Supernus Pharmaceuticals (SUPN) Short Interest Ratio & Short Volume $33.20 +0.15 (+0.45%) As of 05/20/2025 04:00 PM Eastern Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Supernus Pharmaceuticals Short Interest DataSupernus Pharmaceuticals (SUPN) has a short interest of 3.97 million shares. This marks a -4.11% decrease in short interest from the previous month. The short interest ratio (days to cover) is 6.4, indicating that it would take 6.4 days of the average trading volume of 486,958 shares to cover all short positions.Current Short Interest3,970,000 sharesPrevious Short Interest4,140,000 sharesChange Vs. Previous Month-4.11%Dollar Volume Sold Short$128.95 millionShort Interest Ratio6.4 Days to CoverLast Record DateApril 30, 2025Outstanding Shares55,990,000 sharesPercentage of Shares Shorted7.09%Today's Trading Volume488,743 sharesAverage Trading Volume486,958 sharesToday's Volume Vs. Average100% Short Selling Supernus Pharmaceuticals? Sign up to receive the latest short interest report for Supernus 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 ChartSUPN Short Interest Over TimeSUPN Days to Cover Over TimeSUPN Percentage of Float Shorted Over Time Supernus 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 4/30/20253,970,000 shares $128.95 million -4.1%N/A6.4 $32.48 4/15/20254,140,000 shares $130.24 million -11.2%8.3%6.8 $31.46 3/31/20254,660,000 shares $152.62 million -7.4%9.3%7.8 $32.75 3/15/20255,030,000 shares $157.24 million -17.0%10.0%9 $31.26 2/28/20256,060,000 shares $194.28 million +5.9%12.1%12.4 $32.06 2/15/20255,720,000 shares $223.71 million -0.4%10.8%13.6 $39.11 1/31/20255,740,000 shares $220.24 million -4.7%10.9%15.9 $38.37 1/15/20256,020,000 shares $230.63 million -2.9%11.4%16.6 $38.31 12/31/20246,200,000 shares $224.19 million -6.6%11.7%17.2 $36.16 12/15/20246,640,000 shares $240.17 million +3.0%12.6%19.4 $36.17 Get the Latest News and Ratings for SUPN and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Supernus Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. 11/30/20246,450,000 shares $235.88 million -1.1%12.2%17.8 $36.57 11/15/20246,520,000 shares $231.92 million -4.1%12.3%18.3 $35.57 10/31/20246,800,000 shares $231.68 million +0.4%12.9%18.1 $34.07 10/15/20246,770,000 shares $226.93 million -2.9%12.8%17.2 $33.52 9/30/20246,970,000 shares $217.32 million +2.5%13.2%15.8 $31.18 9/15/20246,800,000 shares $211.55 million +2.0%12.9%14.1 $31.11 8/31/20246,670,000 shares $234.52 million +1.7%12.6%12.5 $35.16 8/15/20246,560,000 shares $224.68 million +6.5%12.4%11.4 $34.25 7/31/20246,160,000 shares $183.69 million -2.4%11.7%9.8 $29.82 7/15/20246,310,000 shares $181.29 million +3.1%12.0%10.9 $28.73 6/30/20246,120,000 shares $163.71 million +4.9%11.6%11 $26.75 6/15/20245,834,000 shares $151.63 million +11.8%11.1%11 $25.99 5/31/20245,220,000 shares $141.57 million +6.3%9.9%10.6 $27.12 5/15/20244,910,000 shares $141.11 million +1.9%9.3%10.2 $28.74 4/30/20244,820,000 shares $145.08 million +3.0%9.2%11.8 $30.10 4/15/20244,680,000 shares $140.35 million -2.9%8.9%12.1 $29.99 3/31/20244,820,000 shares $164.41 million -2.0%9.2%12.3 $34.11 3/15/20244,920,000 shares $162.26 million +11.6%9.4%13 $32.98 2/29/20244,410,000 shares $130.98 million +9.4%8.4%12.2 $29.70 2/15/20244,030,000 shares $115.50 million +7.8%7.7%12.1 $28.66 1/31/20243,740,000 shares $103.52 million -16.9%7.1%10.6 $27.68 1/15/20244,500,000 shares $127.08 million +0.2%8.6%11.8 $28.24 12/31/20234,490,000 shares $129.94 million +0.9%N/A0 $28.94 12/15/20234,450,000 shares $121.26 million +7.0%8.5%10.9 $27.25 11/30/20234,160,000 shares $113.36 million +0.2%7.9%9.5 $27.25 11/15/20234,150,000 shares $118.65 million +4.5%7.9%9.3 $28.59 10/31/20233,970,000 shares $94.68 million +1.8%7.6%8.6 $23.85 10/15/20233,900,000 shares $96.88 million -0.5%7.5%8.6 $24.84 9/30/20233,920,000 shares $108.07 million -9.1%7.5%9.1 $27.57 9/15/20234,310,000 shares $125.98 million +3.9%8.2%9.6 $29.23Get Your Bank Account “Fed Invasion” Ready with THESE 4 Simple Steps (Ad)Starting as soon as a few months from now, the United States government will make a sweeping change to bank accounts nationwide. It will give them unprecedented powers to control your bank account.Learn these 4 simple steps and protect your savings before it’s too late. 8/31/20234,150,000 shares $132.14 million +1.0%7.9%8.9 $31.84 8/15/20234,110,000 shares $130.86 million -1.0%7.9%8.8 $31.84 7/31/20234,150,000 shares $127.36 million -25.0%8.0%8.7 $30.69 7/15/20235,530,000 shares $166.07 million -0.9%10.6%12.5 $30.03 6/30/20235,580,000 shares $167.73 million +2.2%10.7%12.4 $30.06 6/15/20235,460,000 shares $183.40 million +3.2%10.5%12.5 $33.59 5/31/20235,290,000 shares $175.31 million +10.9%10.1%13.3 $33.14 5/15/20234,770,000 shares $165.71 million +6.5%9.1%11.6 $34.74 4/30/20234,480,000 shares $165.13 million +10.6%8.6%11.2 $36.86 4/15/20234,050,000 shares $146.04 million +1.5%7.8%9.7 $36.06 3/31/20233,990,000 shares $144.56 million -10.5%7.7%9.6 $36.23 3/15/20234,460,000 shares $158.37 million -3.5%8.6%10.4 $35.51 2/28/20234,620,000 shares $173.67 million -4.7%8.9%11.5 $37.59 2/15/20234,850,000 shares $187.02 million -9.4%9.4%12.7 $38.56 1/31/20235,350,000 shares $219.40 million -3.3%10.3%13.2 $41.01 1/15/20235,530,000 shares $220.54 million +0.6%10.7%15 $39.88 12/30/20225,500,000 shares $196.19 million +11.8%10.6%14.3 $35.67 12/15/20224,920,000 shares $174.56 million -13.4%9.5%12.6 $35.48 11/30/20225,680,000 shares $208.57 million -0.5%11.0%14.6 $36.72 11/15/20225,710,000 shares $194.14 million -3.4%11.0%14.6 $34.00 10/31/20225,910,000 shares $202.54 million -1.8%11.5%14.6 $34.27 10/15/20226,020,000 shares $195.41 million -1.3%11.7%14.5 $32.46 9/30/20226,100,000 shares $206.49 million -0.7%11.9%14.6 $33.85 9/15/20226,140,000 shares $213.86 million +8.1%12.0%16.1 $34.83 8/31/20225,680,000 shares $194.43 million +3.8%11.1%15.5 $34.23 8/15/20225,470,000 shares $185.93 million -2.0%10.7%15.6 $33.99 7/31/20225,580,000 shares $177.17 million -0.9%11.0%14.5 $31.75 7/15/20225,630,000 shares $167.10 million +0.9%11.1%15.1 $29.68 6/30/20225,580,000 shares $161.37 million +1.3%11.0%13.5 $28.92 6/15/20225,510,000 shares $151.14 million -2.5%10.9%13 $27.43 5/31/20225,650,000 shares $157.47 million +6.6%11.0%13.5 $27.87 5/15/20225,300,000 shares $141.99 million +2.7%10.3%10.8 $26.79 4/30/20225,160,000 shares $143.96 million +1.8%10.1%10.9 $27.90 4/15/20225,070,000 shares $157.68 million +6.7%9.9%10.8 $31.10 3/31/20224,750,000 shares $153.52 million -2.1%9.3%10.6 $32.32 3/15/20224,850,000 shares $146.37 million -12.5%9.5%11.4 $30.18 2/28/20225,540,000 shares $177.00 million -19.4%10.8%11.9 $31.95 2/15/20226,870,000 shares $209.88 million -3.8%13.4%15.6 $30.55 1/31/20227,140,000 shares $220.27 million -3.9%13.9%16.9 $30.85 1/15/20227,430,000 shares $225.57 million +2.1%14.5%17.7 $30.36 12/31/20217,280,000 shares $212.28 million -5.1%14.2%16.9 $29.16 12/15/20217,670,000 shares $219.67 million +6.5%15.0%17.5 $28.64 11/30/20217,200,000 shares $215.78 million +0.3%14.1%17.9 $29.97 11/15/20217,180,000 shares $234.00 million -7.4%14.0%17.9 $32.59 10/29/20217,750,000 shares $231.34 million +1.8%15.1%19.6 $29.85 10/15/20217,610,000 shares $240.93 million -0.9%14.9%19.7 $31.66 9/30/20217,680,000 shares $204.83 million +1.9%15.0%19.4 $26.67 9/15/20217,540,000 shares $203.66 million +2.0%14.7%17.8 $27.01 8/31/20217,390,000 shares $203.45 million -1.5%14.4%16.6 $27.53 8/13/20217,500,000 shares $185.55 million No Change14.7%17.3 $24.74The Robotics Revolution has arrived … and one $7 stock could take off as a result. 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In fact, I believe these robots could impact 65 million Americans lives — by August of this year.I'll tell you more about the $7 company Huang and Nvidia joined forces with to make it happen. 7/30/20217,500,000 shares $197.48 million -6.7%14.7%17.1 $26.33 7/15/20218,040,000 shares $212.34 million -12.0%15.7%17.7 $26.41 6/30/20219,140,000 shares $281.42 million +8.4%17.9%20 $30.79 6/15/20218,430,000 shares $269.09 million -6.2%16.5%16.8 $31.92 5/28/20218,990,000 shares $268.35 million +1.9%17.6%18.4 $29.85 5/14/20218,820,000 shares $263.10 million -1.2%17.3%15.1 $29.83 4/30/20218,930,000 shares $279.24 million +9.8%17.5%15.4 $31.27 4/15/20218,130,000 shares $259.10 million +10.8%15.9%13.9 $31.87 3/31/20217,340,000 shares $192.05 million -1.7%14.4%12.3 $26.17 3/15/20217,470,000 shares $199.45 million No Change14.6%11.5 $26.70 2/26/20217,470,000 shares $219.99 million +4.5%14.7%11.6 $29.45 2/12/20217,150,000 shares $219.15 million +5.2%14.1%12.6 $30.65 1/29/20216,800,000 shares $205.09 million +5.3%13.5%10.9 $30.16 1/15/20216,460,000 shares $185.98 million +0.6%12.8%10 $28.79 12/31/20206,420,000 shares $161.01 million +8.5%12.7%10.8 $25.08 12/15/20205,920,000 shares $128.35 million +3.1%11.7%10.4 $21.68 11/30/20205,740,000 shares $125.53 million +1.6%11.4%12.1 $21.87 11/15/20205,650,000 shares $130.01 million +8.9%11.2%11.5 $23.01 10/30/20205,190,000 shares $95.24 million +1.4%10.3%10.6 $18.35 10/15/20205,120,000 shares $105.06 million -1.4%10.2%12.1 $20.52 9/30/20205,190,000 shares $108.16 million -2.3%10.3%11.4 $20.84 9/15/20205,310,000 shares $116.61 million -1.7%10.6%11.2 $21.96 8/31/20205,400,000 shares $118.75 million +0.4%10.7%11.4 $21.99 8/14/20205,380,000 shares $129.93 million +12.1%10.7%10.9 $24.15 7/31/20204,800,000 shares $106.85 million +5.5%9.5%9.8 $22.26 7/15/20204,550,000 shares $108.75 million +2.0%9.0%8.8 $23.90 6/30/20204,460,000 shares $103.78 million +4.5%8.8%8.2 $23.27 6/15/20204,270,000 shares $98.51 million +1.4%8.4%7.7 $23.07 5/29/20204,210,000 shares $101.55 million +3.2%8.3%6.8 $24.12 SUPN Short Interest - Frequently Asked Questions What is Supernus Pharmaceuticals' current short interest? Short interest is the volume of Supernus Pharmaceuticals shares that have been sold short but have not yet been closed out or covered. As of April 30th, investors have sold 3,970,000 shares of SUPN short. Learn More on Supernus Pharmaceuticals' current short interest. What is a good short interest ratio for Supernus 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. SUPN shares currently have a short interest ratio of 6.0. Learn More on Supernus Pharmaceuticals's short interest ratio. Is Supernus Pharmaceuticals' short interest increasing or decreasing? Supernus Pharmaceuticals saw a drop in short interest in April. As of April 30th, there was short interest totaling 3,970,000 shares, a drop of 4.1% from the previous total of 4,140,000 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 Supernus Pharmaceuticals' short interest compare to its competitors? Here is how the short interest of companies in the industry of "pharmaceutical preparations" compare to Supernus Pharmaceuticals: Jazz Pharmaceuticals plc (9.09%), Perrigo Company plc (3.80%), Pacira BioSciences, Inc. (13.29%), Omeros Co. (16.46%), Nektar Therapeutics (4.98%), Assembly Biosciences, Inc. (0.33%), Cumberland Pharmaceuticals Inc. (1.11%), Eli Lilly and Company (0.86%), Johnson & Johnson (0.82%), AbbVie Inc. (1.12%), 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 Supernus Pharmaceuticals stock? Short selling SUPN is an investing strategy that aims to generate trading profit from Supernus Pharmaceuticals as its price is falling. SUPN shares are trading up $0.15 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 Supernus Pharmaceuticals? A short squeeze for Supernus 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 SUPN, which in turn drives the price of the stock up even further. How often is Supernus 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 SUPN, twice per month. The most recent reporting period available is April, 30 2025. More Short Interest Resources from MarketBeat Related Companies JAZZ Short Squeeze PRGO Short Squeeze PCRX Short Squeeze OMER Short Squeeze NKTR Short Squeeze ASMB Short Squeeze CPIX Short Squeeze LLY Short Squeeze JNJ Short Squeeze ABBV 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:SUPN) 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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