Merit Medical Systems (MMSI) Short Interest Ratio & Short Volume $103.16 -2.50 (-2.37%) Closing price 02/21/2025 04:00 PM EasternExtended Trading$103.17 +0.01 (+0.01%) As of 02/21/2025 05:02 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 InterestSustainabilityTrends Merit Medical Systems Short Interest DataMerit Medical Systems (MMSI) has a short interest of 2.94 million shares. This marks a 10.53% increase 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 502,260 shares to cover all short positions.Current Short Interest2,940,000 sharesPrevious Short Interest2,660,000 sharesChange Vs. Previous Month+10.53%Dollar Volume Sold Short$320.11 millionShort Interest Ratio6.3 Days to CoverLast Record DateJanuary 31, 2025Outstanding Shares58,280,000 sharesPercentage of Shares Shorted5.04%Today's Trading Volume472,347 sharesAverage Trading Volume502,260 sharesToday's Volume Vs. Average94% Short Selling Merit Medical Systems? Sign up to receive the latest short interest report for Merit Medical Systems and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartMMSI Short Interest Over TimeMMSI Days to Cover Over TimeMMSI Percentage of Float Shorted Over Time Merit Medical Systems Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 1/31/20252,940,000 shares $320.11 million +10.5%N/A6.3 $108.88 1/15/20252,660,000 shares $270.07 million +10.8%N/A5.9 $101.53 12/31/20242,400,000 shares $232.13 million -6.6%N/A5.7 $96.72 12/15/20242,570,000 shares $264.09 million +0.4%N/A6.4 $102.76 11/30/20242,560,000 shares $265.98 million -0.4%N/A6.4 $103.90 11/15/20242,570,000 shares $261.70 million -4.5%N/A6.1 $101.83 10/31/20242,690,000 shares $265.40 million +16.5%N/A6.4 $98.66 10/15/20242,310,000 shares $221.00 million -10.1%N/A5.5 $95.67 9/30/20242,570,000 shares $253.99 million +0.8%N/A5.9 $98.83 9/15/20242,550,000 shares $245.21 million -8.3%N/A5.5 $96.16 Get the Latest News and Ratings for MMSI and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Merit Medical Systems and its competitors with MarketBeat's FREE daily newsletter. 8/31/20242,780,000 shares $268.77 million +3.0%N/A6.2 $96.68 8/15/20242,700,000 shares $244.51 million -2.9%N/A6.6 $90.56 7/31/20242,780,000 shares $237.11 million -6.4%N/A6.9 $85.29 7/15/20242,970,000 shares $254.38 million -0.3%N/A7.8 $85.65 6/30/20242,980,000 shares $256.13 million +12.5%N/A8.1 $85.95 6/15/20242,650,000 shares $216.77 million +5.6%N/A7.8 $81.80 5/31/20242,510,000 shares $203.69 million +7.7%N/A7 $81.15 5/15/20242,330,000 shares $195.14 million +3.1%N/A6 $83.75 4/30/20242,260,000 shares $167.47 million +9.7%N/A5.7 $74.10 4/15/20242,060,000 shares $148.24 million +4.0%N/A5 $71.96 3/31/20241,980,000 shares $149.99 million -12.4%N/A4.1 $75.75 3/15/20242,260,000 shares $162.40 million -4.6%N/A4.2 $71.86 2/29/20242,370,000 shares $180.59 million +6.3%N/A3.8 $76.20 2/15/20242,230,000 shares $177.44 million No ChangeN/A3.6 $79.57 1/31/20242,230,000 shares $174.61 million -0.5%N/A3.8 $78.30 1/15/20242,240,000 shares $176.96 million +5.7%N/A3.9 $79.00 12/31/20232,120,000 shares $161.04 million +9.8%N/A4.1 $75.96 12/15/20231,930,000 shares $138.11 million +115.1%N/A4.4 $71.56 11/30/2023897,400 shares $64.22 million -0.9%N/A2.2 $71.56 11/15/2023905,500 shares $65.32 million +13.6%N/A2.9 $72.14 10/31/2023796,800 shares $54.77 million -8.8%N/A2.4 $68.74 10/15/2023874,000 shares $56.49 million -5.2%N/A2.5 $64.63 9/30/2023921,800 shares $63.62 million -9.6%N/A2.6 $69.02 9/15/20231,020,000 shares $69.52 million -1.9%N/A3 $68.16 8/31/20231,040,000 shares $67.89 million +6.9%N/A3 $65.28 8/15/2023972,800 shares $66.53 million +46.5%N/A3 $68.39 7/31/2023664,100 shares $49.59 million +2.3%N/A2.2 $74.67 7/15/2023648,900 shares $54.98 million +5.3%N/A2.3 $84.73 6/30/2023616,500 shares $51.56 million -16.4%N/A2.2 $83.64 6/15/2023737,200 shares $60.59 million +4.1%N/A2.8 $82.19Watch This Robotics Demo Before March 17th (Ad)Jeff Brown, the tech legend who picked shares of Nvidia in 2016 before they jumped by more than 22,000%... Just did a demo of what Nvidia’s CEO said will be "the first multitrillion-dollar robotics industry." Click here to watch the demo… 5/31/2023708,300 shares $58.36 million -8.4%N/A2.8 $82.40 5/15/2023773,100 shares $65.05 million -6.3%N/A2.8 $84.14 4/30/2023825,400 shares $67.10 million +26.9%N/A3 $81.29 4/15/2023650,700 shares $50.41 million +9.7%N/A2.4 $77.47 3/31/2023593,400 shares $43.88 million -14.6%N/A2.2 $73.95 3/15/2023694,900 shares $47.27 million +6.6%N/A2.6 $68.03 2/28/2023652,100 shares $46.03 million +6.7%1.2%2.5 $70.58 2/15/2023610,900 shares $42.84 million +0.7%1.1%2.4 $70.12 1/31/2023606,500 shares $43.27 million -5.2%1.1%2.4 $71.35 1/15/2023639,600 shares $45.00 million +0.4%1.2%2.3 $70.35 12/30/2022637,300 shares $45.01 million +9.8%1.2%2.3 $70.62 12/15/2022580,200 shares $41.33 million +5.6%1.0%2 $71.23 11/30/2022549,200 shares $39.54 million -34.2%1.0%1.8 $72.00 11/15/2022834,700 shares $58.33 million -29.9%1.5%2.7 $69.88 10/31/20221,190,000 shares $81.84 million -4.8%2.1%3.7 $68.77 10/15/20221,250,000 shares $68.40 million -3.9%2.3%3.6 $54.72 9/30/20221,300,000 shares $73.46 million +34.8%2.3%3.7 $56.51 9/15/2022964,500 shares $57.25 million -9.9%1.7%2.7 $59.36 8/31/20221,070,000 shares $63.38 million +12.6%1.9%3.1 $59.23 8/15/2022950,700 shares $60.45 million -4.9%1.7%2.8 $63.58 7/31/20221,000,000 shares $57.48 million -4.8%1.9%2.9 $57.48 7/15/20221,050,000 shares $55.93 million -9.5%2.0%3.1 $53.27 6/30/20221,160,000 shares $62.95 million -0.9%2.2%3.2 $54.27 6/15/20221,170,000 shares $62.49 million +1.7%2.2%3.1 $53.41 5/31/20221,150,000 shares $70.60 million -29.9%2.1%2.9 $61.39 5/15/20221,640,000 shares $96.51 million +43.9%3.0%3.8 $58.85 4/30/20221,140,000 shares $70.69 million +7.6%2.1%2.7 $62.01 4/15/20221,060,000 shares $72.97 million +8.9%1.9%2.7 $68.84 3/31/2022973,700 shares $64.77 million -4.5%1.8%2.7 $66.52 3/15/20221,020,000 shares $64.15 million -25.6%1.8%3 $62.89 2/28/20221,370,000 shares $89.09 million +33.0%2.5%3.9 $65.03 2/15/20221,030,000 shares $60.36 million +11.9%1.9%3.2 $58.60 1/31/2022920,800 shares $51.06 million +4.9%1.7%3.3 $55.45 1/15/2022878,200 shares $50.77 million -12.2%1.6%3 $57.81 12/31/20211,000,000 shares $62.30 million -11.5%1.8%3.2 $62.30 12/15/20211,130,000 shares $70.16 million -2.6%2.1%3.9 $62.09 11/30/20211,160,000 shares $72.92 million -1.7%2.1%4.3 $62.86 11/15/20211,180,000 shares $80.24 million -0.8%2.1%4.7 $68.00 10/29/20211,190,000 shares $80.04 million -24.2%2.2%4.7 $67.26 10/15/20211,570,000 shares $109.26 million -3.1%2.9%6.2 $69.59 9/30/20211,620,000 shares $116.32 million -0.6%2.9%7.1 $71.80 9/15/20211,630,000 shares $118.00 million No Change3.0%6.5 $72.39 8/31/20211,630,000 shares $116.99 million -3.6%3.0%6.6 $71.77 8/13/20211,690,000 shares $111.54 million -6.6%3.1%6.7 $66.00 7/30/20211,810,000 shares $126.86 million +5.9%3.3%6.9 $70.09 7/15/20211,710,000 shares $102.55 million -3.9%3.1%6.8 $59.97 6/30/20211,780,000 shares $115.09 million -11.9%3.3%7.1 $64.66 6/15/20212,020,000 shares $125.22 million -1.5%3.7%8 $61.99 5/28/20212,050,000 shares $123.70 million -0.5%3.7%7.8 $60.34 5/14/20212,060,000 shares $122.94 million +0.5%3.8%7.4 $59.68Watch This Robotics Demo Before March 17th (Ad)Jeff Brown, the tech legend who picked shares of Nvidia in 2016 before they jumped by more than 22,000%... Just did a demo of what Nvidia’s CEO said will be "the first multitrillion-dollar robotics industry." Click here to watch the demo… 4/30/20212,050,000 shares $129.79 million -10.1%3.8%7.4 $63.31 4/15/20212,280,000 shares $139.99 million -3.8%4.2%8.2 $61.40 3/31/20212,370,000 shares $141.16 million -8.9%4.4%8.3 $59.56 3/15/20212,600,000 shares $154.93 million -3.7%4.8%8.7 $59.59 2/26/20212,700,000 shares $148.10 million -6.6%5.0%8.7 $54.85 2/12/20212,890,000 shares $176.26 million -4.0%5.4%9.1 $60.99 1/29/20213,010,000 shares $166.48 million -4.1%5.6%9 $55.31 1/15/20213,140,000 shares $176.97 million -4.3%5.8%8.5 $56.36 12/31/20203,280,000 shares $179.61 million No Change6.1%8.7 $54.76 12/15/20203,280,000 shares $176.60 million -13.2%6.1%8.4 $53.84 11/30/20203,780,000 shares $207.14 million +0.8%7.0%8.9 $54.80 11/15/20203,750,000 shares $192.26 million -4.8%7.0%9.3 $51.27 10/30/20203,940,000 shares $203.26 million +10.1%7.3%9.8 $51.59 10/15/20203,580,000 shares $170.37 million +1.1%6.7%9.2 $47.59 9/30/20203,540,000 shares $153.99 million -10.4%6.6%8.8 $43.50 9/15/20203,950,000 shares $171.94 million +4.5%7.4%9.5 $43.53 8/31/20203,780,000 shares $185.60 million +0.8%7.0%10.2 $49.10 8/14/20203,750,000 shares $174.71 million +5.3%7.0%9.4 $46.59 7/31/20203,560,000 shares $159.20 million -13.4%6.6%8.7 $44.72 7/15/20204,110,000 shares $177.92 million -10.1%7.7%9.5 $43.29 6/30/20204,570,000 shares $200.71 million +2.5%8.5%10.3 $43.92 6/15/20204,460,000 shares $186.83 million -4.7%8.3%9.4 $41.89 5/29/20204,680,000 shares $203.86 million -4.5%8.7%8.3 $43.56 5/15/20204,900,000 shares $194.14 million No Change9.1%8.5 $39.62 4/30/20204,900,000 shares $200.02 million -11.1%9.2%8.4 $40.82 4/15/20205,510,000 shares $191.47 million -1.1%10.3%9.3 $34.75 3/31/20205,570,000 shares $223.97 million +0.2%10.4%8.2 $40.21 3/13/20205,556,400 shares $191.97 million -2.9%10.4%9.9 $34.55 2/28/20205,720,000 shares $160.05 million +0.4%10.7%7.7 $27.98 MMSI Short Interest - Frequently Asked Questions What is Merit Medical Systems' current short interest? Short interest is the volume of Merit Medical Systems shares that have been sold short but have not yet been covered or closed out. As of January 31st, traders have sold 2,940,000 shares of MMSI short. Learn More on Merit Medical Systems' current short interest. What is a good short interest ratio for Merit Medical Systems? 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. MMSI shares currently have a short interest ratio of 6.0. Learn More on Merit Medical Systems's short interest ratio. Which institutional investors are shorting Merit Medical Systems? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Merit Medical Systems: Citadel Advisors LLC, and Concourse Financial Group Securities Inc.. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. Is Merit Medical Systems' short interest increasing or decreasing? Merit Medical Systems saw a increase in short interest in January. As of January 31st, there was short interest totaling 2,940,000 shares, an increase of 10.5% from the previous total of 2,660,000 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 Merit Medical Systems' short interest compare to its competitors? Here is how the short interest of companies compare to Merit Medical Systems: West Pharmaceutical Services, Inc. (1.87%), The Cooper Companies, Inc. (1.44%), Align Technology, Inc. (3.24%), ICU Medical, Inc. (3.24%), DENTSPLY SIRONA Inc. (4.11%), Haemonetics Co. (10.60%), QuidelOrtho Co. (5.07%), Neogen Co. (9.26%), STAAR Surgical (8.00%), Cerus Co. (4.63%), 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. ($5.21 billion), Charter Communications, Inc. ($4.07 billion), Reddit, Inc. ($3.33 billion), The Kroger Co. ($2.67 billion), Cencora, Inc. ($2.29 billion), Hims & Hers Health, Inc. ($2.17 billion), SoFi Technologies, Inc. ($1.99 billion), Live Nation Entertainment, Inc. ($1.87 billion), Rivian Automotive, Inc. ($1.76 billion), and Moderna, Inc. ($1.60 billion). View all of the most shorted stocks. What does it mean to sell short Merit Medical Systems stock? Short selling MMSI is an investing strategy that aims to generate trading profit from Merit Medical Systems as its price is falling. MMSI shares are trading down $2.50 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 Merit Medical Systems? A short squeeze for Merit Medical Systems 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 MMSI, which in turn drives the price of the stock up even further. How often is Merit Medical Systems' 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 MMSI, twice per month. The most recent reporting period available is January, 31 2025. More Short Interest Resources from MarketBeat Related Companies WST Short Squeeze COO Short Squeeze ALGN Short Squeeze ICUI Short Squeeze XRAY Short Squeeze HAE Short Squeeze QDEL Short Squeeze NEOG Short Squeeze STAA Short Squeeze CERS 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:MMSI) was last updated on 2/22/2025 by MarketBeat.com Staff From Our PartnersSecret financial plot unfolding in Washington DC… [DEVELOPING]What stocks are next up to soar in 2025? I believe I’ve found the answer - and it might surprise you. 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