Quantum-Si incorporated (QSI) Stock

Quantum-Si incorporated (QSI) is a Technology stock trading at $0.71 (as of 2026-07-29), with a market capitalization of $153.94M. Figures are sourced from first-party U.S. SEC EDGAR filings and market data.

Quantum-Si incorporated is a life sciences company that develops a single-molecule detection platform intended to support sample preparation and sequencing. The platform is used across applications including semiconductor-based workflows and proteomics for protein sequencing. The company is based in Guilford, Connecticut and was incorporated in 2013.

Understand Quantum-Si incorporated: how it makes money

Quantum-Si develops a single molecule detection platform for sample preparation and sequencing, selling products and generating service revenue tied to its detection platform.

The profit model depends on scaling the platform from early product sales (driven by placements and customer orders) into ongoing service revenue, while also sustaining technical progress that supports sequencing performance.

Revenue by segment (latest quarter)
Product$0.0B
Service$0.0B

Business quality (Weak): This is an early-stage platform business with reported revenue at 0.0B for the latest period, so investors must lean heavily on operating execution metrics and technical progress rather than current financial output.

Bull case

  • Demonstrated technical progress in Proteus developmental sequencing: It reports 'Number of Amino Acids Detected in Proteus Developmental Sequencing' of 17.
  • Some evidence of commercial traction through installed footprint: It reports 'Number of Placements' of 12 and an 'Installed Base Outside the United States' of 65 percent.

Bear case

  • No reported revenue yet in the latest period: For 2026-03-31, 'Revenue_b' is 0.0B and both 'Product Revenue' and 'Service Revenue' are 0.0B.
  • Very large operating loss base: The latest 'operating_margin_pct' is -9322.9, indicating costs materially exceed operating output in the period.
  • Customer order visibility appears limited: It reports 'Customer Orders' of 0.0B alongside 0.0B product and service revenue.
Valuation — source: SEC EDGAR (first-party)
Price$0.71
Market Cap$153.94M
Price / Book0.85
Price / Sales109.02
FCF Yield-115.1%
Profitability & Growth — source: SEC EDGAR
Revenue (TTM)$2.44M
Net Margin-4160.1%
Revenue Growth (YoY)-20.3%
EPS Growth (YoY)-28.2%
FCF Growth (YoY)5.3%
Financial Health — source: SEC EDGAR
Altman Z-Score-1.48 (distress)
Valuation vs Sector & Industry
Sector P/E (Technology)33.9
Industry P/E (Measuring & Control Equipment)51.8
Smart-Money Activity — SEC Form 4 / 13F / Congressional disclosures
Top Institutional HolderEverSource Wealth Advisors, LLC ($24.37M)
Institutional Holders Tracked10
Company
SectorTechnology
IndustryMeasuring & Control Equipment
CEOJeffrey Alan Hawkins
Employees149
CountryUS
IPO Date2020-11-13

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QSI earnings history · QSI institutional & insider holders · QSI KPIs & operating metrics · QSI financials · QSI investor presentations & press releases · QSI SEC filings · QSI peers · Congress trades · Insider trades · Short interest · Stock screener

Data as of 2026-07-29.

Figures sourced from U.S. Securities and Exchange Commission (SEC EDGAR) filings and market data. Not personalized investment advice.