Vir Biotechnology (VIR) Short Interest Ratio & Short Volume $5.65 -0.11 (-1.91%) Closing price 07/25/2025 04:00 PM EasternExtended Trading$5.71 +0.06 (+1.06%) As of 07/25/2025 07:23 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 ForecastsChartCompetitorsEarningsFDA EventsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Vir Biotechnology Short Interest DataVir Biotechnology (VIR) has a short interest of 7.49 million shares, representing 6.45% of the float (the number of shares available for trading by the public). This marks a -34.12% decrease in short interest from the previous month. The short interest ratio (days to cover) is 2.0, indicating that it would take 2.0 days of the average trading volume of 1.14 million shares to cover all short positions.Current Short Interest7,490,000 sharesPrevious Short Interest11,370,000 sharesChange Vs. Previous Month-34.12%Dollar Volume Sold Short$37.75 millionShort Interest Ratio2.0 Days to CoverLast Record DateJune 30, 2025Outstanding Shares138,240,000 sharesShort Percent of Float6.45%Today's Trading Volume841,035 sharesAverage Trading Volume1,136,483 sharesToday's Volume Vs. Average74% 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 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 6/30/20257,490,000 shares $37.75 million -34.1%6.5%2 $5.04 6/15/202511,370,000 shares $59.35 million -1.3%12.8%8.5 $5.22 5/31/202511,520,000 shares $55.99 million +5.3%12.9%8.5 $4.86 5/15/202510,940,000 shares $49.78 million +6.1%12.3%8.2 $4.55 4/30/202510,310,000 shares $63.10 million +1.4%11.7%8.3 $6.12 4/15/202510,170,000 shares $57.16 million +0.6%11.6%7.9 $5.62 3/31/202510,110,000 shares $65.51 million +28.3%11.6%4.9 $6.48 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 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. 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 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 $9.68Altucher: Turn $900 into $108,000 in just 12 months? (Ad)Bitcoin is breaking out — and one state just created a Strategic Crypto Reserve. James Altucher says this marks the beginning of “Trump’s Great Gain,” a new crypto bull phase driven by emerging federal policies. He believes certain altcoins could turn $900 into $108,000 — and reveals everything in a new presentation.See Altucher’s Great Gain gameplan here 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 $14.08 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 $39.09Altucher: Turn $900 into $108,000 in just 12 months? (Ad)Bitcoin is breaking out — and one state just created a Strategic Crypto Reserve. James Altucher says this marks the beginning of “Trump’s Great Gain,” a new crypto bull phase driven by emerging federal policies. He believes certain altcoins could turn $900 into $108,000 — and reveals everything in a new presentation.See Altucher’s Great Gain gameplan here 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 $47.28 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 closed out or covered. As of June 30th, traders have sold 7,490,000 shares of VIR short. 6.45% 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 2.0. 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: Caption Management LLC, Nomura Holdings Inc., 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. 6.45% of Vir Biotechnology's floating shares are currently sold short. Is Vir Biotechnology's short interest increasing or decreasing? Vir Biotechnology saw a decline in short interest in the month of June. As of June 30th, there was short interest totaling 7,490,000 shares, a decline of 34.1% from the previous total of 11,370,000 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 Vir Biotechnology's short interest compare to its competitors? 6.45% 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: Immunovant, Inc. (29.79%), Kymera Therapeutics, Inc. (14.70%), Crinetics Pharmaceuticals, Inc. (12.11%), Alvotech (1.63%), Recursion Pharmaceuticals, Inc. (35.52%), Mirum Pharmaceuticals, Inc. (15.35%), Catalyst Pharmaceuticals, Inc. (7.48%), NewAmsterdam Pharma Company N.V. (11.06%), Ultragenyx Pharmaceutical Inc. (7.63%), Amneal Pharmaceuticals, Inc. (4.56%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($72.10 billion), Invesco QQQ ($26.89 billion), iShares Russell 2000 ETF ($19.61 billion), MicroStrategy Incorporated ($9.52 billion), iShares 20+ Year Treasury Bond ETF ($8.70 billion), WD-40 Company ($7.66 billion), Technology Select Sector SPDR Fund ($6.10 billion), Invesco S&P 500 Equal Weight ETF ($5.80 billion), Invesco S&P 500 Top 50 ETF ($5.53 billion), and Vanguard Large-Cap ETF ($5.35 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 $0.11 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 June, 30 2025. More Short Interest Resources from MarketBeat Related Companies IMVT Short Squeeze KYMR Short Squeeze CRNX Short Squeeze ALVO Short Squeeze RXRX Short Squeeze MIRM Short Squeeze CPRX Short Squeeze NAMS Short Squeeze RARE Short Squeeze AMRX 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 7/26/2025 by MarketBeat.com Staff From Our PartnersGoogle did what!?!?A new technology has sparked a modern-day gold rush in Silicon Valley. OpenAI’s Sam Altman invested $375M. Bil...Stansberry Research | SponsoredCritical AI announcement set to ignite AI 2.0 I just put together an urgent new presentation that you need to see right away. 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