Lantheus (LNTH) Short Interest Ratio & Short Volume $76.83 -1.42 (-1.81%) As of 04:00 PM Eastern Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Lantheus Short Interest DataLantheus (LNTH) has a short interest of 6.89 million shares, representing 10.28% of the float (the number of shares available for trading by the public). This marks a 1.47% increase in short interest from the previous month. The short interest ratio (days to cover) is 6.6, indicating that it would take 6.6 days of the average trading volume of 983,943 shares to cover all short positions.Current Short Interest6,890,000 sharesPrevious Short Interest6,790,000 sharesChange Vs. Previous Month+1.47%Dollar Volume Sold Short$718.90 millionShort Interest Ratio6.6 Days to CoverLast Record DateApril 30, 2025Outstanding Shares69,186,000 sharesFloat Size67,050,000 sharesShort Percent of Float10.28%Today's Trading Volume1,208,591 sharesAverage Trading Volume983,943 sharesToday's Volume Vs. Average123% Short Selling Lantheus? Sign up to receive the latest short interest report for Lantheus and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartLNTH Short Interest Over TimeLNTH Days to Cover Over TimeLNTH Percentage of Float Shorted Over Time Lantheus Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 4/30/20256,890,000 shares $718.90 million +1.5%10.3%6.6 $104.34 4/15/20256,790,000 shares $697.88 million +5.8%10.2%7.6 $102.78 3/31/20256,420,000 shares $626.59 million -0.6%9.7%7.1 $97.60 3/15/20256,460,000 shares $653.11 million +1.9%9.7%7.2 $101.10 2/28/20256,340,000 shares $594.82 million -13.3%9.5%7 $93.82 2/15/20257,310,000 shares $584.36 million +2.2%10.7%7.9 $79.94 1/31/20257,150,000 shares $661.45 million +8.0%10.6%6.7 $92.51 1/15/20256,620,000 shares $618.51 million +7.0%N/A6.4 $93.43 12/31/20246,190,000 shares $553.76 million +32.3%N/A6.1 $89.46 12/15/20244,680,000 shares $435.33 million No ChangeN/A4.7 $93.02 Get the Latest News and Ratings for LNTH and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Lantheus and its competitors with MarketBeat's FREE daily newsletter. 11/30/20244,680,000 shares $417.78 million +5.2%N/A4.8 $89.27 11/15/20244,450,000 shares $341.89 million +6.2%N/A4.7 $76.83 10/31/20244,190,000 shares $460.23 million -1.4%N/A5.1 $109.84 10/15/20244,250,000 shares $475.83 million +3.2%N/A5.7 $111.96 9/30/20244,120,000 shares $452.17 million -1.4%N/A4 $109.75 9/15/20244,180,000 shares $441.20 million -1.7%N/A3.9 $105.55 8/31/20244,250,000 shares $452.50 million +13.6%N/A4 $106.47 8/15/20243,740,000 shares $355.67 million No ChangeN/A3.5 $95.10 7/31/20243,740,000 shares $392.06 million -18.3%N/A3.5 $104.83 7/15/20244,580,000 shares $564.21 million +4.8%N/A4.3 $123.19 6/30/20244,370,000 shares $350.87 million +13.5%N/A4.8 $80.29 6/15/20243,850,000 shares $305.15 million -9.2%N/A4.6 $79.26 5/31/20244,240,000 shares $346.96 million -5.4%N/A5 $81.83 5/15/20244,480,000 shares $356.61 million -9.5%N/A5 $79.60 4/30/20244,950,000 shares $329.37 million +6.5%N/A5.3 $66.54 4/15/20244,650,000 shares $280.16 million -1.5%7.0%4.8 $60.25 3/31/20244,720,000 shares $293.77 million -8.9%7.1%4.3 $62.24 3/15/20245,180,000 shares $301.32 million -0.8%7.7%4.5 $58.17 2/29/20245,220,000 shares $341.28 million +3.8%7.8%3.8 $65.38 2/15/20245,030,000 shares $290.48 million +2.9%7.5%3.6 $57.75 1/31/20244,890,000 shares $253.94 million -11.4%7.3%3.8 $51.93 1/15/20245,520,000 shares $310.44 million +5.8%8.2%4.2 $56.24 12/31/20235,220,000 shares $323.64 million +3.6%7.8%4.5 $62.00 12/15/20235,040,000 shares $383.24 million +3.3%7.5%4.2 $76.04 11/30/20234,880,000 shares $349.51 million +2.7%7.3%4.9 $71.62 11/15/20234,750,000 shares $324.81 million -1.9%7.1%5.1 $68.38 10/31/20234,840,000 shares $312.66 million +8.0%7.2%4.9 $64.60 10/15/20234,480,000 shares $302.27 million -8.6%6.7%4.2 $67.47 9/30/20234,900,000 shares $340.45 million -2.2%7.3%4.6 $69.48 9/15/20235,010,000 shares $324.70 million -3.7%7.5%5 $64.81Collect $7k per month from Tesla’s SECRET dividend (Ad)I just uncovered a strategy that could pay out up to $7,013 every month—without needing a traditional dividend. 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This backdoor is already live—and it could change the way you earn.Start your monthly payout stream today 8/31/20235,200,000 shares $355.89 million -2.3%7.8%5.2 $68.44 8/15/20235,320,000 shares $364.15 million +17.2%7.9%5 $68.45 7/31/20234,540,000 shares $392.66 million -8.1%6.8%4.3 $86.49 7/15/20234,940,000 shares $425.28 million -4.6%7.4%4.8 $86.09 6/30/20235,180,000 shares $434.71 million +11.4%7.8%5.1 $83.92 6/15/20234,650,000 shares $417.62 million +26.4%7.0%4.5 $89.81 5/31/20233,680,000 shares $318.65 million +8.6%5.5%3.6 $86.59 5/15/20233,390,000 shares $336.32 million -6.9%5.1%3.2 $99.21 4/30/20233,640,000 shares $311.04 million +4.6%5.5%3.4 $85.45 4/15/20233,480,000 shares $308.57 million -0.6%5.3%3.6 $88.67 3/31/20233,500,000 shares $288.96 million +2.3%5.3%3.5 $82.56 3/15/20233,420,000 shares $250.48 million -8.1%5.2%3.4 $73.24 2/28/20233,720,000 shares $275.13 million +32.9%5.6%3.3 $73.96 2/15/20232,800,000 shares $168.08 million -12.5%4.2%2.6 $60.03 1/31/20233,200,000 shares $184 million -7.3%4.8%2.9 $57.50 1/15/20233,450,000 shares $183.13 million -5.5%5.1%3.1 $53.08 12/30/20223,650,000 shares $186.00 million +3.1%5.4%2.7 $50.96 12/15/20223,540,000 shares $186.63 million +91.4%5.3%2.5 $52.72 11/30/20221,850,000 shares $114.85 million -28.6%2.7%1.3 $62.08 11/15/20222,590,000 shares $152.94 million -20.3%3.9%2 $59.05 10/31/20223,250,000 shares $240.47 million -12.9%4.8%2.6 $73.99 10/15/20223,730,000 shares $256.77 million +9.7%5.6%2.9 $68.84 9/30/20223,400,000 shares $239.12 million +13.7%5.1%2.5 $70.33 9/15/20222,990,000 shares $248.35 million +5.7%4.5%2.7 $83.06 8/31/20222,830,000 shares $223.00 million +7.6%4.2%2.4 $78.80 8/15/20222,630,000 shares $220.13 million -0.8%3.9%2.2 $83.70 7/31/20222,650,000 shares $203.31 million +3.9%4.0%2.1 $76.72 7/15/20222,550,000 shares $180.16 million +7.1%3.8%2 $70.65 6/30/20222,380,000 shares $157.15 million +2.2%3.6%1.9 $66.03 6/15/20222,330,000 shares $149.96 million -2.1%3.5%1.8 $64.36 5/31/20222,380,000 shares $163.08 million -7.0%3.6%1.8 $68.52 5/15/20222,560,000 shares $163.84 million +8.0%3.9%1.8 $64.00 4/30/20222,370,000 shares $157.39 million +9.2%3.6%1.8 $66.41 4/15/20222,170,000 shares $130.81 million -4.8%3.3%1.9 $60.28 3/31/20222,280,000 shares $126.11 million +8.1%3.5%2.2 $55.31 3/15/20222,110,000 shares $110.92 million -5.8%3.2%2.6 $52.57 2/28/20222,240,000 shares $107.12 million +19.8%3.4%3.2 $47.82 2/15/20221,870,000 shares $54.30 million +5.7%2.9%3.4 $29.04 1/31/20221,770,000 shares $44.98 million +7.9%2.7%4.4 $25.41 1/15/20221,640,000 shares $44.76 million +0.6%2.5%3.8 $27.29 12/31/20211,630,000 shares $47.09 million -7.4%2.5%3.8 $28.89 12/15/20211,760,000 shares $48.21 million +1.7%2.7%4.1 $27.39 11/30/20211,730,000 shares $46.33 million -5.0%2.6%4.4 $26.78 11/15/20211,820,000 shares $54.22 million -28.9%2.8%4.8 $29.79 10/29/20212,560,000 shares $59.88 million -4.1%3.9%6.7 $23.39 10/15/20212,670,000 shares $62.10 million -2.6%4.1%7.1 $23.26 9/30/20212,740,000 shares $70.36 million +0.4%4.2%6.8 $25.68 9/15/20212,730,000 shares $69.37 million -3.5%4.2%5.7 $25.41 8/31/20212,830,000 shares $74.63 million -13.5%4.3%5.8 $26.37 8/13/20213,270,000 shares $83.45 million +6.5%5.0%5 $25.52Collect $7k per month from Tesla’s SECRET dividend (Ad)I just uncovered a strategy that could pay out up to $7,013 every month—without needing a traditional dividend. 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This backdoor is already live—and it could change the way you earn.Start your monthly payout stream today 7/30/20213,070,000 shares $80.34 million -13.0%4.7%4.4 $26.17 7/15/20213,530,000 shares $90.65 million -7.4%5.4%4.6 $25.68 6/30/20213,810,000 shares $105.31 million -3.5%5.8%4.9 $27.64 6/15/20213,950,000 shares $96.54 million +45.2%6.0%5.3 $24.44 5/28/20212,720,000 shares $65.96 million No Change4.1%3.6 $24.25 5/14/20212,720,000 shares $56.49 million -1.8%N/A4.3 $20.77 4/30/20212,770,000 shares $65.15 million -0.7%N/A4.5 $23.52 4/15/20212,790,000 shares $59.57 million +3.0%N/A5 $21.35 3/31/20212,710,000 shares $58.70 million +4.6%N/A4.9 $21.66 3/15/20212,590,000 shares $50.89 million +7.9%N/A4.4 $19.65 2/26/20212,400,000 shares $45.96 million +7.6%N/A4.3 $19.15 2/12/20212,230,000 shares $44.58 million +7.2%N/A4.1 $19.99 1/29/20212,080,000 shares $33.36 million -1.9%N/A3.7 $16.04 1/15/20212,120,000 shares $33.73 million -2.3%N/A3.8 $15.91 12/31/20202,170,000 shares $28.82 million -1.8%N/A4 $13.28 12/15/20202,210,000 shares $31.27 million -3.5%N/A4.2 $14.15 11/30/20202,290,000 shares $30.16 million +13.4%N/A4.7 $13.17 11/15/20202,020,000 shares $24.56 million +8.6%N/A4.2 $12.16 10/30/20201,860,000 shares $20.84 million -9.3%N/A4.1 $11.21 10/15/20202,050,000 shares $26.90 million +10.8%N/A4.1 $13.12 9/30/20201,850,000 shares $23.44 million -11.9%N/A0 $12.67 9/15/20202,100,000 shares $26.99 million +0.5%N/A3.6 $12.85 8/31/20202,090,000 shares $28.05 million +2.0%N/A2.8 $13.42 8/14/20202,050,000 shares $27.76 million -6.4%N/A2.7 $13.54 7/31/20202,190,000 shares $29.52 million -4.0%N/A3 $13.48 7/15/20202,280,000 shares $34.18 million -28.3%N/A3.5 $14.99 6/30/20203,180,000 shares $44.55 million +32.5%N/A5.2 $14.01 6/15/20202,400,000 shares $32.62 million +10.6%N/A4.3 $13.59 5/29/20202,170,000 shares $29.79 million -5.2%5.6%5.3 $13.73 LNTH Short Interest - Frequently Asked Questions What is Lantheus' current short interest? Short interest is the volume of Lantheus shares that have been sold short but have not yet been closed out or covered. As of April 30th, traders have sold 6,890,000 shares of LNTH short. 10.28% of Lantheus' shares are currently sold short. Learn More on Lantheus' current short interest. What is a good short interest ratio for Lantheus? 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. LNTH shares currently have a short interest ratio of 7.0. Learn More on Lantheus's short interest ratio. Which institutional investors are shorting Lantheus? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Lantheus: Jane Street Group LLC, Cubist Systematic Strategies LLC, Twin Tree Management LP, PEAK6 LLC, Jane Street Group LLC, Walleye Trading LLC, Walleye Capital LLC, and Atika Capital Management LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for Lantheus? 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. 10.28% of Lantheus' floating shares are currently sold short. Is Lantheus' short interest increasing or decreasing? Lantheus saw a increase in short interest in April. As of April 30th, there was short interest totaling 6,890,000 shares, an increase of 1.5% from the previous total of 6,790,000 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 Lantheus' float size? Lantheus currently has issued a total of 69,186,000 shares. Some of Lantheus' 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. Lantheus currently has a public float of 67,050,000 shares. How does Lantheus' short interest compare to its competitors? 10.28% of Lantheus' shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Lantheus: Teva Pharmaceutical Industries Limited (2.51%), Summit Therapeutics Inc. (3.66%), Intra-Cellular Therapies, Inc. (2.58%), Genmab A/S (0.39%), Dr. Reddy's Laboratories Limited (1.79%), Viatris Inc. (4.27%), Moderna, Inc. (17.58%), Qiagen (2.35%), Ascendis Pharma A/S (6.40%), Roivant Sciences Ltd. (12.03%), 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 Lantheus stock? Short selling LNTH is an investing strategy that aims to generate trading profit from Lantheus as its price is falling. LNTH shares are trading down $1.22 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 Lantheus? A short squeeze for Lantheus 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 LNTH, which in turn drives the price of the stock up even further. How often is Lantheus' 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 LNTH, twice per month. The most recent reporting period available is April, 30 2025. More Short Interest Resources from MarketBeat Related Companies Teva Pharmaceutical Industries Short Interest Data Summit Therapeutics Short Interest Data Intra-Cellular Therapies Short Interest Data Genmab A/S Short Interest Data Dr. Reddy's Laboratories Short Interest Data Viatris Short Interest Data Moderna Short Interest Data Qiagen Short Interest Data Ascendis Pharma A/S Short Interest Data Roivant Sciences Short Interest Data Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:LNTH) was last updated on 5/20/2025 by MarketBeat.com Staff From Our PartnersEveryone’s watching Nvidia right now. Here’s why I’m excited.So, unless you’ve been living under a rock, you probably saw the news… Nvidia just signed a $7 BILLION deal...Timothy Sykes | SponsoredWhite House to reset Social Security?Elon Musk's parting DOGE gift looks set to shock America... 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