IGM Biosciences (IGMS) Short Interest Ratio & Short Volume $1.35 -0.01 (-0.74%) Closing price 07/15/2025 04:00 PM EasternExtended Trading$1.35 0.00 (0.00%) As of 07/15/2025 04:29 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 Polygon.io. Learn more. Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock IGM Biosciences Short Interest DataIGM Biosciences (IGMS) has a short interest of 393,600 shares, representing 2.36% of the float (the number of shares available for trading by the public). This marks a -45.42% decrease in short interest from the previous month. The short interest ratio (days to cover) is 0.8, indicating that it would take 0.8 days of the average trading volume of 377,481 shares to cover all short positions.Current Short Interest393,600 sharesPrevious Short Interest721,100 sharesChange Vs. Previous Month-45.42%Dollar Volume Sold Short$440.83 thousandShort Interest Ratio0.8 Days to CoverLast Record DateJune 30, 2025Outstanding Shares59,780,000 sharesFloat Size16,710,000 sharesShort Percent of Float2.36%Today's Trading Volume481,602 sharesAverage Trading Volume377,481 sharesToday's Volume Vs. Average128% Short Selling IGM Biosciences? Sign up to receive the latest short interest report for IGM Biosciences and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartIGMS Short Interest Over TimeIGMS Days to Cover Over TimeIGMS Percentage of Float Shorted Over Time IGM Biosciences Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 6/30/2025393,600 shares $440.83 thousand -45.4%2.4%0.8 $1.12 6/15/2025721,100 shares $872.53 thousand -6.8%4.3%4.1 $1.21 5/31/2025773,500 shares $990.08 thousand -21.8%4.6%4.3 $1.28 5/15/2025988,800 shares $1.14 million +13.1%5.9%5.7 $1.15 4/30/2025874,500 shares $1.21 million -2.2%5.3%4.4 $1.39 4/15/2025894,100 shares $1.14 million -8.8%5.5%3.6 $1.27 3/31/2025980,300 shares $1.13 million +5.6%6.0%2.3 $1.15 3/15/2025928,300 shares $1.15 million -19.3%5.7%2.1 $1.24 2/28/20251,150,000 shares $1.56 million +7.5%7.0%2.6 $1.36 2/15/20251,070,000 shares $1.53 million +11.5%6.6%2.4 $1.43 Get the Latest News and Ratings for IGMS and Related StocksEnter your email address below to receive the latest news and analysts' ratings for IGM Biosciences and its competitors with MarketBeat's FREE daily newsletter. 1/31/2025959,700 shares $1.45 million -51.0%5.5%2.1 $1.51 1/15/20251,960,000 shares $3.92 million -21.9%11.1%4.5 $2.00 12/31/20242,510,000 shares $15.34 million -4.9%14.3%8 $6.11 12/15/20242,640,000 shares $18.93 million -2.2%15.0%9.9 $7.17 11/30/20242,700,000 shares $27.11 million -4.9%15.4%8.7 $10.04 11/15/20242,840,000 shares $26.89 million -15.7%16.2%9.3 $9.47 10/31/20243,370,000 shares $57.76 million -8.4%16.3%11.6 $17.14 10/15/20243,680,000 shares $56.78 million -8.5%17.8%12.1 $15.43 9/30/20244,020,000 shares $66.49 million -23.9%19.3%11.4 $16.54 9/15/20245,280,000 shares $64.94 million -4.7%25.3%16.7 $12.30 8/31/20245,540,000 shares $56.45 million -4.2%26.7%20 $10.19 8/15/20245,780,000 shares $53.58 million +2.5%27.8%16.4 $9.27 7/31/20245,640,000 shares $62.94 million -1.1%27.2%15.6 $11.16 7/15/20245,700,000 shares $59.11 million +9.2%27.2%15.2 $10.37 6/30/20245,220,000 shares $35.86 million +0.8%24.9%16.1 $6.87 6/15/20245,180,000 shares $37.71 million +0.8%24.7%16.1 $7.28 5/31/20245,140,000 shares $42.82 million -2.7%24.1%15.8 $8.33 5/15/20245,280,000 shares $50.11 million -15.4%24.8%17.2 $9.49 4/30/20246,240,000 shares $60.09 million +18.9%29.9%21.6 $9.63 4/15/20245,250,000 shares $49.40 million +0.6%25.0%19.4 $9.41 3/31/20245,220,000 shares $50.37 million +9.7%25.1%18.5 $9.65 3/15/20244,760,000 shares $50.65 million +5.5%22.9%16.4 $10.64 2/29/20244,510,000 shares $56.96 million -1.3%21.4%14.5 $12.63 2/15/20244,570,000 shares $70.38 million -2.6%21.9%14 $15.40 1/31/20244,690,000 shares $49.34 million -4.1%22.5%15.3 $10.52 1/15/20244,890,000 shares $53.50 million +4.7%23.5%14.2 $10.94 12/31/20234,670,000 shares $38.81 million +7.9%22.4%13.2 $8.31 12/15/20234,330,000 shares $28.58 million +5.4%20.9%12.5 $6.60 11/30/20234,110,000 shares $27.70 million -1.0%19.8%12.6 $6.74 11/15/20234,150,000 shares $24.49 million -17.0%20.0%13.9 $5.90The $7 company helping Nvidia build the world’s first trillion-dollar robot … (Ad)Michael Robinson has been at the forefront of the technology market for over 40 years. 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Click here to find out more. 10/31/20235,000,000 shares $19.70 million -6.2%24.1%17.2 $3.94 10/15/20235,330,000 shares $23.51 million +1.5%25.7%20.6 $4.41 9/30/20235,250,000 shares $43.84 million -6.6%25.3%22.1 $8.35 9/15/20235,620,000 shares $41.36 million -0.4%27.1%21.3 $7.36 8/31/20235,640,000 shares $40.33 million +2.9%28.2%19 $7.15 8/15/20235,480,000 shares $42.74 million +12.3%27.4%17.1 $7.80 7/31/20234,880,000 shares $51.92 million -1.6%24.3%15.2 $10.64 7/15/20234,960,000 shares $49.60 million +2.3%26.1%15.8 $10.00 6/30/20234,850,000 shares $44.77 million +8.3%26.3%14.3 $9.23 6/15/20234,480,000 shares $45.07 million +2.5%24.2%13.4 $10.06 5/31/20234,370,000 shares $52.66 million +5.1%24.8%16.3 $12.05 5/15/20234,160,000 shares $57.32 million +2.5%23.7%18 $13.78 4/30/20234,060,000 shares $43.97 million +3.3%23.3%17.9 $10.83 4/15/20233,930,000 shares $43.66 million +7.4%22.8%18.2 $11.11 3/31/20233,660,000 shares $50.29 million -0.5%21.2%16.1 $13.74 3/15/20233,680,000 shares $69.59 million +3.7%21.1%20.5 $18.91 2/28/20233,550,000 shares $74.62 million -2.2%20.3%18.1 $21.02 2/15/20233,630,000 shares $87.05 million -4.5%20.8%17.4 $23.98 1/31/20233,800,000 shares $86.37 million +5.0%21.8%16.2 $22.73 1/15/20233,620,000 shares $91.69 million +4.3%20.9%15.1 $25.33 12/30/20223,470,000 shares $59.02 million -4.7%20.0%16 $17.01 12/15/20223,640,000 shares $67.34 million +12.7%20.9%15.8 $18.50 11/30/20223,230,000 shares $71.09 million -9.3%18.7%14.9 $22.01 11/15/20223,560,000 shares $92.63 million +5.6%20.6%16.2 $26.02 10/31/20223,370,000 shares $67.40 million -2.3%19.5%17.4 $20.00 10/15/20223,450,000 shares $71.35 million +3.6%19.9%18 $20.68 9/30/20223,330,000 shares $75.72 million +3.4%19.2%17 $22.74 9/15/20223,220,000 shares $71.55 million -3.9%18.6%16.2 $22.22 8/31/20223,350,000 shares $65.02 million +3.1%20.1%15.3 $19.41 8/15/20223,250,000 shares $87.78 million -2.1%19.5%13.7 $27.01 7/31/20223,320,000 shares $53.49 million +1.2%21.1%12.2 $16.11 7/15/20223,280,000 shares $61.01 million +6.2%20.8%11.1 $18.60 6/30/20223,090,000 shares $55.71 million +4.4%19.6%9.1 $18.03 6/15/20222,960,000 shares $41.88 million -10.0%18.8%2.5 $14.15 5/31/20223,290,000 shares $55.21 million -6.3%20.9%2.8 $16.78 5/15/20223,510,000 shares $51.11 million -10.7%22.3%3 $14.56 4/30/20223,930,000 shares $65.79 million -9.0%27.0%3.4 $16.74 4/15/20224,320,000 shares $87.48 million -1.6%29.6%3.7 $20.25 3/31/20224,390,000 shares $117.34 million -3.1%N/A3.8 $26.73 3/15/20224,530,000 shares $60.79 million -1.7%30.8%14.3 $13.42 2/28/20224,610,000 shares $76.89 million -1.5%31.3%13.5 $16.68 2/15/20224,680,000 shares $80.96 million +2.2%31.7%13.8 $17.30 1/31/20224,580,000 shares $81.07 million +7.0%31.1%13.8 $17.70 1/15/20224,280,000 shares $93.65 million +3.6%N/A0 $21.88 12/31/20214,130,000 shares $121.13 million +14.1%28.0%15.4 $29.33 12/15/20213,620,000 shares $102.63 million -0.8%24.5%14.3 $28.35 11/30/20213,650,000 shares $182.21 million +1.1%24.8%20.9 $49.92 11/15/20213,610,000 shares $216.56 million +7.8%24.4%21.7 $59.99 10/29/20213,350,000 shares $157.18 million +2.8%22.9%21.6 $46.92 10/15/20213,260,000 shares $192.05 million +3.2%22.6%23.7 $58.91The End of Elon Musk…? 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According to his research, if you listen to the media and miss out on Elon's newest breakthrough, it's going to cost you the fortune of a lifetime.Click here to see why the "End of Elon" crowd is about to be wrong again. 9/30/20213,160,000 shares $207.80 million -1.3%21.9%24.1 $65.76 9/15/20213,200,000 shares $218.75 million -3.6%22.2%24.7 $68.36 8/31/20213,320,000 shares $236.42 million -0.3%23.1%24.2 $71.21 8/13/20213,330,000 shares $251.55 million +12.9%23.1%23 $75.54 7/30/20212,950,000 shares $200.63 million +1.0%20.6%19.6 $68.01 7/15/20212,920,000 shares $238.80 million -1.0%20.4%20.2 $81.78 6/30/20212,950,000 shares $245.44 million -3.6%20.6%18.4 $83.20 6/15/20213,060,000 shares $272.10 million +6.3%21.3%17.1 $88.92 5/28/20212,880,000 shares $214.99 million -3.4%20.1%14.7 $74.65 5/14/20212,980,000 shares $194.92 million -0.7%20.8%15.1 $65.41 4/30/20213,000,000 shares $215.37 million -0.3%21.0%15 $71.79 4/15/20213,010,000 shares $192.43 million -15.5%21.1%15.3 $63.93 3/31/20213,560,000 shares $267.21 million +47.7%24.9%18.2 $75.06 3/15/20212,410,000 shares $211.67 million +12.6%16.9%11.5 $87.83 2/26/20212,140,000 shares $179.65 million +10.3%15.0%7.4 $83.95 2/12/20211,940,000 shares $212.14 million -13.8%13.6%6.7 $109.35 1/29/20212,250,000 shares $214.52 million -8.5%15.8%7.6 $95.34 1/15/20212,460,000 shares $232.40 million -3.9%17.3%7.9 $94.47 12/31/20202,560,000 shares $233.42 million +18.0%18.0%8 $91.18 12/15/20202,170,000 shares $189.74 million -6.1%15.3%6.9 $87.44 11/30/20202,310,000 shares $156.34 million +5.5%17.6%7.7 $67.68 11/15/20202,190,000 shares $117.10 million +12.3%16.7%10.2 $53.47 10/30/20201,950,000 shares $107.13 million +29.1%14.9%9.8 $54.94 10/15/20201,510,000 shares $118.23 million -3.8%11.5%9.1 $78.30 9/30/20201,570,000 shares $115.88 million +1.3%12.0%11.2 $73.81 9/15/20201,550,000 shares $103.21 million +14.0%11.8%11.6 $66.59 8/31/20201,360,000 shares $58.48 million +3.0%10.4%12.6 $43.00 8/14/20201,320,000 shares $68.53 million +1.5%10.1%13.5 $51.92 7/31/20201,300,000 shares $65.34 million +20.4%10.0%13.2 $50.26 IGMS Short Interest - Frequently Asked Questions What is IGM Biosciences' current short interest? Short interest is the volume of IGM Biosciences shares that have been sold short but have not yet been closed out or covered. As of June 30th, traders have sold 393,600 shares of IGMS short. 2.36% of IGM Biosciences' shares are currently sold short. Learn More on IGM Biosciences' current short interest. What is a good short interest ratio for IGM Biosciences? 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. IGMS shares currently have a short interest ratio of 1.0. Learn More on IGM Biosciences's short interest ratio. Which institutional investors are shorting IGM Biosciences? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of IGM Biosciences: Simplex Trading LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for IGM Biosciences? 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. 2.36% of IGM Biosciences' floating shares are currently sold short. Is IGM Biosciences' short interest increasing or decreasing? IGM Biosciences saw a decrease in short interest in the month of June. As of June 30th, there was short interest totaling 393,600 shares, a decrease of 45.4% from the previous total of 721,100 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 IGM Biosciences' float size? IGM Biosciences currently has issued a total of 59,780,000 shares. Some of IGM Biosciences' 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. IGM Biosciences currently has a public float of 16,710,000 shares. How does IGM Biosciences' short interest compare to its competitors? 2.36% of IGM Biosciences' shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to IGM Biosciences: Aerovate Therapeutics, Inc. (21.72%), Atea Pharmaceuticals, Inc. (5.49%), DBV Technologies S.A. (0.07%), Annexon, Inc. (10.39%), Olema Pharmaceuticals, Inc. (14.24%), Rocket Pharmaceuticals, Inc. (16.90%), COMPASS Pathways PLC Sponsored ADR (10.56%), Abeona Therapeutics Inc. (18.30%), Monte Rosa Therapeutics, Inc. (19.27%), Lifecore Biomedical, Inc. (7.04%), 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 ($72.10 billion), Invesco QQQ ($26.89 billion), iShares Russell 2000 ETF ($19.61 billion), MicroStrategy Incorporated ($9.52 billion), iShares 20+ Year Treasury Bond ETF ($8.70 billion), WD-40 Company ($7.66 billion), Technology Select Sector SPDR Fund ($6.10 billion), Invesco S&P 500 Equal Weight ETF ($5.80 billion), Invesco S&P 500 Top 50 ETF ($5.53 billion), and Vanguard Large-Cap ETF ($5.35 billion). View all of the most shorted stocks. What does it mean to sell short IGM Biosciences stock? Short selling IGMS is an investing strategy that aims to generate trading profit from IGM Biosciences as its price is falling. IGMS shares are trading down $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. How does a short squeeze work against IGM Biosciences? A short squeeze for IGM Biosciences 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 IGMS, which in turn drives the price of the stock up even further. How often is IGM Biosciences' 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 IGMS, twice per month. The most recent reporting period available is June, 30 2025. More Short Interest Resources from MarketBeat Related Companies AVTE Short Squeeze AVIR Short Squeeze DBVT Short Squeeze ANNX Short Squeeze OLMA Short Squeeze RCKT Short Squeeze CMPS Short Squeeze ABEO Short Squeeze GLUE Short Squeeze LFCR Short Squeeze Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:IGMS) was last updated on 7/16/2025 by MarketBeat.com Staff From Our PartnersINVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting OffRight now, we’re witnessing a monumental shift in the world.Traders Agency | SponsoredWhy Elon is funding the “Quantum Power Grid”Elon knows the future isn’t about smarter AI — it’s about powering it. And this new technology is quietly b...True Market Insiders | SponsoredThe Robotics Revolution has arrived … and one $7 stock could take off as a result.Something big is brewing in Washington. 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