Cytosorbents (CTSO) Stock Chart & Stock Price History $0.91 +0.04 (+4.82%) Closing price 04:00 PM EasternExtended Trading$0.88 -0.03 (-3.63%) As of 07:42 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 Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Cytosorbents Stock Price Performance The Cytosorbents (CTSO) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 24.08%, with a year-to-date return of 0.12%. In the past month, the stock has decreased 12.39%, reflecting recent market activity. As of the latest close, Cytosorbents traded at $0.87 with a market cap of $54.42 million and volume of 4.61 million shares. Five years ago, the stock traded at $9.41, representing a 90.32% decrease over that period. At the time, it had a market cap of $340.75 million and a volume of 369,559 shares. Receive CTSO Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Cytosorbents and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance-0.97%1 Month Performance-12.39%3 Month Performance-3.07%Year-To-Date Performance+0.12%1 Year Performance-24.08%5 Year Performance-90.32% CTSO Stock Chart for Monday, August, 4, 2025 CTSO Chart by TradingView Cytosorbents Stock Price History Daily Weekly Monthly Yearly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 3 Year 5 Year Time Frame Start Date End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization08/04/2025$0.87$0.91+4.82%$0.91$0.84218,309 shs$57.04 million08/01/2025$0.85$0.87+2.26%$0.89$0.774.61 million shs$54.42 million07/31/2025$0.92$0.85-7.61%$0.95$0.85146,398 shs$53.22 million07/30/2025$0.91$0.92+1.10%$0.98$0.9255,702 shs$57.60 million07/29/2025$0.94$0.91-3.40%$1.00$0.9149,258 shs$56.98 million07/28/2025$0.94$0.94-0.17%$1.01$0.9464,623 shs$58.98 million07/25/2025$1.00$0.94-5.64%$1.04$0.94143,501 shs$59.08 million07/24/2025$1.02$1.00-1.96%$1.06$1.0033,076 shs$62.61 million07/23/2025$1.00$1.02+2.00%$1.06$1.0084,565 shs$63.86 million07/22/2025$1.04$1.00-3.85%$1.08$1.0082,351 shs$62.61 million 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. 07/21/2025$1.03$1.04+0.97%$1.05$1.0123,627 shs$65.11 million07/18/2025$0.99$1.03+4.04%$1.06$1.0122,379 shs$64.49 million07/17/2025$1.04$0.99-4.81%$1.10$0.9998,055 shs$61.98 million07/16/2025$1.03$1.04+0.97%$1.07$1.0418,901 shs$65.11 million07/15/2025$1.05$1.03-1.90%$1.04$1.0240,411 shs$64.49 million07/14/2025$1.06$1.05-0.94%$1.07$1.0432,329 shs$65.74 million07/11/2025$1.14$1.06-7.02%$1.16$1.0546,359 shs$66.37 million07/10/2025$1.11$1.14+2.70%$1.14$1.09110,452 shs$71.38 million07/09/2025$1.05$1.11+5.71%$1.13$1.0744,379 shs$69.50 million07/08/2025$1.03$1.05+1.94%$1.08$1.0372,905 shs$65.74 million07/07/2025$1.04$1.03-0.96%$1.16$1.03119,178 shs$64.49 million07/04/2025$1.04$1.04$1.13$1.00201,856 shs$65.11 million07/03/2025$1.00$1.04+4.00%$1.13$1.00201,856 shs$65.11 million Related Companies SMTI Stock Chart SKIN Stock Chart BWAY Stock Chart CVRX Stock Chart MGRM Stock Chart PTHL Stock Chart CV Stock Chart INGN Stock Chart SGHT Stock Chart TLSI Stock Chart Receive CTSO Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Cytosorbents and its competitors with MarketBeat's FREE daily newsletter. 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