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Cytosorbents (CTSO) Stock Chart & Stock Price History

Cytosorbents logo
$4.91 -0.41 (-7.71%)
Closing price 09/23/2026 03:58 PM Eastern
Extended Trading
$5.50 +0.59 (+12.02%)
As of 06:55 AM 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 Massive. Learn more.

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 74.24%, with a year-to-date return of -61.59%. In the past month, the stock has decreased 33.68%, reflecting recent market activity.

As of the latest close, Cytosorbents traded at $4.91 with a market cap of $15.47 million and volume of 6,107 shares. Five years ago, the stock traded at a split-adjusted price of $163.00, representing a 96.99% decrease over that period. At the time, it had a market cap of $353.46 million and a volume of 4,400 shares.

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5 Day
Performance
-14.61%
1 Month
Performance
-33.68%
3 Month
Performance
-47.43%
Year-To-Date
Performance
-61.59%
1 Year
Performance
-74.24%
5 Year
Performance
-96.99%

CTSO Stock Chart for Thursday, September, 24, 2026

Cytosorbents Stock Price History

DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization
09/23/2026$5.32$4.91
-7.71%
$5.36$4.906,107 shs$15.47 million
09/22/2026$5.51$5.32
-3.45%
$5.59$5.316,350 shs$16.76 million
09/21/2026$5.75$5.51
-4.17%
$5.79$5.1614,274 shs$17.36 million
09/18/2026$5.76$5.75
-0.17%
$6.00$5.5011,771 shs$18.11 million
09/17/2026$5.73$5.76
+0.52%
$5.96$5.753,067 shs$18.14 million
09/16/2026$6.06$5.73
-5.45%
$6.11$5.564,907 shs$18.06 million
09/15/2026$5.91$6.06
+2.54%
$6.24$6.0011,997 shs$19.09 million
09/14/2026$6.41$5.91
-7.80%
$6.34$5.139,356 shs$18.62 million
09/11/2026$6.37$6.41
+0.63%
$6.62$6.3212,092 shs$20.19 million
09/10/2026$6.33$6.37
+0.63%
$6.74$6.2514,387 shs$20.07 million
09/09/2026$6.85$6.33
-7.59%
$6.98$6.1136,844 shs$398.92 million
09/08/2026$7.00$6.85
-2.17%
$7.44$6.7518,126 shs$431.69 million
09/07/2026$7.00$7.00$7.39$6.7321,943 shs$22.06 million
09/04/2026$7.00$7.00
+0.03%
$7.39$6.7321,943 shs$22 million
09/03/2026$7.68$7.00
-8.81%
$8.12$6.8038,150 shs$22.00 million
09/02/2026$6.76$7.68
+13.55%
$9.43$6.66286,886 shs$24.12 million
09/01/2026$6.82$6.76
-0.88%
$7.00$6.643,138 shs$21.24 million
08/31/2026$6.71$6.82
+1.61%
$6.88$6.235,580 shs$21.43 million
08/28/2026$6.81$6.71
-1.41%
$7.50$6.405,679 shs$21.09 million
08/27/2026$7.20$6.81
-5.44%
$7.50$6.805,417 shs$21.39 million
08/26/2026$7.11$7.20
+1.32%
$7.51$7.021,313 shs$22.62 million
08/25/2026$7.40$7.11
-4.02%
$7.80$7.006,154 shs$22.33 million
08/24/2026$7.40$7.40
+0.05%
$7.62$6.807,910 shs$23.26 million

This page (NASDAQ:CTSO) was last updated on 9/23/2026 by MarketBeat.com Staff.
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