Quantum-Si (QSI) Stock Chart & Stock Price History $1.22 +0.05 (+4.27%) As of 04/24/2025 04:00 PM Eastern Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Quantum-Si Stock Price Performance 5 Day Performance+6.09%1 Month Performance-13.48%3 Month Performance-46.96%6 Month Performance+63.76%Year-To-Date Performance-54.81%1 Year Performance-24.22% Receive QSI Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Quantum-Si and its competitors with MarketBeat's FREE daily newsletter. Email Address QSI Stock Chart for Friday, April, 25, 2025 QSI Chart by TradingView Quantum-Si Stock Price History Daily Weekly Monthly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year Time Frame * Start Date * End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization04/24/2025$1.17$1.22+4.27%$1.24$1.182.80 million shs$223.43 million04/23/2025$1.13$1.17+3.54%$1.24$1.153.39 million shs$214.27 million04/22/2025$1.09$1.13+3.67%$1.15$1.101.83 million shs$206.95 million04/21/2025$1.15$1.09-5.22%$1.13$1.081.71 million shs$199.62 million04/18/2025$1.15$1.15$1.18$1.121.63 million shs$210.61 million04/17/2025$1.16$1.15-0.86%$1.18$1.121.63 million shs$210.61 million04/16/2025$1.23$1.16-5.69%$1.22$1.112.14 million shs$212.44 million04/15/2025$1.23$1.23$1.26$1.211.74 million shs$225.26 million04/14/2025$1.25$1.23-1.60%$1.31$1.213.07 million shs$225.26 million04/11/2025$1.17$1.25+6.84%$1.25$1.162.25 million shs$228.93 million Get the Latest News and Ratings for QSI and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Quantum-Si and its competitors with MarketBeat's FREE daily newsletter. 04/10/2025$1.23$1.17-4.88%$1.21$1.132.94 million shs$214.27 million04/09/2025$1.08$1.23+13.89%$1.27$1.055.54 million shs$225.26 million04/09/2025$1.08$1.23+13.89%$1.27$1.055.54 million shs$225.26 million04/08/2025$1.14$1.08-5.26%$1.22$1.064.48 million shs$197.79 million04/08/2025$1.14$1.08-5.26%$1.22$1.064.48 million shs$197.79 million04/07/2025$1.13$1.14+0.88%$1.18$1.024.22 million shs$208.78 million04/04/2025$1.16$1.13-2.59%$1.13$1.034.90 million shs$206.95 million04/03/2025$1.23$1.16-5.69%$1.19$1.153.26 million shs$212.44 million04/02/2025$1.20$1.23+2.50%$1.25$1.162.88 million shs$225.26 million04/01/2025$1.20$1.20$1.22$1.153.25 million shs$219.77 million03/31/2025$1.27$1.20-5.51%$1.24$1.194.15 million shs$219.77 million03/28/2025$1.31$1.27-3.05%$1.33$1.253.16 million shs$232.59 million03/27/2025$1.39$1.31-5.76%$1.39$1.303.89 million shs$239.91 million03/26/2025$1.41$1.39-1.42%$1.46$1.364.01 million shs$254.57 million03/25/2025$1.48$1.41-4.73%$1.47$1.414.64 million shs$258.23 million03/24/2025$1.46$1.48+1.72%$1.54$1.437.17 million shs$271.05 million Related Companies TRNS Stock Chart CTKB Stock Chart LAB Stock Chart EYPT Stock Chart SENS Stock Chart ALNT Stock Chart AEHR Stock Chart QTRX Stock Chart MASS Stock Chart FEIM Stock Chart Receive QSI Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Quantum-Si and its competitors with MarketBeat's FREE daily newsletter. 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