iRhythm Technologies (IRTC) Short Interest Ratio & Short Volume $139.87 -1.34 (-0.95%) Closing price 04:00 PM EasternExtended Trading$139.00 -0.87 (-0.62%) As of 06:48 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 ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock iRhythm Technologies Short Interest DataiRhythm Technologies (IRTC) has a short interest of 2.99 million shares. This marks a -4.17% decrease in short interest from the previous month. The short interest ratio (days to cover) is 6.3, indicating that it would take 6.3 days of the average trading volume of 476,172 shares to cover all short positions.Current Short Interest2,990,000 sharesPrevious Short Interest3,120,000 sharesChange Vs. Previous Month-4.17%Dollar Volume Sold Short$319.60 millionShort Interest Ratio6.3 Days to CoverLast Record DateApril 30, 2025Outstanding Shares31,925,000 sharesPercentage of Shares Shorted9.37%Today's Trading Volume718,013 sharesAverage Trading Volume476,172 sharesToday's Volume Vs. Average151% Short Selling iRhythm Technologies? Sign up to receive the latest short interest report for iRhythm Technologies and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartIRTC Short Interest Over TimeIRTC Days to Cover Over TimeIRTC Percentage of Float Shorted Over Time iRhythm Technologies Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 4/30/20252,990,000 shares $319.60 million -4.2%N/A6.3 $106.89 4/15/20253,120,000 shares $314.34 million +6.5%10.0%7.5 $100.75 3/31/20252,930,000 shares $306.71 million +0.3%9.4%6.5 $104.68 3/15/20252,920,000 shares $293.96 million -1.0%9.4%6.9 $100.67 2/28/20252,950,000 shares $324.97 million +12.2%9.5%7 $110.16 2/15/20252,630,000 shares $294.85 million +8.7%8.5%6.4 $112.11 1/31/20252,420,000 shares $263.42 million +3.9%N/A6.3 $108.85 1/15/20252,330,000 shares $240.36 million +4.0%N/A4.8 $103.16 12/31/20242,240,000 shares $201.98 million +1.4%N/A4.6 $90.17 12/15/20242,210,000 shares $191.01 million +4.3%N/A4.2 $86.43 Get the Latest News and Ratings for IRTC and Related StocksEnter your email address below to receive the latest news and analysts' ratings for iRhythm Technologies and its competitors with MarketBeat's FREE daily newsletter. 11/30/20242,120,000 shares $184.36 million -12.0%N/A3.9 $86.96 11/15/20242,410,000 shares $193.88 million -12.0%N/A4.1 $80.45 10/31/20242,740,000 shares $198.49 million +8.7%N/A4.6 $72.44 10/15/20242,520,000 shares $151.53 million -1.6%N/A4.2 $60.13 9/30/20242,560,000 shares $190.05 million -4.8%N/A5.1 $74.24 9/15/20242,690,000 shares $206.08 million +8.5%N/A5.7 $76.61 8/31/20242,480,000 shares $175.78 million -3.5%N/A5.2 $70.88 8/15/20242,570,000 shares $171.21 million -14.1%N/A5.8 $66.62 7/31/20242,990,000 shares $257.89 million +3.1%N/A7.3 $86.25 7/15/20242,900,000 shares $285.94 million +0.7%N/A7.8 $98.60 6/30/20242,880,000 shares $310.00 million -1.7%N/A7.6 $107.64 6/15/20242,930,000 shares $276.39 million +2.1%N/A7 $94.33 5/31/20242,870,000 shares $253.16 million -6.2%N/A6.8 $88.21 5/15/20243,060,000 shares $307.81 million +2.7%N/A6.3 $100.59 4/30/20242,980,000 shares $326.55 million +6.1%N/A6.3 $109.58 4/15/20242,810,000 shares $307.64 million +10.2%N/A6.4 $109.48 3/31/20242,550,000 shares $295.80 million +3.2%N/A5.6 $116.00 3/15/20242,470,000 shares $252.16 million +37.2%N/A6.1 $102.09 2/29/20241,800,000 shares $213.57 million +44.0%N/A4.4 $118.65 2/15/20241,250,000 shares $147.05 million -2.3%N/A3.6 $117.64 1/31/20241,280,000 shares $153.32 million +11.3%N/A3.8 $119.78 1/15/20241,150,000 shares $126.55 million -19.0%N/A3.1 $110.04 12/31/20231,420,000 shares $152.00 million -24.1%N/A3.9 $107.04 12/15/20231,870,000 shares $188.89 million -0.5%N/A4.8 $101.01 11/30/20231,880,000 shares $160.33 million +1.6%N/A4.9 $85.28 11/15/20231,850,000 shares $150.96 million -18.5%N/A4.9 $81.60 10/31/20232,270,000 shares $178.24 million -9.9%N/A6.4 $78.52 10/15/20232,520,000 shares $210.42 million -2.3%N/A7 $83.50 9/30/20232,580,000 shares $243.19 million +10.3%N/A7.1 $94.26 9/15/20232,340,000 shares $211.84 million +0.4%N/A6.9 $90.53Gold Hits New Highs as Global Markets Spiral (Ad)When Trump took office in 2017, gold was just $1,100 an ounce. 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You've hopefully already seen this in action… but gold is surpassing $3,000 per ounce for the first time EVER.Go Here to Learn What's Happening and How to Prepare >> 8/31/20232,330,000 shares $240.85 million -0.4%N/A6.6 $103.37 8/15/20232,340,000 shares $267.09 million +5.9%N/A5.8 $114.14 7/31/20232,210,000 shares $232.18 million -13.0%N/A5.5 $105.06 7/15/20232,540,000 shares $255.37 million No ChangeN/A6.7 $100.54 6/30/20232,540,000 shares $264.97 million +7.2%N/A6.9 $104.32 6/15/20232,370,000 shares $245.82 million +4.9%N/A6.5 $103.72 5/31/20232,260,000 shares $258.25 million +0.4%N/A6.2 $114.27 5/15/20232,250,000 shares $294.64 million +1.4%N/A6.7 $130.95 4/30/20232,220,000 shares $291.71 million -2.6%N/A6.4 $131.40 4/15/20232,280,000 shares $298.16 million +6.1%N/A6.8 $130.77 3/31/20232,150,000 shares $266.66 million -5.7%N/A6.2 $124.03 3/15/20232,280,000 shares $251.51 million +7.0%N/A6.7 $110.31 2/28/20232,130,000 shares $250.66 million +6.0%N/A6.5 $117.68 2/15/20232,010,000 shares $221.92 million +26.4%N/A6.5 $110.41 1/31/20231,590,000 shares $156.30 million -4.2%N/A4.9 $98.30 1/15/20231,660,000 shares $168.97 million +6.4%N/A4.4 $101.79 12/30/20221,560,000 shares $146.13 million +11.4%N/A4.2 $93.67 12/15/20221,400,000 shares $133.78 million +8.5%N/A3.6 $95.56 11/30/20221,290,000 shares $140.67 million -3.7%N/A3 $109.05 11/15/20221,340,000 shares $145.12 million -0.7%N/A3.2 $108.30 10/31/20221,350,000 shares $172.11 million No ChangeN/A3.4 $127.49 10/15/20221,350,000 shares $157.22 million -3.6%N/A3.7 $116.46 9/30/20221,400,000 shares $175.39 million -10.3%N/A3.7 $125.28 9/15/20221,560,000 shares $241.35 million -7.1%N/A3.8 $154.71 8/31/20221,680,000 shares $247.72 million -12.5%N/A4.1 $147.45 8/15/20221,920,000 shares $293.07 million -1.0%N/A4.8 $152.64 7/31/20221,940,000 shares $299.98 million +4.9%6.6%4.4 $154.63 7/15/20221,850,000 shares $266.07 million +13.5%6.3%4.3 $143.82 6/30/20221,630,000 shares $176.09 million No Change5.6%4 $108.03 6/15/20221,630,000 shares $187.87 million +10.9%5.6%4.4 $115.26 5/31/20221,470,000 shares $207.05 million -13.5%5.0%4 $140.85 5/15/20221,700,000 shares $236.37 million +8.3%N/A4.5 $139.04 4/30/20221,570,000 shares $193.69 million +3.3%5.4%4.5 $123.37 4/15/20221,520,000 shares $219.66 million +7.8%5.2%4.6 $144.51 3/31/20221,410,000 shares $222.03 million +15.6%N/A3.5 $157.47 3/15/20221,220,000 shares $138.92 million +8.9%4.3%3.1 $113.87 2/28/20221,120,000 shares $144.78 million -8.9%3.9%2.9 $129.27 2/15/20221,230,000 shares $158.68 million +7.9%4.3%3 $129.01 1/31/20221,140,000 shares $142.31 million -7.3%4.0%2.8 $124.83 1/15/20221,230,000 shares $173.55 million +35.1%N/A2.3 $141.10 12/31/2021910,200 shares $107.12 million -7.2%3.2%1.8 $117.69 12/15/2021980,800 shares $93.61 million +21.3%3.4%2.1 $95.44 11/30/2021808,300 shares $85.36 million -38.8%2.8%1.5 $105.60 11/15/20211,320,000 shares $139.80 million +10.9%4.6%2.5 $105.91 10/29/20211,190,000 shares $83.47 million -1.7%4.1%2.3 $70.14 10/15/20211,210,000 shares $87.47 million +17.5%4.2%3 $72.29 9/30/20211,030,000 shares $60.32 million -37.6%3.6%2.4 $58.56 9/15/20211,650,000 shares $102.45 million -3.5%5.7%3.7 $62.09 8/31/20211,710,000 shares $81.74 million +5.6%5.9%4.3 $47.80 8/13/20211,620,000 shares $73.86 million -16.1%5.6%3.2 $45.59White House to reset Social Security? 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And it could have a major impact on how you collect Social Security - Click here to understand what' 7/30/20211,930,000 shares $98.66 million -10.2%6.7%3.5 $51.12 7/15/20212,150,000 shares $115.18 million -2.7%7.5%3.5 $53.57 6/30/20212,210,000 shares $146.63 million +22.1%7.7%2.8 $66.35 6/15/20211,810,000 shares $114.37 million -20.3%6.3%2.4 $63.19 5/28/20212,270,000 shares $171.29 million +0.9%7.9%3 $75.46 5/14/20212,250,000 shares $173.79 million -5.9%N/A3.2 $77.24 4/30/20212,390,000 shares $183.81 million +3.0%N/A3.5 $76.91 4/15/20212,320,000 shares $210.80 million -17.4%N/A2.9 $90.86 3/31/20212,810,000 shares $386.01 million No ChangeN/A4 $137.37 3/15/20212,810,000 shares $396.55 million -14.6%N/A4.7 $141.12 2/26/20213,290,000 shares $486.03 million -4.9%N/A5.3 $147.73 2/12/20213,460,000 shares $607.78 million -0.6%N/A5.8 $175.66 1/29/20213,480,000 shares $873.48 million -14.3%N/A5.9 $251.00 1/15/20214,060,000 shares $1.00 billion -1.5%N/A9.9 $247.10 12/31/20204,120,000 shares $969.85 million +5.1%N/A10.4 $235.40 12/15/20203,920,000 shares $737.00 million +13.3%N/A10.4 $188.01 11/30/20203,460,000 shares $809.16 million +3.0%N/A9.9 $233.86 11/15/20203,360,000 shares $877.53 million -0.6%N/A11.5 $261.17 10/30/20203,380,000 shares $751.85 million +12.3%N/A10.9 $222.44 10/15/20203,010,000 shares $735.01 million +3.8%N/A7.8 $244.19 9/30/20202,900,000 shares $690.52 million +2.5%N/A7.5 $238.11 9/15/20202,830,000 shares $640.37 million -1.7%N/A7 $226.28 8/31/20202,880,000 shares $634.12 million -5.3%N/A6.9 $220.18 8/14/20203,040,000 shares $525.77 million -20.0%N/A7.2 $172.95 7/31/20203,800,000 shares $473.02 million -6.4%N/A9 $124.48 7/15/20204,060,000 shares $468.52 million +3.8%N/A11.2 $115.40 6/30/20203,910,000 shares $449.53 million +3.4%N/A10.5 $114.97 6/15/20203,780,000 shares $443.09 million +4.4%N/A10.1 $117.22 5/29/20203,620,000 shares $448.52 million -2.7%N/A9 $123.90 IRTC Short Interest - Frequently Asked Questions What is iRhythm Technologies' current short interest? Short interest is the volume of iRhythm Technologies shares that have been sold short but have not yet been covered or closed out. As of April 30th, traders have sold 2,990,000 shares of IRTC short. Learn More on iRhythm Technologies' current short interest. What is a good short interest ratio for iRhythm Technologies? 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. IRTC shares currently have a short interest ratio of 6.0. Learn More on iRhythm Technologies's short interest ratio. Which institutional investors are shorting iRhythm Technologies? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of iRhythm Technologies: Jane Street Group LLC, Walleye Trading LLC, Walleye Capital LLC, and Wolverine Asset Management LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. Is iRhythm Technologies' short interest increasing or decreasing? iRhythm Technologies saw a drop in short interest during the month of April. As of April 30th, there was short interest totaling 2,990,000 shares, a drop of 4.2% from the previous total of 3,120,000 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. How does iRhythm Technologies' short interest compare to its competitors? Here is how the short interest of companies in the industry of "medical equipment" compare to iRhythm Technologies: Solventum Co. (2.98%), Smith & Nephew plc (0.35%), Penumbra, Inc. (3.98%), Stevanato Group S.p.A. (6.33%), Glaukos Co. (5.90%), Inari Medical, Inc. (4.24%), Inspire Medical Systems, Inc. (9.73%), Bausch + Lomb Co. (5.09%), TransMedics Group, Inc. (26.02%), Soleno Therapeutics, Inc. (10.40%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Spotify Technology S.A. ($4.67 billion), Charter Communications, Inc. ($4.58 billion), Capital One Financial Co. ($4.47 billion), The Kroger Co. ($2.56 billion), Reddit, Inc. ($2.23 billion), Rivian Automotive, Inc. ($2.16 billion), Live Nation Entertainment, Inc. ($1.90 billion), SoFi Technologies, Inc. ($1.85 billion), Zscaler, Inc. ($1.75 billion), and Omnicom Group Inc. ($1.75 billion). View all of the most shorted stocks. What does it mean to sell short iRhythm Technologies stock? Short selling IRTC is an investing strategy that aims to generate trading profit from iRhythm Technologies as its price is falling. IRTC shares are trading down $1.34 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 iRhythm Technologies? A short squeeze for iRhythm Technologies 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 IRTC, which in turn drives the price of the stock up even further. How often is iRhythm Technologies' 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 IRTC, twice per month. The most recent reporting period available is April, 30 2025. More Short Interest Resources from MarketBeat Related Companies SOLV Short Squeeze SNN Short Squeeze PEN Short Squeeze STVN Short Squeeze GKOS Short Squeeze NARI Short Squeeze INSP Short Squeeze BLCO Short Squeeze TMDX Short Squeeze SLNO 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:IRTC) was last updated on 5/21/2025 by MarketBeat.com Staff From Our PartnersMarket Panic: Trump Just Dropped a Bomb on Your Stockstock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tarif...American Alternative | SponsoredGold Hits New Highs as Global Markets SpiralWhen Trump took office in 2017, gold was just $1,100 an ounce. By the time he left, it had soared to $1,839. ...Premier Gold Co | SponsoredWhite House to reset Social Security?Elon Musk's parting DOGE gift looks set to shock America... 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