Cytosorbents (CTSO) Short Interest Ratio & Short Volume $1.01 -0.11 (-9.82%) As of 04/30/2025 04:00 PM Eastern Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Cytosorbents Short Interest DataCytosorbents (CTSO) has a short interest of 1.62 million shares, representing 3.17% of the float (the number of shares available for trading by the public). This marks a -7.43% decrease in short interest from the previous month. The short interest ratio (days to cover) is 16.2, indicating that it would take 16.2 days of the average trading volume of 142,828 shares to cover all short positions.Current Short Interest1,620,000 sharesPrevious Short Interest1,750,000 sharesChange Vs. Previous Month-7.43%Dollar Volume Sold Short$1.64 millionShort Interest Ratio16.2 Days to CoverLast Record DateApril 15, 2025Outstanding Shares62,500,000 sharesShort Percent of Float3.17%Today's Trading Volume176,900 sharesAverage Trading Volume142,828 sharesToday's Volume Vs. Average124% Short Selling Cytosorbents? Sign up to receive the latest short interest report for Cytosorbents and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartCTSO Short Interest Over TimeCTSO Days to Cover Over TimeCTSO Percentage of Float Shorted Over Time Cytosorbents Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 4/15/20251,620,000 shares $1.64 million -7.4%3.2%16.2 $1.01 3/31/20251,750,000 shares $1.75 million -4.9%3.4%13 $1.00 3/15/20251,840,000 shares $2.02 million -0.5%3.6%7.5 $1.10 2/28/20251,850,000 shares $1.96 million -5.1%3.6%7.1 $1.06 2/15/20251,950,000 shares $2.54 million +1.0%3.8%7.5 $1.30 1/31/20251,930,000 shares $1.94 million +5.5%N/A7.5 $1.01 1/15/20251,830,000 shares $1.98 million +26.2%N/A7 $1.08 12/31/20241,450,000 shares $1.32 million +3.6%N/A5.7 $0.91 12/15/20241,400,000 shares $1.41 million +2.2%N/A10.7 $1.01 11/30/20241,370,000 shares $1.33 million +5.4%N/A11.1 $0.97 Get the Latest News and Ratings for CTSO and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Cytosorbents and its competitors with MarketBeat's FREE daily newsletter. 11/15/20241,300,000 shares $1.16 million -4.4%N/A11.3 $0.90 10/31/20241,360,000 shares $1.37 million +0.7%N/A12.7 $1.01 10/15/20241,350,000 shares $1.47 million +1.5%N/A14.6 $1.09 9/30/20241,330,000 shares $2.00 million -5.7%N/A14.5 $1.50 9/15/20241,410,000 shares $1.52 million +1.4%N/A13.1 $1.08 8/31/20241,390,000 shares $1.46 million No ChangeN/A13.9 $1.05 8/15/20241,390,000 shares $1.42 million -2.1%N/A14.1 $1.02 7/31/20241,420,000 shares $1.70 million -2.1%N/A13.4 $1.20 7/15/20241,450,000 shares $1.55 million -2.0%N/A13.1 $1.07 6/30/20241,480,000 shares $1.04 million +0.7%N/A13.8 $0.70 6/15/20241,470,000 shares $1.24 million -3.3%N/A15.6 $0.84 5/31/20241,520,000 shares $1.37 million +4.1%N/A16.1 $0.90 5/15/20241,460,000 shares $1.23 million -5.8%N/A14.3 $0.84 4/30/20241,550,000 shares $1.26 million No ChangeN/A15.2 $0.81 4/15/20241,550,000 shares $1.34 million -4.3%N/A14.8 $0.87 3/31/20241,620,000 shares $1.54 million -3.0%N/A10.8 $0.95 3/15/20241,670,000 shares $1.47 million -2.9%N/A5.7 $0.88 2/29/20241,720,000 shares $1.65 million -1.7%N/A5 $0.96 2/15/20241,750,000 shares $1.77 million -2.8%N/A5 $1.01 1/31/20241,800,000 shares $1.82 million -17.1%N/A5 $1.01 1/15/20242,170,000 shares $2.16 million +7.4%N/A6.2 $0.99 12/31/20232,020,000 shares $2.24 million +8.6%N/A6.4 $1.11 12/15/20231,860,000 shares $3.18 million -0.5%N/A11.9 $1.71 11/30/20231,870,000 shares $2.24 million +11.3%4.9%18.8 $1.20 11/15/20231,680,000 shares $1.97 million +3.1%4.4%19 $1.17 10/31/20231,630,000 shares $2.51 million +0.6%4.3%23.5 $1.54 10/15/20231,620,000 shares $2.77 million +21.8%4.2%23.7 $1.71 9/30/20231,330,000 shares $2.50 million +9.0%3.5%18.3 $1.88 9/15/20231,220,000 shares $2.42 million +19.6%3.2%18.5 $1.98 8/31/20231,020,000 shares $2.63 million +12.4%2.7%16.8 $2.58Trump announcement boosts “next Bitcoin” (Ad)President Trump just made his first big crypto move ... Announcing the creation of a national strategic reserve for Bitcoin and Ethereum. But there's something else going on here …To learn more about this next Bitcoin — click here before another proclamation by Trump sends the pr 8/15/2023907,700 shares $2.53 million +16.8%2.4%15.7 $2.79 7/31/2023777,300 shares $2.77 million 0.0%2.0%12 $3.57 7/15/2023777,400 shares $2.72 million -10.2%2.0%11.3 $3.50 6/30/2023866,100 shares $3.11 million +1.7%2.3%13.6 $3.59 6/15/2023851,500 shares $3.04 million +5.0%2.2%14.5 $3.57 5/31/2023810,900 shares $2.41 million +1.3%2.1%13.3 $2.97 5/15/2023800,600 shares $2.65 million +19.7%2.1%11 $3.31 4/30/2023669,100 shares $1.64 million +14.1%1.8%8 $2.45 4/15/2023586,200 shares $1.84 million -9.0%1.5%6.4 $3.14 3/31/2023644,000 shares $2.17 million -9.7%1.7%6.8 $3.37 3/15/2023712,900 shares $2.28 million +6.9%1.9%5.7 $3.20 2/28/2023666,800 shares $2.05 million +1.4%1.7%4.9 $3.08 2/15/2023657,600 shares $2.29 million -1.2%1.7%5.1 $3.48 1/31/2023665,300 shares $1.90 million +22.5%1.7%4.9 $2.86 1/15/2023543,000 shares $1.23 million +3.4%1.4%3 $2.27 12/30/2022525,000 shares $813,750.00 -16.1%1.4%3 $1.55 12/15/2022625,900 shares $726,044.00 -10.3%1.6%3.8 $1.16 11/30/2022697,500 shares $976,500.00 +2.7%1.8%4.3 $1.40 11/15/2022679,000 shares $1.04 million +33.1%1.8%4 $1.53 10/31/2022510,200 shares $954,074.00 -2.6%1.3%2.6 $1.87 10/15/2022523,900 shares $833,001.00 -10.4%1.4%3.9 $1.59 9/30/2022584,400 shares $794,784.00 -23.6%1.5%4.3 $1.36 9/15/2022765,200 shares $1.47 million +5.5%2.0%3.6 $1.92 8/31/2022725,500 shares $1.38 million +4.5%1.9%3.1 $1.90 8/15/2022694,100 shares $1.32 million -2.6%1.8%2.6 $1.90 7/31/2022712,500 shares $1.62 million -6.6%1.9%2.7 $2.28 7/15/2022762,500 shares $1.70 million -11.8%2.0%2.6 $2.23 6/30/2022864,300 shares $1.89 million -55.0%2.3%2.8 $2.19 6/15/20221,920,000 shares $3.90 million -1.0%7.0%6.1 $2.03 5/31/20221,940,000 shares $3.74 million -19.5%5.1%8.5 $1.93 5/15/20222,410,000 shares $5.42 million +17.6%6.3%11.6 $2.25 4/30/20222,050,000 shares $4.31 million +27.3%5.3%10.7 $2.10 4/15/20221,610,000 shares $4.62 million -12.0%4.2%9 $2.87 3/31/20221,830,000 shares $5.84 million +0.6%4.8%9.6 $3.19 3/15/20221,820,000 shares $5.35 million +18.2%4.7%8.4 $2.94 2/28/20221,540,000 shares $5.96 million +10.8%4.0%6.7 $3.87 2/15/20221,390,000 shares $5.35 million +9.5%3.6%6 $3.85 1/31/20221,270,000 shares $4.72 million -5.9%3.3%5 $3.72 1/15/20221,350,000 shares $4.35 million +3.9%3.5%5.4 $3.22 12/31/20211,300,000 shares $5.45 million -5.1%3.4%4.9 $4.19 12/15/20211,370,000 shares $6.07 million +2.2%3.6%5.3 $4.43 11/30/20211,340,000 shares $6.59 million -1.5%3.5%5.5 $4.92 11/15/20211,360,000 shares $8.34 million +3.0%3.5%5.2 $6.13 10/29/20211,320,000 shares $7.77 million -13.2%3.4%4.7 $5.89 10/15/20211,520,000 shares $8.91 million -20.0%4.0%5.3 $5.86 9/30/20211,900,000 shares $15.43 million -2.6%5.0%7.8 $8.12 9/15/20211,950,000 shares $15.99 million -0.5%5.1%6.9 $8.20 8/31/20211,960,000 shares $18.76 million +1.0%5.1%6.9 $9.57 8/13/20211,940,000 shares $15.19 million -9.4%5.1%7.3 $7.83 7/30/20212,140,000 shares $16.29 million -2.7%5.6%8.9 $7.61Trump announcement boosts “next Bitcoin” (Ad)President Trump just made his first big crypto move ... Announcing the creation of a national strategic reserve for Bitcoin and Ethereum. But there's something else going on here …To learn more about this next Bitcoin — click here before another proclamation by Trump sends the pr 7/15/20212,200,000 shares $16.87 million +18.3%5.8%8.8 $7.67 6/30/20211,860,000 shares $14.04 million -11.9%4.9%7.2 $7.55 6/15/20212,110,000 shares $17.39 million +1.4%5.5%9.8 $8.24 5/28/20212,080,000 shares $16.83 million -7.1%5.4%9 $8.09 5/14/20212,240,000 shares $18.21 million +0.5%5.9%8.6 $8.13 4/30/20212,230,000 shares $20.29 million +6.7%5.8%8.2 $9.10 4/15/20212,090,000 shares $19.33 million +0.5%5.5%6.6 $9.25 3/31/20212,080,000 shares $17.49 million -16.1%5.4%6 $8.41 3/15/20212,480,000 shares $21.55 million +2.1%6.5%6.9 $8.69 2/26/20212,430,000 shares $23.60 million -0.4%6.4%7 $9.71 2/12/20212,440,000 shares $27.74 million -16.4%6.4%7.3 $11.37 1/29/20212,920,000 shares $26.69 million +0.3%7.6%8.7 $9.14 1/15/20212,910,000 shares $25.67 million No Change7.6%10 $8.82 CTSO Short Interest - Frequently Asked Questions What is Cytosorbents' current short interest? Short interest is the volume of Cytosorbents shares that have been sold short but have not yet been covered or closed out. As of April 15th, investors have sold 1,620,000 shares of CTSO short. 3.17% of Cytosorbents' shares are currently sold short. Learn More on Cytosorbents' current short interest. What is a good short interest ratio for Cytosorbents? 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. CTSO shares currently have a short interest ratio of 16.0. Learn More on Cytosorbents's short interest ratio. Which institutional investors are shorting Cytosorbents? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Cytosorbents: Concourse Financial Group Securities Inc.. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for Cytosorbents? 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. 3.17% of Cytosorbents' floating shares are currently sold short. Is Cytosorbents' short interest increasing or decreasing? Cytosorbents saw a decrease in short interest in April. As of April 15th, there was short interest totaling 1,620,000 shares, a decrease of 7.4% from the previous total of 1,750,000 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 Cytosorbents' short interest compare to its competitors? 3.17% of Cytosorbents' shares are currently sold short. Here is how the short interest of companies in the industry of "medical equipment" compare to Cytosorbents: AVITA Medical, Inc. (11.32%), ZimVie Inc. (1.67%), Pro-Dex, Inc. (4.82%), Nevro Corp. (4.66%), Pulmonx Co. (3.38%), Nyxoah S.A. (1.29%), CVRx, Inc. (7.78%), Inogen, Inc. (3.86%), Alpha Tau Medical Ltd. (0.19%), TriSalus Life Sciences, Inc. (0.20%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Invesco QQQ ($21.71 billion), iShares 20+ Year Treasury Bond ETF ($9.48 billion), Strategy Incorporated ($8.92 billion), Charter Communications, Inc. ($3.86 billion), Apollo Global Management, Inc. ($3.86 billion), Capital One Financial Co. ($3.72 billion), Super Micro Computer, Inc. ($3.47 billion), AppLovin Co. ($2.64 billion), VanEck Semiconductor ETF ($2.46 billion), and The Kroger Co. ($2.33 billion). View all of the most shorted stocks. What does it mean to sell short Cytosorbents stock? Short selling CTSO is an investing strategy that aims to generate trading profit from Cytosorbents as its price is falling. CTSO shares are trading down $0.11 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 Cytosorbents? A short squeeze for Cytosorbents 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 CTSO, which in turn drives the price of the stock up even further. How often is Cytosorbents' 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 CTSO, twice per month. The most recent reporting period available is April, 15 2025. More Short Interest Resources from MarketBeat Related Companies RCEL Short Interest ZIMV Short Interest PDEX Short Interest NVRO Short Interest LUNG Short Interest NYXH Short Interest CVRX Short Interest INGN Short Interest DRTS Short Interest TLSI 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:CTSO) was last updated on 5/1/2025 by MarketBeat.com Staff From Our PartnersHow to invest in Elon Musk’s Optimus before its launchElon Musk is set to completely take over the AI industry with Optimus… A breakthrough AI-powered robot that El...InvestorPlace | SponsoredIs he more powerful than Trump? Is there anybody more powerful than Donald Trump right now? 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