Carl Zeiss Meditec AG (XSWX:AFX) 10-Year Sortino Ratio: N/A (As of Aug. 16, 2026)

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Director of Data and Quant Analytics at GuruFocus
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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.

XSWX:AFX Carl Zeiss Meditec AG XSWX:AFX
75 GF Score
Price CHF28.14
GF Value CHF64.20
! 3 Warning Signs
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What is Carl Zeiss Meditec AG 10-Year Sortino Ratio?

The 10-Year Sortino Ratio measures the additional return that an investor receives per unit of the downside risk over the past ten years. As of today (2026-08-16), Carl Zeiss Meditec AG's 10-Year Sortino Ratio is Not available.


Carl Zeiss Meditec AG  (XSWX:AFX) 10-Year Sortino Ratio Explanation

The 10-Year Sortino Ratio inidicates the risk-adjusted return of an investment over the past ten year. It is calculated as the annualized result of the average ten-year monthly excess returns divided by the standard deviation of negative returns in the ten-year period. 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.

Differnt from the Sharpe Ratio that penalizes both upside and downside volatility equally, the Sortino Ratio penalizes only those returns falling below a user-specified target or required rate of return. The expected returns here is set to the risk-free rate as well.


Carl Zeiss Meditec AG 10-Year Sortino Ratio Related Terms


XSWX:AFX vs ISRG, BDX, MDLN: 10-Year Sortino Ratio Comparison

For the Medical Instruments & Supplies subindustry, Carl Zeiss Meditec AG's 10-Year Sortino Ratio, along with its competitors' market caps and 10-Year Sortino 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.


Carl Zeiss Meditec AG 10-Year Sortino Ratio vs Medical Devices & Instruments Industry

For the Medical Devices & Instruments industry and Healthcare sector, Carl Zeiss Meditec AG's 10-Year Sortino Ratio distribution charts can be found below:

* The bar in red indicates where Carl Zeiss Meditec AG's 10-Year Sortino Ratio falls into.


XSWX:AFX
75GF Score
Carl Zeiss Meditec AG XSWX:AFX
10-Year Sortino Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Carl Zeiss Meditec AG 10-Year Sortino Ratio Calculation

The 10-Year Sortino Ratio measures the risk-adjusted return of an investment asset or portfolio in the last ten year, focusing specifically on downside risk rather than total risk. A stock / portfolio's 10-Year Sortino Ratio can be calculated by dividing the difference between the ten-year average monthly returns of the investment and the risk-free rate, by the standard deviation of the downside risks over the past ten year.

A downside risk is a potential loss from the asset or investment. The Downside risk here is measured by the downside deviation, which is the standard deviation of negative returns.

Is Carl Zeiss Meditec AG (XSWX:AFX) Overvalued in 2026?

Based on GuruFocus' analysis, Carl Zeiss Meditec AG stock appears to be undervalued. The current stock price of CHF28.14 is trading 56.2% below its estimated GF Value™ of CHF64.20.

Key valuation signals for XSWX:AFX:

  • 10-Year Sortino Ratio: N/A
  • GF Value™: CHF64.20 vs. price of CHF28.14 (56.2% below fair value)
  • GF Score™: 75/100 with 3 warning signs

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


Carl Zeiss Meditec AG Business Description

Address Goschwitzer Strasse 51-52, Jena, TH, DEU, 07745
Carl Zeiss Meditec is one of the largest visioncare technology companies in the world, and it operates in two segments: ophthalmic devices and microsurgery. OPT, which made up about 75% of sales in 2025, includes refractive lasers, surgical ophthalmic devices, equipment for ophthalmic diagnostics, as well as a portfolio of intraocular lenses and disposable medical instruments. With a low-teens share of the market, Zeiss is the second-largest player in the space. MCS is composed of implants, surgical instruments, and visualization devices used during neurosurgery, spine surgery, and otolaryngology surgery. With over 60% market share, Zeiss is the clear leader in the microsurgery space.
75GF Score

Get the complete analysis for XSWX:AFX

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

CHF28.14
Price
CHF64.20
GF Value