Vir Biotechnology (VIR) Short Interest Ratio & Short Volume $5.58 -0.38 (-6.38%) Closing price 04:00 PM EasternExtended Trading$5.70 +0.13 (+2.24%) As of 07:18 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 InterestTrendsBuy This Stock Vir Biotechnology Short Interest DataVir Biotechnology (VIR) has a short interest of 7.88 million shares, representing 9.02% of the float (the number of shares available for trading by the public). This marks a 1.42% increase in short interest from the previous month. The short interest ratio (days to cover) is 3.9, indicating that it would take 3.9 days of the average trading volume of 1.32 million shares to cover all short positions.Current Short Interest7,880,000 sharesPrevious Short Interest7,770,000 sharesChange Vs. Previous Month+1.42%Dollar Volume Sold Short$56.34 millionShort Interest Ratio3.9 Days to CoverLast Record DateMarch 15, 2025Outstanding Shares137,143,000 sharesFloat Size87,380,000 sharesShort Percent of Float9.02%Today's Trading Volume1,901,462 sharesAverage Trading Volume1,321,217 sharesToday's Volume Vs. Average144% Short Selling Vir Biotechnology? Sign up to receive the latest short interest report for Vir 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 ChartVIR Short Interest Over TimeVIR Days to Cover Over TimeVIR Percentage of Float Shorted Over Time Remove Ads Vir 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 3/15/20257,880,000 shares $56.34 million +1.4%9.0%3.9 $7.15 2/28/20257,770,000 shares $65.19 million +1.3%8.9%3.8 $8.39 2/15/20257,670,000 shares $74.02 million +0.4%8.7%3.8 $9.65 1/31/20257,640,000 shares $79.46 million -2.8%8.7%3.6 $10.40 1/15/20257,860,000 shares $82.53 million +20.0%9.0%3.7 $10.50 12/31/20246,550,000 shares $48.08 million +7.7%7.5%3.4 $7.34 12/15/20246,080,000 shares $45.30 million -1.3%6.9%4.9 $7.45 11/30/20246,160,000 shares $49.03 million +11.8%7.1%5.2 $7.96 11/15/20245,510,000 shares $44.14 million -3.7%6.3%5.3 $8.01 10/31/20245,720,000 shares $42.84 million +3.1%6.4%6.3 $7.49 Get the Latest News and Ratings for VIR and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Vir Biotechnology and its competitors with MarketBeat's FREE daily newsletter. 10/15/20245,550,000 shares $43.01 million -3.1%6.3%7.4 $7.75 9/30/20245,730,000 shares $42.92 million -4.0%6.5%7.2 $7.49 9/15/20245,970,000 shares $48.42 million +1.0%6.8%7.2 $8.11 8/31/20245,910,000 shares $48.82 million +5.0%6.7%6 $8.26 8/15/20245,630,000 shares $48.76 million +13.7%6.4%5.2 $8.66 7/31/20244,950,000 shares $50.29 million +4.2%5.5%4.4 $10.16 7/15/20244,750,000 shares $45.46 million -0.2%5.3%4.1 $9.57 6/30/20244,760,000 shares $42.36 million -30.3%5.3%4.2 $8.90 6/15/20246,830,000 shares $66.59 million +13.5%7.7%6.2 $9.75 5/31/20246,020,000 shares $61.83 million -3.1%6.8%6.1 $10.27 5/15/20246,210,000 shares $62.22 million +5.1%7.0%6.4 $10.02 4/30/20245,910,000 shares $50.00 million +14.8%6.6%5.7 $8.46 4/15/20245,150,000 shares $44.14 million +3.8%5.8%4.8 $8.57 3/31/20244,960,000 shares $50.24 million -8.7%5.6%4.6 $10.13 3/15/20245,430,000 shares $58.43 million +6.9%6.2%5 $10.76 2/29/20245,080,000 shares $57.10 million +0.6%5.8%4.4 $11.24 2/15/20245,050,000 shares $52.07 million -12.5%5.8%4.4 $10.31 1/31/20245,770,000 shares $54.24 million -5.1%6.6%4.9 $9.40 1/15/20246,080,000 shares $63.05 million +2.7%6.9%5.1 $10.37 12/31/20235,920,000 shares $59.56 million -6.0%6.7%4.9 $10.06 12/15/20236,300,000 shares $62.75 million +7.5%7.2%5.1 $9.96 11/30/20235,860,000 shares $55.61 million -4.4%6.7%4.1 $9.49 11/15/20236,130,000 shares $59.34 million No Change7.0%4.3 $9.68 10/31/20236,130,000 shares $48.61 million -4.8%7.0%4.5 $7.93 10/15/20236,440,000 shares $53.90 million +0.2%7.4%4.9 $8.37 9/30/20236,430,000 shares $60.25 million +26.6%7.4%4.1 $9.37 9/15/20235,080,000 shares $49.89 million +11.2%5.8%3.3 $9.82 8/31/20234,570,000 shares $57.86 million -9.2%5.4%3.4 $12.66 8/15/20235,030,000 shares $66.09 million +42.1%5.9%4.1 $13.14 7/31/20233,540,000 shares $49.84 million -10.8%4.2%3 $14.08Trump’s betrayal exposed (Ad)Trump’s Final Reset Inside the shocking plot to re-engineer America’s financial system…and why you need to move your money now.Millions of Americans are about to be wiped out, while others could make a fortune… click here to ma 7/15/20233,970,000 shares $91.67 million -4.3%4.7%3.5 $23.09 6/30/20234,150,000 shares $101.80 million -0.2%4.9%5 $24.53 6/15/20234,160,000 shares $108.08 million -25.5%4.9%5 $25.98 5/31/20235,580,000 shares $148.82 million +10.5%6.6%6.3 $26.67 5/15/20235,050,000 shares $129.48 million +7.5%6.0%5.1 $25.64 4/30/20234,700,000 shares $118.21 million -1.9%5.6%4.6 $25.15 4/15/20234,790,000 shares $117.59 million +11.9%5.7%4.6 $24.55 3/31/20234,280,000 shares $99.60 million -11.2%5.2%4.2 $23.27 3/15/20234,820,000 shares $113.37 million -1.0%5.8%4.8 $23.52 2/28/20234,870,000 shares $111.04 million +10.7%5.9%5.2 $22.80 2/15/20234,400,000 shares $117.57 million +8.9%5.3%5 $26.72 1/31/20234,040,000 shares $119.38 million +8.3%4.9%4.8 $29.55 1/15/20233,730,000 shares $99.11 million -10.1%4.6%4.5 $26.57 12/30/20224,150,000 shares $105.04 million +9.2%5.1%5.1 $25.31 12/15/20223,800,000 shares $95.72 million -5.5%4.7%4.3 $25.19 11/30/20224,020,000 shares $113.44 million -4.5%5.0%4.2 $28.22 11/15/20224,210,000 shares $115.14 million -4.3%5.3%4.2 $27.35 10/31/20224,400,000 shares $96.71 million +4.3%5.6%4 $21.98 10/15/20224,220,000 shares $87.23 million -14.9%5.4%4 $20.67 9/30/20224,960,000 shares $95.63 million +8.3%6.3%4.8 $19.28 9/15/20224,580,000 shares $93.02 million -6.5%5.9%4.2 $20.31 8/31/20224,900,000 shares $116.38 million -14.0%6.3%4.7 $23.75 8/15/20225,700,000 shares $159.03 million -20.6%7.6%5.7 $27.90 7/31/20227,180,000 shares $199.68 million +1.4%9.8%7.4 $27.81 7/15/20227,080,000 shares $205.46 million -6.0%9.7%7.1 $29.02 6/30/20227,530,000 shares $191.79 million +0.9%10.3%7.1 $25.47 6/15/20227,460,000 shares $178.44 million -4.9%10.2%4.6 $23.92 5/31/20227,840,000 shares $202.35 million -5.2%10.8%4.9 $25.81 5/15/20228,270,000 shares $187.15 million -6.7%11.4%5 $22.63 4/30/20228,860,000 shares $180.30 million +4.2%12.3%5.3 $20.35 4/15/20228,500,000 shares $203.41 million +134.8%11.8%5.1 $23.93 3/31/20223,620,000 shares $93.11 million -3.7%5.1%2 $25.72 3/15/20223,760,000 shares $86.44 million +7.4%5.2%2.8 $22.99 2/28/20223,500,000 shares $88.17 million +2.6%4.9%2.3 $25.19 2/15/20223,410,000 shares $109.94 million +16.4%4.8%2 $32.24 1/31/20222,930,000 shares $100.59 million -17.0%4.1%1.7 $34.33 1/15/20223,530,000 shares $136.61 million -9.3%4.9%2 $38.70 12/31/20213,890,000 shares $162.87 million -23.1%5.4%2.6 $41.87 12/15/20215,060,000 shares $261.20 million -8.3%7.0%3.3 $51.62 11/30/20215,520,000 shares $261.76 million +3.6%7.9%4.5 $47.42 11/15/20215,330,000 shares $175.30 million -0.7%7.7%5.8 $32.89 10/29/20215,370,000 shares $202.61 million -1.1%7.8%5.6 $37.73 10/15/20215,430,000 shares $212.26 million +3.4%7.9%5.6 $39.09 9/30/20215,250,000 shares $228.48 million -8.1%7.7%5.4 $43.52 9/15/20215,710,000 shares $298.69 million -2.9%8.3%6.2 $52.31 8/31/20215,880,000 shares $303.06 million -13.2%8.6%6.7 $51.54 8/13/20216,770,000 shares $286.98 million -14.6%9.9%7.5 $42.39 7/30/20217,930,000 shares $282.70 million -7.9%11.6%10.1 $35.65 7/15/20218,610,000 shares $312.28 million +2.3%12.4%12.1 $36.27 6/30/20218,420,000 shares $398.10 million -6.6%12.3%11.6 $47.28Trump’s betrayal exposed (Ad)Trump’s Final Reset Inside the shocking plot to re-engineer America’s financial system…and why you need to move your money now.Millions of Americans are about to be wiped out, while others could make a fortune… click here to ma 6/15/20219,010,000 shares $394.10 million +4.7%14.2%12.7 $43.74 5/28/20218,610,000 shares $360.85 million +0.8%13.6%9.6 $41.91 5/14/20218,540,000 shares $337.76 million +1.8%13.6%8.1 $39.55 4/30/20218,390,000 shares $401.29 million +1.9%14.0%7.2 $47.83 4/15/20218,230,000 shares $374.88 million +4.1%13.9%4.8 $45.55 3/31/20217,910,000 shares $377.86 million -5.4%13.6%4.2 $47.77 3/15/20218,360,000 shares $441.58 million +3.1%14.9%4.3 $52.82 2/26/20218,110,000 shares $519.93 million -3.9%14.5%4.7 $64.11 2/12/20218,440,000 shares $607.43 million -14.3%15.1%5.6 $71.97 1/29/20219,850,000 shares $578.49 million -31.9%17.5%6.4 $58.73 1/15/202114,470,000 shares $528.01 million +8.2%30.5%10.6 $36.49 12/31/202013,370,000 shares $376.63 million +21.3%28.2%14.1 $28.17 12/15/202011,020,000 shares $359.47 million -4.8%23.2%11.8 $32.62 11/30/202011,570,000 shares $342.93 million +7.5%24.4%10.8 $29.64 10/30/20208,960,000 shares $303.12 million +18.7%19.0%7.6 $33.83 10/15/20207,550,000 shares $310.23 million +4.3%16.0%6.7 $41.09 VIR Short Interest - Frequently Asked Questions What is Vir Biotechnology's current short interest? Short interest is the volume of Vir Biotechnology shares that have been sold short but have not yet been covered or closed out. As of March 15th, traders have sold 7,880,000 shares of VIR short. 9.02% of Vir Biotechnology's shares are currently sold short. Learn More on Vir Biotechnology's current short interest. What is a good short interest ratio for Vir 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. VIR shares currently have a short interest ratio of 4.0. Learn More on Vir Biotechnology's short interest ratio. Which institutional investors are shorting Vir Biotechnology? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Vir Biotechnology: Jefferies Financial Group Inc., Wolverine Trading LLC, Jefferies Financial Group Inc., Group One Trading LLC, Citadel Advisors LLC, Concourse Financial Group Securities Inc., JPMorgan Chase & Co., and Simplex Trading LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for Vir 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. 9.02% of Vir Biotechnology's floating shares are currently sold short. Is Vir Biotechnology's short interest increasing or decreasing? Vir Biotechnology saw a increase in short interest in March. As of March 15th, there was short interest totaling 7,880,000 shares, an increase of 1.4% from the previous total of 7,770,000 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. What is Vir Biotechnology's float size? Vir Biotechnology currently has issued a total of 137,143,000 shares. Some of Vir 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. Vir Biotechnology currently has a public float of 87,380,000 shares. How does Vir Biotechnology's short interest compare to its competitors? 9.02% of Vir Biotechnology's shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Vir Biotechnology: Zai Lab Limited (8.40%), Ultragenyx Pharmaceutical Inc. (5.53%), SpringWorks Therapeutics, Inc. (10.96%), Akero Therapeutics, Inc. (8.09%), Alvotech (0.51%), Rhythm Pharmaceuticals, Inc. (8.12%), Merus (12.34%), Crinetics Pharmaceuticals, Inc. (8.91%), Immunovant, Inc. (22.78%), Viking Therapeutics, Inc. (22.80%), 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 Vir Biotechnology stock? Short selling VIR is an investing strategy that aims to generate trading profit from Vir Biotechnology as its price is falling. VIR shares are trading down $0.37 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 Vir Biotechnology? A short squeeze for Vir Biotechnology 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 VIR, which in turn drives the price of the stock up even further. How often is Vir 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 VIR, twice per month. The most recent reporting period available is March, 15 2025. More Short Interest Resources from MarketBeat Related Companies ZLAB Short Squeeze RARE Short Squeeze SWTX Short Squeeze AKRO Short Squeeze ALVO Short Squeeze RYTM Short Squeeze MRUS Short Squeeze CRNX Short Squeeze IMVT Short Squeeze VKTX 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:VIR) was last updated on 4/4/2025 by MarketBeat.com Staff From Our PartnersWarning: “DOGE Collapse” imminentElon Strikes Back You may already sense that the tide is turning against Elon Musk and DOGE. 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