NASDAQ: NEPH
Nephros Inc Stock

$3.15-0.05 (-1.56%)
Updated Jun 18, 2026
NEPH Price
$3.15
Fair Value Price
-$2.35
Market Cap
$34.20M
52 Week Low
$2.66
52 Week High
$6.42
P/E
52.5x
P/B
3.2x
P/S
1.66x
PEG
N/A
Dividend Yield
N/A
Revenue
$19.12M
Earnings
$776.00k
Gross Margin
59.9%
Operating Margin
4.13%
Profit Margin
4.1%
Debt to Equity
0.29
Operating Cash Flow
-$348k
Beta
0.65
Next Earnings
Aug 6, 2026
Ex-Dividend
N/A
Next Dividend
N/A

NEPH Overview

Nephros, Inc. is a company that specializes in developing and marketing sophisticated water purification solutions across the United States, catering to both the medical and commercial sectors. Its operations are structured into three primary segments: Water Filtration, Pathogen Detection, and Renal Products. Within its Water Filtration division, Nephros offers advanced ultrafiltration products. These are vital in dialysis centers for eradicating biological contaminants from water and bicarbonate concentrate, and are also deployed in hospitals to prevent infections from waterborne pathogens such as Legionella and Pseudomonas. Their utility extends to military installations, outdoor recreation, commercial establishments, and various other healthcare facilities. The Pathogen Detection segment focuses on developing and distributing real-time water testing systems, which deliver critical, actionable data regarding waterborne pathogens. Furthermore, under its Renal Products segment, the company provides medical devices designed for individuals suffering from renal disease, notably including a second-generation hemodiafiltration system tailored for patients with end-stage renal disease. Additionally, Nephros markets a range of water filters under the Nephros and AETHER brands. These filters are engineered not only to enhance water taste and eliminate odors but also to significantly reduce biofilm, bacteria, and scale accumulation in downstream equipment, serving the food service, hospitality, convenience store, and healthcare industries. Established in 1997, Nephros, Inc. maintains its corporate headquarters in South Orange, New Jersey.

Zen Rating

Our proven quant model uses 115 proprietary factors, including AI, to determine NEPH's potential to beat the market

Zen Rating Component Grades

N/A
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Industry: Medical

Industry Rating
A
NEPH
Ranked
Unranked of 42

Top Ranked Stocks in Industry

Name / TickerPriceZen Rating
$9.42A
$22.02B
$14.87B
View Top Medical Stocks

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NEPH News

Overview

Due Diligence Score

Industry Average (30)
You've viewed Due Diligence Score for 10/10 free stocks. Upgrade to Premium to see how NEPH scored across 33 valuation, financial, forecast, performance, and dividend due diligence checks.

Due Diligence Checks

NEPH ($3.15) is overvalued by 233.9% relative to our estimate of its Fair Value price of -$2.35 based on Discounted Cash Flow (DCF) modelling
Below Fair Value Valuation
NEPH ($3.15) is not significantly undervalued (233.9%) relative to our estimate of its Fair Value price of -$2.35 based on Discounted Cash Flow (DCF) modelling, when including a healthy margin of safety
Significantly Below Fair Value Valuation
NEPH is forecast by analysts... subscribe to Premium to read more.
Below Benjamin Graham Formula Value Valuation
There are 30 more NEPH due diligence checks available for Premium users.

Valuation

NEPH fair value

Fair Value of NEPH stock based on Discounted Cash Flow (DCF)

Price
$3.15
Fair Value
-$2.35
Undervalued by
233.90%
NEPH ($3.15) is overvalued by... subscribe to Premium to read more.
Below Fair Value Valuation
NEPH ($3.15) is not significantly... subscribe to Premium to read more.
Significantly Below Fair Value Valuation
NEPH is forecast by analysts... subscribe to Premium to read more.
Below Benjamin Graham Formula Value Valuation

NEPH price to earnings (PE)

For valuing profitable companies with steady earnings

Company
52.5x
Industry
42.33x
Market
9.47x
NEPH is poor value based... subscribe to Premium to read more.
P/E vs Industry Valuation
NEPH is poor value based... subscribe to Premium to read more.
P/E vs Market Valuation

NEPH price to book (PB)

For valuing companies that are loss-making or have lots of physical asset

Company
3.2x
Industry
3.15x
NEPH is poor value based... subscribe to Premium to read more.
P/B vs Industry Valuation

NEPH's financial health

Profit margin

Revenue
$5.2M
Net Income
$140.0k
Profit Margin
2.7%
NEPH's cash burn is expected... subscribe to Premium to read more.
Interest Coverage Financials
NEPH's profit margin has decreased... subscribe to Premium to read more.
Profit Margin Growth Financials

Assets to liabilities

Assets
$13.8M
Liabilities
$3.1M
Debt to equity
0.29
NEPH's short-term assets ($11.50M) exceed... subscribe to Premium to read more.
Short-term Liabilities Financials
NEPH's short-term assets ($11.50M) exceed... subscribe to Premium to read more.
Long-term Liabilities Financials
NEPH's debt has increased relative... subscribe to Premium to read more.
Shrinking Debt Financials
NEPH's debt to equity ratio... subscribe to Premium to read more.
Healthy Debt to Equity Financials

Cash flow

Operating
-$1.7M
Investing
$0.0
Financing
$289.0k
NEPH's cash and short-term investments... subscribe to Premium to read more.
Debt Coverage Financials

NEPH vs Medical Stocks

TickerZen RatingMarket Cap1d %P/EP/B
NEPH$34.20M-1.56%52.50x3.20x
MLSS$32.68M+9.12%-7.42x14.30x
HBIOC$26.47M-2.17%-2.71x2.64x
ZTEK$44.02M-5.96%-8.04x4.85x
RGNT$22.22M-9.68%-0.18x4.68x

Nephros Stock FAQ

What is Nephros's quote symbol?

(NASDAQ: NEPH) Nephros trades on the NASDAQ under the ticker symbol NEPH. Nephros stock quotes can also be displayed as NASDAQ: NEPH.

If you're new to stock investing, here's how to buy Nephros stock.

What is the 52 week high and low for Nephros (NASDAQ: NEPH)?

(NASDAQ: NEPH) Nephros's 52-week high was $6.42, and its 52-week low was $2.66. It is currently -50.93% from its 52-week high and 18.29% from its 52-week low.

How much is Nephros stock worth today?

(NASDAQ: NEPH) Nephros currently has 10,856,546 outstanding shares. With Nephros stock trading at $3.15 per share, the total value of Nephros stock (market capitalization) is $34.20M.

Nephros stock was originally listed at a price of $1,053.00 in Sep 21, 2004. If you had invested in Nephros stock at $1,053.00, your return over the last 21 years would have been -99.7%, for an annualized return of -24.18% (not including any dividends or dividend reinvestments).

How much is Nephros's stock price per share?

(NASDAQ: NEPH) Nephros stock price per share is $3.15 today (as of Jun 18, 2026).

What is Nephros's Market Cap?

(NASDAQ: NEPH) Nephros's market cap is $34.20M, as of Jun 20, 2026.

Market cap (market capitalization) is the total market value of a publicly traded company's outstanding shares.

Nephros's market cap is calculated by multiplying NEPH's current stock price of $3.15 by NEPH's total outstanding shares of 10,856,546.
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Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.