This company has been marked as potentially delisted and may not be actively trading. NASDAQ:QSIAW Quantum-Si (QSIAW) Stock Price, News & Analysis Add Compare Share Share Stock Analysis Stock AnalysisTrendsBuy This Stock About Quantum-Si Stock (NASDAQ:QSIAW) Get Quantum-Si alerts:Sign Up Key Stats Today's Range$0.0068▼$0.006850-Day Range$0.00▼$0.0752-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.comCODE RED: AI Meltdown Imminent?After correctly predicting the 2008 and 2020 stock market meltdowns, I believe this AI company is about to trigger the next crash. The research firm Bernstein Research said this AI company has the power to crash the global economy for a decade, the CEO just issued a CODE RED in an internal memo warning employees they're dealing with a critical situation, and another company executive even implied they might need a government bailout. The last time I saw something like this was in 2008 when I predicted a stock market meltdown just three weeks before Lehman went under.July 21 at 1:00 AM | Paradigm Press (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 Company Calendar Today7/21/2026Next Earnings (Estimated)8/10/2026Get Stock AlertsIndustry, 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 (Almost) Everything You Need To Know About The EV MarketLooking to profit from the electric vehicle mega-trend? 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