Ironwood Pharmaceuticals (IRWD) Short Interest Ratio & Short Volume $3.66 -0.12 (-3.17%) As of 01/17/2025 04:00 PM Eastern Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrends Ironwood Pharmaceuticals Short Interest DataIronwood Pharmaceuticals (IRWD) has a short interest of 9.22 million shares, representing 5.92% of the float (the number of shares available for trading by the public). This marks a -23.68% decrease in short interest from the previous month. The short interest ratio (days to cover) is 5.0, indicating that it would take 5.0 days of the average trading volume of 2.32 million shares to cover all short positions.Current Short Interest9,220,000 sharesPrevious Short Interest12,080,000 sharesChange Vs. Previous Month-23.68%Dollar Volume Sold Short$40.84 millionShort Interest Ratio5.0 Days to CoverLast Record DateDecember 31, 2024Outstanding Shares160,030,000 sharesFloat Size155,770,000 sharesShort Percent of Float5.92%Today's Trading Volume1,858,036 sharesAverage Trading Volume2,322,785 sharesToday's Volume Vs. Average80% Short Selling Ironwood Pharmaceuticals? Sign up to receive the latest short interest report for Ironwood 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 ChartIRWD Short Interest Over TimeIRWD Days to Cover Over TimeIRWD Percentage of Float Shorted Over Time Ironwood 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 12/31/20249,220,000 shares $40.84 million -23.7%5.9%5 $4.43 12/15/202412,080,000 shares $42.64 million +7.7%7.8%6.9 $3.53 11/30/202411,220,000 shares $39.49 million +30.9%7.2%7.1 $3.52 11/15/20248,570,000 shares $36.08 million -21.8%5.5%5.3 $4.21 10/31/202410,960,000 shares $43.29 million -8.1%7.0%6.6 $3.95 10/15/202411,930,000 shares $52.37 million +1.2%7.7%6.3 $4.39 9/30/202411,790,000 shares $48.57 million +1.6%7.6%5.9 $4.12 9/15/202411,610,000 shares $53.06 million -14.6%7.5%5.7 $4.57 8/31/202413,600,000 shares $68.82 million -2.9%8.7%5.9 $5.06 8/15/202414,000,000 shares $62.30 million -11.4%9.0%6 $4.45 Get the Latest News and Ratings for IRWD and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Ironwood Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. 7/31/202415,800,000 shares $107.91 million -6.2%10.2%6.3 $6.83 7/15/202416,850,000 shares $109.19 million -6.8%10.9%6.8 $6.48 6/30/202418,070,000 shares $117.82 million -10.6%11.7%6.9 $6.52 6/15/202420,220,000 shares $117.88 million -10.8%13.1%7.3 $5.83 5/31/202422,660,000 shares $142.76 million +0.8%14.6%6.9 $6.30 5/15/202422,480,000 shares $147.47 million +12.0%14.5%5.2 $6.56 4/30/202420,080,000 shares $155.62 million -5.1%13.0%4.5 $7.75 4/15/202421,160,000 shares $164.84 million -3.6%14.0%4.6 $7.79 3/31/202421,950,000 shares $191.18 million +16.9%14.5%4.6 $8.71 3/15/202418,770,000 shares $169.31 million +21.0%12.4%4 $9.02 2/29/202415,510,000 shares $146.26 million -0.6%10.2%3.8 $9.43 2/15/202415,600,000 shares $233.84 million +7.9%10.3%5.5 $14.99 1/31/202414,460,000 shares $205.19 million -10.1%9.5%5.4 $14.19 1/15/202416,080,000 shares $195.37 million +2.0%12.8%6.5 $12.15 12/31/202315,760,000 shares $180.29 million -7.3%10.3%7.4 $11.44 12/15/202317,000,000 shares $189.21 million +2.3%11.2%7.8 $11.13 11/30/202316,620,000 shares $164.54 million -3.1%10.9%6.8 $9.90 11/15/202317,150,000 shares $167.38 million -1.4%11.3%6.9 $9.76 10/31/202317,390,000 shares $155.99 million -0.9%11.4%6.7 $8.97 10/15/202317,540,000 shares $164.00 million -0.6%11.5%6.8 $9.35 9/30/202317,640,000 shares $169.87 million +20.3%11.6%7.1 $9.63 9/15/202314,660,000 shares $122.26 million -5.4%9.6%6.1 $8.34 8/31/202315,500,000 shares $136.40 million +3.9%10.2%7.2 $8.80 8/15/202314,920,000 shares $147.11 million -1.8%9.8%7.1 $9.86 7/31/202315,190,000 shares $168.46 million -6.5%10.0%7.3 $11.09 7/15/202316,250,000 shares $168.35 million +13.5%10.7%7.9 $10.36 6/30/202314,320,000 shares $152.36 million -17.9%9.5%6.4 $10.64 6/15/202317,450,000 shares $192.47 million -1.0%11.5%7 $11.03 5/31/202317,620,000 shares $191.71 million +6.4%11.6%7.3 $10.88 5/15/202316,560,000 shares $174.38 million -3.3%10.9%6.7 $10.53I was wrong. Dead wrong. (Ad)I thought what happened 25 years ago was a once- in-a-lifetime event… but how wrong I was. Because here we are, a quarter of a century later, almost to the exact day, and it’s happening again. Here’s the full story for you. 4/30/202317,130,000 shares $178.32 million -14.9%11.3%7.3 $10.41 4/15/202320,130,000 shares $221.23 million +14.1%13.4%8.8 $10.99 3/31/202317,640,000 shares $185.57 million +8.0%11.8%7.6 $10.52 3/15/202316,330,000 shares $170.32 million +1.0%10.9%8.4 $10.43 2/28/202316,170,000 shares $182.24 million +1.4%10.7%8.3 $11.27 2/15/202315,950,000 shares $178.64 million -0.1%10.6%8.4 $11.20 1/31/202315,970,000 shares $183.97 million +0.1%10.7%8.5 $11.52 1/15/202315,950,000 shares $184.86 million -2.6%10.7%8.7 $11.59 12/30/202216,370,000 shares $202.82 million -3.4%10.9%8.8 $12.39 12/15/202216,950,000 shares $204.25 million +2.8%11.4%8.9 $12.05 11/30/202216,490,000 shares $199.69 million -12.3%11.1%8.2 $12.11 11/15/202218,810,000 shares $214.62 million +9.7%12.6%8.9 $11.41 10/31/202217,150,000 shares $187.62 million -1.6%11.4%8.1 $10.94 10/15/202217,420,000 shares $175.77 million +0.2%11.7%7.5 $10.09 9/30/202217,390,000 shares $180.16 million -3.3%11.7%7.5 $10.36 9/15/202217,980,000 shares $196.16 million -1.1%12.1%7.6 $10.91 8/31/202218,170,000 shares $195.51 million -0.4%12.2%6 $10.76 8/15/202218,240,000 shares $217.24 million +0.9%12.3%5.5 $11.91 7/31/202218,080,000 shares $207.02 million +3.3%12.1%5.3 $11.45 7/15/202217,510,000 shares $203.99 million -6.1%11.7%5.4 $11.65 6/30/202218,650,000 shares $215.03 million +32.5%12.5%5.7 $11.53 6/15/202214,080,000 shares $163.05 million -4.1%9.4%4.3 $11.58 5/31/202214,680,000 shares $165.44 million -7.7%9.8%5.6 $11.27 5/15/202215,900,000 shares $184.28 million -2.8%10.6%6.5 $11.59 4/30/202216,350,000 shares $196.20 million -3.3%10.9%6.5 $12.00 4/15/202216,900,000 shares $208.21 million +5.3%10.9%6.6 $12.32 3/31/202216,050,000 shares $201.91 million +6.2%N/A6 $12.58 3/15/202215,110,000 shares $180.26 million +22.3%9.8%5.9 $11.93 2/28/202212,360,000 shares $132.99 million -6.5%8.0%5 $10.76 2/15/202213,220,000 shares $144.10 million -17.6%8.5%5.4 $10.90 1/31/202216,050,000 shares $178.96 million -3.7%10.1%7.1 $11.15 1/15/202216,670,000 shares $195.37 million -2.1%N/A7.5 $11.72 12/31/202117,030,000 shares $198.57 million -7.0%10.7%8.5 $11.66 12/15/202118,320,000 shares $207.93 million -11.3%11.5%8.9 $11.35 11/30/202120,650,000 shares $229.01 million -1.5%12.9%10.2 $11.09 11/15/202120,960,000 shares $255.50 million -7.0%13.1%11.2 $12.19 10/29/202122,540,000 shares $287.84 million +10.4%14.1%12.1 $12.77 10/15/202120,420,000 shares $278.94 million -0.1%12.9%12 $13.66 9/30/202120,430,000 shares $266.82 million +2.0%12.9%11.7 $13.06 9/15/202120,040,000 shares $242.28 million -4.1%12.6%11.1 $12.09 8/31/202120,890,000 shares $273.66 million +0.2%13.2%11.2 $13.10 8/13/202120,850,000 shares $284.39 million +2.3%13.1%11 $13.64 7/30/202120,380,000 shares $270.44 million +4.1%12.8%10.5 $13.27 7/15/202119,570,000 shares $245.99 million -1.9%12.4%10.2 $12.57 6/30/202119,950,000 shares $256.76 million -3.7%12.6%10.7 $12.87 6/15/202120,710,000 shares $231.54 million +11.1%13.1%12.1 $11.18 5/28/202118,640,000 shares $215.66 million -4.3%11.8%10.5 $11.57 5/14/202119,480,000 shares $223.63 million +6.4%N/A9.2 $11.48 4/30/202118,310,000 shares $206.17 million +0.9%N/A8.5 $11.26 4/15/202118,150,000 shares $192.93 million -6.9%N/A8.3 $10.63I was wrong. Dead wrong. (Ad)I thought what happened 25 years ago was a once- in-a-lifetime event… but how wrong I was. Because here we are, a quarter of a century later, almost to the exact day, and it’s happening again. Here’s the full story for you. 3/31/202119,490,000 shares $213.42 million -5.0%12.6%8.8 $10.95 3/15/202120,510,000 shares $231.97 million +14.5%13.2%9.7 $11.31 2/26/202117,910,000 shares $161.91 million -1.4%11.5%9.2 $9.04 2/12/202118,170,000 shares $183.88 million +5.5%11.7%12 $10.12 1/29/202117,230,000 shares $181.86 million -5.7%11.1%10.5 $10.56 1/15/202118,270,000 shares $207.00 million -0.4%11.8%10.9 $11.33 12/31/202018,340,000 shares $211.09 million -7.0%11.9%11.2 $11.51 12/15/202019,720,000 shares $240.49 million -3.6%12.7%9.7 $12.20 11/30/202020,450,000 shares $241.92 million +0.3%13.2%10.1 $11.83 11/15/202020,380,000 shares $237.63 million -7.9%13.2%10 $11.66 10/30/202022,120,000 shares $212.79 million +5.0%14.3%10.9 $9.62 10/15/202021,060,000 shares $206.18 million +2.2%13.7%10.6 $9.79 9/30/202020,600,000 shares $185.30 million -1.0%13.4%10.4 $9.00 9/15/202020,800,000 shares $211.12 million -2.5%13.5%12.6 $10.15 8/31/202021,330,000 shares $215.43 million -13.4%13.8%11.5 $10.10 8/14/202024,620,000 shares $244.97 million +3.8%16.0%11.3 $9.95 7/31/202023,730,000 shares $217.60 million -4.5%15.4%10.6 $9.17 7/15/202024,840,000 shares $253.86 million -6.5%16.2%11.7 $10.22 6/30/202026,560,000 shares $270.38 million +5.7%17.3%12.7 $10.18 6/15/202025,120,000 shares $233.87 million +3.6%16.4%11.6 $9.31 5/29/202024,250,000 shares $236.44 million -3.7%15.8%11.4 $9.75 5/15/202025,170,000 shares $280.02 million +0.6%16.4%12.4 $11.13 4/30/202025,020,000 shares $250.20 million -4.3%16.3%12.6 $10.00 4/15/202026,140,000 shares $261.66 million -3.9%17.0%13.7 $10.01 3/31/202027,200,000 shares $279.62 million -2.9%17.8%13.5 $10.28 3/13/202027,996,800 shares $272.97 million -3.3%18.3%14.6 $9.75 2/28/202028,950,000 shares $277.92 million +0.8%18.9%15.6 $9.60 2/14/202028,710,000 shares $328.73 million +0.1%18.7%16.1 $11.45 1/31/202028,670,000 shares $317.38 million -0.7%18.9%17.3 $11.07 IRWD Short Interest - Frequently Asked Questions What is Ironwood Pharmaceuticals' current short interest? Short interest is the volume of Ironwood Pharmaceuticals shares that have been sold short but have not yet been covered or closed out. As of December 31st, investors have sold 9,220,000 shares of IRWD short. 5.92% of Ironwood Pharmaceuticals' shares are currently sold short. Learn More on Ironwood Pharmaceuticals' current short interest. What is a good short interest ratio for Ironwood 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. IRWD shares currently have a short interest ratio of 5.0. Learn More on Ironwood Pharmaceuticals's short interest ratio. What is a good short interest percentage for Ironwood 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. 5.92% of Ironwood Pharmaceuticals' floating shares are currently sold short. Is Ironwood Pharmaceuticals' short interest increasing or decreasing? Ironwood Pharmaceuticals saw a decrease in short interest in the month of December. As of December 31st, there was short interest totaling 9,220,000 shares, a decrease of 23.7% from the previous total of 12,080,000 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 Ironwood Pharmaceuticals' float size? Ironwood Pharmaceuticals currently has issued a total of 160,030,000 shares. Some of Ironwood 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. Ironwood Pharmaceuticals currently has a public float of 155,770,000 shares. How does Ironwood Pharmaceuticals' short interest compare to its competitors? 5.92% of Ironwood Pharmaceuticals' shares are currently sold short. Here is how the short interest of companies in the industry of "biotechnology" compare to Ironwood Pharmaceuticals: Amicus Therapeutics, Inc. (6.48%), Geron Co. (10.76%), Ligand Pharmaceuticals Incorporated (4.76%), MannKind Co. (10.78%), Celldex Therapeutics, Inc. (12.19%), Dynavax Technologies Co. (13.03%), BioCryst Pharmaceuticals, Inc. (7.59%), Novavax, Inc. (23.05%), Myriad Genetics, Inc. (5.25%), Innoviva, Inc. (16.76%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: AppLovin Co. ($5.83 billion), Charter Communications, Inc. ($3.77 billion), Reddit, Inc. ($2.98 billion), The Kroger Co. ($2.97 billion), International Paper ($2.64 billion), SoFi Technologies, Inc. ($1.99 billion), Rivian Automotive, Inc. ($1.93 billion), Onsemi ($1.81 billion), SoundHound AI, Inc. ($1.59 billion), and Moderna, Inc. ($1.57 billion). View all of the most shorted stocks. What does it mean to sell short Ironwood Pharmaceuticals stock? Short selling IRWD is an investing strategy that aims to generate trading profit from Ironwood Pharmaceuticals as its price is falling. IRWD shares are trading down $0.12 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 Ironwood Pharmaceuticals? A short squeeze for Ironwood 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 IRWD, which in turn drives the price of the stock up even further. How often is Ironwood 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 IRWD, twice per month. The most recent reporting period available is December, 31 2024. More Short Interest Resources from MarketBeat Related Companies Ligand Pharmaceuticals Short Interest Geron Short Interest MannKind Short Interest Dynavax Technologies Short Interest BioCryst Pharmaceuticals Short Interest Celldex Therapeutics Short Interest Novavax Short Interest Myriad Genetics Short Interest Innoviva Short Interest OPKO Health 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:IRWD) was last updated on 1/18/2025 by MarketBeat.com Staff From Our PartnersDo this Before Elon’s Reveal on January 22ndElon’s newest tech could pay you an extra $30,000 a year — while you sleep. It’s smaller than a quarter but...Brownstone Research | Sponsoredliberals FOOLED by Elon’s shocking surpriseElon Musk and Donald Trump fooled everyone. They said it was to “save free speech”... 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