji Ve Endustri AS's current Cash Flow from Operations (TTM) was 2,204. ==> Positive ==> Score 1.

Question 3. Change in Return on Assets

Compare this year's return on assets (1) to last year's return on assets.

Score 1 if it's higher, 0 if it's lower.

ROA (This Year)=Net Income/Total Assets (Jun25)
=2226.799/14456.365
=0.15403589

ROA (Last Year)=Net Income/Total Assets (Jun24)
=606.201/7550.234
=0.08028903

Yeo Teknoloji Enerji Ve Endustri AS's return on assets of this year was 0.15403589. Yeo Teknoloji Enerji Ve Endustri AS's return on assets of last year was 0.08028903. ==> This year is higher. ==> Score 1.

Question 4. Quality of Earnings (Accrual)

Compare Cash flow return on assets (2) to return on assets (1)

Score 1 if CFROA > ROA, 0 if CFROA <= ROA.

Yeo Teknoloji Enerji Ve Endustri AS's current Net Income (TTM) was 2,227. Yeo Teknoloji Enerji Ve Endustri AS's current Cash Flow from Operations (TTM) was 2,204. ==> 2,204 <= 2,227 ==> CFROA <= ROA ==> Score 0.

Funding

Question 5. Change in Gearing or Leverage

Compare this year's gearing (long-term debt divided by average total assets) to last year's gearing.

Score 0 if this year's gearing is higher, 1 otherwise.

Gearing (This Year: Jun26)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Jun25 to Jun26
=5707.716/23198.1484
=0.24604188

Gearing (Last Year: Jun25)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Jun24 to Jun25
=2351.732/10671.8184
=0.22036844

Yeo Teknoloji Enerji Ve Endustri AS's gearing of this year was 0.24604188. Yeo Teknoloji Enerji Ve Endustri AS's gearing of last year was 0.22036844. ==> Last year is lower than this year ==> Score 0.

Question 6. Change in Working Capital (Liquidity)

Compare this year's current ratio (current assets divided by current liabilities) to last year's current ratio.

Score 1 if this year's current ratio is higher, 0 if it's lower

Current Ratio (This Year: Jun26)=Total Current Assets/Total Current Liabilities
=16649.552/16688.809
=0.99764771

Current Ratio (Last Year: Jun25)=Total Current Assets/Total Current Liabilities
=9689.532/8931.347
=1.08489033

Yeo Teknoloji Enerji Ve Endustri AS's current ratio of this year was 0.99764771. Yeo Teknoloji Enerji Ve Endustri AS's current ratio of last year was 1.08489033. ==> Last year's current ratio is higher ==> Score 0.

Question 7. Change in Shares in Issue

Compare the number of shares in issue this year, to the number in issue last year.

Score 0 if there is larger number of shares in issue this year, 1 otherwise.

Yeo Teknoloji Enerji Ve Endustri AS's number of shares in issue this year was 830. Yeo Teknoloji Enerji Ve Endustri AS's number of shares in issue last year was 830. ==> There is smaller number of shares in issue this year, or the same. ==> Score 1.

Efficiency

Question 8. Change in Gross Margin

Compare this year's gross margin (Gross Profit divided by sales) to last year's.

Score 1 if this year's gross margin is higher, 0 if it's lower.

Gross Margin (This Year: TTM)=Gross Profit/Revenue
=5929.969/20194.343
=0.29364506

Gross Margin (Last Year: TTM)=Gross Profit/Revenue
=3047.559/10662.393
=0.28582317

Yeo Teknoloji Enerji Ve Endustri AS's gross margin of this year was 0.29364506. Yeo Teknoloji Enerji Ve Endustri AS's gross margin of last year was 0.28582317. ==> This year's gross margin is higher. ==> Score 1.

Question 9. Change in asset turnover

Compare this year's asset turnover (total sales for the year divided by total assets at the beginning of the year) to last year's asset turnover ratio.

Score 1 if this year's asset turnover ratio is higher, 0 if it's lower

Asset Turnover (This Year)=Revenue/Total Assets at the Beginning of This Year (Jun25)
=20194.343/14456.365
=1.39691707

Asset Turnover (Last Year)=Revenue/Total Assets at the Beginning of Last Year (Jun24)
=10662.393/7550.234
=1.41219371

Yeo Teknoloji Enerji Ve Endustri AS's asset turnover of this year was 1.39691707. Yeo Teknoloji Enerji Ve Endustri AS's asset turnover of last year was 1.41219371. ==> Last year's asset turnover is higher ==> Score 0.

Evaluation

Piotroski F-Score= Que. 1+ Que. 2+ Que. 3+Que. 4+Que. 5+Que. 6+Que. 7+Que. 8+Que. 9
=1+1+1+0+0+0+1+1+0
=5

Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3

Yeo Teknoloji Enerji Ve Endustri AS has an F-score of 5 indicating the company's financial situation is typical for a stable company.

Frequently Asked Questions Learn more about Piotroski F-Score →
What does a Piotroski F-Score of 5 mean?
Yeo Teknoloji Enerji Ve Endustri AS (IST:YEOTK) has a Piotroski F-Score of 5 as of Sep. 05, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Yeo Teknoloji Enerji Ve Endustri AS and its competitors. This is near median its historical median of 5.00. Over the past decade, Yeo Teknoloji Enerji Ve Endustri AS's Piotroski F-Score has ranged from 2.00 to 6.00. According to the industry distribution chart, Yeo Teknoloji Enerji Ve Endustri AS ranks #798 out of 1745 companies in the Construction industry, placing it in the top 45.7%.
Is Yeo Teknoloji Enerji Ve Endustri AS's Piotroski F-Score too high?
Yeo Teknoloji Enerji Ve Endustri AS's current Piotroski F-Score of 5 is near median its 10-year median of 5.00. Over the past 10 years, this metric has ranged from a low of 2.00 to a high of 6.00. The Construction industry median Piotroski F-Score is 5.00. Yeo Teknoloji Enerji Ve Endustri AS's value of 5 is 0% at this industry median. Based on the distribution chart, Yeo Teknoloji Enerji Ve Endustri AS ranks #798 out of 1745 companies in the Construction industry, which is above the industry midpoint. Overall, Yeo Teknoloji Enerji Ve Endustri AS has a GF Score™ of 88/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Yeo Teknoloji Enerji Ve Endustri AS's Piotroski F-Score compare to PWR and FIX?
According to the Construction industry distribution chart, Yeo Teknoloji Enerji Ve Endustri AS ranks #798 out of 1745 companies for Piotroski F-Score. This puts Yeo Teknoloji Enerji Ve Endustri AS in the upper half of its industry. The industry median Piotroski F-Score is 5.00. Yeo Teknoloji Enerji Ve Endustri AS's value of 5 is 0% at this benchmark. Historically, Yeo Teknoloji Enerji Ve Endustri AS's own Piotroski F-Score has ranged from 2.00 to 6.00 over the past decade. While the company's 10-year median is 5.00 vs. the industry median of 5.00, Yeo Teknoloji Enerji Ve Endustri AS has consistently been at 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 Piotroski F-Score for a Construction company?
The median Piotroski F-Score among Construction companies is 5.00, based on 1,745 companies in the industry. Companies in the top quartile (top 25%) have a Piotroski F-Score significantly above this median, while those in the bottom quartile fall well below. However, Piotroski F-Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Yeo Teknoloji Enerji Ve Endustri AS's current Piotroski F-Score of 5 is 0% at 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 Piotroski F-Score mean?
A high Piotroski F-Score can signal that a stock is expensive relative to its fundamentals. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Yeo Teknoloji Enerji Ve Endustri AS and its competitors. For the Construction industry, the median Piotroski F-Score is 5.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Yeo Teknoloji Enerji Ve Endustri AS's current Piotroski F-Score is 5, which is near median its own 10-year median of 5.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Yeo Teknoloji Enerji Ve Endustri AS stock overvalued right now?
Based on GuruFocus' analysis, Yeo Teknoloji Enerji Ve Endustri AS (IST:YEOTK) is currently considered Modestly Undervalued. The stock's GF Value™ is ₺42.03, compared to a current price of ₺32.24 — trading 23.3% below its estimated fair value. The current Piotroski F-Score is 5, which is near median its 10-year median of 5.00 and 0% at the Construction industry median of 5.00. Yeo Teknoloji Enerji Ve Endustri AS's overall GF Score™ is 88/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Piotroski F-Score calculated?
Piotroski F-Score is calculated from a company's financial statements. For Yeo Teknoloji Enerji Ve Endustri AS (IST:YEOTK), the current Piotroski F-Score is 5 as of Sep. 05, 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 Yeo Teknoloji Enerji Ve Endustri AS (IST:YEOTK) Overvalued in 2026?

Based on GuruFocus' analysis, Yeo Teknoloji Enerji Ve Endustri AS stock appears to be undervalued. The current stock price of ₺32.24 is trading 23.3% below its estimated GF Value™ of ₺42.03. GuruFocus considers Yeo Teknoloji Enerji Ve Endustri AS to be Modestly Undervalued.

Key valuation signals for IST:YEOTK:

  • Piotroski F-Score: 5 (near median its 10-year median of 5.00)
  • GF Value™: ₺42.03 vs. price of ₺32.24 (23.3% below fair value)
  • GF Score™: 88/100 with 6 warning signs
  • Industry Position: 0% at the Construction median (#798 of 1745)

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


Yeo Teknoloji Enerji Ve Endustri AS Business Description

Address Kelebek Sk. Marmara Kule Sitesi, B Blok No:2/1 Ic Kapi No:1, Esentepe Mahallesi, Kartal, Istanbul, TUR, 34870
Yeo Teknoloji Enerji Ve Endustri AS is engaged in the electrification value-chain from power generation, transmission and distribution to the efficient application of electrical energy. It is also providing state-of-the art solutions in fields of electrification, automation, and digitalization. It executes projects as the EPC contractor in design, engineering, installation, and commissioning for traditional state-owned utilities and independent power plant developers.
88GF Score

Get the complete analysis for IST:YEOTK

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

₺32.24
Price
₺42.03
GF Value