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Avantor (AVTR) Short Interest Ratio & Short Volume

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$8.32 +0.02 (+0.18%)
As of 01:54 PM Eastern
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Avantor Short Interest Overview

As of April 15, 2026, Avantor (AVTR) had a short interest of 42.39 million shares sold short, representing 6.23% of the public float. This marks a -3.37% decrease in short interest since the prior report. The short interest ratio (days to cover) is 5.4, meaning it would take 5.4 days of the average trading volume of 10.90 million shares to cover all short positions.

Current Short Interest
42,393,605 shares
Previous Short Interest
43,873,960 shares
Change Vs. Previous Month
-3.37%
Dollar Volume Sold Short
$353.77 million
Short Interest Ratio
5.4 Days to Cover
Last Record Date
April 15, 2026
Outstanding Shares
682,755,000 shares
Short Percent of Float
6.23%
Today's Trading Volume
8,760,586 shares
Average Trading Volume
10,902,641 shares
Today's Volume Vs. Average
80%
Short Selling Avantor?
A Guide To High-Short-Interest Stocks

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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

AVTR Short Interest Over Time

AVTR Days to Cover Over Time

AVTR Percentage of Float Shorted Over Time

Avantor 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
4/15/202642,393,605 shares $353.77 million -3.4%6.2%5.44 $8.35
3/31/202643,873,960 shares $344.19 million +13.7%6.5%5.11 $7.85
3/13/202638,572,963 shares $306.23 million -1.7%5.7%3.41 $7.94
2/27/202639,218,288 shares $355.08 million -1.6%5.8%4.46 $9.05
2/13/202639,873,526 shares $366.24 million +5.7%5.9%2.32 $9.19
1/30/202637,710,659 shares $411.42 million +25.3%5.6%2.69 $10.91
1/15/202630,097,069 shares $361.95 million +7.4%4.5%2.81 $12.03
12/31/202528,022,150 shares $321.41 million +2.7%4.2%2.67 $11.47
12/15/202527,279,839 shares $307.31 million -9.3%4.0%2.67 $11.27
11/28/202530,081,223 shares $353.45 million +17.6%4.5%3.7 $11.75
11/14/202525,588,353 shares $291.07 million +16.6%3.8%2.98 $11.38
10/31/202521,944,903 shares $259.30 million -6.5%3.3%1.35 $11.82
10/15/202523,470,000 shares $324.94 million -9.8%3.5%2 $13.85
9/30/202526,010,000 shares $324.60 million +3.8%N/A2.2 $12.48
9/15/202525,060,000 shares $310.49 million -16.5%N/A2.1 $12.39
8/31/202530,010,000 shares $404.38 million -10.0%4.5%2.4 $13.48
8/15/202533,340,000 shares $430.42 million -18.1%N/A2.6 $12.91
7/31/202540,700,000 shares $548.64 million +1.6%6.0%3.1 $13.48
7/15/202540,070,000 shares $514.02 million +20.1%N/A3.1 $12.83
6/30/202533,360,000 shares $449.69 million +5.3%5.0%2.6 $13.48
6/15/202531,670,000 shares $413.93 million -8.8%4.7%2.5 $13.07
5/31/202534,740,000 shares $448.49 million +25.0%5.2%2.9 $12.91
5/15/202527,800,000 shares $356.95 million -20.5%4.1%2.4 $12.84
4/30/202534,950,000 shares $455.05 million -5.4%N/A3.3 $13.02
4/15/202536,940,000 shares $569.50 million +16.1%5.5%4.2 $15.42
3/31/202531,810,000 shares $516.44 million +0.6%4.7%4.2 $16.24
3/15/202531,630,000 shares $516.71 million +11.5%4.7%5 $16.34
2/28/202528,370,000 shares $473.92 million -13.2%4.2%4.7 $16.71
2/15/202532,680,000 shares $583.83 million +21.1%4.9%5.9 $17.87
1/31/202526,990,000 shares $600.66 million -6.1%N/A4.7 $22.26
1/15/202528,750,000 shares $627.33 million -2.8%N/A5 $21.82
12/31/202429,570,000 shares $623.04 million +20.6%N/A5.2 $21.07
12/15/202424,520,000 shares $547.53 million -9.0%N/A4.1 $22.33
11/30/202426,930,000 shares $567.15 million -15.6%N/A4.5 $21.06
11/15/202431,900,000 shares $661.93 million +38.1%N/A5.6 $20.75
10/31/202423,100,000 shares $516.75 million -30.2%N/A4.7 $22.37
10/15/202433,090,000 shares $823.28 million -7.9%N/A4.5 $24.88
9/30/202435,910,000 shares $928.99 million +2.0%N/A4.6 $25.87
9/15/202435,210,000 shares $946.44 million -4.0%N/A4.4 $26.88
8/31/202436,690,000 shares $948.07 million +0.8%N/A4.3 $25.84
8/15/202436,390,000 shares $929.04 million +9.2%N/A4.2 $25.53
7/31/202433,330,000 shares $891.58 million +55.2%N/A3.7 $26.75
7/15/202421,470,000 shares $447.01 million +11.8%N/A3.3 $20.82
6/30/202419,210,000 shares $407.25 million +8.7%N/A3.5 $21.20
6/15/202417,670,000 shares $383.09 million +24.1%N/A3.3 $21.68
5/31/202414,240,000 shares $343.04 million -23.8%N/A3 $24.09
5/15/202418,690,000 shares $471.17 million -25.3%N/A4.2 $25.21
4/30/202425,010,000 shares $605.99 million -9.4%N/A4.8 $24.23
4/15/202427,600,000 shares $682.00 million -5.8%N/A5.1 $24.71
3/31/202429,290,000 shares $748.95 million +6.6%N/A5 $25.57
3/15/202427,470,000 shares $688.67 million +8.1%N/A4.6 $25.07
2/29/202425,410,000 shares $625.85 million -12.9%N/A3.8 $24.63
2/15/202429,160,000 shares $701.30 million -1.3%N/A4.2 $24.05
1/31/202429,530,000 shares $679.19 million -8.7%N/A4.5 $23.00
1/15/202432,330,000 shares $711.58 million -10.0%N/A4.1 $22.01
12/31/202335,910,000 shares $819.83 million +6.2%N/A4.4 $22.83
12/15/202333,800,000 shares $777.57 million -6.7%N/A4.2 $23.01
11/30/202336,230,000 shares $767.35 million +14.4%N/A4.5 $21.18
11/15/202331,680,000 shares $611.11 million +9.1%N/A4.2 $19.29
10/31/202329,040,000 shares $506.02 million +71.1%N/A3.9 $17.43
10/15/202316,970,000 shares $356.20 million +12.8%N/A2.6 $20.99
9/30/202315,040,000 shares $317.04 million -11.2%N/A2.6 $21.08
9/15/202316,930,000 shares $370.17 million +27.5%N/A3.1 $21.87
8/31/202313,280,000 shares $287.71 million +21.4%N/A2.3 $21.67
8/15/202310,940,000 shares $230.51 million -35.8%N/A1.8 $21.07
7/31/202317,030,000 shares $350.22 million +17.9%N/A2.8 $20.57
7/15/202314,440,000 shares $301.80 million +7.1%N/A2.4 $20.90
6/30/202313,480,000 shares $276.74 million -20.6%N/A2.2 $20.53
6/15/202316,980,000 shares $337.82 million +21.7%N/A2.7 $19.90
5/31/202313,950,000 shares $278.16 million +16.1%N/A2.2 $19.94
5/15/202312,020,000 shares $244.85 million -8.6%N/A1.8 $20.37
4/30/202313,150,000 shares $256.16 million -13.1%N/A1.9 $19.48
4/15/202315,140,000 shares $313.25 million -4.8%N/A2.2 $20.69
3/31/202315,910,000 shares $336.34 million +1.3%N/A2.4 $21.14
3/15/202315,710,000 shares $322.37 million +27.3%N/A2.3 $20.52
2/28/202312,340,000 shares $300.73 million +36.8%N/A1.9 $24.37
2/15/20239,020,000 shares $224.06 million +11.5%N/A1.5 $24.84
1/31/20238,090,000 shares $193.35 million +1.9%N/A1.3 $23.90
1/15/20237,940,000 shares $175.47 million -5.3%N/A1.3 $22.10
12/30/20228,380,000 shares $176.73 million +18.7%N/A1.3 $21.09
12/15/20227,060,000 shares $150.66 million +4.4%N/A1.1 $21.34
11/30/20226,760,000 shares $150.61 million -22.2%N/A1 $22.28
11/15/20228,690,000 shares $184.05 million -3.4%N/A1.2 $21.18
10/31/20229,000,000 shares $181.53 million -4.3%N/A1.3 $20.17
10/15/20229,400,000 shares $184.05 million +6.7%N/A1.4 $19.58
9/30/20228,810,000 shares $172.68 million +2.9%N/A1.3 $19.60
9/15/20228,560,000 shares $198.42 million +13.8%N/A1.4 $23.18
8/31/20227,520,000 shares $187.32 million -0.5%N/A1.3 $24.91
8/15/20227,560,000 shares $217.80 million -13.1%N/A1.4 $28.81
7/31/20228,700,000 shares $252.47 million -13.2%N/A1.7 $29.02
7/15/202210,020,000 shares $287.87 million -8.1%N/A1.9 $28.73
6/30/202210,900,000 shares $338.99 million +59.1%N/A2.1 $31.10
6/15/20226,850,000 shares $209.68 million +11.2%N/A1.2 $30.61
5/31/20226,160,000 shares $197.37 million -61.1%1.1%1.1 $32.04
5/15/202215,840,000 shares $475.99 million -9.5%2.8%2.9 $30.05
4/30/202217,500,000 shares $557.90 million -1.2%3.1%3.3 $31.88
4/15/202217,710,000 shares $557.16 million +6.4%3.1%3.7 $31.46
3/31/202216,650,000 shares $563.10 million -1.2%2.9%3.7 $33.82
3/15/202216,850,000 shares $581.33 million +0.1%N/A4.1 $34.50
2/28/202216,840,000 shares $584.18 million -4.3%2.9%4.2 $34.69
2/15/202217,590,000 shares $620.58 million +8.7%3.1%4.6 $35.28
1/31/202216,190,000 shares $604.37 million -0.7%2.9%4.3 $37.33
1/15/202216,310,000 shares $615.05 million +3.0%2.9%4.2 $37.71
12/31/202115,830,000 shares $667.08 million -2.4%2.8%4.1 $42.14
12/15/202116,220,000 shares $644.75 million +6.1%2.9%4.1 $39.75
11/30/202115,290,000 shares $603.65 million +3.2%2.8%3.7 $39.48
11/15/202114,820,000 shares $570.42 million -3.9%2.7%3.6 $38.49
10/29/202115,420,000 shares $622.66 million -0.3%2.8%3.8 $40.38
10/15/202115,460,000 shares $592.89 million -6.0%2.8%4.1 $38.35
9/30/202116,440,000 shares $672.40 million -10.5%3.1%4.6 $40.90
9/15/202118,360,000 shares $781.95 million +2.1%3.5%5.1 $42.59
8/31/202117,980,000 shares $709.13 million -0.9%3.4%5.3 $39.44
8/13/202118,140,000 shares $700.57 million +1.2%3.4%5.2 $38.62
7/30/202117,920,000 shares $673.43 million No Change3.2%4.8 $37.58
7/15/202117,920,000 shares $650.68 million -9.8%3.2%4.6 $36.31
6/30/202119,860,000 shares $705.23 million +26.0%3.6%4.9 $35.51
6/15/202115,760,000 shares $523.70 million +4.7%2.8%4.1 $33.23
5/28/202115,050,000 shares $483.86 million -12.4%2.7%3.9 $32.15
5/14/202117,180,000 shares $522.96 million -4.4%3.1%4.2 $30.44

AVTR Short Interest - Frequently Asked Questions

Short interest is the volume of Avantor shares that have been sold short but have not yet been closed out or covered. As of April 15th, traders have sold 42,393,605 shares of AVTR short. 6.23% of Avantor's shares are currently sold short. Learn More on Avantor'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. AVTR shares currently have a short interest ratio of 5.4. Learn More on Avantor's short interest ratio.

As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Avantor: Tudor Investment Corp ET AL, Summit Securities Group LLC, Caption Management LLC, Walleye Trading LLC, Walleye Capital LLC, Jane Street Group LLC, Group One Trading LLC, Simplex Trading LLC, Twin Tree Management LP, and Goldman Sachs Group Inc.. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission.

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. 6.23% of Avantor's floating shares are currently sold short.

Avantor saw a drop in short interest in April. As of April 15th, there was short interest totaling 42,393,605 shares, a drop of 3.4% from the previous total of 43,873,960 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.

6.23% of Avantor's shares are currently sold short. Here is how the short interest of companies compare to Avantor: Bio-Techne Corp (9.07%), Agilent Technologies, Inc. (1.59%), Danaher Corporation (1.30%), Revvity Inc. (7.56%), Thermo Fisher Scientific Inc. (1.45%), Veralto Corporation (1.59%), Fortive Corporation (4.28%), Nova Ltd. (5.05%), Camtek Ltd. (33.27%), Sensata Technologies Holding N.V. (5.06%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($87.50 billion), Invesco QQQ ($42.26 billion), iShares Russell 2000 ETF ($24.79 billion), Salesforce Inc. ($13.16 billion), SPDR S&P Biotech ETF ($10.01 billion), Western Digital Corporation ($9.77 billion), Sandisk Corporation ($8.69 billion), iShares 20+ Year Treasury Bond ETF ($8.06 billion), CoreWeave Inc. ($7.67 billion), and iShares iBoxx $ High Yield Corporate Bond ETF ($7.64 billion). View all of the most shorted stocks.

Short selling AVTR is an investing strategy that aims to generate trading profit from Avantor as its price is falling. AVTR shares are trading down $0.04 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 Avantor 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 AVTR, 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 AVTR, twice per month. The most recent reporting period available is April, 15 2026.

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

  • 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 (NYSE:AVTR) was last updated on 5/8/2026 by MarketBeat.com Staff.
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