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Vir Biotechnology (VIR) Short Interest Ratio & Short Volume

Vir Biotechnology logo
$9.54 -0.02 (-0.16%)
As of 03:46 PM Eastern
This is a fair market value price provided by Massive. Learn more.

Vir Biotechnology Short Interest Overview

As of May 15, 2026, Vir Biotechnology (VIR) had a short interest of 16.83 million shares sold short, representing 10.28% of the public float. This marks a 4.44% increase in short interest since the prior report. The short interest ratio (days to cover) is 11.0, meaning it would take 11.0 days of the average trading volume of 2.81 million shares to cover all short positions.

Current Short Interest
16,833,002 shares
Previous Short Interest
16,117,209 shares
Change Vs. Previous Month
4.44%
Dollar Volume Sold Short
$147.96 million
Short Interest Ratio
11.0 Days to Cover
Last Record Date
May 15, 2026
Outstanding Shares
168,650,000 shares
Short Percent of Float
10.28%
Today's Trading Volume
2,067,893 shares
Average Trading Volume
2,812,564 shares
Today's Volume Vs. Average
74%
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Skip Charts & View Short Interest History

VIR Short Interest Over Time

VIR Days to Cover Over Time

VIR Percentage of Float Shorted Over Time

Vir Biotechnology Tesla Short Interest History & Recent Changes

Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
5/15/202616,833,002 shares $147.96 million +4.4%10.3%10.95 $8.79
4/30/202616,117,209 shares $164.72 million -4.1%11.4%9.74 $10.22
4/15/202616,811,002 shares $175.84 million -0.2%12.4%8.79 $10.46
3/31/202616,841,179 shares $150.90 million +9.1%14.4%7.69 $8.96
3/13/202615,439,503 shares $142.97 million +12.9%13.2%3.67 $9.26
2/27/202613,677,336 shares $124.33 million +7.0%11.7%1.76 $9.09
2/13/202612,779,376 shares $95.46 million +4.5%10.9%8.75 $7.47
1/30/202612,228,838 shares $90.98 million +1.9%10.5%6.03 $7.44
1/15/202611,995,546 shares $74.37 million +2.1%10.3%6.35 $6.20
12/31/202511,747,085 shares $70.83 million +5.4%10.1%6.4 $6.03
12/15/202511,149,646 shares $74.93 million +0.4%9.5%5.66 $6.72
11/28/202511,110,359 shares $71.38 million +1.1%9.5%6.96 $6.43
11/14/202510,992,709 shares $61.89 million +14.7%9.4%7.99 $5.63
10/31/20259,581,029 shares $57.10 million -12.4%8.2%6.21 $5.96
10/15/202510,940,000 shares $66.41 million -0.1%11.9%8 $6.07
9/30/202510,950,000 shares $62.52 million -7.6%12.1%8.2 $5.71
9/15/202511,850,000 shares $56.76 million -0.6%13.1%9.5 $4.79
8/31/202511,920,000 shares $58.88 million +3.7%13.3%9.4 $4.94
8/15/202511,490,000 shares $51.93 million +3.1%12.8%9.7 $4.52
7/31/202511,140,000 shares $56.48 million -1.3%12.4%8.6 $5.07
7/15/202511,290,000 shares $59.84 million +50.7%12.7%8.7 $5.30
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
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
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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 $14.08
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
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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 $47.28
6/15/20219,010,000 shares $394.10 million +4.7%14.2%12.7 $43.74

VIR Short Interest - Frequently Asked Questions

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 May 15th, traders have sold 16,833,002 shares of VIR short. 10.28% of Vir Biotechnology's shares are currently sold short. Learn More on Vir Biotechnology's current short interest.

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 11.0. Learn More on Vir Biotechnology's short interest ratio.

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. 10.28% of Vir Biotechnology's floating shares are currently sold short.

Vir Biotechnology saw a increase in short interest in the month of May. As of May 15th, there was short interest totaling 16,833,002 shares, an increase of 4.4% from the previous total of 16,117,209 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.

10.28% 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: PTC Therapeutics, Inc. (13.06%), Scholar Rock Holding Corporation (15.08%), Centessa Pharmaceuticals PLC Sponsored ADR (1.72%), CG Oncology, Inc. (10.93%), Belite Bio, Inc. Sponsored ADR (3.44%), Immunovant, Inc. (10.10%), Cogent Biosciences, Inc. (7.04%), Xenon Pharmaceuticals Inc. (4.13%), Apellis Pharmaceuticals, Inc. (9.01%), Grifols, S.A. (0.88%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($80.71 billion), Invesco QQQ ($47.96 billion), iShares Russell 2000 ETF ($22.13 billion), Western Digital Corporation ($14.35 billion), Sandisk Corporation ($12.86 billion), Salesforce Inc. ($10.89 billion), Nebius Group N.V. ($9.92 billion), SPDR S&P Biotech ETF ($9.72 billion), Lumentum Holdings Inc. ($8.89 billion), and iShares 20+ Year Treasury Bond ETF ($8.18 billion). View all of the most shorted stocks.

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 up $0.45 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.

A short squeeze for Vir 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 VIR, which in turn drives the price of the stock up even further.

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 May, 15 2026.

Understanding short interest metrics can help you assess how traders are positioning around a stock like VIR:

  • Shares Sold Short: The total number of shares that have been sold by short sellers but have not yet been covered or closed out. A high number may indicate bearish sentiment.
  • Short Float: The percentage of a company’s publicly available shares (or "float") that are sold short. A higher short float suggests a greater portion of the stock is being bet against.
  • Days to Cover (Short Interest Ratio): This estimates how many days it would take short sellers to cover their positions, based on average daily trading volume. Higher values can signal potential for a short squeeze if buying pressure increases.

These metrics are often used by traders to gauge sentiment, volatility risk, and the potential for price movements based on short covering activity.



This page (NASDAQ:VIR) was last updated on 5/29/2026 by MarketBeat.com Staff.
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