Icon (ICLR) Short Interest Ratio & Short Volume $145.40 -0.05 (-0.03%) As of 10:07 AM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Icon Short Interest DataIcon (ICLR) has a short interest of 1.73 million shares, representing 2.16% of the float (the number of shares available for trading by the public). This marks a 19.31% increase in short interest from the previous month. The short interest ratio (days to cover) is 1.1, indicating that it would take 1.1 days of the average trading volume of 1.27 million shares to cover all short positions.Current Short Interest1,730,000 sharesPrevious Short Interest1,450,000 sharesChange Vs. Previous Month+19.31%Dollar Volume Sold Short$251.99 millionShort Interest Ratio1.1 Days to CoverLast Record DateJune 15, 2025Outstanding Shares80,760,000 sharesFloat Size80,240,000 sharesShort Percent of Float2.16%Today's Trading Volume44,101 sharesAverage Trading Volume1,266,820 sharesToday's Volume Vs. Average3% Short Selling Icon? Sign up to receive the latest short interest report for Icon and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartICLR Short Interest Over TimeICLR Days to Cover Over TimeICLR Percentage of Float Shorted Over Time Icon Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 6/15/20251,730,000 shares $251.99 million +19.3%2.2%1.1 $145.66 5/31/20251,450,000 shares $188.33 million -5.2%1.8%1 $129.88 5/15/20251,530,000 shares $199.91 million +25.4%1.9%1.1 $130.66 4/30/20251,220,000 shares $184.76 million -36.1%1.5%0.9 $151.44 4/15/20251,910,000 shares $277.26 million -16.2%2.4%1.7 $145.16 3/31/20252,280,000 shares $398.98 million +41.6%2.8%2.2 $174.99 3/15/20251,610,000 shares $297.17 million -4.7%2.0%1.7 $184.58 2/28/20251,690,000 shares $321.13 million +14.2%2.1%1.7 $190.02 2/15/20251,480,000 shares $275.59 million +6.5%1.9%1.4 $186.21 1/31/20251,390,000 shares $276.72 million -13.7%1.7%1.2 $199.08 Get the Latest News and Ratings for ICLR and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Icon and its competitors with MarketBeat's FREE daily newsletter. 1/15/20251,610,000 shares $321.15 million +2.6%2.0%1.2 $199.47 12/31/20241,570,000 shares $329.24 million +3.3%1.9%1.2 $209.71 12/15/20241,520,000 shares $316.39 million +14.3%1.9%1.2 $208.15 11/30/20241,330,000 shares $279.63 million +3.9%1.6%1 $210.25 11/15/20241,280,000 shares $242.74 million +18.5%1.6%1.1 $189.64 10/31/20241,080,000 shares $239.88 million -38.3%1.3%1.1 $222.11 10/15/20241,750,000 shares $516.02 million -0.6%2.1%2.9 $294.87 9/30/20241,760,000 shares $505.67 million +18.1%2.1%3.1 $287.31 9/15/20241,490,000 shares $447 million -3.9%1.8%2.4 $300.00 8/31/20241,550,000 shares $499.19 million -2.5%1.9%2.7 $322.06 8/15/20241,590,000 shares $511.23 million -3.6%1.9%2.8 $321.53 7/31/20241,650,000 shares $541.93 million +12.2%2.0%2.8 $328.44 7/15/20241,470,000 shares $501.06 million -26.9%1.8%2.4 $340.86 6/30/20242,010,000 shares $630.07 million -4.3%2.5%3.4 $313.47 6/15/20242,100,000 shares $657.99 million +7.1%2.6%4.1 $313.33 5/31/20241,960,000 shares $636.65 million +3.7%2.4%3.8 $324.82 5/15/20241,890,000 shares $608.20 million -1.6%2.3%3.7 $321.80 4/30/20241,920,000 shares $571.93 million +21.5%2.3%3.4 $297.88 4/15/20241,580,000 shares $472.61 million +13.7%1.9%2.9 $299.12 3/31/20241,390,000 shares $466.97 million -6.7%1.7%2.5 $335.95 3/15/20241,490,000 shares $498.79 million -2.6%1.8%2.7 $334.76 2/29/20241,530,000 shares $490.55 million -15.5%1.9%2.7 $320.62 2/15/20241,810,000 shares $525.15 million -10.4%2.2%3.3 $290.14 1/31/20242,020,000 shares $526.96 million +21.0%2.5%4.1 $260.87 1/15/20241,670,000 shares $425.85 million -3.5%2.1%3.1 $255.00 12/31/20231,730,000 shares $489.71 million +11.6%2.1%3.2 $283.07 12/15/20231,550,000 shares $432.50 million -7.7%1.9%3 $279.03 11/30/20231,680,000 shares $448.46 million -2.3%2.1%3.2 $266.94 11/15/20231,720,000 shares $462.34 million -8.0%2.1%3.4 $268.80 10/31/20231,870,000 shares $456.21 million +1.6%2.3%3.5 $243.96The #1 AI Energy Stock (Ad)Nearly $600 billion is projected to be spent on AI data centers this year. That's because the ones being built now will dwarf everything that came before them. Thanks to AI's ravenous hunger for power … They are beginning to morph into sprawling behemoths.Click here to learn more about the #1 AI Energy Stock of 2025 10/15/20231,840,000 shares $454.92 million -25.2%2.3%3.3 $247.24 9/30/20232,460,000 shares $605.78 million +15.5%3.0%4.5 $246.25 9/15/20232,130,000 shares $557.44 million -4.9%2.6%3.6 $261.71 8/31/20232,240,000 shares $582.27 million -15.2%2.7%3.3 $259.94 8/15/20232,640,000 shares $684.00 million +17.3%3.2%3.7 $259.09 7/31/20232,250,000 shares $565.67 million -9.6%2.8%3 $251.41 7/15/20232,490,000 shares $613.16 million +5.5%3.0%3.1 $246.25 6/30/20232,360,000 shares $590.47 million +32.6%2.9%3.1 $250.20 6/15/20231,780,000 shares $415.84 million +31.9%2.2%2.5 $233.62 5/31/20231,350,000 shares $287.59 million +13.5%1.7%2.2 $213.03 5/15/20231,190,000 shares $244.96 million No Change1.5%1.9 $205.85 10/31/2022859,600 shares $170.06 million -32.3%N/A1.5 $197.84 10/15/20221,270,000 shares $220.85 million -3.8%N/A2.3 $173.90 9/30/20221,320,000 shares $242.59 million -18.5%N/A2.8 $183.78 9/15/20221,620,000 shares $338.26 million +39.7%N/A3.4 $208.80 8/31/20221,160,000 shares $243.40 million -10.1%N/A2.5 $209.83 8/15/20221,290,000 shares $319.28 million +11.2%N/A2.7 $247.50 7/31/20221,160,000 shares $279.85 million -16.6%N/A2.4 $241.25 7/15/20221,390,000 shares $293.47 million -6.1%N/A2.9 $211.13 6/30/20221,480,000 shares $320.72 million +46.5%N/A3 $216.70 6/15/20221,010,000 shares $207.65 million +35.9%N/A2.1 $205.59 5/31/2022743,000 shares $166.28 million -11.4%N/A1.4 $223.79 5/15/2022838,500 shares $176.92 million +10.1%N/A1.4 $211.00 4/30/2022761,700 shares $172.30 million -23.8%N/A1.2 $226.21 4/15/20221,000,000 shares $246.04 million -8.3%N/A1.6 $246.04 3/31/20221,090,000 shares $265.11 million +19.9%N/A1.7 $243.22 3/15/2022908,900 shares $202.98 million -6.1%N/A1.4 $223.32 2/28/2022967,600 shares $230.30 million -2.6%N/A1.5 $238.01 2/15/2022993,300 shares $240.74 million -12.9%N/A1.7 $242.36 1/31/20221,140,000 shares $302.92 million -8.1%N/A2.3 $265.72 1/15/20221,240,000 shares $330.32 million +11.7%N/A2.5 $266.39 12/31/20211,110,000 shares $343.77 million +12.1%N/A2.5 $309.70 12/15/2021989,800 shares $284.38 million +15.3%N/A2.3 $287.31 11/30/2021858,500 shares $232.20 million +14.6%N/A2 $270.47 11/15/2021749,400 shares $211.44 million +6.8%N/A1.8 $282.14 10/29/2021701,700 shares $201.23 million -0.7%N/A1.6 $286.77 10/15/2021706,700 shares $194.37 million -16.1%N/A1.3 $275.04 9/30/2021841,800 shares $220.57 million +11.5%N/A1.3 $262.02 9/15/2021754,700 shares $198.52 million -19.9%N/A0.8 $263.04 8/31/2021942,400 shares $241.04 million -15.1%N/A1 $255.77 8/13/20211,110,000 shares $265.36 million +12.1%N/A1.2 $239.06 7/30/2021990,400 shares $240.93 million -11.6%N/A1 $243.27 7/15/20211,120,000 shares $240.65 million -87.2%N/A1.3 $214.87 6/30/20218,720,000 shares $1.80 billion +23.5%16.7%10.2 $206.71 6/15/20217,060,000 shares $1.51 billion +9.8%13.5%11.9 $214.46 5/28/20216,430,000 shares $1.44 billion +2.9%12.3%10.5 $223.76 5/14/20216,250,000 shares $1.42 billion +10.0%12.0%8.2 $227.09 4/30/20215,680,000 shares $1.23 billion +13.2%10.9%7.9 $216.13 4/15/20215,020,000 shares $986.08 million +31.4%N/A0 $196.43 3/31/20213,820,000 shares $752.23 million +27.8%7.3%6.7 $196.92The #1 AI Energy Stock (Ad)Nearly $600 billion is projected to be spent on AI data centers this year. That's because the ones being built now will dwarf everything that came before them. Thanks to AI's ravenous hunger for power … They are beginning to morph into sprawling behemoths.Click here to learn more about the #1 AI Energy Stock of 2025 3/15/20212,990,000 shares $545.02 million +110.6%5.7%6.1 $182.28 2/26/20211,420,000 shares $261.90 million +120.8%2.7%3.5 $184.44 2/12/2021643,100 shares $136.06 million -4.1%1.2%2.4 $211.57 1/29/2021670,900 shares $138.34 million -26.9%1.3%3.3 $206.20 1/15/2021918,200 shares $193.43 million +33.6%1.8%4.6 $210.66 12/31/2020687,500 shares $133.14 million -1.3%1.3%3.4 $193.66 12/15/2020696,300 shares $132.86 million +1.1%1.3%3.2 $190.81 11/30/2020689,000 shares $131.70 million +10.1%1.3%3.3 $191.14 11/15/2020626,000 shares $119.49 million +1.0%1.2%3 $190.88 10/30/2020619,800 shares $113.59 million -19.1%1.2%3.1 $183.27 10/15/2020766,400 shares $159.10 million +16.8%1.5%3.9 $207.59 9/30/2020656,000 shares $125.36 million +19.1%1.3%3.2 $191.09 9/15/2020550,900 shares $103.78 million +2.4%1.1%2.8 $188.38 8/31/2020537,900 shares $100.27 million +2.7%1.0%2.7 $186.41 8/14/2020523,900 shares $98.45 million +3.2%1.0%2.4 $187.92 7/31/2020507,600 shares $94.14 million -13.4%1.0%2.2 $185.46 7/15/2020586,300 shares $105.18 million -1.0%1.1%2.3 $179.39 ICLR Short Interest - Frequently Asked Questions What is Icon's current short interest? Short interest is the volume of Icon shares that have been sold short but have not yet been closed out or covered. As of June 15th, traders have sold 1,730,000 shares of ICLR short. 2.16% of Icon's shares are currently sold short. Learn More on Icon's current short interest. What is a good short interest ratio for Icon? 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. ICLR shares currently have a short interest ratio of 1.0. Learn More on Icon's short interest ratio. Which institutional investors are shorting Icon? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Icon: Jane Street Group LLC, Millennium Management LLC, Cubist Systematic Strategies LLC, Jane Street Group LLC, Walleye Trading LLC, Walleye Capital 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 Icon? 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. 2.16% of Icon's floating shares are currently sold short. Is Icon's short interest increasing or decreasing? Icon saw a increase in short interest during the month of June. As of June 15th, there was short interest totaling 1,730,000 shares, an increase of 19.3% from the previous total of 1,450,000 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 Icon's float size? Icon currently has issued a total of 80,760,000 shares. Some of Icon's 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. Icon currently has a public float of 80,240,000 shares. How does Icon's short interest compare to its competitors? 2.16% of Icon's shares are currently sold short. Here is how the short interest of companies in the industry of "business services" compare to Icon: Trip.com Group Limited Sponsored ADR (2.07%), IQVIA Holdings Inc. (5.44%), Reddit Inc. (17.12%), CGI Group, Inc. (1.92%), Corpay, Inc. (2.47%), Toast, Inc. (6.65%), Aercap Holdings N.V. (1.44%), RB Global, Inc. (4.37%), Grab Holdings Limited (6.85%), GFL Environmental Inc. (3.60%), 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 ($69.26 billion), Invesco QQQ ($25.22 billion), iShares Russell 2000 ETF ($20.33 billion), iShares 20+ Year Treasury Bond ETF ($9.99 billion), MicroStrategy Incorporated ($9.12 billion), Canadian Natural Resources Limited ($6.73 billion), SPDR S&P Biotech ETF ($6.52 billion), Invesco S&P 500 Equal Weight ETF ($5.60 billion), Financial Select Sector SPDR Fund ($4.64 billion), and iShares iBoxx $ Investment Grade Corporate Bond ETF ($4.59 billion). View all of the most shorted stocks. What does it mean to sell short Icon stock? Short selling ICLR is an investing strategy that aims to generate trading profit from Icon as its price is falling. ICLR shares are trading up $0.89 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 Icon? A short squeeze for Icon 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 ICLR, which in turn drives the price of the stock up even further. How often is Icon'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 ICLR, twice per month. The most recent reporting period available is June, 15 2025. More Short Interest Resources from MarketBeat Related Companies Trip.com Group Short Interest IQVIA Short Interest Reddit Short Interest CGI Group Short Interest Corpay Short Interest Toast Short Interest Aercap Short Interest RB Global Short Interest Grab Short Interest GFL Environmental 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:ICLR) was last updated on 7/1/2025 by MarketBeat.com Staff From Our PartnersThis Crypto Is Set to Explode in JanuaryFree summit: How to profit from the Coinbase-Deribit deal Our hedge fund experts know exactly what this mea...Crypto 101 Media | SponsoredTrump set to Boost Social Security Checks by 400%?If you collect—or plan to collect—Social Security, you need to see this. A new initiative tied to President...InvestorPlace | SponsoredA grave, grave error.I thought what happened 25 years ago was a once- in-a-lifetime event… but how wrong I was. Because here we...Porter & Company | SponsoredGold prediction: $5,000/oz. or higher is comingThe perfect gold play right now? (currently under $10) Everything in the news now lines up perfectly for an...Stansberry Research | SponsoredThe Trump Dump is starting; Get out of stocks now?The first 365 days of the Trump presidency… Will be the best time to get rich in American history.Paradigm Press | SponsoredPost-Halving = Profit Season (Here’s How to Win It)It happens like clockwork. Every four years, the crypto market enters a new phase — and for those who know how...Crypto Swap Profits | SponsoredBuffett’s $325 Billion Cash Problem — Solved by Gold?A bombshell announcement is just weeks away — and it could send shockwaves through the gold market. Most inves...Golden Portfolio | SponsoredElon’s BIGGEST warning yet?Tesla's About to Prove Everyone Wrong... Again Back in 2018, when Jeff Brown told everyone to buy Tesla… ...Brownstone Research | Sponsored Adding Choose a watchlist: Watchlist Adding You have already added ten stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding Icon Plc Please log in to your account or sign up in order to add this asset to your watchlist. Share Icon With A Colleague Link copied to clipboard. Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. Start Your 30-Day Trial MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. Stay informed with MarketBeat's real-time news. Export data to Excel for personal analysis. Sign in to your free account to enjoy these benefits In-depth profiles and analysis for 20,000 public companies. Real-time analyst ratings, insider transactions, earnings data, and more. Our daily ratings and market update email newsletter. Sign in to your free account to enjoy all that MarketBeat has to offer. Sign In Create Account Your Email Address: Email Address Required Your Password: Password Required Log In or Sign in with Facebook Sign in with Google Forgot your password? Your Email Address: Please enter your email address. Please enter a valid email address Choose a Password: Please enter your password. Your password must be at least 8 characters long and contain at least 1 number, 1 letter, and 1 special character. Create My Account (Free) or Sign in with Facebook Sign in with Google By creating a free account, you agree to our terms of service. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.