Nautilus Biotechnology (NAUT) Short Interest Ratio & Short Volume $0.70 +0.02 (+2.20%) As of 02:17 PM Eastern This is a fair market value 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 548,900 shares, representing 0.95% of the float (the number of shares available for trading by the public). This marks a 29.31% increase in short interest from the previous month. The short interest ratio (days to cover) is 3.8, indicating that it would take 3.8 days of the average trading volume of 109,545 shares to cover all short positions.Current Short Interest548,900 sharesPrevious Short Interest424,500 sharesChange Vs. Previous Month+29.31%Dollar Volume Sold Short$422,707.89Short Interest Ratio3.8 Days to CoverLast Record DateApril 15, 2025Outstanding Shares126,148,000 sharesFloat Size57,930,000 sharesShort Percent of Float0.95%Today's Trading Volume82,791 sharesAverage Trading Volume109,545 sharesToday's Volume Vs. Average76% 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 4/15/2025548,900 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 11/30/20241,170,000 shares $2.62 million No Change2.0%11 $2.24 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. 11/15/20241,170,000 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 $3.94 8/31/20231,310,000 shares $4.23 million +8.3%1.9%12.2 $3.23Virtually Limitless Energy? 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This obscure company could be at the center of the next trillion-dollar energy revolution.One company’s discovery could change power forever 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 $7.64 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 closed out or covered. As of April 15th, investors have sold 548,900 shares of NAUT short. 0.95% 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 4.0. Learn More on Nautilus Biotechnology's short interest ratio. Which institutional investors are shorting Nautilus Biotechnology? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Nautilus Biotechnology: Concourse Financial Group Securities Inc.. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. 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. 0.95% 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 the month of April. As of April 15th, there was short interest totaling 548,900 shares, an increase of 29.3% from the previous total of 424,500 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? 0.95% 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: Aehr Test Systems (26.16%), Quanterix Co. (7.45%), Quantum-Si incorporated (17.10%), 908 Devices Inc. (10.99%), Frequency Electronics, Inc. (0.22%), Seer, Inc. (5.72%), Rapid Micro Biosystems, Inc. (6.95%), Kewaunee Scientific Co. (1.91%), Owlet, Inc. (3.64%), Akoya Biosciences, Inc. (9.96%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Invesco QQQ ($21.71 billion), iShares 20+ Year Treasury Bond ETF ($9.48 billion), Strategy Incorporated ($8.92 billion), Charter Communications, Inc. ($3.86 billion), Apollo Global Management, Inc. ($3.86 billion), Capital One Financial Co. ($3.72 billion), Super Micro Computer, Inc. ($3.47 billion), AppLovin Co. ($2.64 billion), VanEck Semiconductor ETF ($2.46 billion), and The Kroger Co. ($2.33 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 up $0.01 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, 15 2025. More Short Interest Resources from MarketBeat Related Companies Aehr Test Systems Short Interest Data Quanterix Short Interest Data Quantum-Si Short Interest Data 908 Devices Short Interest Data Frequency Electronics Short Interest Data Seer Short Interest Data Rapid Micro Biosystems Short Interest Data Kewaunee Scientific Short Interest Data Owlet Short Interest Data Akoya Biosciences 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 5/2/2025 by MarketBeat.com Staff From Our PartnersTrump’s treachery Trump’s Final Reset Inside the shocking plot to re-engineer America’s financial system…and why you need to ...Porter & Company | SponsoredTrump Orders 'National Digital Asset Stockpile'Billionaires Rush Into Digital Banking Token Three massive forces are converging right now, creating what c...Crypto 101 Media | SponsoredHere’s How to Claim Your Stake in Elon’s Private Company, xAII predict this single breakthrough could make Elon the world’s first trillionaire — and mint more new milliona...Brownstone Research | SponsoredMusk's warning signal: Prepare before the cascade beginsWhen Elon Musk triggered his AI layoff plan, most analysts missed what it really meant. 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