Quantum-Si (QSIAW) Stock Chart & Stock Price History $0.71 +0.06 (+8.92%) As of 07/3/2025 12:58 PM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Chart Stock AnalysisChartCompetitorsSEC FilingsShort InterestTrendsBuy This Stock Quantum-Si Stock Price Performance The Quantum-Si (QSIAW) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 384.93%, with a year-to-date return of -43.36%. In the past month, the stock has decreased 0.70%, reflecting recent market activity. As of the latest close, Quantum-Si traded at $0.71 with a market cap of and volume of 11,254 shares. Receive QSIAW 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 5 Day Performance+8.76%1 Month Performance-0.70%3 Month Performance+105.22%Year-To-Date Performance-43.36%1 Year Performance+384.93% QSIAW Stock Chart for Saturday, July, 5, 2025 QSIAW Chart by TradingView Quantum-Si 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 Capitalization07/04/2025$0.71$0.71$0.71$0.6811,254 shs$0.0007/03/2025$0.65$0.71+9.09%$0.71$0.6811,254 shs$0.0007/02/2025$0.70$0.65-7.93%$0.67$0.634,959 shs$0.0007/01/2025$0.65$0.70+8.28%$0.71$0.6322,967 shs$0.0006/30/2025$0.63$0.65+3.33%$0.66$0.632,146 shs$0.0006/27/2025$0.60$0.63+4.98%$0.70$0.637,542 shs$0.0006/26/2025$0.70$0.60-14.27%$0.74$0.6012,802 shs$0.0006/25/2025$0.62$0.70+12.90%$0.83$0.6037,991 shs$0.0006/24/2025$0.63$0.62-1.59%$0.69$0.589,609 shs$0.0006/23/2025$0.63$0.63$0.67$0.631,687 shs$0.00 Get the Latest News and Ratings for QSIAW 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. 06/20/2025$0.61$0.63+3.28%$0.69$0.5545,793 shs$0.0006/19/2025$0.61$0.61$0.66$0.594,647 shs$0.0006/18/2025$0.68$0.61-10.29%$0.66$0.594,647 shs$0.0006/17/2025$0.66$0.68+2.87%$0.69$0.5011,437 shs$0.0006/16/2025$0.68$0.66-2.22%$0.70$0.607,193 shs$0.0006/13/2025$0.67$0.68+0.90%$0.78$0.658,279 shs$0.0006/12/2025$0.72$0.67-7.07%$0.74$0.679,369 shs$0.0006/11/2025$0.68$0.72+6.03%$0.88$0.6814,210 shs$0.0006/10/2025$0.67$0.68+1.49%$0.79$0.6612,599 shs$0.0006/09/2025$0.77$0.67-12.99%$0.87$0.6545,795 shs$0.0006/06/2025$0.71$0.77+7.99%$0.87$0.7219,012 shs$0.0006/05/2025$0.81$0.71-11.43%$0.81$0.6541,351 shs$0.0006/04/2025$0.79$0.81+1.90%$0.88$0.812,128 shs$0.00 Related Companies HTGMQ Stock Price Chart OLITW Stock Price Chart PRENW Stock Price Chart SMAPW Stock Price Chart TT Stock Price Chart KEYS Stock Price Chart VLTO Stock Price Chart FTV Stock Price Chart TER Stock Price Chart RVTY Stock Price Chart Receive QSIAW 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. This page (NASDAQ:QSIAW) was last updated on 7/5/2025 by MarketBeat.com Staff From Our PartnersA new rule goes live in July — and the banks are quietly cashing inA little-known regulation quietly goes into effect this July. And it's already being exploited by Wall Stre...American Alternative | SponsoredIs Elon's empire crumbling?The Tesla Shock Nobody Sees Coming While headlines scream "Tesla is doomed"... Jeff Brown has uncovered ...Brownstone Research | SponsoredPresidential Bombshell: $150T Resource to Be Released as soon as this Summer?Something extraordinary is happening in Washington. For the first time in over a century, a sitting Preside...Paradigm Press | SponsoredPost-Halving = Profit Season (Here’s How to Win It)It happens like clockwork. 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