BioCryst Pharmaceuticals (BCRX) Short Interest Ratio & Short Volume $7.86 +0.03 (+0.38%) Closing price 03/28/2025 04:00 PM EasternExtended Trading$7.82 -0.04 (-0.51%) As of 03/28/2025 06:54 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 ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock BioCryst Pharmaceuticals Short Interest DataBioCryst Pharmaceuticals (BCRX) has a short interest of 19.77 million shares, representing 10.03% of the float (the number of shares available for trading by the public). This marks a 23.49% increase in short interest from the previous month. The short interest ratio (days to cover) is 6.3, indicating that it would take 6.3 days of the average trading volume of 2.78 million shares to cover all short positions.Current Short Interest19,770,000 sharesPrevious Short Interest16,010,000 sharesChange Vs. Previous Month+23.49%Dollar Volume Sold Short$152.23 millionShort Interest Ratio6.3 Days to CoverLast Record DateMarch 15, 2025Outstanding Shares208,960,000 sharesShort Percent of Float10.03%Today's Trading Volume1,792,585 sharesAverage Trading Volume2,780,980 sharesToday's Volume Vs. Average64% Short Selling BioCryst Pharmaceuticals? Sign up to receive the latest short interest report for BioCryst Pharmaceuticals and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartBCRX Short Interest Over TimeBCRX Days to Cover Over TimeBCRX Percentage of Float Shorted Over Time Remove Ads BioCryst Pharmaceuticals Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 3/15/202519,770,000 shares $152.23 million +23.5%10.0%6.3 $7.70 2/28/202516,010,000 shares $137.85 million -4.0%8.1%5.5 $8.61 2/15/202516,680,000 shares $150.95 million -3.6%8.5%6.6 $9.05 1/31/202517,310,000 shares $136.75 million +1.8%N/A8.1 $7.90 1/15/202517,010,000 shares $122.98 million +8.2%N/A7.6 $7.23 12/31/202415,720,000 shares $118.21 million -9.1%N/A7.7 $7.52 12/15/202417,290,000 shares $130.19 million -10.7%N/A8.7 $7.53 11/30/202419,360,000 shares $145.20 million +4.7%N/A9.9 $7.50 11/15/202418,490,000 shares $129.98 million -11.2%N/A9.3 $7.03 10/31/202420,830,000 shares $166.85 million -7.6%N/A10.7 $8.01 Get the Latest News and Ratings for BCRX and Related StocksEnter your email address below to receive the latest news and analysts' ratings for BioCryst Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. 10/15/202422,530,000 shares $168.52 million -3.0%N/A11.4 $7.48 9/30/202423,230,000 shares $176.55 million -4.5%N/A10.8 $7.60 9/15/202424,320,000 shares $192.61 million +1.1%N/A10.3 $7.92 8/31/202424,060,000 shares $209.08 million -3.0%N/A8.9 $8.69 8/15/202424,810,000 shares $189.30 million +1.8%N/A8.2 $7.63 7/31/202424,380,000 shares $177.49 million +11.8%N/A7.1 $7.28 7/15/202421,810,000 shares $156.60 million +22.0%N/A6 $7.18 6/30/202417,880,000 shares $110.50 million -39.7%N/A5 $6.18 6/15/202429,670,000 shares $183.06 million -18.0%N/A8.1 $6.17 5/31/202436,180,000 shares $233.72 million +5.3%N/A9.9 $6.46 5/15/202434,350,000 shares $218.47 million +2.1%N/A9.5 $6.36 4/30/202433,640,000 shares $138.93 million -2.2%N/A9.9 $4.13 4/15/202434,390,000 shares $160.60 million +6.6%N/A11 $4.67 3/31/202432,250,000 shares $163.83 million +5.6%N/A9.8 $5.08 3/15/202430,550,000 shares $152.75 million +5.0%N/A9.3 $5.00 2/29/202429,100,000 shares $163.83 million -1.1%N/A7.4 $5.63 2/15/202429,410,000 shares $165.87 million +1.3%N/A7.6 $5.64 1/31/202429,040,000 shares $153.91 million +3.5%N/A7.6 $5.30 1/15/202428,050,000 shares $178.12 million -6.8%N/A7.1 $6.35 12/31/202330,080,000 shares $180.18 million +1.0%N/A7.4 $5.99 12/15/202329,780,000 shares $184.34 million +1.4%N/A7.8 $6.19 11/30/202329,380,000 shares $172.75 million -0.3%N/A8.5 $5.88 11/15/202329,470,000 shares $153.54 million -2.2%N/A10.3 $5.21 10/31/202330,130,000 shares $165.41 million -31.8%N/A10.9 $5.49 10/15/202344,190,000 shares $262.49 million +4.3%N/A15.5 $5.94 9/30/202342,390,000 shares $300.12 million -0.3%N/A17 $7.08 9/15/202342,500,000 shares $291.13 million +2.9%N/A16.9 $6.85 8/31/202341,300,000 shares $293.64 million +3.1%N/A16.3 $7.11 8/15/202340,060,000 shares $278.02 million +2.7%N/A15.2 $6.94 7/31/202339,000,000 shares $288.21 million +3.4%N/A14.7 $7.39The unusual signal flashing green again (Ad)Something fascinating happened in April... While a lot of Wall Street institutions were opening new positions in a falling stock, something different showed up on my screen. A special set of candles had just turned green - signaling the kind of momentum surge I'd seen only a handful of times before. What happened next? The stock soared 45% on the underlying stock in just a few weeks and 227% for anyone who traded the options. Naturally, there would have been smaller wins and those that would not have worked out, but this wasn't some penny stock or crypto play… It was ARM Holdings - a major semiconductor player that had just shed 9% of its value.I’ve put together everything you need to know here. 7/15/202337,730,000 shares $269.01 million +0.9%N/A14.9 $7.13 6/30/202337,390,000 shares $263.23 million +5.4%N/A13.8 $7.04 6/15/202335,480,000 shares $283.13 million -0.3%N/A12.9 $7.98 5/31/202335,580,000 shares $294.25 million +10.2%N/A13 $8.27 5/15/202332,300,000 shares $283.27 million +3.5%N/A11 $8.77 4/30/202331,200,000 shares $237.43 million +2.8%N/A10.2 $7.61 4/15/202330,360,000 shares $245.01 million -2.8%N/A10.5 $8.07 3/31/202331,220,000 shares $260.37 million +1.3%N/A10.7 $8.34 3/15/202330,810,000 shares $257.88 million +4.5%N/A10.3 $8.37 2/28/202329,480,000 shares $260.90 million +9.2%N/A9.9 $8.85 2/15/202326,990,000 shares $274.22 million +1.2%N/A9.7 $10.16 1/31/202326,680,000 shares $281.47 million +2.2%N/A10.2 $10.55 1/15/202326,110,000 shares $265.28 million -4.2%N/A8.8 $10.16 12/30/202227,240,000 shares $312.72 million -1.6%N/A9.6 $11.48 12/15/202227,680,000 shares $299.22 million +0.3%N/A10.3 $10.81 11/30/202227,610,000 shares $368.87 million -0.9%N/A10.3 $13.36 11/15/202227,870,000 shares $369.00 million +0.9%N/A10.7 $13.24 10/31/202227,630,000 shares $368.86 million -2.3%N/A10.5 $13.35 10/15/202228,290,000 shares $382.76 million +0.6%N/A11 $13.53 9/30/202228,130,000 shares $354.44 million -2.4%N/A10.9 $12.60 9/15/202228,820,000 shares $369.76 million +3.3%N/A10.5 $12.83 8/31/202227,910,000 shares $387.95 million +2.1%N/A9.7 $13.90 8/15/202227,350,000 shares $405.05 million -7.9%N/A9.1 $14.81 7/31/202229,680,000 shares $327.07 million -5.7%N/A8.7 $11.02 7/15/202231,460,000 shares $366.51 million +0.5%N/A8.5 $11.65 6/30/202231,300,000 shares $331.15 million +5.4%N/A6.4 $10.58 6/15/202229,690,000 shares $276.12 million +0.5%N/A6.2 $9.30 5/31/202229,550,000 shares $275.11 million -0.3%N/A6.3 $9.31 5/15/202229,650,000 shares $248.76 million -3.4%N/A6.1 $8.39 4/30/202230,690,000 shares $285.11 million +7.5%N/A6.4 $9.29 4/15/202228,550,000 shares $325.18 million +11.7%N/A6.5 $11.39 3/31/202225,570,000 shares $415.77 million -5.4%N/A5.6 $16.26 3/15/202227,030,000 shares $409.77 million +2.0%N/A6.9 $15.16 2/28/202226,500,000 shares $440.17 million +2.6%N/A7 $16.61 2/15/202225,820,000 shares $484.38 million +3.2%14.7%6.9 $18.76 1/31/202225,020,000 shares $386.56 million -1.8%14.1%7.1 $15.45 1/15/202225,470,000 shares $394.28 million -2.3%14.4%7 $15.48 12/31/202126,080,000 shares $361.21 million +6.3%14.8%8 $13.85 12/15/202124,540,000 shares $291.29 million +1.5%14.0%8.7 $11.87 11/30/202124,180,000 shares $291.61 million +7.2%13.7%8.9 $12.06 11/15/202122,550,000 shares $267.67 million +10.4%12.7%8.6 $11.87 10/29/202120,420,000 shares $304.87 million +7.6%11.5%7.4 $14.93 10/15/202118,970,000 shares $287.02 million +2.3%10.7%7.2 $15.13 9/30/202118,540,000 shares $266.42 million -2.3%10.5%6.9 $14.37 9/15/202118,980,000 shares $286.03 million -1.6%10.7%6.8 $15.07 8/31/202119,290,000 shares $307.10 million -6.1%10.9%6.5 $15.92 8/13/202120,540,000 shares $331.72 million +11.9%11.6%6.4 $16.15 7/30/202118,350,000 shares $295.80 million -0.1%10.5%5.4 $16.12 7/15/202118,370,000 shares $290.25 million -4.1%10.5%5.3 $15.80 6/30/202119,150,000 shares $302.76 million -2.0%10.9%5.2 $15.81The unusual signal flashing green again (Ad)Something fascinating happened in April... While a lot of Wall Street institutions were opening new positions in a falling stock, something different showed up on my screen. A special set of candles had just turned green - signaling the kind of momentum surge I'd seen only a handful of times before. What happened next? The stock soared 45% on the underlying stock in just a few weeks and 227% for anyone who traded the options. Naturally, there would have been smaller wins and those that would not have worked out, but this wasn't some penny stock or crypto play… It was ARM Holdings - a major semiconductor player that had just shed 9% of its value.I’ve put together everything you need to know here. 6/15/202119,530,000 shares $304.86 million -2.4%11.1%5.1 $15.61 5/28/202120,010,000 shares $315.56 million -9.6%11.4%4.3 $15.77 5/14/202122,130,000 shares $264.67 million -3.6%N/A4.3 $11.96 4/30/202122,950,000 shares $278.15 million -8.1%N/A4.1 $12.12 4/15/202124,980,000 shares $254.55 million +7.0%N/A3.7 $10.19 3/31/202123,350,000 shares $233.27 million -12.5%N/A3.3 $9.99 3/15/202126,680,000 shares $337.24 million -7.8%N/A3.5 $12.64 2/26/202128,920,000 shares $302.79 million +0.2%N/A3.5 $10.47 2/12/202128,860,000 shares $265.51 million -8.5%N/A3.5 $9.20 1/29/202131,530,000 shares $274.63 million +1.9%N/A4 $8.71 1/15/202130,950,000 shares $265.86 million No ChangeN/A4.6 $8.59 12/31/202030,950,000 shares $232.13 million -16.4%N/A4.7 $7.50 12/15/202037,040,000 shares $314.84 million -1.0%N/A5.5 $8.50 11/30/202037,420,000 shares $191.96 million -1.7%N/A6.2 $5.13 11/15/202038,070,000 shares $167.89 million -7.9%N/A7.6 $4.41 10/30/202041,320,000 shares $154.12 million +8.5%N/A8.1 $3.73 10/15/202038,100,000 shares $147.83 million +4.7%N/A6.8 $3.88 9/30/202036,390,000 shares $125.00 million +5.0%N/A6.2 $3.44 9/15/202034,650,000 shares $138.60 million +3.3%N/A5.3 $4.00 8/31/202033,560,000 shares $139.27 million -11.7%N/A4.8 $4.15 8/14/202038,010,000 shares $163.44 million +11.8%N/A5.2 $4.30 7/31/202034,000,000 shares $138.38 million +9.3%N/A4.1 $4.07 7/15/202031,100,000 shares $162.50 million -3.1%N/A3.2 $5.23 6/30/202032,100,000 shares $152.96 million +55.6%N/A2.9 $4.77 6/15/202020,630,000 shares $92.63 million +11.9%N/A2 $4.49 5/29/202018,430,000 shares $82.75 million +8.0%N/A1.7 $4.49 5/15/202017,070,000 shares $90.30 million -4.6%N/A1.6 $5.29 4/30/202017,890,000 shares $69.95 million +1.5%N/A1.9 $3.91 4/15/202017,630,000 shares $47.60 million +11.2%N/A2.3 $2.70 3/31/202015,860,000 shares $56.46 million -1.2%N/A2.8 $3.56 BCRX Short Interest - Frequently Asked Questions What is BioCryst Pharmaceuticals' current short interest? Short interest is the volume of BioCryst Pharmaceuticals shares that have been sold short but have not yet been closed out or covered. As of March 15th, traders have sold 19,770,000 shares of BCRX short. 10.03% of BioCryst Pharmaceuticals' shares are currently sold short. Learn More on BioCryst Pharmaceuticals' current short interest. What is a good short interest ratio for BioCryst Pharmaceuticals? 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. BCRX shares currently have a short interest ratio of 6.0. Learn More on BioCryst Pharmaceuticals's short interest ratio. Which institutional investors are shorting BioCryst Pharmaceuticals? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of BioCryst Pharmaceuticals: Wolverine Trading LLC, Group One Trading LLC, Caption Management LLC, Citadel Advisors LLC, Jane Street Group LLC, Susquehanna International Group LLP, Concourse Financial Group Securities Inc., Walleye Capital LLC, and Barclays PLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for BioCryst Pharmaceuticals? 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. 10.03% of BioCryst Pharmaceuticals' floating shares are currently sold short. Is BioCryst Pharmaceuticals' short interest increasing or decreasing? BioCryst Pharmaceuticals saw a increase in short interest in the month of March. As of March 15th, there was short interest totaling 19,770,000 shares, an increase of 23.5% from the previous total of 16,010,000 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. How does BioCryst Pharmaceuticals' short interest compare to its competitors? 10.03% of BioCryst Pharmaceuticals' shares are currently sold short. Here is how the short interest of companies in the industry of "biotechnology" compare to BioCryst Pharmaceuticals: Alkermes plc (8.17%), Ionis Pharmaceuticals, Inc. (8.29%), Amicus Therapeutics, Inc. (5.97%), Ligand Pharmaceuticals Incorporated (5.37%), Dynavax Technologies Co. (14.86%), MannKind Co. (9.67%), Celldex Therapeutics, Inc. (14.34%), Novavax, Inc. (23.68%), OPKO Health, Inc. (36.59%), Geron Co. (7.79%), 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 ($26.28 billion), iShares 20+ Year Treasury Bond ETF ($9.53 billion), MicroStrategy Incorporated ($8.50 billion), Apollo Global Management, Inc. ($4.86 billion), Super Micro Computer, Inc. ($4.85 billion), Charter Communications, Inc. ($4.28 billion), Capital One Financial Co. ($4.08 billion), AppLovin Co. ($3.82 billion), Canadian Natural Resources Limited ($3.78 billion), and Schlumberger Limited ($2.87 billion). View all of the most shorted stocks. What does it mean to sell short BioCryst Pharmaceuticals stock? Short selling BCRX is an investing strategy that aims to generate trading profit from BioCryst Pharmaceuticals as its price is falling. BCRX shares are trading up $0.03 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 BioCryst Pharmaceuticals? A short squeeze for BioCryst Pharmaceuticals 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 BCRX, which in turn drives the price of the stock up even further. How often is BioCryst Pharmaceuticals' 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 BCRX, twice per month. The most recent reporting period available is March, 15 2025. 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