NASDAQ:QSIAW Quantum-Si (QSIAW) Stock Price, News & Analysis $0.0068 0.00 (0.00%) As of 06/11/2026 Add Compare Share Share Stock Analysis Stock AnalysisChartCompetitorsSEC FilingsTrendsBuy This Stock About Quantum-Si Stock (NASDAQ:QSIAW) View Price History Chart DataSkip Price History Chart 1 Day 5 Days 30 Days 90 Days 1 Year Advanced 1 Day 1 Day 5 Days 30 Days 90 Days 1 Year Advanced Show volume Show extended hours Get Quantum-Si alerts:Sign Up Key Stats Today's Range$0.0068▼$0.006850-Day Range$0.00▼$0.0952-Week Range$0.00▼$0.88VolumeN/AAverage Volume33,205 shsMarket CapitalizationN/AP/E RatioN/ADividend YieldN/APrice TargetN/AConsensus RatingN/A Company Overview Quantum-Si, Inc. (NASDAQ: QSIAW) is a life sciences company focused on developing a next-generation protein sequencing platform. The company aims to unlock the proteome by enabling single-molecule protein analysis, a capability that promises to advance drug discovery, diagnostic development and molecular biology research. Quantum-Si’s core technology leverages proprietary semiconductor-based nanopore arrays and optical detection to directly sequence proteins and quantify expression patterns with high sensitivity. Headquartered in Pleasanton, California, Quantum-Si was founded to address limitations in existing proteomics methods, such as mass spectrometry, which can be time-consuming and less sensitive to low-abundance proteins. The company’s flagship product, the Q-EPIC System, integrates sample preparation reagents, fluidics cartridges and bioinformatics software to deliver end-to-end protein sequencing workflows. By providing single-molecule resolution, Quantum-Si’s platform offers researchers more comprehensive insights into post-translational modifications and protein biomarkers. Quantum-Si serves a broad customer base that includes pharmaceutical and biotechnology companies, academic institutions and diagnostic developers across North America, Europe and Asia. The company has established collaborations with leading research organizations to validate its sequencing technology in therapeutic areas such as oncology, neurology and immunology. Quantum-Si’s leadership team combines expertise in genomics, semiconductor engineering and life sciences commercialization to accelerate the adoption of its protein sequencing solutions.AI Generated. May Contain Errors. Read More Receive QSIAW Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Quantum-Si and its competitors with MarketBeat's FREE daily newsletter. Submit View SMS TermsSMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. 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WtMay 29, 2026 | wsj.comQuantum-Si outlines 2026 revenue of approximately $1M with Proteus launch targeted by end of 2026May 8, 2026 | seekingalpha.comSMX Could Turn Proof Technology into Major Profit!SMX (Security Matters) PLC embeds invisible molecular markers into plastics, metals, fuels, and textiles — connecting each material to a secure digital identity that verifies origin, recycled content, and compliance. With commodity prices near historic highs and governments demanding stricter material verification, SMX is positioning itself as core infrastructure for the emerging proof economy. Energy volatility and supply-chain disruption are accelerating demand for exactly this kind of traceable identity technology.June 30 at 1:00 AM | Smallcaps Daily (Ad)Quantum-Si Announces Two Customer Posters to be Presented at the American Association of Cancer Research Annual MeetingApril 15, 2026 | finance.yahoo.comQuantum-Si Announces New Manuscript Demonstrating the Value of Single-molecule Protein Sequencing to Aid in Identifying New Cancer Treatment StrategiesApril 14, 2026 | finance.yahoo.comQuantum-Si Announces First Customer Samples Tested on the Proteus™ Prototype SystemApril 8, 2026 | finance.yahoo.comQuantum-Si incorporated's (NASDAQ:QSI) 21% loss last week hit both individual investors who own 49% as well as institutionsNovember 10, 2025 | finance.yahoo.comQuantum-Si outlines continued placement-driven growth and Proteus launch milestones as market pressures persistNovember 6, 2025 | msn.comSee More Headlines QSIAW Stock Analysis - Frequently Asked Questions How have QSIAW shares performed this year? Quantum-Si's stock was trading at $0.2005 at the start of the year. Since then, QSIAW shares have decreased by 96.6% and is now trading at $0.0068. How do I buy shares of Quantum-Si? Shares of QSIAW stock can be purchased through any online brokerage account. Popular online brokerages with access to the U.S. stock market include Charles Schwab, E*TRADE, Fidelity, and Vanguard Brokerage Services. Company Calendar Today6/30/2026Next Earnings (Estimated)8/10/2026Get Stock Alerts Health Indicator TradeSmith's Health IndicatorA long-term volatility-based measure designed for securities held 12 months or longer.Green: Strong and healthy uptrend with normal pullbacks.Yellow: Significant pullback but still within expected volatility.Red: Dropped beyond expected volatility; considered unhealthy. Red Zone (4m+) 1-Year History Jun 25 Sep 25 Dec 25 Mar 26 Jun 26 QSIAW's financial health is in the Red zone, according to TradeSmith. QSIAW has been in this zone for over 4 months. Industry, Sector and Symbol Stock ExchangeNASDAQ SectorMedical Industry Medical Devices Sub-IndustryMeasuring And Control Equipment Current SymbolNASDAQ:QSIAW CIK1833769 Webwww.quantum-si.com Phone866-688-7374FaxN/AEmployees150Year FoundedN/AProfitability EPS (Trailing Twelve Months)N/A Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet IncomeN/A Net MarginsN/A Pretax MarginN/A Return on EquityN/A Return on AssetsN/A Debt Debt-to-Equity RatioN/A Current RatioN/A Quick RatioN/A Sales & Book Value Annual Sales$1.85 million Price / SalesN/A Cash FlowN/A Price / Cash FlowN/A Book ValueN/A Price / BookN/AMiscellaneous Outstanding SharesN/AFree FloatN/AMarket CapN/A OptionableNot Optionable BetaN/A 10 Stocks Powering The Next AI Boom The AI boom is creating opportunities across semiconductors, cloud computing, enterprise software, infrastructure, cybersecurity, and automation. Inside this report, you’ll find 10 companies positioned to benefit as artificial intelligence moves from hype to real-world deployment and becomes a core growth driver for corporate America.Get This Free Report This page (NASDAQ:QSIAW) was last updated on 6/30/2026 by MarketBeat.com Staff. 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