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CollPlant Biotechnologies (CLGN) Short Interest Ratio & Short Volume

CollPlant Biotechnologies logo
$1.62 -0.06 (-3.57%)
As of 01:36 PM Eastern
This is a fair market value price provided by Polygon.io. Learn more.
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CollPlant Biotechnologies Short Interest Data

CollPlant Biotechnologies (CLGN) has a short interest of 166,400 shares, representing 1.87% of the float (the number of shares available for trading by the public). This marks a 7,823.81% increase in short interest from the previous month. The short interest ratio (days to cover) is 2.1, indicating that it would take 2.1 days of the average trading volume of 29,484 shares to cover all short positions.

Current Short Interest
166,400 shares
Previous Short Interest
2,100 shares
Change Vs. Previous Month
+7,823.81%
Dollar Volume Sold Short
$520.83 thousand
Short Interest Ratio
2.1 Days to Cover
Last Record Date
May 31, 2025
Outstanding Shares
11,455,000 shares
Float Size
8,880,000 shares
Short Percent of Float
1.87%
Today's Trading Volume
35,913 shares
Average Trading Volume
29,484 shares
Today's Volume Vs. Average
122%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

CLGN Short Interest Over Time

CLGN Days to Cover Over Time

CLGN Percentage of Float Shorted Over Time

CollPlant Biotechnologies Short Interest History

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Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
5/31/2025166,400 shares $520.83 thousand +7,823.8%1.9%2.1 $3.13
5/15/20252,100 shares $3.57 thousand +61.5%0.0%0.2 $1.70
4/30/20251,300 shares $2.76 thousand -43.5%0.0%0.1 $2.12
4/15/20252,300 shares $5.65 thousand +21.1%0.0%0.2 $2.46
3/31/20251,900 shares $4.90 thousand No Change0.0%0.2 $2.58
3/15/20251,900 shares $6.21 thousand -60.4%0.0%0.2 $3.27
2/28/20254,800 shares $16.80 thousand -25.0%0.1%0.6 $3.50
2/15/20256,400 shares $23.04 thousand -54.0%0.1%0.6 $3.60
1/31/202513,900 shares $51.36 thousand +162.3%0.2%1.1 $3.70
1/15/20255,300 shares $21.09 thousand -11.7%0.1%0.4 $3.98
12/31/20246,000 shares $21.60 thousand +87.5%0.1%0.4 $3.60
12/15/20243,200 shares $11.81 thousand -52.2%0.0%0.2 $3.69
11/30/20246,700 shares $30.02 thousand -44.6%0.1%0.6 $4.48
11/15/202412,100 shares $50.58 thousand -21.4%0.2%1.1 $4.18
10/31/202415,400 shares $57.60 thousand +6.2%0.2%1.4 $3.74
10/15/202414,500 shares $64.53 thousand +79.0%0.2%1.2 $4.45
9/30/20248,100 shares $38.07 thousand -18.2%0.1%0.7 $4.70
9/15/20249,900 shares $49.60 thousand +5.3%0.1%0.8 $5.01
8/31/20249,400 shares $49.77 thousand +11.9%0.1%0.7 $5.30
8/15/20248,400 shares $38.64 thousand +64.7%0.1%0.6 $4.60
7/31/20245,100 shares $21.83 thousand +34.2%0.1%0.4 $4.28
7/15/20243,800 shares $19.23 thousand +533.3%0.1%0.5 $5.06
6/30/2024600 shares $2.98 thousand -64.7%0.0%0.1 $4.97
6/15/20241,700 shares $8.72 thousand -26.1%0.0%0.2 $5.13
5/31/20242,300 shares $12.88 thousand -66.2%0.0%0.4 $5.60
5/15/20246,800 shares $43.45 thousand +17.2%0.1%1.1 $6.39
4/30/20245,800 shares $34.10 thousand -34.8%0.1%0.8 $5.88
4/15/20248,900 shares $46.06 thousand -17.6%0.1%1.2 $5.18
3/31/202410,800 shares $57.78 thousand +33.3%0.1%1.3 $5.35
3/15/20248,100 shares $40.50 thousand -13.8%0.1%0.7 $5.00
2/29/20249,400 shares $49.07 thousand +20.5%0.1%0.7 $5.22
2/15/20247,800 shares $41.81 thousand -37.1%0.1%0.6 $5.36
1/31/202412,400 shares $67.95 thousand -26.2%0.2%0.8 $5.48
1/15/202416,800 shares $95.76 thousand -33.9%0.2%1.1 $5.70
12/31/202325,400 shares $162.31 thousand +120.9%0.3%1.6 $6.39
12/15/202311,500 shares $60.03 thousand -18.4%0.2%0.8 $5.22
11/30/202314,100 shares $77.27 thousand -20.8%0.2%1.1 $5.48
11/15/202317,800 shares $97.90 thousand -15.6%0.2%1.2 $5.50
10/31/202321,100 shares $113.31 thousand -33.0%0.3%1.5 $5.37
10/15/202331,500 shares $162.86 thousand -12.7%0.4%2.4 $5.17
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9/30/202336,100 shares $201.08 thousand -15.3%0.5%2.3 $5.57
9/15/202342,600 shares $291.81 thousand +1.4%0.6%2.4 $6.85
8/31/202342,000 shares $272.58 thousand +483.3%0.6%2.5 $6.49
8/15/20237,200 shares $44.50 thousand +71.4%0.1%0.5 $6.18
7/31/20234,200 shares $25.49 thousand -56.3%0.1%0.3 $6.07
7/15/20239,600 shares $64.32 thousand +11.6%0.1%0.7 $6.70
6/30/20238,600 shares $69.75 thousand -25.9%0.1%0.9 $8.11
6/15/202311,600 shares $86.42 thousand -53.0%0.2%1.2 $7.45
5/31/202324,700 shares $192.25 thousand +42.0%0.3%2.9 $7.78
5/15/202317,400 shares $118.53 thousand -24.4%0.2%2.3 $6.81
4/30/202323,000 shares $157.55 thousand +0.9%0.3%2.8 $6.85
4/15/202322,800 shares $163.93 thousand +4.6%0.3%1.9 $7.19
3/31/202321,800 shares $153.04 thousand -12.1%0.3%1.5 $7.02
3/15/202324,800 shares $210.81 thousand +17.5%0.3%1.1 $8.50
2/28/202321,100 shares $229.15 thousand -28.5%0.3%0.8 $10.86
2/15/202329,500 shares $348.10 thousand +21.4%0.3%1 $11.80
1/31/202324,300 shares $263.41 thousand -30.4%0.3%0.8 $10.84
1/15/202334,900 shares $282.34 thousand -47.7%0.4%1.2 $8.09
12/30/202266,700 shares $556.95 thousand +171.1%0.7%2.4 $8.35
12/15/202224,600 shares $199.26 thousand +7.4%0.3%1 $8.10
11/30/202222,900 shares $115.19 thousand -14.9%0.2%1.3 $5.03
11/15/202226,900 shares $153.87 thousand +13.5%0.3%1.7 $5.72
10/31/202223,700 shares $148.36 thousand -15.1%0.2%1.7 $6.26
10/15/202227,900 shares $201.72 thousand -7.0%0.3%1.9 $7.23
9/30/202230,000 shares $204 thousand -12.3%0.4%1.7 $6.80
9/15/202234,200 shares $273.43 thousand -22.5%0.4%1.9 $8.00
8/31/202244,100 shares $329.43 thousand -26.3%0.6%2.4 $7.47
8/15/202259,800 shares $597.40 thousand +18.2%0.8%3.3 $9.99
7/31/202250,600 shares $389.11 thousand -7.3%0.7%2.1 $7.69
7/15/202254,600 shares $472.29 thousand -9.8%0.7%2.4 $8.65
6/30/202260,500 shares $484 thousand -17.9%0.8%2.8 $8.00
6/15/202273,700 shares $622.77 thousand -14.3%1.0%3 $8.45
5/31/202286,000 shares $799.80 thousand +5.5%1.2%2.7 $9.30
5/15/202281,500 shares $664.23 thousand +2.5%1.1%2.3 $8.15
4/30/202279,500 shares $791.03 thousand -17.1%1.1%2.3 $9.95
4/15/202295,900 shares $935.03 thousand -24.9%1.3%2.2 $9.75
3/31/2022127,700 shares $1.43 million +24.8%1.7%2.5 $11.22
3/15/2022102,300 shares $946.28 thousand +34.4%1.4%1.6 $9.25
2/28/202276,100 shares $821.88 thousand -3.2%1.0%1 $10.80
2/15/202278,600 shares $808.01 thousand +7.7%1.1%1.1 $10.28
1/31/202273,000 shares $716.86 thousand +32.3%1.0%1 $9.82
1/15/202255,200 shares $646.39 thousand -35.8%N/A0.7 $11.71
12/31/202186,000 shares $1.41 million +156.0%1.1%1.2 $16.36
12/15/202133,600 shares $412.94 thousand +226.2%0.4%0.5 $12.29
11/30/202110,300 shares $177.37 thousand -29.5%0.1%0.3 $17.22
11/15/202114,600 shares $312.88 thousand +24.8%0.2%0.4 $21.43
10/29/202111,700 shares $257.40 thousand +69.6%0.2%0.4 $22.00
10/15/20216,900 shares $112.54 thousand -46.9%0.1%0.3 $16.31
9/30/202113,000 shares $219.70 thousand +16.1%0.2%0.6 $16.90
9/15/202111,200 shares $190.29 thousand -14.5%0.2%0.4 $16.99
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8/31/202113,100 shares $227.94 thousand -25.1%0.2%0.3 $17.40
8/13/202117,500 shares $327.25 thousand No Change0.2%0.4 $18.70
5/14/202127,500 shares $384.45 thousand -53.9%N/A0.4 $13.98
4/30/202159,700 shares $878.19 thousand +136.9%N/A0.5 $14.71
4/15/202125,200 shares $365.90 thousand +641.2%N/A0.2 $14.52
3/31/20213,400 shares $42.47 thousand -63.0%N/A0 $12.49
3/15/20219,200 shares $130.27 thousand +187.5%N/A0.1 $14.16
2/26/20213,200 shares $42.34 thousand +6.7%N/A0 $13.23
2/12/20213,000 shares $72.75 thousand -79.7%N/A0 $24.25
1/29/202114,800 shares $258.85 thousand +516.7%N/A0.3 $17.49
1/15/20212,400 shares $34.78 thousand -69.6%N/A0.1 $14.49
12/31/20207,900 shares $82.04 thousand -43.6%N/A0.3 $10.39
12/15/202014,000 shares $130.34 thousand +3.7%N/A0.5 $9.31
11/30/202013,500 shares $105.98 thousand +150.0%N/A0.6 $7.85
11/15/20205,400 shares $37.53 thousand +170.0%N/A0.3 $6.95
10/30/20202,000 shares $14 thousand -76.7%N/A0.2 $7.00
10/15/20208,600 shares $64.84 thousand +561.5%N/A0.9 $7.54
9/30/20201,300 shares $10.84 thousand -31.6%N/A0.1 $8.34
9/15/20201,900 shares $16.97 thousand +533.3%N/A0.2 $8.93
8/31/2020300 shares $2.72 thousand +50.0%N/A0 $9.06
8/14/2020200 shares $1.83 thousand -77.8%N/A0 $9.13
7/31/2020900 shares $8.16 thousand No ChangeN/A0.2 $9.07
7/15/2020900 shares $8.11 thousand +125.0%N/A0.1 $9.01
6/30/2020400 shares $3.88 thousand -80.0%N/A0.1 $9.71
6/15/20202,000 shares $20.10 thousand -72.2%N/A0.3 $10.05

CLGN Short Interest - Frequently Asked Questions

What is CollPlant Biotechnologies' current short interest?

Short interest is the volume of CollPlant Biotechnologies shares that have been sold short but have not yet been covered or closed out. As of May 31st, traders have sold 166,400 shares of CLGN short. 1.87% of CollPlant Biotechnologies' shares are currently sold short. Learn More on CollPlant Biotechnologies' current short interest.

What is a good short interest ratio for CollPlant Biotechnologies?

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. CLGN shares currently have a short interest ratio of 2.0. Learn More on CollPlant Biotechnologies's short interest ratio.

What is a good short interest percentage for CollPlant Biotechnologies?

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. 1.87% of CollPlant Biotechnologies' floating shares are currently sold short.

Is CollPlant Biotechnologies' short interest increasing or decreasing?

CollPlant Biotechnologies saw a increase in short interest during the month of May. As of May 31st, there was short interest totaling 166,400 shares, an increase of 7,823.8% from the previous total of 2,100 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 CollPlant Biotechnologies' float size?

CollPlant Biotechnologies currently has issued a total of 11,455,000 shares. Some of CollPlant Biotechnologies' 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. CollPlant Biotechnologies currently has a public float of 8,880,000 shares.

How does CollPlant Biotechnologies' short interest compare to its competitors?

1.87% of CollPlant Biotechnologies' shares are currently sold short. Here is how the short interest of companies in the industry of "medical equipment" compare to CollPlant Biotechnologies: Microbot Medical Inc. (30.66%), Fractyl Health, Inc. (13.12%), Nutriband Inc. (4.15%), FONAR Co. (0.44%), Monogram Orthopaedics, Inc. (1.75%), InspireMD, Inc. (1.12%), Sensus Healthcare, Inc. (6.65%), Inovio Pharmaceuticals, Inc. (18.05%), Milestone Scientific Inc. (0.31%), Vivani Medical, Inc. (1.15%),

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 ($64.96 billion), Invesco QQQ ($27.88 billion), iShares Russell 2000 ETF ($19.94 billion), iShares 20+ Year Treasury Bond ETF ($9.69 billion), Strategy Incorporated ($8.58 billion), SPDR S&P Biotech ETF ($5.72 billion), Invesco S&P 500 Equal Weight ETF ($5.45 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($4.70 billion), Charter Communications, Inc. ($4.54 billion), and Industrial Select Sector SPDR Fund ($4.49 billion). View all of the most shorted stocks.

What does it mean to sell short CollPlant Biotechnologies stock?

Short selling CLGN is an investing strategy that aims to generate trading profit from CollPlant Biotechnologies as its price is falling. CLGN shares are trading down $0.05 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 CollPlant Biotechnologies?

A short squeeze for CollPlant Biotechnologies 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 CLGN, which in turn drives the price of the stock up even further.

How often is CollPlant Biotechnologies' 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 CLGN, twice per month. The most recent reporting period available is May, 31 2025.



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This page (NASDAQ:CLGN) was last updated on 6/13/2025 by MarketBeat.com Staff
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