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Atea Pharmaceuticals (AVIR) Short Interest Ratio & Short Volume

Atea Pharmaceuticals logo
$4.15 +0.01 (+0.24%)
Closing price 04:00 PM Eastern
Extended Trading
$4.16 +0.00 (+0.12%)
As of 04:10 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 Massive. Learn more.
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Atea Pharmaceuticals Short Interest Overview

As of April 30, 2026, Atea Pharmaceuticals (AVIR) had a short interest of 7.49 million shares sold short, representing 11.43% of the public float. This marks a -2.57% decrease in short interest since the prior report. The short interest ratio (days to cover) is 28.5, meaning it would take 28.5 days of the average trading volume of 334,018 shares to cover all short positions.

Current Short Interest
7,488,888 shares
Previous Short Interest
7,686,253 shares
Change Vs. Previous Month
-2.57%
Dollar Volume Sold Short
$41.26 million
Short Interest Ratio
28.5 Days to Cover
Last Record Date
April 30, 2026
Outstanding Shares
80,030,000 shares
Short Percent of Float
11.43%
Today's Trading Volume
250,594 shares
Average Trading Volume
334,018 shares
Today's Volume Vs. Average
75%
Short Selling Atea Pharmaceuticals?
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

AVIR Short Interest Over Time

AVIR Days to Cover Over Time

AVIR Percentage of Float Shorted Over Time

Atea Pharmaceuticals Tesla Short Interest History & Recent Changes

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Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
4/30/20267,488,888 shares $41.26 million -2.6%11.4%28.49 $5.51
4/15/20267,686,253 shares $45.20 million +1.3%11.8%22.24 $5.88
3/31/20267,586,717 shares $40.82 million -5.1%11.6%15.56 $5.38
3/13/20267,994,672 shares $48.77 million +1.5%12.3%9.87 $6.10
2/27/20267,880,520 shares $36.88 million +2.1%12.1%20.28 $4.68
2/13/20267,720,658 shares $33.28 million +0.7%12.1%14.77 $4.31
1/30/20267,664,024 shares $32.50 million +5.0%12.0%11.94 $4.24
1/15/20267,302,088 shares $25.12 million +5.5%11.4%20.68 $3.44
12/31/20256,924,486 shares $24.72 million +1.7%10.8%16.43 $3.57
12/15/20256,807,812 shares $21.44 million +0.9%10.6%20.86 $3.15
11/28/20256,745,446 shares $20.88 million -1.6%10.5%17.27 $3.10
11/14/20256,855,045 shares $20.29 million +7.0%10.7%15.02 $2.96
10/31/20256,403,948 shares $20.81 million +5.8%9.9%16.34 $3.25
10/15/20256,050,000 shares $19.06 million +0.7%9.4%17.8 $3.15
9/30/20256,010,000 shares $17.43 million -2.1%9.4%16.9 $2.90
9/15/20256,140,000 shares $18.67 million +4.8%9.6%18.1 $3.04
8/31/20255,860,000 shares $19.69 million +19.8%9.1%16.4 $3.36
8/15/20254,890,000 shares $17.12 million +9.6%7.6%12.4 $3.50
7/31/20254,460,000 shares $16.23 million +2.8%6.9%11.1 $3.64
7/15/20254,340,000 shares $15.49 million +13.9%6.3%10.1 $3.57
6/30/20253,810,000 shares $13.72 million +14.8%5.5%8.7 $3.60
6/15/20253,320,000 shares $10.49 million +8.5%4.8%8 $3.16
5/31/20253,060,000 shares $9.12 million -5.6%4.4%7.8 $2.98
5/15/20253,240,000 shares $8.39 million +6.2%4.8%8.6 $2.59
4/30/20253,050,000 shares $9.00 million +2.7%4.5%8.7 $2.95
4/15/20252,970,000 shares $8.38 million -1.3%4.4%8.7 $2.82
3/31/20253,010,000 shares $9.00 million +3.4%4.5%8.9 $2.99
3/15/20252,910,000 shares $8.96 million +1.4%4.2%7.6 $3.08
2/28/20252,870,000 shares $8.70 million -2.7%4.1%6.7 $3.03
2/15/20252,950,000 shares $9.29 million No Change4.0%7.3 $3.15
1/31/20252,950,000 shares $9.03 million +3.5%4.0%7.4 $3.06
1/15/20252,850,000 shares $9.46 million +2.9%3.9%8 $3.32
12/31/20242,770,000 shares $9.28 million -12.9%3.7%9 $3.35
12/15/20243,180,000 shares $9.32 million +21.8%4.3%11.9 $2.93
11/30/20242,610,000 shares $8.93 million -1.1%3.5%11.9 $3.42
11/15/20242,640,000 shares $8.50 million +1.9%3.6%13.9 $3.22
10/31/20242,590,000 shares $8.39 million -1.5%3.5%13.1 $3.24
10/15/20242,630,000 shares $9.34 million -5.4%3.6%12.9 $3.55
9/30/20242,780,000 shares $9.31 million +3.0%3.8%12.8 $3.35
9/15/20242,700,000 shares $10.45 million -4.6%3.7%11.4 $3.87
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8/31/20242,830,000 shares $10.90 million +13.7%3.8%12.1 $3.85
8/15/20242,490,000 shares $9.31 million +4.6%3.4%10.2 $3.74
7/31/20242,380,000 shares $9.09 million +0.4%3.2%9.2 $3.82
7/15/20242,370,000 shares $8.39 million +5.8%3.2%9.1 $3.54
6/30/20242,240,000 shares $7.41 million +5.2%3.0%8.7 $3.31
6/15/20242,130,000 shares $7.69 million -2.3%2.9%8.1 $3.61
5/31/20242,180,000 shares $8.00 million +16.6%3.0%7.6 $3.67
5/15/20241,870,000 shares $6.94 million +3.9%2.5%6 $3.71
4/30/20241,800,000 shares $6.66 million +2.9%2.4%5.2 $3.70
4/15/20241,750,000 shares $6.58 million +4.8%2.4%4.3 $3.76
3/31/20241,670,000 shares $6.75 million -1.8%2.3%3.6 $4.04
3/15/20241,700,000 shares $6.82 million +3.0%2.3%3.6 $4.01
2/29/20241,650,000 shares $7.11 million +1.9%2.2%3.4 $4.31
2/15/20241,620,000 shares $6.82 million -57.4%2.2%3.4 $4.21
1/31/20243,800,000 shares $15.81 million +1.9%5.2%8.1 $4.16
1/15/20243,730,000 shares $13.28 million -1.1%5.1%8.3 $3.56
12/31/20233,770,000 shares $11.50 million +7.1%5.1%9.1 $3.05
12/15/20233,520,000 shares $10.38 million -1.1%4.8%8.6 $2.95
11/30/20233,560,000 shares $10.64 million -1.7%4.9%8.8 $2.99
11/15/20233,620,000 shares $10.68 million +31.2%4.9%9.2 $2.95
10/31/20232,760,000 shares $8.97 million +15.0%3.8%7.2 $3.25
10/15/20232,400,000 shares $7.27 million +34.1%3.3%6.7 $3.03
9/30/20231,790,000 shares $5.37 million -6.8%2.4%5.3 $3.00
9/15/20231,920,000 shares $6.11 million +8.5%2.6%5.5 $3.18
8/31/20231,770,000 shares $5.95 million +4.7%2.4%5 $3.36
8/15/20231,690,000 shares $5.66 million -9.1%2.3%3.3 $3.35
7/31/20231,860,000 shares $6.38 million +1.6%2.5%2.8 $3.43
7/15/20231,830,000 shares $6.66 million +9.6%2.5%2.6 $3.64
6/30/20231,670,000 shares $6.25 million -8.2%2.3%2.3 $3.74
6/15/20231,820,000 shares $7.55 million -2.7%2.5%2.4 $4.15
5/31/20231,870,000 shares $7.46 million +9.4%2.6%2.3 $3.99
5/15/20231,710,000 shares $5.90 million -11.9%2.3%2.4 $3.45
4/30/20231,940,000 shares $6.34 million +2.1%2.7%3.5 $3.27
4/15/20231,900,000 shares $6.23 million +6.2%2.6%3.5 $3.28
3/31/20231,790,000 shares $6.00 million -5.8%2.5%3.4 $3.35
3/15/20231,900,000 shares $6.94 million +5.6%2.6%3.7 $3.65
2/28/20231,800,000 shares $6.37 million +20.0%2.5%4.2 $3.54
2/15/20231,500,000 shares $6.14 million +1.4%2.1%3.6 $4.09
1/31/20231,480,000 shares $6.85 million -10.8%2.0%3.2 $4.63
1/15/20231,660,000 shares $8.18 million -0.6%2.3%3.6 $4.93
12/30/20221,670,000 shares $8.03 million -14.8%2.3%3.6 $4.81
12/15/20221,960,000 shares $8.60 million +3.2%2.7%4.1 $4.39
11/30/20221,900,000 shares $8.91 million -3.1%2.6%3.8 $4.69
11/15/20221,960,000 shares $10.15 million -13.7%2.7%3.9 $5.18
10/31/20222,270,000 shares $13.62 million -1.3%3.1%4.7 $6.00
10/15/20222,300,000 shares $12.08 million +4.1%3.1%5.2 $5.25
9/30/20222,210,000 shares $12.57 million -3.9%3.0%5 $5.69
9/15/20222,300,000 shares $15.76 million -12.9%3.1%4.9 $6.85
8/31/20222,640,000 shares $19.80 million -4.0%3.6%5.3 $7.50
8/15/20222,750,000 shares $23.60 million +1.1%3.8%4.8 $8.58
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7/31/20222,720,000 shares $22.30 million -6.5%3.7%4 $8.20
7/15/20222,910,000 shares $23.57 million +10.7%4.0%4.2 $8.10
6/30/20222,630,000 shares $18.67 million +30.2%3.6%3.7 $7.10
6/15/20222,020,000 shares $13.33 million +4.1%2.8%2.7 $6.60
5/31/20221,940,000 shares $15.29 million -18.8%2.7%2.5 $7.88
5/15/20222,390,000 shares $17.42 million +21.9%3.3%2.9 $7.29
4/30/20221,960,000 shares $11.51 million +10.7%2.7%2.2 $5.87
4/15/20221,770,000 shares $11.66 million -15.3%2.5%1.8 $6.59
3/31/20222,090,000 shares $15.09 million -27.2%2.9%2 $7.22
3/15/20222,870,000 shares $16.33 million +11.2%4.0%2.5 $5.69
2/28/20222,580,000 shares $16.36 million +2.8%3.6%2 $6.34
2/15/20222,510,000 shares $16.11 million -20.1%3.5%1.8 $6.42
1/31/20223,140,000 shares $22.42 million +13.0%5.1%1.8 $7.14
1/15/20222,780,000 shares $20.29 million +6.9%4.5%1.4 $7.30
12/31/20212,600,000 shares $23.24 million +6.6%4.2%0.6 $8.94
12/15/20212,440,000 shares $19.52 million +29.8%3.9%0.5 $8.00
11/30/20211,880,000 shares $15.21 million -69.8%3.0%0.4 $8.09
11/15/20216,230,000 shares $71.65 million -0.6%10.0%1.3 $11.50
10/29/20216,270,000 shares $72.98 million +17.2%10.5%1.4 $11.64
10/15/20215,350,000 shares $210.15 million -17.3%8.9%1.3 $39.28
9/30/20216,470,000 shares $226.84 million +26.4%10.8%3.7 $35.06
9/15/20215,120,000 shares $133.02 million +0.6%8.8%3.7 $25.98
8/31/20215,090,000 shares $151.27 million -12.8%8.9%3.7 $29.72
8/13/20215,840,000 shares $161.59 million +9.2%10.6%4.4 $27.67
7/30/20215,350,000 shares $133.96 million -24.3%9.7%4.1 $25.04
7/15/20217,070,000 shares $155.61 million -18.6%12.9%5.1 $22.01
6/30/20218,690,000 shares $186.66 million +72.1%15.8%6.5 $21.48
6/15/20215,050,000 shares $119.08 million No Change9.2%5 $23.58
5/28/20215,050,000 shares $103.12 million +0.6%9.2%6.4 $20.42

AVIR Short Interest - Frequently Asked Questions

Short interest is the volume of Atea Pharmaceuticals shares that have been sold short but have not yet been covered or closed out. As of April 30th, investors have sold 7,488,888 shares of AVIR short. 11.43% of Atea Pharmaceuticals' shares are currently sold short. Learn More on Atea Pharmaceuticals' 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. AVIR shares currently have a short interest ratio of 28.5. Learn More on Atea Pharmaceuticals'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. 11.43% of Atea Pharmaceuticals' floating shares are currently sold short.

Atea Pharmaceuticals saw a decline in short interest during the month of April. As of April 30th, there was short interest totaling 7,488,888 shares, a decline of 2.6% from the previous total of 7,686,253 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.

11.43% of Atea Pharmaceuticals' shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Atea Pharmaceuticals: MBX Biosciences, Inc. (8.47%), Palvella Therapeutics, Inc. (19.04%), Harmony Biosciences Holdings, Inc. (13.40%), Zymeworks Inc. (9.57%), Agios Pharmaceuticals, Inc. (12.40%), Intellia Therapeutics, Inc. (37.29%), Nuvation Bio Inc. (20.80%), Vericel Corporation (10.55%), Recursion Pharmaceuticals, Inc. (35.31%), Nurix Therapeutics, Inc. (19.90%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($86.09 billion), Invesco QQQ ($39.89 billion), iShares Russell 2000 ETF ($26.13 billion), Western Digital Corporation ($12.66 billion), Salesforce Inc. ($12.29 billion), Sandisk Corporation ($11.87 billion), SPDR S&P Biotech ETF ($9.82 billion), Lumentum Holdings Inc. ($8.51 billion), iShares 20+ Year Treasury Bond ETF ($7.76 billion), and Bloom Energy Corporation ($7.40 billion). View all of the most shorted stocks.

Short selling AVIR is an investing strategy that aims to generate trading profit from Atea Pharmaceuticals as its price is falling. AVIR 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.

A short squeeze for Atea Pharmaceuticals 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 AVIR, 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 AVIR, twice per month. The most recent reporting period available is April, 30 2026.

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

  • 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.


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This page (NASDAQ:AVIR) was last updated on 5/19/2026 by MarketBeat.com Staff.
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