Delcath Systems (DCTH) Short Interest Ratio & Short Volume $10.88 -0.06 (-0.55%) Closing price 04:00 PM EasternExtended Trading$11.00 +0.12 (+1.10%) As of 05:19 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 ForecastsChartCompetitorsEarningsFDA EventsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Delcath Systems Short Interest DataDelcath Systems (DCTH) has a short interest of 2.82 million shares, representing 9.76% of the float (the number of shares available for trading by the public). This marks a 29.36% increase in short interest from the previous month. The short interest ratio (days to cover) is 3.6, indicating that it would take 3.6 days of the average trading volume of 579,867 shares to cover all short positions.Current Short Interest2,820,000 sharesPrevious Short Interest2,180,000 sharesChange Vs. Previous Month+29.36%Dollar Volume Sold Short$30.32 millionShort Interest Ratio3.6 Days to CoverLast Record DateJuly 31, 2025Outstanding Shares34,980,000 sharesShort Percent of Float9.76%Today's Trading Volume326,312 sharesAverage Trading Volume579,867 sharesToday's Volume Vs. Average56% Short Selling Delcath Systems? Sign up to receive the latest short interest report for Delcath Systems and its competitors with MarketBeat's FREE newsletter. Email Address Get Report View SMS TermsBy entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. 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Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartDCTH Short Interest Over TimeDCTH Days to Cover Over TimeDCTH Percentage of Float Shorted Over Time Delcath 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 7/31/20252,820,000 shares $30.32 million +29.4%9.8%3.6 $10.75 7/15/20252,180,000 shares $24.02 million +37.1%N/A3.3 $11.02 6/30/20251,590,000 shares $21.62 million +141.2%5.5%2.7 $13.60 6/15/2025659,200 shares $10.11 million -12.9%2.3%1.3 $15.34 5/31/2025757,200 shares $12.17 million -19.6%2.9%1.5 $16.07 5/15/2025941,600 shares $15.11 million -5.8%3.6%1.9 $16.05 4/30/20251,000,000 shares $12.04 million -3.9%N/A2.3 $12.04 4/15/20251,040,000 shares $11.86 million +20.7%4.0%2.4 $11.40 3/31/2025861,800 shares $10.97 million +7.0%3.3%1.9 $12.73 3/15/2025805,300 shares $10.13 million +14.9%3.1%1.9 $12.58 Get the Latest News and Ratings for DCTH and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Delcath Systems and its competitors with MarketBeat's FREE daily newsletter. 2/28/2025700,600 shares $9.93 million -20.5%2.7%1.7 $14.17 2/15/2025881,500 shares $14.35 million -10.7%3.4%2.2 $16.28 1/31/2025986,900 shares $15.40 million +5.3%N/A2.3 $15.60 1/15/2025937,100 shares $11.91 million -9.9%N/A2.2 $12.71 12/31/20241,040,000 shares $12.52 million -23.0%N/A2.7 $12.04 12/15/20241,350,000 shares $16.35 million -10.6%N/A3.6 $12.11 11/30/20241,510,000 shares $17.94 million +28.0%N/A4.3 $11.88 11/15/20241,180,000 shares $11.08 million +2.6%N/A3.1 $9.39 10/31/20241,150,000 shares $12.52 million -8.0%N/A3.5 $10.89 10/15/20241,250,000 shares $11.16 million +2.5%N/A4.1 $8.93 9/30/20241,220,000 shares $11.02 million -11.0%N/A4.4 $9.03 9/15/20241,370,000 shares $13.07 million -2.1%N/A5.1 $9.54 8/31/20241,400,000 shares $15.40 million -4.1%N/A5.2 $11.00 8/15/20241,460,000 shares $10.94 million -7.6%N/A6.3 $7.49 7/31/20241,580,000 shares $13.62 million -0.6%N/A5.6 $8.62 7/15/20241,590,000 shares $12.66 million +2.6%N/A5.9 $7.96 6/30/20241,550,000 shares $12.97 million +19.2%N/A5.8 $8.37 6/15/20241,300,000 shares $9.92 million +18.2%N/A4.5 $7.63 5/31/20241,100,000 shares $7.76 million +0.9%N/A4 $7.05 5/15/20241,090,000 shares $7.84 million +17.4%N/A4.1 $7.19 4/30/2024928,700 shares $4.83 million +13.1%N/A4.5 $5.20 4/15/2024821,200 shares $4.00 million -12.3%N/A3.9 $4.87 3/31/2024936,300 shares $4.47 million +4.2%N/A4.2 $4.77 3/15/2024898,900 shares $3.57 million +8.0%N/A3.8 $3.97 2/29/2024832,700 shares $3.47 million +2.2%N/A3.3 $4.17 2/15/2024814,700 shares $3.68 million +5.0%N/A3 $4.52 1/31/2024775,800 shares $3.72 million -1.6%N/A2.2 $4.79 1/15/2024788,200 shares $3.14 million -4.6%N/A2.2 $3.99 12/31/2023826,000 shares $3.44 million +11.2%N/A2.3 $4.16 12/15/2023742,900 shares $2.37 million -4.9%N/A2.1 $3.19Capital Gains Tax Strategies for Seniors (Ad)Capital gains taxes can take a bite out of your retirement income—unless you have a smart strategy. From holding investments longer to using tax-advantaged accounts and strategic loss offsetting, there are ways to reduce your exposure. SmartAsset outlines three capital gains tax strategies for seniors and offers a free tool to connect you with vetted fiduciary financial advisors who can help tailor these tactics to your situation.Click here to see the three strategies and get matched with a financial advisor today. 11/30/2023780,900 shares $2.15 million +9.6%N/A2.4 $2.75 11/15/2023712,700 shares $1.68 million -7.5%N/A1.9 $2.36 10/31/2023770,100 shares $2.43 million +0.2%N/A0.3 $3.15 10/15/2023768,700 shares $2.66 million -2.9%N/A0.3 $3.46 9/30/2023791,800 shares $3.21 million +6.3%N/A0.4 $4.05 9/15/2023744,900 shares $3.34 million -22.2%N/A0.3 $4.48 8/31/2023957,700 shares $4.40 million +32.9%N/A0.4 $4.59 8/15/2023720,500 shares $4.09 million +35.7%N/A0.4 $5.67 7/31/2023530,800 shares $2.32 million -18.3%N/A4.7 $4.38 7/15/2023649,700 shares $3.22 million +37.8%N/A9.7 $4.95 6/30/2023471,600 shares $2.75 million +4.7%N/A8.9 $5.83 6/15/2023450,400 shares $3.01 million -6.3%N/A7.2 $6.69 5/31/2023480,900 shares $3.83 million +5.1%N/A8.8 $7.96 5/15/2023457,600 shares $2.77 million +7.9%N/A10.3 $6.06 4/30/2023424,200 shares $2.43 million +13.8%N/A9.4 $5.73 4/15/2023372,800 shares $2.05 million +58.4%N/A8.3 $5.50 3/31/2023235,300 shares $1.35 million +4.7%N/A5.2 $5.75 3/15/2023224,800 shares $1.02 million +4.2%N/A7.8 $4.52 2/28/2023215,700 shares $1.07 million +5.2%N/A7.3 $4.96 2/15/2023205,100 shares $984.48 thousand +7.8%N/A7.1 $4.80 1/31/2023190,300 shares $709.82 thousand +8.1%N/A7 $3.73 1/15/2023176,000 shares $682.88 thousand +0.5%N/A7.5 $3.88 12/30/2022175,200 shares $630.72 thousand -6.6%N/A4.4 $3.60 12/15/2022187,600 shares $667.86 thousand +1.7%N/A4.9 $3.56 11/30/2022184,500 shares $525.83 thousand +10.7%N/A5.1 $2.85 11/15/2022166,600 shares $466.48 thousand +5.7%N/A4.7 $2.80 10/31/2022157,600 shares $453.89 thousand -7.4%N/A4.2 $2.88 10/15/2022170,100 shares $489.89 thousand -13.7%N/A4.9 $2.88 9/30/2022197,000 shares $630.40 thousand -4.7%N/A7.8 $3.20 9/15/2022206,800 shares $808.59 thousand +3.2%N/A9.5 $3.91 8/31/2022200,400 shares $848.69 thousand -5.8%N/A8.9 $4.24 8/15/2022212,800 shares $957.60 thousand -14.3%N/A7.4 $4.50 7/31/2022248,200 shares $1.03 million -12.5%N/A8.1 $4.17 7/15/2022283,800 shares $1.13 million -7.6%N/A9.1 $3.98 6/30/2022307,000 shares $1.22 million -3.0%N/A10.8 $3.99 6/15/2022316,600 shares $1.19 million +20.0%N/A11.1 $3.76 5/31/2022263,900 shares $1.22 million -12.7%N/A9 $4.61 5/15/2022302,200 shares $1.46 million -1.0%N/A11.5 $4.83 4/30/2022305,200 shares $1.84 million -3.5%N/A13.3 $6.04 4/15/2022316,300 shares $2.03 million -0.7%N/A13.2 $6.41 3/31/2022318,600 shares $2.04 million -2.8%N/A12 $6.40 3/15/2022327,600 shares $2.01 million -7.4%N/A8.9 $6.13 2/28/2022353,800 shares $2.29 million -5.6%N/A6.8 $6.47 2/15/2022374,600 shares $2.76 million -5.9%N/A4.1 $7.37 1/31/2022398,100 shares $2.75 million -9.8%N/A4.3 $6.90 1/15/2022441,400 shares $3.10 million +7.8%N/A4.7 $7.02 12/31/2021409,400 shares $3.17 million +4.8%N/A4.5 $7.75 12/15/2021390,700 shares $3.22 million +56.7%N/A4.8 $8.25 11/30/2021249,300 shares $2.48 million +0.3%N/A3.4 $9.93 11/15/2021248,500 shares $2.61 million -8.0%N/A10.7 $10.50Capital Gains Tax Strategies for Seniors (Ad)Capital gains taxes can take a bite out of your retirement income—unless you have a smart strategy. From holding investments longer to using tax-advantaged accounts and strategic loss offsetting, there are ways to reduce your exposure. SmartAsset outlines three capital gains tax strategies for seniors and offers a free tool to connect you with vetted fiduciary financial advisors who can help tailor these tactics to your situation.Click here to see the three strategies and get matched with a financial advisor today. 10/29/2021270,000 shares $3.00 million -9.3%N/A9.4 $11.11 10/15/2021297,800 shares $2.80 million -18.4%N/A10.3 $9.41 9/30/2021364,800 shares $3.81 million -7.3%N/A10.2 $10.44 9/15/2021393,300 shares $3.65 million +0.4%N/A8.3 $9.29 8/31/2021391,800 shares $3.92 million -11.5%N/A7.7 $10.00 8/13/2021442,800 shares $4.06 million -2.1%N/A8 $9.16 7/30/2021452,400 shares $4.61 million -2.7%N/A7.6 $10.20 7/15/2021464,700 shares $4.60 million +3.8%N/A6.6 $9.89 6/30/2021447,500 shares $5.64 million -6.0%N/A5.4 $12.61 6/15/2021475,800 shares $5.37 million -1.5%7.5%2 $11.29 5/28/2021482,900 shares $5.17 million +2.3%7.6%1.9 $10.70 5/14/2021472,000 shares $4.60 million +16.3%7.4%1.8 $9.74 4/30/2021405,800 shares $4.79 million +12.4%6.6%1.5 $11.80 4/15/2021361,100 shares $4.73 million -13.5%5.9%1.3 $13.10 3/31/2021417,500 shares $6.80 million +6.0%7.5%1.5 $16.28 3/15/2021393,900 shares $7.44 million +6.2%7.1%3.3 $18.90 2/26/2021370,800 shares $6.79 million -25.4%6.7%2.7 $18.30 2/12/2021497,200 shares $11.53 million +21.4%9.4%3.4 $23.18 1/29/2021409,700 shares $6.45 million +5.1%7.7%3.1 $15.75 1/15/2021390,000 shares $6.64 million No Change7.4%3.5 $17.02 DCTH Short Interest - Frequently Asked Questions What is Delcath Systems' current short interest? Short interest is the volume of Delcath Systems shares that have been sold short but have not yet been covered or closed out. As of July 31st, investors have sold 2,820,000 shares of DCTH short. 9.76% of Delcath Systems' shares are currently sold short. Learn More on Delcath Systems' current short interest. What is a good short interest ratio for Delcath 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. DCTH shares currently have a short interest ratio of 4.0. Learn More on Delcath Systems's short interest ratio. Which institutional investors are shorting Delcath Systems? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Delcath Systems: Group One Trading LLC, and Simplex Trading LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for Delcath Systems? 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. 9.76% of Delcath Systems' floating shares are currently sold short. Is Delcath Systems' short interest increasing or decreasing? Delcath Systems saw a increase in short interest in July. As of July 31st, there was short interest totaling 2,820,000 shares, an increase of 29.4% from the previous total of 2,180,000 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 Delcath Systems' short interest compare to its competitors? 9.76% of Delcath Systems' shares are currently sold short. Here is how the short interest of companies in the industry of "medical equipment" compare to Delcath Systems: NovoCure Limited (5.27%), Establishment Labs Holdings Inc. (18.48%), Cadre Holdings, Inc. (7.73%), BioLife Solutions, Inc. (8.45%), Pulse Biosciences, Inc (19.44%), MiMedx Group, Inc (3.44%), InMode Ltd. (5.83%), iRadimed Corporation (1.68%), Embecta Corp. (5.73%), Tandem Diabetes Care, Inc. (13.20%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($70.87 billion), Invesco QQQ ($30.12 billion), iShares Russell 2000 ETF ($19.85 billion), iShares 20+ Year Treasury Bond ETF ($10.34 billion), Strategy Inc ($8.98 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($7.61 billion), SPDR S&P Biotech ETF ($6.81 billion), Invesco S&P 500 Equal Weight ETF ($6.14 billion), Palo Alto Networks, Inc. ($5.97 billion), and Super Micro Computer, Inc. ($5.28 billion). View all of the most shorted stocks. What does it mean to sell short Delcath Systems stock? Short selling DCTH is an investing strategy that aims to generate trading profit from Delcath Systems as its price is falling. DCTH shares are trading down $0.18 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 Delcath Systems? A short squeeze for Delcath Systems 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 DCTH, which in turn drives the price of the stock up even further. How often is Delcath 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 DCTH, twice per month. The most recent reporting period available is July, 31 2025. More Short Interest Resources from MarketBeat Related Companies NVCR Short Interest ESTA Short Interest CDRE Short Interest BLFS Short Interest PLSE Short Interest MDXG Short Interest INMD Short Interest IRMD Short Interest EMBC Short Interest TNDM Short Interest Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:DCTH) was last updated on 8/28/2025 by MarketBeat.com Staff From Our PartnersINVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting OffRight now, we’re witnessing a monumental shift in the world.Traders Agency | SponsoredElon’s BIGGEST warning yet?Tesla's About to Prove Everyone Wrong... Again Back in 2018, when Jeff Brown told everyone to buy Tesla… ...Brownstone Research | SponsoredEveryone’s watching Nvidia right now. 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