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Aeterna Zentaris (AEZS) Short Interest Ratio & Short Volume

Aeterna Zentaris logo
$3.14 +0.14 (+4.50%)
As of 08/27/2025

Aeterna Zentaris Short Interest Data

Aeterna Zentaris (AEZS) has a short interest of 5,300 shares, representing 0.18% of the float (the number of shares available for trading by the public). This marks a -7.02% decrease in short interest from the previous month. The short interest ratio (days to cover) is 0.5, indicating that it would take 0.5 days of the average trading volume of 7,305 shares to cover all short positions.

Current Short Interest
5,300 shares
Previous Short Interest
5,700 shares
Change Vs. Previous Month
-7.02%
Dollar Volume Sold Short
$31.80 thousand
Short Interest Ratio
0.5 Days to Cover
Last Record Date
July 15, 2024
Outstanding Shares
1,793,000 shares
Float Size
3,010,000 shares
Short Percent of Float
0.18%
Today's Trading Volume
36,582 shares
Average Trading Volume
7,305 shares
Today's Volume Vs. Average
501%
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Skip Charts & View Short Interest History

AEZS Short Interest Over Time

AEZS Days to Cover Over Time

AEZS Percentage of Float Shorted Over Time

Aeterna Zentaris Short Interest History

Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
7/15/20245,300 shares $31.80 thousand -7.0%0.2%0.5 $6.00
6/30/20245,700 shares $25.19 thousand -38.7%0.2%0.5 $4.42
6/15/20249,300 shares $59.94 thousand -46.6%0.3%1 $6.45
5/31/202417,400 shares $168.61 thousand +171.9%0.6%1.9 $9.69
5/15/20246,400 shares $55.33 thousand +56.1%0.5%1 $8.65
4/30/20244,100 shares $35.10 thousand -75.7%0.3%0.9 $8.56
4/15/202416,900 shares $32.96 thousand -22.1%0.4%1.1 $1.95
3/31/202421,700 shares $47.52 thousand -25.7%0.5%1.3 $2.19
3/15/202429,200 shares $62.49 thousand +46.0%0.6%1.7 $2.14
2/29/202420,000 shares $38.20 thousand -13.8%0.4%1.4 $1.91
2/15/202423,200 shares $43.15 thousand +10.0%0.5%1.6 $1.86
1/31/202421,100 shares $39.46 thousand -14.2%0.4%1.5 $1.87
1/15/202424,600 shares $51.17 thousand -17.7%0.5%1.7 $2.08
12/31/202329,900 shares $55.61 thousand -20.3%0.6%2.2 $1.86
12/15/202337,500 shares $80.06 thousand -11.6%0.8%3 $2.14
11/30/202342,400 shares $83.95 thousand -10.7%0.9%4 $1.98
11/15/202347,500 shares $70.30 thousand +1.5%1.0%5.4 $1.48
10/31/202346,800 shares $67.86 thousand -15.4%1.0%5.5 $1.45
10/15/202355,300 shares $97.88 thousand -10.8%1.1%5.9 $1.77
9/30/202362,000 shares $155 thousand +5.8%1.3%6.2 $2.50
9/15/202358,600 shares $155.29 thousand -7.1%1.2%6.2 $2.65
8/31/202363,100 shares $169.11 thousand -0.9%1.3%6.7 $2.68
8/15/202363,700 shares $181.55 thousand +1.9%1.3%6.1 $2.85
7/31/202362,500 shares $188.13 thousand -5.9%1.3%5.9 $3.01
7/15/202366,400 shares $190.57 thousand +6.9%1.4%6 $2.87
6/30/202362,100 shares $158.98 thousand -13.8%1.3%5.2 $2.56
6/15/202372,000 shares $203.76 thousand -12.0%1.5%5.5 $2.83
5/31/202381,800 shares $227.00 thousand +0.1%1.7%5.3 $2.78
5/15/202381,700 shares $242.65 thousand -14.4%1.7%5.2 $2.97
4/30/202395,400 shares $300.51 thousand +23.3%2.0%5.9 $3.15
4/15/202377,400 shares $202.79 thousand +3.8%1.6%5 $2.62
3/31/202374,600 shares $195.45 thousand +1.5%1.5%5 $2.62
3/15/202373,500 shares $196.25 thousand -15.5%1.5%4.9 $2.67
2/28/202387,000 shares $282.75 thousand +7.0%1.8%5.5 $3.25
2/15/202381,300 shares $284.55 thousand -5.8%1.7%5.3 $3.50
1/31/202386,300 shares $330.53 thousand -2.3%1.8%5.7 $3.83
1/15/202388,300 shares $330.68 thousand -9.1%1.8%5.8 $3.75
12/30/202297,100 shares $308.78 thousand +2.2%2.0%6.6 $3.18
12/15/202295,000 shares $316.73 thousand +0.7%2.0%6.6 $3.33
11/30/202294,300 shares $369.66 thousand -5.2%2.0%7 $3.92
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11/15/202299,500 shares $375.12 thousand -11.1%2.1%6.1 $3.77
10/31/2022111,900 shares $459.23 thousand +1.2%2.3%4.4 $4.10
10/15/2022110,600 shares $395.95 thousand -13.5%2.3%2.2 $3.58
9/30/2022127,800 shares $490.05 thousand -8.5%2.6%2.1 $3.83
9/15/2022139,600 shares $661.70 thousand -9.0%2.9%1.7 $4.74
8/31/2022153,400 shares $702.57 thousand -0.4%3.2%1.9 $4.58
8/15/2022154,000 shares $785.40 thousand +48.2%3.2%2 $5.10
7/31/2022103,900 shares $455.09 thousand +17.3%2.2%1.3 $4.38
7/15/202288,600 shares $526.95 thousand +13.2%1.8%1.7 $5.95
6/30/20221,960,000 shares $385.73 thousand -5.8%19.8%1.8 $0.20
6/15/20222,080,000 shares $357.76 thousand -0.5%21.1%3.5 $0.17
5/31/20222,090,000 shares $431.59 thousand -13.6%1.7%3.5 $0.21
5/15/20222,420,000 shares $592.90 thousand -6.9%2.0%4 $0.25
4/30/20222,600,000 shares $793 thousand -6.8%N/A5.2 $0.31
4/15/20222,790,000 shares $920.70 thousand -1.4%N/A4.8 $0.33
3/31/20222,830,000 shares $1.04 million -0.7%N/A4.4 $0.37
3/15/20222,850,000 shares $983.25 thousand +1.1%N/A3.3 $0.35
2/28/20222,820,000 shares $1.02 million -1.4%N/A3.1 $0.36
2/15/20222,860,000 shares $1.14 million -10.3%N/A2.9 $0.40
1/31/20223,190,000 shares $1.15 million -14.7%N/A2.8 $0.36
1/15/20223,740,000 shares $1.35 million No ChangeN/A2.9 $0.36
12/31/20213,740,000 shares $1.33 million +3.6%N/A2.9 $0.36
12/15/20213,610,000 shares $1.49 million +1.4%N/A1.7 $0.41
11/30/20213,560,000 shares $1.69 million -0.8%N/A1.6 $0.48
11/15/20213,590,000 shares $1.99 million -1.6%N/A1.7 $0.55
10/29/20213,650,000 shares $2.16 million -2.4%N/A1.7 $0.59
10/15/20213,740,000 shares $2.26 million +0.3%N/A1.8 $0.60
9/30/20213,730,000 shares $2.80 million -7.7%N/A1.9 $0.75
9/15/20214,040,000 shares $2.50 million -6.3%N/A3.6 $0.62
8/31/20214,310,000 shares $3.10 million -4.4%N/A3.3 $0.72
8/13/20214,510,000 shares $3.09 million -11.2%N/A2.7 $0.69
7/30/20215,080,000 shares $3.71 million +11.2%N/A2.9 $0.73
7/15/20214,570,000 shares $3.37 million +2.0%3.8%2 $0.74
6/30/20214,480,000 shares $3.93 million -15.8%3.7%1.8 $0.88
6/15/20215,320,000 shares $5.13 million +13.2%4.4%1.5 $0.96
5/28/20214,700,000 shares $4.16 million -2.9%3.9%0.7 $0.88
5/14/20214,840,000 shares $4.02 million -9.9%4.0%0.7 $0.83
4/30/20215,370,000 shares $5.91 million -12.4%4.4%0.4 $1.10
4/15/20216,130,000 shares $5.99 million -20.7%5.1%0.3 $0.98
3/31/20217,730,000 shares $8.73 million +89.5%6.4%0.4 $1.13
3/15/20214,080,000 shares $4.81 million +12.1%3.4%0.2 $1.18
2/26/20213,640,000 shares $4.08 million +4.6%3.1%0.2 $1.12
2/12/20213,480,000 shares $6.65 million -31.6%3.0%0.2 $1.91
1/29/20215,090,000 shares $3.71 million -2.9%8.7%0.4 $0.73
1/15/20215,240,000 shares $3.56 million +123.9%8.9%1 $0.68
12/31/20202,340,000 shares $1.00 million +23.8%4.0%0.7 $0.43
12/15/20201,890,000 shares $691.74 thousand +28.6%3.2%0.9 $0.37
11/30/20201,470,000 shares $602.70 thousand +90.2%2.5%0.7 $0.41
11/15/2020772,700 shares $269.90 thousand -19.8%1.3%0.3 $0.35
10/30/2020962,900 shares $318.72 thousand -24.2%1.6%0.4 $0.33
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10/15/20201,270,000 shares $491.49 thousand -19.1%2.2%0.4 $0.39
9/30/20201,570,000 shares $551.07 thousand -13.7%2.7%0.4 $0.35
9/15/20201,820,000 shares $690.33 thousand -21.2%3.1%0.3 $0.38
8/31/20202,310,000 shares $1.08 million +35.9%3.9%0.5 $0.47

AEZS Short Interest - Frequently Asked Questions

What is Aeterna Zentaris' current short interest?

Short interest is the volume of Aeterna Zentaris shares that have been sold short but have not yet been covered or closed out. As of July 15th, traders have sold 5,300 shares of AEZS short. 0.18% of Aeterna Zentaris' shares are currently sold short. Learn More on Aeterna Zentaris' current short interest.

What is a good short interest percentage for Aeterna Zentaris?

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. 0.18% of Aeterna Zentaris' floating shares are currently sold short.

Is Aeterna Zentaris' short interest increasing or decreasing?

Aeterna Zentaris saw a drop in short interest in the month of July. As of July 15th, there was short interest totaling 5,300 shares, a drop of 7.0% from the previous total of 5,700 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 Aeterna Zentaris' float size?

Aeterna Zentaris currently has issued a total of 1,793,000 shares. Some of Aeterna Zentaris' 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. Aeterna Zentaris currently has a public float of 3,010,000 shares.

How does Aeterna Zentaris' short interest compare to its competitors?

0.18% of Aeterna Zentaris' shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Aeterna Zentaris: Allarity Therapeutics, Inc. (4.92%), Incannex Healthcare Inc. (9.86%), Aytu BioPharma Inc. (10.84%), Finch Therapeutics Group, Inc. (0.01%), Ainos, Inc. (4.41%), 180 Life Sciences Corp. (30.55%), Lexaria Bioscience Corp. (1.74%), Edesa Biotech, Inc. (0.12%), Synlogic, Inc. (0.49%), LakeShore Biopharma Co., Ltd. (0.19%),

Which stocks are the most shorted right now?

As of the most recent reporting period, the following stocks had the largest short interest positions: Charter Communications, Inc. ($4.13 billion), Royal Caribbean Cruises Ltd. ($2.77 billion), Moderna, Inc. ($2.76 billion), Coinbase Global, Inc. ($2.36 billion), Rivian Automotive, Inc. ($2.22 billion), Paychex, Inc. ($2.02 billion), Tractor Supply Company ($1.81 billion), Enphase Energy, Inc. ($1.65 billion), Chesapeake Energy Co. ($1.62 billion), and lululemon athletica inc. ($1.58 billion). View all of the most shorted stocks.

What does it mean to sell short Aeterna Zentaris stock?

Short selling AEZS is an investing strategy that aims to generate trading profit from Aeterna Zentaris as its price is falling. AEZS shares are trading up $0.14 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 Aeterna Zentaris?

A short squeeze for Aeterna Zentaris 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 AEZS, which in turn drives the price of the stock up even further.

How often is Aeterna Zentaris' 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 AEZS, twice per month. The most recent reporting period available is July, 15 2024.




This page (NASDAQ:AEZS) was last updated on 8/29/2025 by MarketBeat.com Staff
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