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Beta is the sensitivity of the expected excess asset returns to the expected excess market returns. As of today (2026-08-11), Nephros's Beta is 2.2036.
Beta is a measure of the volatility, or systematic risk, of a security or a portfolio in comparison to the market as a whole. We usually compare beta to 1. A beta of 1 indicates that the security's price will move with the market. A beta of less than 1 means that the security will be less volatile than the market. A beta of greater than 1 indicates that the security's price will be more volatile than the market.
Beta is primarily used in the Capital Asset Pricing Model (CAPM) to calculate the Cost of Equity, which can be used in the calculation of WACC %. The formula of Cost of Equity is:
Cost of Equity = Risk-Free Rate of Return + Beta of Asset * (Expected Return of the Market - Risk-Free Rate of Return)
Nephros Beta Related Terms
Nephros Beta Historical Data
* Premium members only.
The historical data trend for Nephros's Beta 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.
For the Medical Instruments & Supplies subindustry, Nephros's Beta, along with its competitors' market caps and Beta 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.
Nephros Beta vs Medical Devices & Instruments Industry
For the Medical Devices & Instruments industry and Healthcare sector, Nephros's Beta distribution charts can be found below:
* The bar in red indicates where Nephros's Beta falls into.
Beta is the sensitivity of the expected excess asset returns to the expected excess market returns. A stock's beta can be calculated by dividing the product of the covariance of the individual stock's returns and the market's returns by the variance of the market's returns over a specified period. Basically, GuruFocus uses the returns calculated over three-year period.
Nephros (NEPH) has a Beta of 2.2036 as of Aug. 11, 2026. Beta is the sensitivity of the expected excess asset returns to the expected excess market returns. View historical data for Nephros and its competitors.
Is Nephros' Beta too high?
Nephros' current Beta is 2.2036. Overall, Nephros has a GF Score™ of 67/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Nephros' Beta compare to MLSS and POCI?
Nephros' Beta of 2.2036 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 Beta for a Medical Devices & Instruments company?
A good Beta depends on the Medical Devices & Instruments industry context. However, Beta 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 Beta mean?
A high Beta can signal that a stock is expensive relative to its fundamentals. Beta is the sensitivity of the expected excess asset returns to the expected excess market returns. View historical data for Nephros and its competitors. Nephros's current Beta is 2.2036. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Nephros stock overvalued right now?
Based on GuruFocus' analysis, Nephros (NEPH) is currently considered Significantly Overvalued. The stock's GF Value™ is $2.97, compared to a current price of $4.27 — trading 43.8% above its estimated fair value. The current Beta is 2.2036. Nephros' overall GF Score™ is 67/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Beta calculated?
Beta is calculated from a company's financial statements. For Nephros (NEPH), the current Beta is 2.2036 as of Aug. 11, 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 Nephros (NEPH) Overvalued in 2026?
Based on GuruFocus' analysis, Nephros stock appears to be overvalued.
The current stock price of $4.27 is trading 43.8% above its estimated GF Value™ of $2.97.
GuruFocus considers Nephros to be Significantly Overvalued.
Key valuation signals for NEPH:
Beta: 2.2036
GF Value™: $2.97 vs. price of $4.27 (43.8% above fair value)
No single metric tells the full story. See the NEPH stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Nephros Inc is a commercial-stage company that develops and sells high-performance water solutions to the medical and commercial markets. In medical markets, it sells water filtration products and waterborne pathogen detection products. In commercial markets, the company manufactures and sells water filters that improve the taste and odor of water and reduce biofilm, bacteria, and scale build-up in downstream equipment. The company's subsidiary is engaged in the development of its second-generation hemodiafiltration system and other products focused on improving therapies for patients with renal disease. The company generates almost all of revenue from product sales and a small amount from royalty revenue and other revenues.
67GF Score
Get the complete analysis for NEPH
Beta is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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