NASDAQ:IONS Ionis Pharmaceuticals (IONS) Short Interest Ratio & Short Volume $41.75 -1.19 (-2.77%) (As of 06/2/2023 06:55 PM ET) Add Compare Share Share Today's Range$41.17▼$43.4050-Day Range$33.72▼$42.9452-Week Range$32.69▼$48.82Volume959,000 shsAverage Volume992,691 shsMarket Capitalization$5.97 billionP/E RatioN/ADividend YieldN/APrice Target$46.64 Short InterestProfileAnalyst RatingsChartCompetitorsEarningsFinancialsInsider TradesInstitutional OwnershipHeadlinesOptions ChainSEC FilingsShort InterestSocial MediaSustainabilityProfileAnalyst RatingsChartCompetitorsEarningsFinancialsInsider TradesInstitutional OwnershipHeadlinesOptions ChainSEC FilingsShort InterestSocial MediaSustainability Ionis Pharmaceuticals Short Interest DataCurrent Short Volume7,110,000 sharesPrevious Short Volume7,020,000 sharesChange Vs. Previous Month+1.28%Dollar Volume Sold Short$257.67 millionShort Interest Ratio / Days to Cover7.3Last Record DateMay 15, 2023Outstanding Shares143,100,000 sharesFloat Size139,170,000 sharesShort Percent of Float5.11%Today's Trading Volume959,000 sharesAverage Trading Volume992,691 sharesToday's Volume Vs. Average97% 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 InterestDays to CoverShort Percent of FloatIONS Short Interest Over TimeIONS Days to Cover Over TimeIONS Percentage of Float Shorted Over Time Ionis Pharmaceuticals (NASDAQ:IONS) Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 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 $47.49 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 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 May 15th, investors have sold 7,110,000 shares of IONS short. 5.11% 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: Susquehanna International Group LLP, Jane Street Group LLC, Boothbay Fund Management LLC, Group One Trading L.P., BNP Paribas Arbitrage SNC, Citigroup Inc., Wolverine Asset Management LLC, and 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 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. 5.11% 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 in May. As of May 15th, there was short interest totaling 7,110,000 shares, an increase of 1.3% from the previous total of 7,020,000 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 143,100,000 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 139,170,000 shares. How does Ionis Pharmaceuticals' short interest compare to its competitors? 5.11% of Ionis Pharmaceuticals' shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical preparations" compare to Ionis Pharmaceuticals: Madrigal Pharmaceuticals, Inc. (9.01%), Alkermes plc (4.49%), Amicus Therapeutics, Inc. (7.53%), ImmunoGen, Inc. (6.89%), United Therapeutics Co. (2.86%), Geron Co. (4.54%), Ironwood Pharmaceuticals, Inc. (10.94%), BioMarin Pharmaceutical Inc. (3.73%), Intra-Cellular Therapies, Inc. (3.71%), Grifols, S.A. (2.24%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Enbridge Inc. ($4.29 billion), T-Mobile US, Inc. ($4.17 billion), Charter Communications, Inc. ($3.07 billion), Occidental Petroleum Co. ($2.81 billion), Moderna, Inc. ($2.37 billion), Coinbase Global, Inc. ($2.27 billion), T. Rowe Price Group, Inc. ($1.98 billion), Verisk Analytics, Inc. ($1.94 billion), Extra Space Storage Inc. ($1.88 billion), and Xylem Inc. ($1.61 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 down $1.19 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 increases 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 May, 15 2023. More Short Interest Resources from MarketBeat Related Companies: MDGL Short Interest ALKS Short Interest FOLD Short Interest IMGN Short Interest UTHR Short Interest GERN Short Interest IRWD Short Interest BMRN Short Interest ITCI Short Interest GRFS Short Interest Short Interest Tools: Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:IONS) was last updated on 6/5/2023 by MarketBeat.com Staff Adding Choose a watchlist: Watchlist Adding You have already added five stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding Ionis Pharmaceuticals, Inc. Please log in to your account or sign up in order to add this asset to your watchlist. 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