Nephros (NEPH) Short Interest Ratio & Short Volume $2.63 +0.37 (+16.37%) Closing price 03:47 PM EasternExtended Trading$2.64 +0.00 (+0.19%) As of 07:28 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Nephros Short Interest DataNephros (NEPH) has a short interest of 8,100 shares, representing 0.09% of the float (the number of shares available for trading by the public). This marks a -28.95% decrease in short interest from the previous month. The short interest ratio (days to cover) is 0.6, indicating that it would take 0.6 days of the average trading volume of 12,163 shares to cover all short positions.Current Short Interest8,100 sharesPrevious Short Interest11,400 sharesChange Vs. Previous Month-28.95%Dollar Volume Sold Short$16,200.00Short Interest Ratio0.6 Days to CoverLast Record DateApril 30, 2025Outstanding Shares10,600,000 sharesFloat Size9,240,000 sharesShort Percent of Float0.09%Today's Trading Volume71,249 sharesAverage Trading Volume12,163 sharesToday's Volume Vs. Average586% Short Selling Nephros? Sign up to receive the latest short interest report for Nephros and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartNEPH Short Interest Over TimeNEPH Days to Cover Over TimeNEPH Percentage of Float Shorted Over Time Nephros Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 4/30/20258,100 shares $16,200.00 -29.0%0.1%0.6 $2.00 4/15/202511,400 shares $22,731.60 -45.7%0.1%0.8 $1.99 3/31/202521,000 shares $36,120.00 +8.3%0.2%1.4 $1.72 3/15/202519,400 shares $30,846.00 +133.7%0.2%1.4 $1.59 2/28/20258,300 shares $12,533.00 -13.5%0.1%0.6 $1.51 2/15/20259,600 shares $14,592.00 +92.0%0.1%0.7 $1.52 1/31/20255,000 shares $7,950.00 -30.6%0.1%0.5 $1.59 1/15/20257,200 shares $11,520.00 +67.4%0.1%0.8 $1.60 12/31/20244,300 shares $6,321.00 -12.2%0.1%0.5 $1.47 12/15/20244,900 shares $7,595.00 -36.4%0.1%0.4 $1.55 Get the Latest News and Ratings for NEPH and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Nephros and its competitors with MarketBeat's FREE daily newsletter. 11/30/20247,700 shares $11,935.00 No Change0.1%0.7 $1.55 11/15/20247,700 shares $12,012.00 -30.6%0.1%0.7 $1.56 10/31/202411,100 shares $16,095.00 +1,750.0%0.1%1 $1.45 10/15/2024600 shares $876.00 -76.9%0.0%0 $1.46 9/30/20242,600 shares $4,446.00 -25.7%0.0%0.2 $1.71 9/15/20243,500 shares $6,518.19 -23.9%0.0%0.3 $1.86 8/31/20244,600 shares $8,418.00 +119.1%0.1%0.4 $1.83 8/15/20242,100 shares $3,927.00 -30.0%0.0%0.2 $1.87 7/31/20243,000 shares $6,570.00 +76.5%0.0%0.2 $2.19 7/15/20241,700 shares $3,740.00 -55.3%0.0%0.1 $2.20 6/30/20243,800 shares $8,018.00 +52.0%0.0%0.3 $2.11 6/15/20242,500 shares $5,275.00 +316.7%0.0%0.2 $2.11 5/31/2024600 shares $1,308.00 -81.3%0.0%0 $2.18 5/15/20243,200 shares $6,560.00 +33.3%0.0%0.2 $2.05 4/30/20242,400 shares $5,448.00 +50.0%0.0%0.1 $2.27 4/15/20241,600 shares $3,184.00 -38.5%0.0%0.1 $1.99 3/31/20242,600 shares $5,694.00 +44.4%0.0%0.1 $2.19 3/15/20241,800 shares $3,906.00 -64.7%0.0%0.1 $2.17 2/29/20245,100 shares $16,116.00 +24.4%0.1%0.2 $3.16 2/15/20244,100 shares $14,391.00 -40.6%0.0%0.1 $3.51 1/31/20246,900 shares $24,495.00 -24.2%0.1%0.2 $3.55 1/15/20249,100 shares $31,213.00 -18.0%0.1%0.3 $3.43 12/31/202311,100 shares $38,406.00 -57.3%0.1%0.4 $3.46 12/15/202326,000 shares $74,880.00 -14.8%0.3%1.1 $2.88 11/30/202330,500 shares $69,845.00 +23.0%0.3%2.7 $2.29 11/15/202324,800 shares $51,336.00 +10.7%0.3%2.9 $2.07 10/31/202322,400 shares $36,957.76 -27.7%0.2%2.5 $1.65 10/15/202331,000 shares $50,840.00 +36.0%0.3%3.7 $1.64 9/30/202322,800 shares $33,744.00 -24.0%0.3%2.7 $1.48 9/15/202330,000 shares $42,600.00 -19.8%0.3%4.5 $1.42The DOJ Just Said Your Money Isn’t Yours (Ad)What If Washington Declared That: YOUR Money ISN'T Actually Yours? 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It means Washington thinks they can seize, freeze, or drain your accounts—whenever they want.Get your free guide now by clicking here >> 8/31/202337,400 shares $61,336.00 -13.0%0.4%3.7 $1.64 8/15/202343,000 shares $64,930.00 +80.7%0.5%0.6 $1.51 7/31/202323,800 shares $32,844.00 -5.9%0.3%0.3 $1.38 7/15/202325,300 shares $35,420.00 -10.6%0.3%0.3 $1.40 6/30/202328,300 shares $43,865.00 -6.0%0.3%0.4 $1.55 6/15/202330,100 shares $44,849.00 +51.3%0.3%0.4 $1.49 5/31/202319,900 shares $31,840.00 +9.9%0.2%0.2 $1.60 5/15/202318,100 shares $22,697.40 -13.8%0.2%1.1 $1.25 4/30/202321,000 shares $29,820.00 -7.9%0.2%1.3 $1.42 4/15/202322,800 shares $32,376.00 -4.6%0.3%1.3 $1.42 3/31/202323,900 shares $25,570.61 +17.7%0.3%1.3 $1.07 3/15/202320,300 shares $20,503.00 -18.8%0.2%1 $1.01 2/28/202325,000 shares $27,250.00 +12.6%0.3%1.1 $1.09 2/15/202322,200 shares $29,304.00 +30.6%N/A0.8 $1.32 1/31/202317,000 shares $22,948.30 -32.5%N/A0.6 $1.35 1/15/202325,200 shares $29,736.00 +50.9%N/A0.9 $1.18 12/30/202216,700 shares $19,325.24 -51.2%N/A0.6 $1.16 12/15/202234,200 shares $37,339.56 +12.1%N/A1.2 $1.09 11/30/202230,500 shares $31,720.00 +64.0%N/A1.1 $1.04 11/15/202218,600 shares $19,768.08 -14.3%N/A0.3 $1.06 10/31/202221,700 shares $22,785.00 -35.6%N/A0.4 $1.05 10/15/202233,700 shares $38,418.00 +15.4%N/A0.6 $1.14 9/30/202229,200 shares $26,572.00 +15.0%0.3%0.5 $0.91 9/15/202225,400 shares $30,734.00 -52.3%0.3%0.4 $1.21 8/31/202253,200 shares $75,012.00 +51.1%0.6%1 $1.41 8/15/202235,200 shares $60,192.00 +2.3%0.4%1.5 $1.71 7/31/202234,400 shares $51,256.00 +5.2%0.4%0.7 $1.49 7/15/202232,700 shares $50,031.00 -22.5%N/A0.6 $1.53 6/30/202242,200 shares $64,566.00 +32.7%N/A0.9 $1.53 6/15/202231,800 shares $51,834.00 -37.7%N/A0.7 $1.63 5/31/202251,000 shares $94,350.00 +82.1%0.6%0.8 $1.85 5/15/202228,000 shares $57,400.00 No Change0.3%0.4 $2.05 4/30/202228,000 shares $111,440.00 +7.7%0.3%0.7 $3.98 4/15/202226,000 shares $117,520.00 -3.0%0.3%0.8 $4.52 3/31/202226,800 shares $117,920.00 -15.2%0.3%0.8 $4.40 3/15/202231,600 shares $122,924.00 +26.4%0.4%0.9 $3.89 2/28/202225,000 shares $113,250.00 -13.2%0.3%1 $4.53 2/15/202228,800 shares $139,680.00 +20.0%0.3%1.5 $4.85 1/31/202224,000 shares $110,880.00 +3.9%0.3%1.5 $4.62 1/15/202223,100 shares $121,275.00 +9.0%0.3%1.7 $5.25 12/31/202121,200 shares $125,080.00 +12.8%0.2%1.8 $5.90 12/15/202118,800 shares $132,916.00 +5.0%0.2%2.3 $7.07 11/30/202117,900 shares $124,405.00 +16.2%0.2%2.5 $6.95 11/15/202115,400 shares $115,500.00 -3.8%0.2%2.3 $7.50 10/29/202116,000 shares $125,440.00 +8.8%0.2%2.3 $7.84 10/15/202114,700 shares $114,072.00 -9.8%0.2%2 $7.76 9/30/202116,300 shares $142,951.00 -10.9%0.2%2.4 $8.77 9/15/202118,300 shares $163,785.00 +24.5%0.2%2 $8.95 8/31/202114,700 shares $120,687.00 +17.6%0.2%1.7 $8.21 8/13/202112,500 shares $99,000.00 -28.2%0.1%1.4 $7.92A grave, grave error. 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Here’s the full story for you. 7/30/202117,400 shares $145,464.00 +0.6%0.2%1.9 $8.36 7/15/202117,300 shares $156,046.00 -44.7%0.2%1.7 $9.02 6/30/202131,300 shares $317,657.44 +82.0%0.4%3 $10.15 6/15/202117,200 shares $154,800.00 +22.9%0.2%1.5 $9.00 5/28/202114,000 shares $122,500.00 +15.7%0.2%1.1 $8.75 5/14/202112,100 shares $97,042.00 No ChangeN/A0.9 $8.02 4/30/202112,100 shares $95,469.00 +3.4%N/A0.8 $7.89 4/15/202111,700 shares $90,090.00 +9.4%N/A0.7 $7.70 3/31/202110,700 shares $73,509.00 +18.9%N/A0.6 $6.87 3/15/20219,000 shares $67,590.00 -9.1%N/A0.5 $7.51 2/26/20219,900 shares $75,933.00 -20.8%N/A0.6 $7.67 2/12/202112,500 shares $106,875.00 +54.3%N/A0.6 $8.55 1/29/20218,100 shares $68,283.00 -8.0%N/A0.4 $8.43 1/15/20218,800 shares $70,400.00 -3.3%N/A0.6 $8.00 12/31/20209,100 shares $75,803.00 -18.0%N/A0.6 $8.33 12/15/202011,100 shares $82,029.00 +26.1%N/A0.7 $7.39 11/30/20208,800 shares $53,328.00 +23.9%N/A0.6 $6.06 11/15/20207,100 shares $44,446.00 -65.5%N/A0.5 $6.26 10/30/202020,600 shares $131,840.00 -7.6%N/A1.8 $6.40 10/15/202022,300 shares $148,072.00 +75.6%N/A1.9 $6.64 9/30/202012,700 shares $91,821.00 -26.2%N/A1 $7.23 9/15/202017,200 shares $121,260.00 +4.9%N/A1.4 $7.05 NEPH Short Interest - Frequently Asked Questions What is Nephros' current short interest? Short interest is the volume of Nephros shares that have been sold short but have not yet been covered or closed out. As of April 30th, traders have sold 8,100 shares of NEPH short. 0.09% of Nephros' shares are currently sold short. Learn More on Nephros' current short interest. What is a good short interest ratio for Nephros? The short interest ratio, also known as the "days to cover ratio", is calculated by dividing the number of shares of a stock sold short divided by its average trading volume. A short interest ratio ranging between 1 and 4 generally indicates strong positive sentiment about a stock and a lack of short sellers. A short interest ratio of 10 or greater indicates strong pessimism about a stock. NEPH shares currently have a short interest ratio of 1.0. Learn More on Nephros's short interest ratio. What is a good short interest percentage for Nephros? Companies that have a short interest as a percentage of float below 10% indicates positive investor sentiment and few short sellers. Stocks with a short interest percentage above 10% is considered high, suggesting some investors are pessimistic about the stock. Companies with a short interest percentage of 20% or more indicates widespread negative sentiment. 0.09% of Nephros' floating shares are currently sold short. Is Nephros' short interest increasing or decreasing? Nephros saw a decrease in short interest in the month of April. As of April 30th, there was short interest totaling 8,100 shares, a decrease of 28.9% from the previous total of 11,400 shares. Changes in short volume can be used to identify positive and negative investor sentiment. Investors that short sell a stock are betting that its price will decline in the future. An increase in short sale volume suggests bearish (negative) sentiment among investors. A decrease on short sale volume suggests bullish (positive) sentiment. What is Nephros' float size? Nephros currently has issued a total of 10,600,000 shares. Some of Nephros' outstanding shares are available for trading, while others are subject to various restrictions. The public float, also referred to as floating shares or "the float", are shares that publicly owned, unrestricted and available to trade on the open market. Nephros currently has a public float of 9,240,000 shares. How does Nephros' short interest compare to its competitors? 0.09% of Nephros' shares are currently sold short. Here is how the short interest of companies in the industry of "medical equipment" compare to Nephros: Edap Tms S.A. (0.25%), Fractyl Health, Inc. (12.79%), FONAR Co. (0.16%), Sensus Healthcare, Inc. (5.95%), Inovio Pharmaceuticals, Inc. (17.74%), Nutriband Inc. (3.80%), Zynex, Inc. (21.28%), Vivani Medical, Inc. (1.06%), Outset Medical, Inc. (32.00%), Hyperfine, Inc. (2.40%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Spotify Technology S.A. ($4.67 billion), Charter Communications, Inc. ($4.58 billion), Capital One Financial Co. ($4.47 billion), The Kroger Co. ($2.56 billion), Reddit, Inc. ($2.23 billion), Rivian Automotive, Inc. ($2.16 billion), Live Nation Entertainment, Inc. ($1.90 billion), SoFi Technologies, Inc. ($1.85 billion), Zscaler, Inc. ($1.75 billion), and Omnicom Group Inc. ($1.75 billion). View all of the most shorted stocks. What does it mean to sell short Nephros stock? Short selling NEPH is an investing strategy that aims to generate trading profit from Nephros as its price is falling. NEPH shares are trading up $0.22 today. To short a stock, an investor borrows shares, sells them and buys the shares back on the public market later to return it to the lender. Short sellers are betting that a stock will decline in price. If the stock does drop after selling, the short seller buys it back at a lower price and returns it to the lender. The difference between the sell price and the buy price is the trader's profit. How does a short squeeze work against Nephros? A short squeeze for Nephros occurs when it has a large amount of short interest and its stock appreciates in price. This forces short sellers to cover their short interest positions by buying actual shares of NEPH, which in turn drives the price of the stock up even further. How often is Nephros' short interest reported? Short interest is typically published by a stock exchange once per month. However, NASDAQ publishes a report for U.S. stocks, including NEPH, twice per month. The most recent reporting period available is April, 30 2025. More Short Interest Resources from MarketBeat Related Companies Edap Tms Short Squeeze Fractyl Health Short Squeeze FONAR Short Squeeze Sensus Healthcare Short Squeeze Inovio Pharmaceuticals Short Squeeze Nutriband Short Squeeze Zynex Short Squeeze Vivani Medical Short Squeeze Outset Medical Short Squeeze Hyperfine Short Squeeze Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:NEPH) was last updated on 5/22/2025 by MarketBeat.com Staff From Our PartnersEveryone’s watching Nvidia right now. 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