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ImmunoGen (IMGN) Short Interest Ratio & Short Volume

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ImmunoGen Short Interest Data

ImmunoGen (IMGN) has a short interest of 20.61 million shares. This marks a 9.28% increase in short interest from the previous month. The short interest ratio (days to cover) is 2.5, indicating that it would take 2.5 days of the average trading volume of 8.78 million shares to cover all short positions.

Current Short Interest
20,610,000 shares
Previous Short Interest
18,860,000 shares
Change Vs. Previous Month
+9.28%
Dollar Volume Sold Short
$604.29 million
Short Interest Ratio
2.5 Days to Cover
Last Record Date
January 31, 2024
Outstanding Shares
266,264,000 shares
Percentage of Shares Shorted
7.74%
Today's Trading Volume
40 shares
Average Trading Volume
8,778,325 shares
Today's Volume Vs. Average
0%
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IMGN Short Interest Over Time

IMGN Days to Cover Over Time

IMGN Percentage of Float Shorted Over Time

ImmunoGen Short Interest History

Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
1/31/202420,610,000 shares $604.29 million +9.3%N/A2.5 $29.32
1/15/202418,860,000 shares $561.27 million -8.6%N/A2.3 $29.76
12/31/202320,640,000 shares $611.98 million +5.6%N/A2.6 $29.65
12/15/202319,550,000 shares $575.75 million -48.7%N/A2.6 $29.45
11/30/202338,120,000 shares $1.12 billion +16.7%N/A5.4 $29.35
11/15/202332,660,000 shares $510.80 million +30.5%N/A6.8 $15.64
10/31/202325,030,000 shares $371.95 million +0.7%N/A5.4 $14.86
10/15/202324,860,000 shares $358.73 million +15.0%N/A5.4 $14.43
9/30/202321,620,000 shares $343.11 million +15.1%N/A5.2 $15.87
9/15/202318,780,000 shares $295.22 million -1.7%N/A4.5 $15.72
8/31/202319,100,000 shares $302.54 million +2.6%N/A3.8 $15.84
8/15/202318,620,000 shares $289.73 million +7.9%N/A3.4 $15.56
7/31/202317,250,000 shares $307.40 million +6.9%N/A2.9 $17.82
7/15/202316,130,000 shares $314.54 million -3.6%N/A2 $19.50
6/30/202316,730,000 shares $315.70 million -19.6%N/A2.1 $18.87
6/15/202320,820,000 shares $389.33 million +17.0%N/A2.7 $18.70
5/31/202317,800,000 shares $242.79 million +14.3%N/A2.6 $13.64
5/15/202315,580,000 shares $210.02 million -32.6%N/A2.4 $13.48
4/30/202323,100,000 shares $124.51 million -5.8%N/A3.7 $5.39
4/15/202324,520,000 shares $99.06 million -6.7%N/A7.7 $4.04
3/31/202326,270,000 shares $100.88 million +5.1%N/A8.2 $3.84
3/15/202325,000,000 shares $102.50 million +9.7%N/A7.2 $4.10
2/28/202322,800,000 shares $88.46 million +21.2%N/A6.6 $3.88
2/15/202318,810,000 shares $79.00 million +5.8%N/A5.7 $4.20
1/31/202317,780,000 shares $81.79 million -0.9%N/A5.1 $4.60
1/15/202317,940,000 shares $81.27 million -0.5%N/A4.9 $4.53
12/30/202218,030,000 shares $89.43 million +18.9%N/A4.8 $4.96
12/15/202215,170,000 shares $75.39 million -7.1%N/A4.2 $4.97
11/30/202216,330,000 shares $84.75 million -1.5%N/A4.6 $5.19
11/15/202216,570,000 shares $83.02 million -6.5%N/A4.6 $5.01
10/31/202217,720,000 shares $105.26 million +20.9%N/A5.4 $5.94
10/15/202214,660,000 shares $88.69 million +6.7%N/A4.7 $6.05
9/30/202213,740,000 shares $65.68 million +13.2%N/A4.6 $4.78
9/15/202212,140,000 shares $65.31 million -1.4%N/A4 $5.38
8/31/202212,310,000 shares $71.52 million -13.9%N/A3.9 $5.81
8/15/202214,300,000 shares $83.37 million -11.4%N/A4.3 $5.83
7/31/202216,140,000 shares $76.50 million +8.6%N/A4.3 $4.74
7/15/202214,860,000 shares $79.95 million -5.5%N/A4 $5.38
6/30/202215,730,000 shares $70.79 million -1.8%N/A4.3 $4.50
6/15/202216,020,000 shares $53.99 million +0.7%10.9%4.2 $3.37
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5/31/202215,910,000 shares $58.23 million -16.5%N/A3.8 $3.66
5/15/202219,060,000 shares $73.00 million +12.5%N/A4.7 $3.83
4/30/202216,940,000 shares $81.82 million +15.2%N/A4.7 $4.83
4/15/202214,700,000 shares $78.65 million -10.0%N/A4.2 $5.35
3/31/202216,340,000 shares $77.78 million +1.7%N/A4.6 $4.76
3/15/202216,060,000 shares $79.66 million +6.6%N/A4.9 $4.96
2/28/202215,060,000 shares $84.94 million +16.2%N/A5.6 $5.64
2/15/202212,960,000 shares $75.17 million +1.3%N/A2.9 $5.80
1/31/202212,800,000 shares $72.32 million -2.4%N/A3 $5.65
1/15/202213,110,000 shares $85.08 million +0.7%N/A0 $6.49
12/31/202113,020,000 shares $96.61 million +25.7%N/A3.4 $7.42
12/15/202110,360,000 shares $68.79 million +22.0%N/A2.7 $6.64
11/30/20218,490,000 shares $52.38 million -18.6%4.3%2.4 $6.17
11/15/202110,430,000 shares $59.24 million -35.6%5.6%6.7 $5.68
10/29/202116,200,000 shares $97.69 million -7.0%8.6%11.5 $6.03
10/15/202117,420,000 shares $100.86 million -9.6%9.2%13.4 $5.79
9/30/202119,260,000 shares $109.20 million -8.9%10.2%14.6 $5.67
9/15/202121,130,000 shares $118.96 million -1.2%11.2%15.5 $5.63
8/31/202121,380,000 shares $129.35 million +5.2%11.4%15.5 $6.05
8/13/202120,330,000 shares $109.38 million -2.1%10.6%11.2 $5.38
7/30/202120,760,000 shares $116.46 million +2.4%10.9%11.3 $5.61
7/15/202120,270,000 shares $117.97 million -8.3%10.2%10.8 $5.82
6/30/202122,110,000 shares $145.70 million -4.2%11.1%11.5 $6.59
6/15/202123,070,000 shares $151.11 million +11.2%11.6%11.8 $6.55
5/28/202120,740,000 shares $128.17 million -0.5%10.4%10.4 $6.18
5/14/202120,850,000 shares $133.44 million -0.2%N/A11.8 $6.40
4/30/202120,900,000 shares $167.62 million +0.3%N/A9.2 $8.02
4/15/202120,840,000 shares $158.80 million -6.8%N/A9.1 $7.62
3/31/202122,350,000 shares $179.69 million +0.2%N/A9 $8.04
3/15/202122,310,000 shares $196.77 million -2.5%N/A8.4 $8.82
2/26/202122,890,000 shares $200.97 million -14.0%N/A8.2 $8.78
2/12/202126,630,000 shares $215.17 million -1.3%N/A9.6 $8.08
1/29/202126,970,000 shares $194.72 million +3.2%N/A11.4 $7.22
1/15/202126,130,000 shares $198.07 million -4.1%N/A10.8 $7.58
12/31/202027,240,000 shares $182.24 million +19.5%N/A9.8 $6.69
12/15/202022,790,000 shares $165.46 million +10.7%N/A7.8 $7.26
11/30/202020,590,000 shares $113.66 million -3.0%N/A7.5 $5.52
11/15/202021,230,000 shares $124.62 million +13.4%N/A7.7 $5.87
10/30/202018,720,000 shares $105.96 million +16.7%N/A6.9 $5.66
10/15/202016,040,000 shares $85.81 million -7.5%N/A6 $5.35
9/30/202017,340,000 shares $62.42 million +10.5%N/A7 $3.60
9/15/202015,700,000 shares $64.68 million -10.1%N/A7.2 $4.12
8/31/202017,470,000 shares $64.64 million -1.0%N/A8.1 $3.70
8/14/202017,650,000 shares $64.78 million -0.7%N/A7.9 $3.67
7/31/202017,770,000 shares $73.03 million +9.7%N/A7.7 $4.11
7/15/202016,200,000 shares $74.68 million -1.7%N/A6.6 $4.61
6/30/202016,480,000 shares $75.81 million +38.3%N/A6.6 $4.60
6/15/202011,920,000 shares $55.19 million -1.2%N/A4.5 $4.63
5/29/202012,070,000 shares $57.94 million -5.8%N/A4.4 $4.80
5/15/202012,810,000 shares $56.75 million +5.8%N/A4.5 $4.43
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IMGN Short Interest - Frequently Asked Questions

What is ImmunoGen's current short interest?

Short interest is the volume of ImmunoGen shares that have been sold short but have not yet been covered or closed out. As of January 31st, traders have sold 20,610,000 shares of IMGN short. Learn More on ImmunoGen's current short interest.

What is a good short interest ratio for ImmunoGen?

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. IMGN shares currently have a short interest ratio of 2.0. Learn More on ImmunoGen's short interest ratio.

Is ImmunoGen's short interest increasing or decreasing?

ImmunoGen saw a increase in short interest in January. As of January 31st, there was short interest totaling 20,610,000 shares, an increase of 9.3% from the previous total of 18,860,000 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.

How does ImmunoGen's short interest compare to its competitors?

Here is how the short interest of companies in the industry of "biotechnology" compare to ImmunoGen: Biogen Inc. (2.37%), United Therapeutics Co. (3.77%), Incyte Co. (3.90%), BioMarin Pharmaceutical Inc. (2.72%), Exelixis, Inc. (6.85%), Neurocrine Biosciences, Inc. (4.58%), Exact Sciences Co. (5.88%), Repligen Co. (6.11%), Halozyme Therapeutics, Inc. (7.87%), Madrigal Pharmaceuticals, Inc. (23.94%),

Which stocks are the most shorted right now?

As of the most recent reporting period, the following stocks had the largest short interest positions: T-Mobile US, Inc. ($4.48 billion), General Motors ($3.85 billion), Charter Communications, Inc. ($3.38 billion), Occidental Petroleum Co. ($3.00 billion), Super Micro Computer, Inc. ($2.66 billion), Tractor Supply ($2.37 billion), Coinbase Global, Inc. ($2.25 billion), Moderna, Inc. ($2.11 billion), Royal Caribbean Cruises Ltd. ($2.06 billion), and Floor & Decor Holdings, Inc. ($1.67 billion). View all of the most shorted stocks.

What does it mean to sell short ImmunoGen stock?

Short selling IMGN is an investing strategy that aims to generate trading profit from ImmunoGen as its price is falling. 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 ImmunoGen?

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

How often is ImmunoGen's 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 IMGN, twice per month. The most recent reporting period available is January, 31 2024.




This page (NASDAQ:IMGN) was last updated on 5/10/2025 by MarketBeat.com Staff
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