This company has been marked as potentially delisted and may not be actively trading. Atrion (ATRI) Short Interest Ratio & Short Volume Add Compare Share Share Short Interest Stock AnalysisBuy This Stock Atrion Short Interest DataAtrion (ATRI) has a short interest of 44,500 shares, representing 3.25% of the float (the number of shares available for trading by the public). This marks a 0.00% change in short interest from the previous month. The short interest ratio (days to cover) is 1.5, indicating that it would take 1.5 days of the average trading volume of 23,283 shares to cover all short positions.Current Short Interest44,500 sharesPrevious Short Interest44,500 sharesChange Vs. Previous MonthNo ChangeDollar Volume Sold Short$20.39 millionShort Interest Ratio1.5 Days to CoverLast Record DateJuly 31, 2024Outstanding Shares1,760,000 sharesFloat Size1,370,000 sharesShort Percent of Float3.25%Today's Trading Volume0 sharesAverage Trading Volume23,283 sharesToday's Volume Vs. Average0% Short Selling Atrion? Sign up to receive the latest short interest report for Atrion and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartATRI Short Interest Over TimeATRI Days to Cover Over TimeATRI Percentage of Float Shorted Over Time Atrion Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 7/31/202444,500 shares $20.39 million No Change3.3%1.5 $458.30 7/15/202444,500 shares $20.29 million -26.0%3.3%1.4 $456.06 6/30/202460,100 shares $27.19 million -20.2%4.4%1.9 $452.43 6/15/202475,300 shares $33.97 million -30.5%7.8%2.4 $451.10 5/31/2024108,300 shares $49.85 million -16.2%11.2%3.4 $460.25 5/15/2024129,200 shares $64.08 million +7.2%9.5%4.7 $495.99 4/30/2024120,500 shares $51.01 million +0.8%8.9%5.3 $423.29 4/15/2024119,500 shares $47.64 million +22.3%8.7%6.4 $398.68 3/31/202497,700 shares $45.29 million +4.7%7.1%6.5 $463.55 3/15/202493,300 shares $40.69 million +40.9%6.8%7.3 $436.10 Get the Latest News and Ratings for ATRI and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Atrion and its competitors with MarketBeat's FREE daily newsletter. 2/29/202466,200 shares $24.36 million +3.3%4.8%6.2 $367.99 2/15/202464,100 shares $22.68 million -3.6%4.7%6.9 $353.80 1/31/202466,500 shares $22.61 million +14.7%4.9%7 $340.00 1/15/202458,000 shares $20.36 million +3.2%4.2%6.2 $350.99 12/31/202356,200 shares $21.29 million +43.7%4.1%6.3 $378.79 12/15/202339,100 shares $14.22 million -0.3%2.9%5 $363.66 11/30/202339,200 shares $12.09 million +1.6%2.9%6.4 $308.35 11/15/202338,600 shares $11.17 million -3.7%2.8%7.3 $289.29 10/31/202340,100 shares $13.71 million -8.5%3.0%8.7 $341.98 10/15/202343,800 shares $17.49 million +6.6%3.3%10.7 $399.30 9/30/202341,100 shares $16.98 million +0.7%3.1%11.7 $413.17 9/15/202340,800 shares $18.77 million -1.5%3.0%12.4 $460.00 8/31/202341,400 shares $19.26 million -3.5%3.1%12.2 $465.10 8/15/202342,900 shares $21.71 million -0.9%3.2%11.6 $506.02 7/31/202343,300 shares $24.27 million +4.6%3.2%11.1 $560.61 7/15/202341,400 shares $22.77 million +1.7%3.1%10.6 $549.90 6/30/202340,700 shares $23.02 million -1.9%3.0%10.4 $565.70 6/15/202341,500 shares $22.00 million +28.1%3.1%10.4 $530.20 5/31/202332,400 shares $16.86 million -5.3%2.4%8.8 $520.36 5/15/202334,200 shares $19.36 million -3.7%2.6%9 $566.11 4/30/202335,500 shares $21.84 million -8.3%2.7%9.3 $615.30 4/15/202338,700 shares $24.95 million -2.0%2.9%9.9 $644.78 3/31/202339,500 shares $24.80 million -7.9%3.0%9.9 $627.91 3/15/202342,900 shares $25.48 million +4.4%3.2%10.5 $594.01 2/28/202341,100 shares $23.34 million +2.8%3.0%8.9 $568.00 2/15/202340,000 shares $27.24 million +2.6%3.0%8.3 $681.10 1/31/202339,000 shares $26.80 million +7.1%2.9%7.2 $687.30 1/15/202336,400 shares $23.01 million -4.2%2.7%6.3 $632.22 12/30/202238,000 shares $21.26 million -11.6%2.8%6.4 $559.45 12/15/202243,000 shares $25.37 million +0.2%3.2%6.8 $590.00Presidential Bombshell: $150T Resource to Be Released as soon as this Summer? (Ad)Something extraordinary is happening in Washington. For the first time in over a century, a sitting President could release a national treasure that's been tied up in red tape, for generations. I'm talking about a $150 trillion American asset that's scattered across all 50 states. While the mainstream media focuses on political theater, this story is quietly developing behind closed doors.We recently interviewed Rickards to get the full story and understand how everyday Americans can pre 11/30/202242,900 shares $25.95 million -12.1%3.2%7.2 $604.80 11/15/202248,800 shares $30.30 million -4.3%3.6%8.6 $620.93 10/31/202251,000 shares $30.62 million -5.9%3.8%10.4 $600.31 10/15/202254,200 shares $32.18 million +6.3%4.0%13.2 $593.80 9/30/202251,000 shares $28.82 million -16.9%3.8%13.4 $565.00 9/15/202261,400 shares $36.99 million -3.6%4.5%18.6 $602.51 8/31/202263,700 shares $38.47 million -0.2%4.7%18.7 $603.95 8/15/202263,800 shares $41.79 million -1.9%4.7%18.2 $655.00 7/31/202265,000 shares $43.93 million +0.5%4.7%17.1 $675.90 7/15/202264,700 shares $41.90 million -1.5%4.7%16.6 $647.60 6/30/202265,700 shares $41.32 million -6.3%4.8%15.6 $628.86 6/15/202270,100 shares $44.79 million +4.5%4.9%17.5 $638.97 5/31/202267,100 shares $42.19 million -0.5%4.9%16.8 $628.79 5/15/202267,400 shares $41.38 million +1.1%4.9%17.3 $614.00 4/30/202266,700 shares $41.80 million +0.5%4.9%15.9 $626.62 4/15/202266,400 shares $48.66 million -3.1%4.9%14.4 $732.88 3/31/202268,500 shares $48.84 million -4.5%5.0%15.2 $713.00 3/15/202271,700 shares $52.91 million +2.6%5.2%14.9 $738.00 2/28/202269,900 shares $50.01 million +3.4%5.1%14 $715.46 2/15/202267,600 shares $44.53 million +6.3%4.9%13.5 $658.69 1/31/202263,600 shares $38.50 million -2.3%4.6%13.3 $605.41 1/15/202265,100 shares $45.08 million -0.5%4.7%14.8 $692.49 12/31/202165,400 shares $46.10 million -3.0%4.7%15.2 $704.90 12/15/202167,400 shares $45.79 million +1.4%4.9%14.7 $679.32 11/30/202166,500 shares $47.21 million -2.8%4.8%13 $709.99 11/15/202168,400 shares $53.50 million +1.9%5.0%12 $782.12 10/29/202167,100 shares $48.85 million -1.2%4.9%10.8 $728.00 10/15/202167,900 shares $45.82 million +0.9%4.9%10.8 $674.81 9/30/202167,300 shares $46.94 million -10.6%4.9%10.4 $697.50 9/15/202175,300 shares $55.66 million +3.2%5.5%11.2 $739.12 8/31/202173,000 shares $50.67 million +12.1%5.3%11.4 $694.06 8/13/202165,100 shares $40.83 million +2.0%4.7%10 $627.20 7/30/202163,800 shares $40.13 million +0.6%4.6%10 $628.94 7/15/202163,400 shares $38.65 million +1.0%4.5%9.6 $609.70 6/30/202162,800 shares $38.99 million -9.3%4.5%9.7 $620.93 6/15/202169,200 shares $43.40 million +1.5%4.9%11 $627.11 5/28/202168,200 shares $42.35 million +4.0%4.9%10 $621.00 5/14/202165,600 shares $39.62 million +2.7%4.6%8 $603.90 4/30/202163,900 shares $41.33 million -2.0%4.5%8.2 $646.80 4/15/202165,200 shares $42.09 million -0.6%N/A0 $645.51 3/31/202165,600 shares $42.35 million -4.0%4.7%8 $645.53 3/15/202168,300 shares $46.79 million +1.3%4.9%7.4 $685.00 2/26/202167,400 shares $43.14 million -1.0%4.8%8.5 $640.00 2/12/202168,100 shares $46.88 million -1.3%4.8%9.2 $688.40 1/29/202169,000 shares $45.70 million +1.3%4.9%9.3 $662.29 1/15/202168,100 shares $48.25 million +8.6%4.8%9.3 $708.55 12/31/202062,700 shares $40.16 million +19.2%4.5%7.8 $640.50 12/15/202052,600 shares $32.78 million -0.2%3.8%6.3 $623.11 11/30/202052,700 shares $31.33 million +1.5%3.8%6.9 $594.41 11/15/202051,900 shares $30.84 million -1.3%3.7%7.5 $594.30Presidential Bombshell: $150T Resource to Be Released as soon as this Summer? (Ad)Something extraordinary is happening in Washington. For the first time in over a century, a sitting President could release a national treasure that's been tied up in red tape, for generations. I'm talking about a $150 trillion American asset that's scattered across all 50 states. While the mainstream media focuses on political theater, this story is quietly developing behind closed doors.We recently interviewed Rickards to get the full story and understand how everyday Americans can pre 10/30/202052,600 shares $32.19 million +1.0%3.8%7.9 $612.00 10/15/202052,100 shares $33.69 million -8.9%3.7%7.3 $646.57 9/30/202057,200 shares $35.81 million -11.0%4.1%9.7 $626.00 9/15/202064,300 shares $40.57 million -4.2%4.6%11.9 $631.01 8/31/202067,100 shares $42.39 million -0.9%4.8%12.9 $631.72 8/14/202067,700 shares $44.02 million -9.9%4.8%12.8 $650.23 7/31/202075,100 shares $46.57 million -3.8%5.4%13.2 $620.10 7/15/202078,100 shares $50.45 million -2.7%5.5%13.7 $646.00 ATRI Short Interest - Frequently Asked Questions What is Atrion's current short interest? Short interest is the volume of Atrion shares that have been sold short but have not yet been closed out or covered. As of July 31st, investors have sold 44,500 shares of ATRI short. 3.25% of Atrion's shares are currently sold short. Learn More on Atrion's current short interest. What is a good short interest ratio for Atrion? 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. ATRI shares currently have a short interest ratio of 2.0. Learn More on Atrion's short interest ratio. What is a good short interest percentage for Atrion? 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. 3.25% of Atrion's floating shares are currently sold short. What is Atrion's float size? Atrion currently has issued a total of 1,760,000 shares. Some of Atrion'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. Atrion currently has a public float of 1,370,000 shares. How does Atrion's short interest compare to its competitors? 3.25% of Atrion's shares are currently sold short. Here is how the short interest of companies in the sector of "medical" compare to Atrion: QuidelOrtho Corporation (8.75%), Neogen Corporation (9.86%), STAAR Surgical Company (12.44%), Cerus Corporation (4.41%), OraSure Technologies, Inc. (4.38%), Utah Medical Products, Inc. (12.61%), Anika Therapeutics Inc. (3.08%), West Pharmaceutical Services, Inc. (1.06%), The Cooper Companies, Inc. (3.09%), Align Technology, Inc. (4.14%), 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. ($4.45 billion), Moderna, Inc. ($2.69 billion), Royal Caribbean Cruises Ltd. ($2.55 billion), Paychex, Inc. ($2.13 billion), Rivian Automotive, Inc. ($1.96 billion), ON Semiconductor Corporation ($1.94 billion), Tractor Supply Company ($1.84 billion), Enphase Energy, Inc. ($1.77 billion), Chesapeake Energy Co. ($1.69 billion), and International Paper Company ($1.54 billion). View all of the most shorted stocks. What does it mean to sell short Atrion stock? Short selling ATRI is an investing strategy that aims to generate trading profit from Atrion as its price is falling. 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 Atrion? A short squeeze for Atrion 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 ATRI, which in turn drives the price of the stock up even further. How often is Atrion'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 ATRI, twice per month. The most recent reporting period available is July, 31 2024. More Short Interest Resources from MarketBeat Related Companies QuidelOrtho Short Squeeze Neogen Short Squeeze STAAR Surgical Short Squeeze Cerus Short Squeeze OraSure Technologies Short Squeeze Utah Medical Products Short Squeeze Anika Therapeutics Short Squeeze West Pharmaceutical Services Short Squeeze Cooper Companies Short Squeeze Align Technology 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:ATRI) was last updated on 7/15/2025 by MarketBeat.com Staff From Our PartnersINVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting OffRight now, we’re witnessing a monumental shift in the world.Traders Agency | SponsoredThis Signal Only Flashes Once Every 4 Years – And It Just TriggeredThis same signal has appeared twice before in the past 8 years — both times, it kicked off major moves in cryp...Crypto Swap Profits | SponsoredMarket 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 | SponsoredPresidential Bombshell: $150T Resource to Be Released as soon as this Summer?Something extraordinary is happening in Washington. 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