Cytosorbents (CTSO) Stock Chart & Stock Price History $0.91 +0.07 (+8.19%) Closing price 08/22/2025 04:00 PM EasternExtended Trading$0.91 0.00 (-0.34%) As of 08/22/2025 05:35 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 15.45%, with a year-to-date return of 0.34%. In the past month, the stock has decreased 3.23%, reflecting recent market activity. As of the latest close, Cytosorbents traded at $0.91 with a market cap of $57.31 million and volume of 349,614 shares. Five years ago, the stock traded at $8.52, representing a 89.28% decrease over that period. At the time, it had a market cap of $363.82 million and a volume of 300,371 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+2.15%1 Month Performance-3.23%3 Month Performance+8.06%Year-To-Date Performance+0.34%1 Year Performance-15.45%5 Year Performance-89.28% CTSO Stock Chart for Monday, August, 25, 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 Capitalization08/22/2025$0.84$0.91+8.19%$0.99$0.88349,614 shs$57.31 million08/21/2025$0.89$0.84-5.58%$0.93$0.83295,136 shs$52.97 million08/20/2025$1.08$0.89-17.23%$1.01$0.88688,906 shs$56.10 million08/19/2025$1.10$1.08-1.82%$1.12$1.0737,808 shs$67.78 million08/18/2025$1.16$1.10-5.17%$1.19$1.0990,231 shs$69.04 million08/15/2025$1.14$1.16+1.75%$1.16$1.1239,034 shs$72.80 million08/14/2025$1.08$1.14+5.56%$1.14$1.0377,880 shs$67.78 million08/13/2025$1.06$1.08+1.89%$1.10$1.0451,271 shs$67.78 million08/12/2025$1.20$1.06-11.67%$1.18$1.06170,573 shs$66.53 million08/11/2025$1.00$1.20+20.00%$1.22$1.01315,223 shs$75.13 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. 08/08/2025$0.89$1.00+11.96%$1.01$0.9198,407 shs$62.61 million08/07/2025$0.90$0.89-0.98%$0.93$0.8979,585 shs$55.92 million08/06/2025$0.92$0.90-1.42%$0.94$0.8871,844 shs$56.47 million08/05/2025$0.91$0.92+0.43%$0.94$0.8751,981 shs$57.29 million08/04/2025$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 million Related Companies NPCE Stock Chart DRTS Stock Chart TCMD Stock Chart SKIN Stock Chart CATX Stock Chart SMTI Stock Chart NNOX Stock Chart BWAY Stock Chart OM Stock Chart STIM 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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