Nautilus Biotechnology (NAUT) Short Interest Ratio & Short Volume $0.78 0.00 (-0.08%) Closing price 05/22/2025 04:00 PM EasternExtended Trading$0.79 +0.00 (+0.26%) As of 05:37 AM 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 TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Nautilus Biotechnology Short Interest DataNautilus Biotechnology (NAUT) has a short interest of 867,400 shares, representing 1.50% of the float (the number of shares available for trading by the public). This marks a 58.03% increase in short interest from the previous month. The short interest ratio (days to cover) is 5.5, indicating that it would take 5.5 days of the average trading volume of 116,892 shares to cover all short positions.Current Short Interest867,400 sharesPrevious Short Interest548,900 sharesChange Vs. Previous Month+58.03%Dollar Volume Sold Short$597,291.64Short Interest Ratio5.5 Days to CoverLast Record DateApril 30, 2025Outstanding Shares126,148,000 sharesFloat Size57,930,000 sharesShort Percent of Float1.50%Today's Trading Volume94,857 sharesAverage Trading Volume116,892 sharesToday's Volume Vs. Average81% Short Selling Nautilus Biotechnology? Sign up to receive the latest short interest report for Nautilus Biotechnology and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartNAUT Short Interest Over TimeNAUT Days to Cover Over TimeNAUT Percentage of Float Shorted Over Time Nautilus Biotechnology Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 4/30/2025867,400 shares $597,291.64 +58.0%1.5%5.5 $0.69 4/15/2025548,900 shares $422,707.89 +29.3%1.0%3.8 $0.77 3/31/2025424,500 shares $365,494.50 +20.5%0.7%3.1 $0.86 3/15/2025352,300 shares $391,053.00 +20.8%0.6%2.5 $1.11 2/28/2025291,600 shares $379,080.00 +3.0%0.5%2.2 $1.30 2/15/2025283,200 shares $484,272.00 +4.1%0.5%2.2 $1.71 1/31/2025272,000 shares $465,120.00 -68.8%0.5%1.9 $1.71 1/15/2025872,900 shares $1.69 million -15.3%1.5%6.1 $1.94 12/31/20241,030,000 shares $1.73 million -14.2%1.8%7.9 $1.68 12/15/20241,200,000 shares $2.34 million +2.6%2.1%10.2 $1.95 Get the Latest News and Ratings for NAUT and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Nautilus Biotechnology and its competitors with MarketBeat's FREE daily newsletter. 11/30/20241,170,000 shares $2.62 million No Change2.0%11 $2.24 11/15/20241,170,000 shares $2.69 million -3.3%2.0%12.9 $2.30 10/31/20241,210,000 shares $3.15 million No Change1.6%14.8 $2.60 10/15/20241,210,000 shares $3.44 million No Change1.6%16.7 $2.84 9/30/20241,210,000 shares $3.45 million -0.8%1.6%16.8 $2.85 9/15/20241,220,000 shares $3.54 million +3.4%1.6%15.8 $2.90 8/31/20241,180,000 shares $3.07 million -0.8%1.6%16.8 $2.60 8/15/20241,190,000 shares $2.75 million -0.8%1.6%16.1 $2.31 7/31/20241,200,000 shares $3.25 million +2.6%1.6%16.2 $2.71 7/15/20241,170,000 shares $3.05 million -3.3%1.6%16.4 $2.61 6/30/20241,210,000 shares $2.83 million +5.2%1.6%17.3 $2.34 6/15/20241,150,000 shares $2.94 million +5.5%1.5%16.4 $2.56 5/31/20241,090,000 shares $2.99 million -0.9%1.5%14.8 $2.74 5/15/20241,100,000 shares $3.16 million -1.8%1.5%14.6 $2.87 4/30/20241,120,000 shares $2.84 million +0.9%2.0%14.5 $2.54 4/15/20241,110,000 shares $2.73 million -7.5%2.0%14.5 $2.46 3/31/20241,200,000 shares $3.53 million -2.4%2.1%15.4 $2.94 3/15/20241,230,000 shares $3.15 million -6.1%2.2%14.5 $2.56 2/29/20241,310,000 shares $3.52 million +6.5%2.1%14.5 $2.69 2/15/20241,230,000 shares $3.76 million No Change2.3%14.6 $3.06 1/31/20241,230,000 shares $3.42 million -0.8%2.3%13.7 $2.78 1/15/20241,240,000 shares $3.86 million -6.1%2.3%12.7 $3.11 12/31/20231,320,000 shares $3.95 million +1.5%2.5%12.7 $2.99 12/15/20231,300,000 shares $4.13 million +4.0%2.5%13.4 $3.18 11/30/20231,250,000 shares $3.44 million -8.8%2.4%14.1 $2.75 11/15/20231,370,000 shares $4.11 million +11.4%2.0%15.7 $3.00 10/31/20231,230,000 shares $3.15 million -6.1%2.3%15.3 $2.56 10/15/20231,310,000 shares $3.75 million -3.7%2.5%16.9 $2.86 9/30/20231,360,000 shares $4.30 million +5.4%2.0%18.8 $3.16 9/15/20231,290,000 shares $5.08 million -1.5%1.9%15 $3.94Buffett’s favorite chart just hit 209% – here’s what that means for gold (Ad)A Historic Gold Announcement Is About to Rock Wall Street For months, sharp-eyed analysts have watched the quiet buildup behind the scenes. 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Get Garrett’s Top Four picks now. 8/31/20231,310,000 shares $4.23 million +8.3%1.9%12.2 $3.23 8/15/20231,210,000 shares $3.74 million +5.2%1.8%10.6 $3.09 7/31/20231,150,000 shares $3.78 million +11.7%1.7%9.9 $3.29 7/15/20231,030,000 shares $3.52 million +11.3%2.3%9.1 $3.42 6/30/2023925,100 shares $3.58 million +107.1%2.0%8.5 $3.87 6/15/2023446,800 shares $1.77 million -24.5%1.0%4.3 $3.97 5/31/2023591,700 shares $1.69 million +29.7%1.3%6 $2.86 5/15/2023456,200 shares $1.16 million +2.8%1.0%4.7 $2.55 4/30/2023443,800 shares $1.15 million +1.6%1.0%4.4 $2.58 4/15/2023436,900 shares $1.24 million -6.9%1.0%3.8 $2.83 3/31/2023469,300 shares $1.30 million -49.7%1.0%3.7 $2.77 3/15/2023932,300 shares $2.06 million +4.3%2.1%6.6 $2.21 2/28/2023894,200 shares $1.90 million -40.4%1.8%6.5 $2.12 2/15/20231,500,000 shares $3.09 million -0.7%3.0%10.9 $2.06 1/31/20231,510,000 shares $2.96 million -1.3%3.1%9.9 $1.96 1/15/20231,530,000 shares $3.15 million +0.7%3.1%9.7 $2.06 12/30/20221,520,000 shares $2.74 million -2.6%3.4%10.1 $1.80 12/15/20221,560,000 shares $2.45 million -2.5%3.5%10.4 $1.57 11/30/20221,600,000 shares $2.90 million -4.8%3.6%10.9 $1.81 11/15/20221,680,000 shares $3.38 million -8.7%3.8%11.3 $2.01 10/31/20221,840,000 shares $4.54 million -2.1%4.2%9.9 $2.47 10/15/20221,880,000 shares $3.84 million -2.1%4.3%9.5 $2.04 9/30/20221,920,000 shares $4.07 million -16.2%4.3%9.4 $2.12 9/15/20222,290,000 shares $5.06 million No Change5.2%7.5 $2.21 8/31/20222,290,000 shares $5.06 million +1.8%5.2%6.6 $2.21 8/15/20222,250,000 shares $6.35 million +0.5%5.1%6 $2.82 7/31/20222,240,000 shares $6.52 million -1.8%5.1%6.2 $2.91 7/15/20222,280,000 shares $6.22 million +3.6%5.2%6.1 $2.73 6/30/20222,200,000 shares $5.92 million +22.2%5.0%5.8 $2.69 6/15/20221,800,000 shares $4.86 million -17.1%4.1%4.8 $2.70 5/31/20222,170,000 shares $7.94 million +15.4%4.9%7.9 $3.66 5/15/20221,880,000 shares $7.03 million +6.2%4.3%7.2 $3.74 4/30/20221,770,000 shares $8.27 million +2.3%3.2%7 $4.67 4/15/20221,730,000 shares $7.01 million -3.4%3.1%6 $4.05 3/31/20221,790,000 shares $7.77 million +12.6%3.2%6 $4.34 3/15/20221,590,000 shares $5.84 million -4.8%2.8%4.4 $3.67 2/28/20221,670,000 shares $6.68 million +10.6%3.0%4.2 $4.00 2/15/20221,510,000 shares $6.10 million -9.0%3.2%3.5 $4.04 1/31/20221,660,000 shares $6.51 million -25.9%5.1%3.6 $3.92 1/15/20222,240,000 shares $9.92 million -54.8%6.7%5 $4.43 12/31/20214,950,000 shares $25.64 million +4.0%14.8%11 $5.18 12/15/20214,760,000 shares $25.09 million +7.0%14.3%10.8 $5.27 11/30/20214,450,000 shares $21.58 million -4.7%13.1%10.2 $4.85 11/15/20214,670,000 shares $25.03 million -6.6%13.7%10.8 $5.36 10/29/20215,000,000 shares $26.70 million +20.8%14.7%11.2 $5.34 10/15/20214,140,000 shares $23.64 million +6.2%12.1%4.7 $5.71 9/30/20213,900,000 shares $23.95 million +6.0%11.4%4.7 $6.14 9/15/20213,680,000 shares $26.16 million +3.1%10.8%4.5 $7.11 8/31/20213,570,000 shares $28.17 million +17.4%10.5%4.7 $7.89 8/13/20213,040,000 shares $23.23 million No Change8.9%4.3 $7.64The Trump Dump is starting; Get out of stocks now? (Ad)The first 365 days of the Trump presidency… Will be the best time to get rich in American history.If I’m right about this (like I was before) a modest $900 investment could grow to a life-changing a NAUT Short Interest - Frequently Asked Questions What is Nautilus Biotechnology's current short interest? Short interest is the volume of Nautilus Biotechnology shares that have been sold short but have not yet been covered or closed out. As of April 30th, traders have sold 867,400 shares of NAUT short. 1.50% of Nautilus Biotechnology's shares are currently sold short. Learn More on Nautilus Biotechnology's current short interest. What is a good short interest ratio for Nautilus Biotechnology? 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. NAUT shares currently have a short interest ratio of 6.0. Learn More on Nautilus Biotechnology's short interest ratio. What is a good short interest percentage for Nautilus Biotechnology? 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. 1.50% of Nautilus Biotechnology's floating shares are currently sold short. Is Nautilus Biotechnology's short interest increasing or decreasing? Nautilus Biotechnology saw a increase in short interest in April. As of April 30th, there was short interest totaling 867,400 shares, an increase of 58.0% from the previous total of 548,900 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 Nautilus Biotechnology's float size? Nautilus Biotechnology currently has issued a total of 126,148,000 shares. Some of Nautilus Biotechnology's 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. Nautilus Biotechnology currently has a public float of 57,930,000 shares. How does Nautilus Biotechnology's short interest compare to its competitors? 1.50% of Nautilus Biotechnology's shares are currently sold short. Here is how the short interest of companies in the industry of "measuring and control equipment" compare to Nautilus Biotechnology: Quantum-Si incorporated (17.07%), Aehr Test Systems (24.05%), Quanterix Co. (7.90%), 908 Devices Inc. (10.68%), Frequency Electronics, Inc. (0.41%), Rapid Micro Biosystems, Inc. (6.80%), Seer, Inc. (5.57%), Kewaunee Scientific Co. (2.17%), Owlet, Inc. (3.82%), Prenetics Global Limited (0.34%), 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 Nautilus Biotechnology stock? Short selling NAUT is an investing strategy that aims to generate trading profit from Nautilus Biotechnology as its price is falling. NAUT shares are trading down $0.00 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 Nautilus Biotechnology? A short squeeze for Nautilus Biotechnology occurs when it has a large amount of short interest and its stock increases in price. This forces short sellers to cover their short interest positions by buying actual shares of NAUT, which in turn drives the price of the stock up even further. How often is Nautilus Biotechnology's 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 NAUT, twice per month. The most recent reporting period available is April, 30 2025. More Short Interest Resources from MarketBeat Related Companies Quantum-Si Short Interest Data Aehr Test Systems Short Interest Data Quanterix Short Interest Data 908 Devices Short Interest Data Frequency Electronics Short Interest Data Rapid Micro Biosystems Short Interest Data Seer Short Interest Data Kewaunee Scientific Short Interest Data Owlet Short Interest Data Prenetics Global Short Interest Data Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:NAUT) was last updated on 5/23/2025 by MarketBeat.com Staff From Our PartnersWhite House to reset Social Security?Elon Musk's parting DOGE gift looks set to shock America... A single announcement by July 22nd could soon b...Altimetry | SponsoredJuly 2025 Rule Change to Impact Retirement InvestorsThere's a massive change from a new rule going into effect this July. 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