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▼$0.1152-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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Do you own it?BlackRock, JPMorgan, Goldman Sachs, and Fidelity are reportedly accumulating a scarce blockchain asset - one that gets burned with every transaction on what analysts are calling America's new financial grid. The Nasdaq has received SEC approval to move stocks onto blockchain rails, and BlackRock CEO Larry Fink dedicated his entire 2026 annual letter to this infrastructure shift. Blockchain analyst Andy Howard is calling this asset 'Digital Oil' - and says institutional buyers are already positioned.June 20 at 1:00 AM | Awesomely, LLC (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 beginning of 2026. 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 Today6/20/2026Next 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 5G Stocks: The Path Forward is ProfitableClick the link to see MarketBeat's guide to investing in 5G and which 5G stocks show the most promise. Get This Free Report This page (NASDAQ:QSIAW) was last updated on 6/20/2026 by MarketBeat.com Staff. 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