Celldex Therapeutics (CLDX) Short Interest Ratio & Short Volume $20.49 -0.42 (-2.01%) As of 05/20/2025 04:00 PM Eastern Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Celldex Therapeutics Short Interest DataCelldex Therapeutics (CLDX) has a short interest of 9.01 million shares. This marks a 2.62% increase in short interest from the previous month. The short interest ratio (days to cover) is 11.6, indicating that it would take 11.6 days of the average trading volume of 893,547 shares to cover all short positions.Current Short Interest9,010,000 sharesPrevious Short Interest8,780,000 sharesChange Vs. Previous Month+2.62%Dollar Volume Sold Short$187.68 millionShort Interest Ratio11.6 Days to CoverLast Record DateApril 30, 2025Outstanding Shares66,384,000 sharesPercentage of Shares Shorted13.57%Today's Trading Volume872,917 sharesAverage Trading Volume893,547 sharesToday's Volume Vs. Average98% Short Selling Celldex Therapeutics? Sign up to receive the latest short interest report for Celldex Therapeutics and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartCLDX Short Interest Over TimeCLDX Days to Cover Over TimeCLDX Percentage of Float Shorted Over Time Celldex Therapeutics Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 4/30/20259,010,000 shares $187.68 million +2.6%N/A11.6 $20.83 4/15/20258,780,000 shares $161.29 million +5.8%13.8%11 $18.37 3/31/20258,300,000 shares $150.65 million -9.3%13.0%9.3 $18.15 3/15/20259,150,000 shares $186.84 million +3.0%14.3%10.5 $20.42 2/28/20258,880,000 shares $182.66 million -3.4%13.9%9.7 $20.57 2/15/20259,190,000 shares $208.61 million +3.6%14.4%9.8 $22.70 1/31/20258,870,000 shares $217.23 million +4.6%N/A8.8 $24.49 1/15/20258,480,000 shares $191.82 million +4.8%N/A8.2 $22.62 12/31/20248,090,000 shares $204.43 million +10.7%N/A8 $25.27 12/15/20247,310,000 shares $185.75 million -5.1%N/A6 $25.41 Get the Latest News and Ratings for CLDX and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Celldex Therapeutics and its competitors with MarketBeat's FREE daily newsletter. 11/30/20247,700,000 shares $211.29 million -1.7%N/A6.5 $27.44 11/15/20247,830,000 shares $184.40 million -5.0%N/A6.8 $23.55 10/31/20248,240,000 shares $214.73 million -1.9%N/A7.7 $26.06 10/15/20248,400,000 shares $246.96 million +1.1%N/A8.3 $29.40 9/30/20248,310,000 shares $282.46 million -1.2%N/A8.5 $33.99 9/15/20248,410,000 shares $371.39 million -1.9%N/A11.4 $44.16 8/31/20248,570,000 shares $354.20 million -1.0%N/A12.2 $41.33 8/15/20248,660,000 shares $286.65 million +3.1%N/A12.2 $33.10 7/31/20248,400,000 shares $320.12 million +13.7%N/A12.1 $38.11 7/15/20247,390,000 shares $292.27 million +5.7%N/A11.5 $39.55 6/30/20246,990,000 shares $258.70 million +8.7%N/A10.9 $37.01 6/15/20246,430,000 shares $222.93 million +2.6%N/A10.1 $34.67 5/31/20246,270,000 shares $208.79 million -5.3%N/A9.1 $33.30 5/15/20246,620,000 shares $265.93 million -5.3%N/A7.4 $40.17 4/30/20246,990,000 shares $261.57 million +3.6%N/A7.7 $37.42 4/15/20246,750,000 shares $263.72 million +2.9%N/A7.3 $39.07 3/31/20246,560,000 shares $275.32 million +11.2%N/A6.9 $41.97 3/15/20245,900,000 shares $247.86 million -8.0%N/A6.4 $42.01 2/29/20246,410,000 shares $308.06 million -7.6%N/A7.4 $48.06 2/15/20246,940,000 shares $255.39 million +3.4%N/A9.3 $36.80 1/31/20246,710,000 shares $236.33 million +7.9%N/A8.5 $35.22 1/15/20246,220,000 shares $261.49 million -5.6%N/A7.6 $42.04 12/31/20236,590,000 shares $261.36 million -10.3%N/A8.6 $39.66 12/15/20237,350,000 shares $273.05 million -8.9%N/A9.6 $37.15 11/30/20238,070,000 shares $243.79 million +2.4%N/A11.1 $30.21 11/15/20237,880,000 shares $224.82 million +40.2%N/A11.3 $28.53 10/31/20235,620,000 shares $132.18 million +0.9%N/A9.2 $23.52 10/15/20235,570,000 shares $145.60 million -3.3%N/A12.1 $26.14 9/30/20235,760,000 shares $158.52 million -5.4%N/A13.1 $27.52 9/15/20236,090,000 shares $170.22 million -3.3%N/A14.3 $27.95Trump wipes out trillions overnight… (Ad)Is there anybody more powerful than Donald Trump right now? In a single tariff announcement, he wiped out nearly $5 trillion in wealth from the S&P 500 and $6.4 trillion from the Dow Jones… Not to mention the countless trillions of dollars lost in every market around the world… leaving the major political powers scrambling in fear of Trump’s next move.Whether you take some of that wealth for yourself depends on if you watch this controversial exposé 8/31/20236,300,000 shares $175.77 million -3.7%N/A13.5 $27.90 8/15/20236,540,000 shares $205.55 million +8.5%N/A14.3 $31.43 7/31/20236,030,000 shares $213.22 million -3.8%N/A13.8 $35.36 7/15/20236,270,000 shares $233.81 million +1.8%N/A13.5 $37.29 6/30/20236,160,000 shares $209.01 million +2.7%N/A11 $33.93 6/15/20236,000,000 shares $221.22 million +3.5%N/A9.8 $36.87 5/31/20235,800,000 shares $184.44 million +7.0%N/A9.3 $31.80 5/15/20235,420,000 shares $185.69 million +1.1%N/A8.4 $34.26 4/30/20235,360,000 shares $168.52 million +3.5%N/A8.4 $31.44 4/15/20235,180,000 shares $156.90 million -1.7%N/A8.6 $30.29 3/31/20235,270,000 shares $189.61 million +38.0%N/A9.9 $35.98 3/15/20233,820,000 shares $167.13 million +5.5%N/A8 $43.75 2/28/20233,620,000 shares $154.90 million +4.3%N/A7.5 $42.79 2/15/20233,470,000 shares $148.79 million +4.5%N/A7.7 $42.88 1/31/20233,320,000 shares $146.28 million -4.3%N/A6.8 $44.06 1/15/20233,470,000 shares $159.69 million +1.8%N/A7 $46.02 12/30/20223,410,000 shares $151.98 million -17.2%N/A6.8 $44.57 12/15/20224,120,000 shares $182.47 million +1.7%N/A8 $44.29 11/30/20224,050,000 shares $150.21 million -1.9%N/A9 $37.09 11/15/20224,130,000 shares $151.53 million -8.2%N/A9 $36.69 10/31/20224,500,000 shares $158.09 million -0.9%N/A9.7 $35.13 10/15/20224,540,000 shares $142.74 million -1.5%N/A9.3 $31.44 9/30/20224,610,000 shares $129.59 million +2.4%N/A9 $28.11 9/15/20224,500,000 shares $136.40 million +2.3%N/A6.2 $30.31 8/31/20224,400,000 shares $133.76 million +4.0%N/A5.6 $30.40 8/15/20224,230,000 shares $158.92 million +14.3%N/A5.1 $37.57 7/31/20223,700,000 shares $113.66 million -2.9%30.7%4.3 $30.72 7/15/20223,810,000 shares $111.79 million -0.3%31.6%4.5 $29.34 6/30/20223,820,000 shares $102.99 million -18.9%31.7%4.7 $26.96 6/15/20224,710,000 shares $104.99 million +1.5%39.0%7.3 $22.29 5/31/20224,640,000 shares $109.13 million -5.5%N/A8 $23.52 5/15/20224,910,000 shares $147.25 million -1.0%N/A8.7 $29.99 4/30/20224,960,000 shares $151.53 million -9.3%N/A9 $30.55 4/15/20225,470,000 shares $196.04 million -0.2%N/A9.8 $35.84 3/31/20225,480,000 shares $186.65 million -8.7%N/A9.3 $34.06 3/15/20226,000,000 shares $187.26 million +3.3%N/A10.3 $31.21 2/28/20225,810,000 shares $173.72 million +11.7%N/A10 $29.90 2/15/20225,200,000 shares $169.78 million +2.4%N/A9.4 $32.65 1/31/20225,080,000 shares $157.53 million +3.3%N/A9.9 $31.01 1/15/20224,920,000 shares $157.00 million +3.1%N/A0 $31.91 12/31/20214,770,000 shares $184.31 million +9.9%N/A10.6 $38.64 12/15/20214,340,000 shares $166.92 million +6.6%N/A10.1 $38.46 11/30/20214,070,000 shares $155.07 million +12.4%N/A9.7 $38.10 11/15/20213,620,000 shares $155.70 million -2.7%N/A8.2 $43.01 10/29/20213,720,000 shares $158.25 million +25.7%N/A7.9 $42.54 10/15/20212,960,000 shares $136.69 million -0.7%N/A5.7 $46.18 9/30/20212,980,000 shares $160.89 million -11.0%N/A3.8 $53.99 9/15/20213,350,000 shares $178.25 million -15.4%N/A3.7 $53.21 8/31/20213,960,000 shares $208.49 million -8.1%N/A4.4 $52.65 8/13/20214,310,000 shares $188.43 million +15.2%N/A4.9 $43.72Banks aren’t ready for this altcoin—are you? 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One altcoin is quietly positioning itself to overthrow the entire banking system.Click here to access the full report now. 7/30/20213,740,000 shares $163.63 million +11.6%N/A4.5 $43.75 7/15/20213,350,000 shares $146.93 million +19.2%N/A4.2 $43.86 6/30/20212,810,000 shares $93.97 million +11.1%7.3%4.1 $33.44 6/15/20212,530,000 shares $73.88 million -18.4%6.6%4.4 $29.20 5/28/20213,100,000 shares $86.65 million -3.7%8.1%5.3 $27.95 5/14/20213,220,000 shares $80.53 million -3.0%N/A5.2 $25.01 4/30/20213,320,000 shares $103.82 million -3.8%N/A5 $31.27 4/15/20213,450,000 shares $76.83 million -3.1%N/A4.9 $22.27 3/31/20213,560,000 shares $70.24 million +24.9%N/A4.9 $19.73 3/15/20212,850,000 shares $72.33 million -0.7%N/A4.3 $25.38 2/26/20212,870,000 shares $78.95 million -16.6%N/A4.4 $27.51 2/12/20213,440,000 shares $81.70 million -2.0%N/A4.9 $23.75 1/29/20213,510,000 shares $72.80 million -1.7%N/A5.2 $20.74 1/15/20213,570,000 shares $64.19 million -25.8%N/A5.6 $17.98 12/31/20204,810,000 shares $86.00 million +118.6%N/A7.9 $17.88 12/15/20202,200,000 shares $40.13 million -9.5%N/A3 $18.24 11/30/20202,430,000 shares $55.28 million -13.8%N/A3.4 $22.75 11/15/20202,820,000 shares $56.32 million -5.4%N/A4.1 $19.97 10/30/20202,980,000 shares $45.83 million -8.0%N/A4.5 $15.38 10/15/20203,240,000 shares $52.91 million -1.5%N/A4.6 $16.33 9/30/20203,290,000 shares $48.79 million +9.7%N/A4.3 $14.83 9/15/20203,000,000 shares $35.19 million +23.5%N/A4.4 $11.73 8/31/20202,430,000 shares $29.01 million +102.5%N/A0.9 $11.94 8/14/20201,200,000 shares $12.37 million +52.5%N/A0.4 $10.31 7/31/2020787,000 shares $8.10 million -17.3%N/A0.3 $10.29 7/15/2020951,200 shares $10.21 million -37.8%N/A0.3 $10.73 6/30/20201,530,000 shares $19.89 million -33.8%N/A0.6 $13.00 6/15/20202,310,000 shares $24.74 million +668.2%N/A0.9 $10.71 5/29/2020300,700 shares $796,855.00 +13.8%N/A0.7 $2.65 CLDX Short Interest - Frequently Asked Questions What is Celldex Therapeutics' current short interest? Short interest is the volume of Celldex Therapeutics shares that have been sold short but have not yet been covered or closed out. As of April 30th, investors have sold 9,010,000 shares of CLDX short. Learn More on Celldex Therapeutics' current short interest. What is a good short interest ratio for Celldex Therapeutics? 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. CLDX shares currently have a short interest ratio of 12.0. Learn More on Celldex Therapeutics's short interest ratio. Which institutional investors are shorting Celldex Therapeutics? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Celldex Therapeutics: Jane Street Group LLC, Simplex Trading LLC, and Jefferies Financial Group Inc.. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. Is Celldex Therapeutics' short interest increasing or decreasing? Celldex Therapeutics saw a increase in short interest in the month of April. As of April 30th, there was short interest totaling 9,010,000 shares, an increase of 2.6% from the previous total of 8,780,000 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 Celldex Therapeutics' short interest compare to its competitors? Here is how the short interest of companies in the industry of "biotechnology" compare to Celldex Therapeutics: Ionis Pharmaceuticals, Inc. (9.45%), Alkermes plc (7.74%), BioCryst Pharmaceuticals, Inc. (8.75%), Ligand Pharmaceuticals Incorporated (6.32%), Amicus Therapeutics, Inc. (5.97%), MannKind Co. (8.82%), Dynavax Technologies Co. (17.13%), Innoviva, Inc. (14.00%), Novavax, Inc. (26.13%), OPKO Health, Inc. (9.74%), 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 Celldex Therapeutics stock? Short selling CLDX is an investing strategy that aims to generate trading profit from Celldex Therapeutics as its price is falling. CLDX shares are trading down $0.42 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 Celldex Therapeutics? A short squeeze for Celldex Therapeutics 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 CLDX, which in turn drives the price of the stock up even further. How often is Celldex Therapeutics' 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 CLDX, twice per month. The most recent reporting period available is April, 30 2025. More Short Interest Resources from MarketBeat Related Companies IONS Short Interest Data ALKS Short Interest Data BCRX Short Interest Data LGND Short Interest Data FOLD Short Interest Data MNKD Short Interest Data DVAX Short Interest Data INVA Short Interest Data NVAX Short Interest Data OPK 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:CLDX) 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. 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