Volatility is a statistical measure of the dispersion of returns for a given security or market index, it shows how the price swings around its mean. The volatility here is measured as the annualized standard deviation between monthly returns from the security over the past year. In most cases, the higher the volatility, the riskier the security.
TransMedics Group (NAS:TMDX) Volatility Explanation
Volatility is a statistical measure of the dispersion of returns for a given security or market index. It’s often measured as standard deviation or variance of historical returns over a certain period. The volatility here is measured as the annualized standard deviation between monthly returns from the security over the past year.
Volatility reflects the uncertainty or risk of a security’s value. Generally speaking, a higher volatility suggests a higher risk, because it implies a wider fluctuation around average price. This means the price of the security can change dramatically in either direction within a short period. Conversely, a lower volatility means that the security's price is more steady, which suggests a lower risk.
Another measurement of relative volatility is Beta. Beta is a measure of systematic risk of a security or a portfolio in comparison to the market as a whole. Beta is usually compared to 1. A beta of greater than 1 indicates that the security's price will be more volatile than the market.
TransMedics Group Volatility Related Terms
TMDX vs AXGN, BFLY, ESTA: Volatility Comparison
For the Medical Devices subindustry, TransMedics Group's Volatility, along with its competitors' market caps and Volatility 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.
TransMedics Group Volatility vs Medical Devices & Instruments Industry
For the Medical Devices & Instruments industry and Healthcare sector, TransMedics Group's Volatility distribution charts can be found below:
* The bar in red indicates where TransMedics Group's Volatility falls into.
TransMedics Group (NAS:TMDX) Volatility Calculation
The annualized volatility is calculated as following:
σA
=
σM
*
√12
=
√ 1/(n-1) ∑(Ri - R')^2
*
√12
Where: σM is the monthly volatility, n is the number of months in the period, Ri is the security's historical monthly returns and R' is the arithmetic mean of monthly returns.
* 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.
TransMedics Group (TMDX) has a Volatility of 56.37% as of Jul. 06, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on TransMedics Group and its competitors.
Is TransMedics Group's Volatility too high?
TransMedics Group's current Volatility is 56.37%. Overall, TransMedics Group has a GF Score™ of 69/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does TransMedics Group's Volatility compare to AXGN and BFLY?
TransMedics Group's Volatility of 56.37% can be compared against companies in the Medical Devices & Instruments industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Volatility for a Medical Devices & Instruments company?
A good Volatility depends on the Medical Devices & Instruments industry context. However, Volatility 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 Volatility mean?
A high Volatility can signal that a stock is expensive relative to its fundamentals. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on TransMedics Group and its competitors. TransMedics Group's current Volatility is 56.37%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is TransMedics Group stock overvalued right now?
Based on GuruFocus' analysis, TransMedics Group (TMDX) is currently considered Possible Value Trap. The stock's GF Value™ is $167.77, compared to a current price of $71.23 — trading 57.5% below its estimated fair value. The current Volatility is 56.37%. TransMedics Group's overall GF Score™ is 69/100 with 9 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Volatility calculated?
Volatility is calculated from a company's financial statements. For TransMedics Group (TMDX), the current Volatility is 56.37% as of Jul. 06, 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 TransMedics Group (TMDX) Overvalued in 2026?
Based on GuruFocus' analysis, TransMedics Group stock appears to be undervalued.
The current stock price of $71.23 is trading 57.5% below its estimated GF Value™ of $167.77.
GuruFocus considers TransMedics Group to be Possible Value Trap.
Key valuation signals for TMDX:
Volatility: 56.37%
GF Value™: $167.77 vs. price of $71.23 (57.5% below fair value)
No single metric tells the full story. See the TMDX stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
TransMedics Group Inc is a commercial-stage medical technology company transforming organ transplant therapy for end-stage organ failure patients across multiple disease states. It has developed the Organ Care System (OCS) to comprehensively address the limitations of cold storage. The OCS is a portable organ perfusion, optimization, and monitoring system that utilizes technology to replicate near-physiologic conditions for donor organs outside of the human body. The company has developed and is commercializing a proprietary system to preserve and deliver human organs for transplant in a near-physiologic condition to address the limitations of cold storage organ preservation.
69GF Score
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