Celldex Therapeutics (CLDX) Short Interest Ratio & Short Volume $17.69 -0.68 (-3.70%) As of 12:11 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 8.30 million shares, representing 13.00% of the float (the number of shares available for trading by the public). This marks a -9.29% decrease in short interest from the previous month. The short interest ratio (days to cover) is 9.3, indicating that it would take 9.3 days of the average trading volume of 879,599 shares to cover all short positions.Current Short Interest8,300,000 sharesPrevious Short Interest9,150,000 sharesChange Vs. Previous Month-9.29%Dollar Volume Sold Short$150.65 millionShort Interest Ratio9.3 Days to CoverLast Record DateMarch 31, 2025Outstanding Shares66,384,000 sharesShort Percent of Float13.00%Today's Trading Volume306,849 sharesAverage Trading Volume879,599 sharesToday's Volume Vs. Average35% 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 Remove Ads 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 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 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 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. 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 $27.95 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 $31.43The Last Time This Happened, Americans Lost Billions (Ad)Wall Street leaders just held a secret meeting in Las Vegas. What they discussed mirrors 2006 — and the warning signs are everywhere. Economist Addison Wiggin reveals what’s coming.Vegas summit just revealed a $36T event. See the video 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 $43.72 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 $43.86The Last Time This Happened, Americans Lost Billions (Ad)Wall Street leaders just held a secret meeting in Las Vegas. What they discussed mirrors 2006 — and the warning signs are everywhere. Economist Addison Wiggin reveals what’s coming.Vegas summit just revealed a $36T event. See the video 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 5/15/2020264,200 shares $597,092.00 -13.9%N/A0.7 $2.26 4/30/2020306,700 shares $751,415.00 -2.6%N/A0.7 $2.45 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 March 31st, traders have sold 8,300,000 shares of CLDX short. 13.00% of Celldex Therapeutics' shares are currently sold 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 9.0. 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: Jefferies Financial Group Inc., Group One Trading LLC, Citadel Advisors LLC, Jane Street Group LLC, Boothbay Fund Management LLC, Susquehanna International Group LLP, Concourse Financial Group Securities Inc., Valence8 US LP, and Belvedere Trading LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for Celldex Therapeutics? 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. 13.00% of Celldex Therapeutics' floating shares are currently sold short. Is Celldex Therapeutics' short interest increasing or decreasing? Celldex Therapeutics saw a decrease in short interest in the month of March. As of March 31st, there was short interest totaling 8,300,000 shares, a decrease of 9.3% from the previous total of 9,150,000 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? 13.00% of Celldex Therapeutics' shares are currently sold short. Here is how the short interest of companies in the industry of "biotechnology" compare to Celldex Therapeutics: Ionis Pharmaceuticals, Inc. (8.63%), Alkermes plc (7.11%), Amicus Therapeutics, Inc. (6.33%), Ligand Pharmaceuticals Incorporated (5.68%), BioCryst Pharmaceuticals, Inc. (10.51%), Dynavax Technologies Co. (14.43%), MannKind Co. (9.69%), Innoviva, Inc. (13.91%), Novavax, Inc. (23.26%), OPKO Health, Inc. (38.31%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Invesco QQQ ($21.93 billion), iShares 20+ Year Treasury Bond ETF ($9.31 billion), Strategy Incorporated ($8.42 billion), Charter Communications, Inc. ($4.52 billion), Apollo Global Management, Inc. ($4.26 billion), Super Micro Computer, Inc. ($3.98 billion), Capital One Financial Co. ($3.79 billion), TC Energy Co. ($3.43 billion), AppLovin Co. ($2.91 billion), and Schlumberger Limited ($2.89 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 up $0.58 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 increases 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 March, 31 2025. More Short Interest Resources from MarketBeat Related Companies IONS Short Interest Data ALKS Short Interest Data FOLD Short Interest Data LGND Short Interest Data BCRX Short Interest Data DVAX Short Interest Data MNKD 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 4/16/2025 by MarketBeat.com Staff From Our PartnersThe Last Time This Happened, Americans Lost BillionsWall Street leaders just held a secret meeting in Las Vegas. What they discussed mirrors 2006 — and the warnin...Banyan Hill Publishing | SponsoredTwo Unmistakable Patterns Return…The signs suggest we're entering one of those rare periods now. 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