Cytek Biosciences (CTKB) Stock Chart & Stock Price History $4.15 +0.14 (+3.49%) Closing price 08/22/2025 04:00 PM EasternExtended Trading$4.14 -0.01 (-0.12%) As of 08/22/2025 04:10 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 ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Cytek Biosciences Stock Price Performance The Cytek Biosciences (CTKB) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 26.55%, with a year-to-date return of -36.06%. In the past month, the stock has increased 23.15%, reflecting recent market activity. As of the latest close, Cytek Biosciences traded at $4.15 with a market cap of $527.96 million and volume of 782,501 shares. Receive CTKB Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Cytek Biosciences and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance+2.22%1 Month Performance+23.15%3 Month Performance+71.49%Year-To-Date Performance-36.06%1 Year Performance-26.55% CTKB Stock Chart for Saturday, August, 23, 2025 CTKB Chart by TradingView Cytek Biosciences 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$4.01$4.15+3.49%$4.28$4.04782,501 shs$527.96 million08/21/2025$4.00$4.01+0.25%$4.09$3.91567,062 shs$510.15 million08/20/2025$4.04$4.00-0.99%$4.08$3.98544,791 shs$508.90 million08/19/2025$4.06$4.04-0.49%$4.15$4.00691,690 shs$513.97 million08/18/2025$4.01$4.06+1.25%$4.17$3.94493,217 shs$516.51 million08/15/2025$4.08$4.01-1.72%$4.14$3.99729,334 shs$510.15 million08/14/2025$4.17$4.08-2.16%$4.13$3.991.03 million shs$519.07 million08/13/2025$4.03$4.17+3.47%$4.19$4.041.35 million shs$530.51 million08/12/2025$3.79$4.03+6.33%$4.09$3.831.31 million shs$512.70 million08/11/2025$4.03$3.79-5.96%$4.02$3.681.67 million shs$482.18 million Get the Latest News and Ratings for CTKB and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Cytek Biosciences and its competitors with MarketBeat's FREE daily newsletter. 08/08/2025$4.11$4.03-1.95%$4.10$3.901.54 million shs$510.44 million08/07/2025$3.89$4.11+5.66%$4.19$3.801.45 million shs$520.57 million08/06/2025$3.88$3.89+0.26%$3.98$3.811.57 million shs$492.71 million08/05/2025$3.84$3.88+1.04%$3.94$3.801.11 million shs$491.44 million08/04/2025$3.64$3.84+5.49%$3.86$3.621.28 million shs$461.04 million08/01/2025$3.60$3.64+1.11%$3.67$3.441.54 million shs$461.04 million07/31/2025$3.55$3.60+1.41%$3.61$3.461.53 million shs$455.98 million07/30/2025$3.60$3.55-1.39%$3.69$3.461.38 million shs$449.64 million07/29/2025$3.75$3.60-4.00%$3.78$3.60797,414 shs$455.97 million07/28/2025$3.69$3.75+1.63%$3.78$3.661.14 million shs$474.98 million07/25/2025$3.33$3.69+10.81%$3.71$3.381.60 million shs$467.38 million07/24/2025$3.37$3.33-1.19%$3.39$3.20705,753 shs$421.78 million07/23/2025$3.25$3.37+3.69%$3.44$3.26780,585 shs$426.84 million07/22/2025$3.10$3.25+4.84%$3.26$3.09612,773 shs$411.65 million Related Companies 10x Genomics Stock Price Chart Eyepoint Pharmaceuticals Stock Price Chart Transcat Stock Price Chart Allient Stock Price Chart Aehr Test Systems Stock Price Chart Standard BioTools Stock Price Chart Senseonics Stock Price Chart Frequency Electronics Stock Price Chart 908 Devices Stock Price Chart Quantum-Si Stock Price Chart Receive CTKB Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Cytek Biosciences and its competitors with MarketBeat's FREE daily newsletter. 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