Sonmez Filament Sentetik Iplik Ve Elyafnayi AS (IST:SONME) 1-Year Sharpe Ratio: -0.15 (As of Aug. 09, 2026)

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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.
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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:SONME Sonmez Filament Sentetik Iplik Ve Elyaf Sanayi AS IST:SONME
73 GF Score
Price ₺120.40
GF Value ₺116.14
Valuation Fairly Valued
! 3 Warning Signs
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What is Sonmez Filament Sentetik Iplik Ve Elyafnayi AS 1-Year Sharpe Ratio?

Sonmez Filament Sentetik Iplik Ve Elyafnayi AS IST:SONME 73 1-Year Sharpe Ratio is -0.15 as of Aug. 09, 2026. GuruFocus rates IST:SONME with a GF Score™ of 73/100 and a GF Value™ of ₺116.14 (Fairly Valued). The stock has 3 warning signs investors should review.

The 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk over the past year. As of today (2026-08-09), Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's 1-Year Sharpe Ratio is -0.15.


Sonmez Filament Sentetik Iplik Ve Elyafnayi AS  (IST:SONME) 1-Year Sharpe Ratio Explanation

The 1-Year Sharpe Ratio inidicates the risk-adjusted return of an investment over the past year. It is calculated as the annualized result of the average monthly excess return divided by its standard deviation over the past year. The monthly excess return is the monthly investment return minus the monthly risk-free rate (typically the 10-year Treasury Constant Maturity Rate). If the risk-free rate for a specific region is not available, U.S. data is used by default.

The greater a portfolio's Sharpe Ratio, the better its risk-adjusted performance. A negative Sharpe Ratio means the risk-free rate is greater than the portfolio’s historical or projected return, or else the portfolio's return is expected to be negative.


Sonmez Filament Sentetik Iplik Ve Elyafnayi AS 1-Year Sharpe Ratio Related Terms


Sonmez Filament Sentetik Iplik Ve Elyafnayi AS 1-Year Sharpe Ratio Competitor Comparison

For the Textile Manufacturing subindustry, Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's 1-Year Sharpe Ratio, along with its competitors' market caps and 1-Year Sharpe 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 1-Year Sharpe Ratio vs Manufacturing - Apparel & Accessories Industry

For the Manufacturing - Apparel & Accessories industry and Consumer Cyclical sector, Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's 1-Year Sharpe Ratio distribution charts can be found below:

* The bar in red indicates where Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's 1-Year Sharpe Ratio falls into.


IST:SONME
73GF Score
Sonmez Filament Sentetik Iplik Ve Elyaf Sanayi AS IST:SONME
1-Year Sharpe Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Sonmez Filament Sentetik Iplik Ve Elyafnayi AS 1-Year Sharpe Ratio Calculation

The 1-Year Sharpe Ratio measures the performance of an investment such as a stock or portfolio compared to a risk-free asset. A stock / portfolio's 1-Year Sharpe Ratio can be calculated by dividing the difference between the one-year returns of the investment and the risk-free rate, by the standard deviation of the investment returns over one year.

Frequently Asked Questions Learn more about 1-Year Sharpe Ratio →
What does a 1-Year Sharpe Ratio of -0.15 mean?
Sonmez Filament Sentetik Iplik Ve Elyafnayi AS (IST:SONME) has a 1-Year Sharpe Ratio of -0.15 as of Aug. 09, 2026. 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk. View historical data for Sonmez Filament Sentetik Iplik Ve Elyafnayi AS and its competitors.
Is Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's 1-Year Sharpe Ratio too high?
Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's current 1-Year Sharpe Ratio is -0.15. Overall, Sonmez Filament Sentetik Iplik Ve Elyafnayi AS has a GF Score™ of 73/100 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 1-Year Sharpe Ratio compare to competitors?
Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's 1-Year Sharpe Ratio of -0.15 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 1-Year Sharpe Ratio for a Manufacturing - Apparel & Accessories company?
A good 1-Year Sharpe Ratio depends on the Manufacturing - Apparel & Accessories industry context. However, 1-Year Sharpe Ratio 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 1-Year Sharpe Ratio mean?
A high 1-Year Sharpe Ratio can signal that a stock is expensive relative to its fundamentals. 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk. View historical data for Sonmez Filament Sentetik Iplik Ve Elyafnayi AS and its competitors. Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's current 1-Year Sharpe Ratio is -0.15. 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 ₺116.14, compared to a current price of ₺120.40 — trading 3.7% above its estimated fair value. The current 1-Year Sharpe Ratio is -0.15. Sonmez Filament Sentetik Iplik Ve Elyafnayi AS's overall GF Score™ is 73/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 1-Year Sharpe Ratio calculated?
1-Year Sharpe Ratio is calculated from a company's financial statements. For Sonmez Filament Sentetik Iplik Ve Elyafnayi AS (IST:SONME), the current 1-Year Sharpe Ratio is -0.15 as of Aug. 09, 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 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 ₺120.40 is trading 3.7% above its estimated GF Value™ of ₺116.14. GuruFocus considers Sonmez Filament Sentetik Iplik Ve Elyafnayi AS to be Fairly Valued.

Key valuation signals for IST:SONME:

  • 1-Year Sharpe Ratio: -0.15
  • GF Value™: ₺116.14 vs. price of ₺120.40 (3.7% above fair value)
  • GF Score™: 73/100 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.
73GF Score

Get the complete analysis for IST:SONME

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

₺120.40
Price
₺116.14
GF Value