Ionis Pharmaceuticals (IONS) Short Interest Ratio & Short Volume $35.40 +1.65 (+4.89%) (As of 11/20/2024 ET) Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrends Ionis Pharmaceuticals Short Interest DataIonis Pharmaceuticals (IONS) has a short interest of 10.74 million shares, representing 7.37% of the float (the number of shares available for trading by the public). This marks a 8.81% increase in short interest from the previous month. The short interest ratio (days to cover) is 7.0, indicating that it would take 7.0 days of the average trading volume of 1.17 million shares to cover all short positions.Current Short Interest10,740,000 sharesPrevious Short Interest9,870,000 sharesChange Vs. Previous Month+8.81%Dollar Volume Sold Short$412.31 millionShort Interest Ratio7.0 Days to CoverLast Record DateOctober 31, 2024Outstanding Shares157,900,000 sharesFloat Size145,720,000 sharesShort Percent of Float7.37%Today's Trading Volume2,223,069 sharesAverage Trading Volume1,168,921 sharesToday's Volume Vs. Average190% Short Selling Ionis Pharmaceuticals? Sign up to receive the latest short interest report for Ionis Pharmaceuticals and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartIONS Short Interest Over TimeIONS Days to Cover Over TimeIONS Percentage of Float Shorted Over Time Ad WealthPressBreaking News: Tesla headed to $500…That headline hit late last night…and the rally has begun Which is why we want to urge you to go ahead and download Lance’s e-Book now outlining his bullish case for Tesla. 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Ionis Pharmaceuticals Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 10/31/202410,740,000 shares $412.31 million +8.8%7.4%7 $38.39 10/15/20249,870,000 shares $373.48 million -6.3%6.8%6.3 $37.84 9/30/202410,530,000 shares $421.83 million -0.8%7.2%6.6 $40.06 9/15/202410,610,000 shares $447.64 million +4.4%7.3%6.4 $42.19 8/31/202410,160,000 shares $484.43 million +2.6%7.6%6.8 $47.68 8/15/20249,900,000 shares $461.98 million +4.7%7.4%8 $46.67 Get the Latest News and Ratings for IONS and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Ionis Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. 7/31/20249,460,000 shares $467.89 million +1.0%7.0%7 $49.46 7/15/20249,370,000 shares $445.73 million -1.6%7.0%7.2 $47.57 6/30/20249,520,000 shares $453.72 million +10.1%7.1%7.8 $47.66 6/15/20248,650,000 shares $351.62 million +0.6%6.5%7.5 $40.65 5/31/20248,600,000 shares $323.10 million -0.4%6.4%8.3 $37.57 5/15/20248,630,000 shares $338.38 million -1.4%6.4%7.9 $39.21 4/30/20248,750,000 shares $361.03 million -8.2%6.5%8.1 $41.26 4/15/20249,530,000 shares $395.97 million +0.1%7.1%8.9 $41.55 3/31/20249,520,000 shares $412.69 million -1.6%7.1%8.2 $43.35 3/15/20249,670,000 shares $411.46 million +6.2%7.2%8.1 $42.55 2/29/20249,110,000 shares $411.86 million +0.6%6.8%7.4 $45.21 2/15/20249,060,000 shares $410.24 million +7.2%6.8%7.4 $45.28 1/31/20248,450,000 shares $434.25 million -1.1%6.0%7.5 $51.39 1/15/20248,540,000 shares $457.23 million +3.6%6.1%7.4 $53.54 12/31/20238,240,000 shares $416.86 million -3.7%5.9%7.5 $50.59 12/15/20238,560,000 shares $425.43 million -11.8%6.1%7.3 $49.70 11/30/20239,700,000 shares $479.86 million -0.4%6.9%8.7 $49.47 11/15/20239,740,000 shares $484.76 million +0.4%7.0%9.4 $49.77 10/31/20239,700,000 shares $429.42 million +6.2%6.9%9.6 $44.27 10/15/20239,130,000 shares $438.06 million -1.8%6.5%9 $47.98 9/30/20239,300,000 shares $421.85 million -0.9%6.6%9.2 $45.36 9/15/20239,380,000 shares $402.50 million +1.0%6.7%10.1 $42.91 8/31/20239,290,000 shares $374.11 million -3.7%6.6%9.7 $40.27 8/15/20239,650,000 shares $386 million +4.8%6.9%7.9 $40.00 7/31/20239,210,000 shares $381.57 million +4.0%6.6%7.3 $41.43 7/15/20238,860,000 shares $376.37 million +2.8%6.4%7 $42.48 6/30/20238,620,000 shares $353.68 million -0.8%6.2%7.2 $41.03 6/15/20238,690,000 shares $362.29 million +33.3%6.2%7.2 $41.69 5/31/20236,520,000 shares $266.67 million -8.3%4.7%5.5 $40.90 5/15/20237,110,000 shares $257.67 million No Change5.1%7.3 $36.24 10/31/20226,860,000 shares $303.21 million -2.0%4.9%6.9 $44.20 10/15/20227,000,000 shares $324.52 million -3.5%5.0%6.9 $46.36 9/30/20227,250,000 shares $320.67 million +6.6%5.2%7.4 $44.23 9/15/20226,800,000 shares $322.93 million +9.2%4.9%7.1 $47.49Trump’s IRS Hands Massive ‘Victory Gift’ To 401K Owners (Ad)Trump quietly left open an "off the books" wealth-protection loophole hidden in the 6,871 pages of the IRS Tax Code… And since then… "In the know" patriots have quietly used this same "Trump revenge loophole" to shield their life savings from Bidenomics…Get Your Free Gold Guide 8/31/20226,230,000 shares $264.90 million -7.7%4.5%6.8 $42.52 8/15/20226,750,000 shares $299.77 million +10.7%4.8%7.2 $44.41 7/31/20226,100,000 shares $229.12 million +0.5%4.4%6 $37.56 7/15/20226,070,000 shares $238.61 million +5.9%4.3%6.1 $39.31 6/30/20225,730,000 shares $212.12 million +1.4%4.1%5.3 $37.02 6/15/20225,650,000 shares $195.89 million -5.7%4.5%5.1 $34.67 5/31/20225,990,000 shares $218.75 million -16.1%4.3%5.5 $36.52 5/15/20227,140,000 shares $257.61 million +9.2%5.1%6.6 $36.08 4/30/20226,540,000 shares $240.41 million -12.2%4.7%6.1 $36.76 4/15/20227,450,000 shares $305.23 million +3.9%5.3%6.5 $40.97 3/31/20227,170,000 shares $265.58 million -1.7%N/A0 $37.04 3/15/20227,290,000 shares $238.38 million -4.1%5.2%6.6 $32.70 2/28/20227,600,000 shares $253.69 million -18.7%5.4%6.2 $33.38 2/15/20229,350,000 shares $314.72 million -1.8%6.7%7.2 $33.66 1/31/20229,520,000 shares $302.74 million +31.9%6.8%7.7 $31.80 1/15/20227,220,000 shares $238.84 million -1.5%N/A0 $33.08 12/31/20217,330,000 shares $223.05 million -0.8%5.3%6.4 $30.43 12/15/20217,390,000 shares $229.90 million +8.2%5.3%6.6 $31.11 11/30/20216,830,000 shares $181.00 million +10.3%4.9%6.4 $26.50 11/15/20216,190,000 shares $202.97 million -10.4%4.4%6.4 $32.79 10/29/20216,910,000 shares $220.22 million +1.9%5.0%7.5 $31.87 10/15/20216,780,000 shares $237.98 million +2.1%4.9%7.4 $35.10 9/30/20216,640,000 shares $222.71 million -7.4%4.8%7.7 $33.54 9/15/20217,170,000 shares $265.00 million -6.8%5.1%7.3 $36.96 8/31/20217,690,000 shares $305.75 million -8.5%5.5%7.7 $39.76 8/13/20218,400,000 shares $333.31 million -8.6%6.0%6.4 $39.68 7/30/20219,190,000 shares $341.32 million +7.2%6.6%6.1 $37.14 7/15/20218,570,000 shares $305.69 million -4.8%6.4%5.1 $35.67 6/30/20219,000,000 shares $359.01 million +0.3%6.7%5.3 $39.89 6/15/20218,970,000 shares $329.02 million -17.3%6.7%4.9 $36.68 5/28/202110,850,000 shares $404.16 million +1.0%8.1%5.7 $37.25 5/14/202110,740,000 shares $401.35 million +4.2%8.0%6.6 $37.37 4/30/202110,310,000 shares $446.63 million +6.7%7.7%7.1 $43.32 4/15/20219,660,000 shares $404.08 million +10.2%N/A7.5 $41.83 3/31/20218,770,000 shares $392.11 million +2.2%6.5%7.1 $44.71 3/15/20218,580,000 shares $454.65 million +0.9%6.4%7.3 $52.99 2/26/20218,500,000 shares $453.99 million +7.1%6.3%7.9 $53.41 2/12/20217,940,000 shares $460.12 million +5.2%6.0%7.4 $57.95 1/29/20217,550,000 shares $458.21 million +2.6%5.7%6.9 $60.69 1/15/20217,360,000 shares $451.54 million -5.4%5.5%6.8 $61.35 12/31/20207,780,000 shares $445.02 million +7.8%5.9%6.8 $57.20 12/15/20207,220,000 shares $345.33 million +2.1%5.4%6.1 $47.83 11/30/20207,070,000 shares $361.49 million +4.1%5.3%6.7 $51.13 11/15/20206,790,000 shares $350.16 million -5.7%5.1%6.9 $51.57 10/30/20207,200,000 shares $337.32 million -11.8%5.4%7.6 $46.85 10/15/20208,160,000 shares $389.31 million +0.1%6.2%8.9 $47.71 9/30/20208,150,000 shares $386.72 million +3.0%6.1%9.8 $47.45 9/15/20207,910,000 shares $418.68 million +4.1%6.0%10.2 $52.93 8/31/20207,600,000 shares $414.20 million -0.7%5.7%10.4 $54.50 8/14/20207,650,000 shares $403.77 million -6.0%5.8%10 $52.78Trump’s IRS Hands Massive ‘Victory Gift’ To 401K Owners (Ad)Trump quietly left open an "off the books" wealth-protection loophole hidden in the 6,871 pages of the IRS Tax Code… And since then… "In the know" patriots have quietly used this same "Trump revenge loophole" to shield their life savings from Bidenomics…Get Your Free Gold Guide 7/31/20208,140,000 shares $468.54 million -4.6%6.1%10.3 $57.56 7/15/20208,530,000 shares $524.60 million -1.2%6.4%10.6 $61.50 6/30/20208,630,000 shares $508.82 million -5.8%6.5%10.4 $58.96 6/15/20209,160,000 shares $524.04 million +4.0%6.9%10.6 $57.21 5/29/20208,810,000 shares $495.21 million +4.6%6.7%9.4 $56.21 5/15/20208,420,000 shares $446.85 million +4.5%6.4%8.3 $53.07 4/30/20208,060,000 shares $447.57 million -4.6%6.1%8.2 $55.53 4/15/20208,450,000 shares $429.34 million +0.5%6.4%8.6 $50.81 3/31/20208,410,000 shares $489.04 million -4.5%6.4%8.2 $58.15 3/13/20208,810,400 shares $466.95 million +0.1%6.7%7.3 $53.00 2/28/20208,800,000 shares $366.08 million +0.5%6.7%9.1 $41.60 2/14/20208,760,000 shares $462.70 million -9.7%6.6%9.6 $52.82 1/31/20209,700,000 shares $543.39 million +12.0%7.6%10.4 $56.02 1/15/20208,660,000 shares $522.28 million +2.1%6.8%8.8 $60.31 12/31/20198,480,000 shares $503.88 million +10.1%6.6%8.6 $59.42 IONS Short Interest - Frequently Asked Questions What is Ionis Pharmaceuticals' current short interest? Short interest is the volume of Ionis Pharmaceuticals shares that have been sold short but have not yet been closed out or covered. As of October 31st, traders have sold 10,740,000 shares of IONS short. 7.37% of Ionis Pharmaceuticals' shares are currently sold short. Learn More on Ionis Pharmaceuticals' current short interest. What is a good short interest ratio for Ionis Pharmaceuticals? 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. IONS shares currently have a short interest ratio of 7.0. Learn More on Ionis Pharmaceuticals's short interest ratio. Which institutional investors are shorting Ionis Pharmaceuticals? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Ionis Pharmaceuticals: Barclays PLC, Jane Street Group LLC, Wolverine Trading LLC, Walleye Trading LLC, Walleye Capital LLC, and Citigroup Inc.. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for Ionis Pharmaceuticals? 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. 7.37% of Ionis Pharmaceuticals' floating shares are currently sold short. Is Ionis Pharmaceuticals' short interest increasing or decreasing? Ionis Pharmaceuticals saw a increase in short interest during the month of October. As of October 31st, there was short interest totaling 10,740,000 shares, an increase of 8.8% from the previous total of 9,870,000 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. What is Ionis Pharmaceuticals' float size? Ionis Pharmaceuticals currently has issued a total of 157,897,000 shares. Some of Ionis Pharmaceuticals' 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. Ionis Pharmaceuticals currently has a public float of 145,720,000 shares. How does Ionis Pharmaceuticals' short interest compare to its competitors? 7.37% of Ionis Pharmaceuticals' shares are currently sold short. Here is how the short interest of companies compare to Ionis Pharmaceuticals: Biohaven Ltd. (9.05%), Ultragenyx Pharmaceutical Inc. (3.44%), Perrigo Company plc (3.64%), Jazz Pharmaceuticals plc (6.15%), Bausch Health Companies Inc. (3.59%), ACADIA Pharmaceuticals Inc. (5.73%), Arrowhead Pharmaceuticals, Inc. (7.55%), United Therapeutics Co. (5.24%), Incyte Co. (3.90%), Neurocrine Biosciences, Inc. (2.45%), 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. ($4.08 billion), AppLovin Co. ($3.18 billion), Paychex, Inc. ($2.64 billion), Nu Holdings Ltd. ($2.54 billion), International Paper ($2.46 billion), Cencora, Inc. ($2.27 billion), Moderna, Inc. ($1.87 billion), SoFi Technologies, Inc. ($1.81 billion), Lululemon Athletica Inc. ($1.75 billion), and Onsemi ($1.71 billion). View all of the most shorted stocks. What does it mean to sell short Ionis Pharmaceuticals stock? Short selling IONS is an investing strategy that aims to generate trading profit from Ionis Pharmaceuticals as its price is falling. IONS shares are trading up $1.65 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 Ionis Pharmaceuticals? A short squeeze for Ionis Pharmaceuticals occurs when it has a large amount of short interest and its stock appreciates in price. This forces short sellers to cover their short interest positions by buying actual shares of IONS, which in turn drives the price of the stock up even further. How often is Ionis Pharmaceuticals' 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 IONS, twice per month. The most recent reporting period available is October, 31 2024. 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