Quantum-Si (QSIAW) Stock Price, News & Analysis

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.

Key Stats

• Today's Range: $0.06 to $0.07
• 50-Day Range: $0.07 to $0.19
• 52-Week Range: $0.06 to $1.08
• Volume: 22,623 shs
• Average Volume: 11,540 shs
• Market Capitalization: N/A
• P/E Ratio: N/A
• Dividend Yield: N/A
• Price Target: N/A
• Consensus Rating: N/A

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 stock has decreased by 68.6% and is now trading at $0.0630.

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

• Today: 5/05/2026
• Next Earnings (Estimated): 5/07/2026

Industry, Sector and Symbol

• Stock Exchange: NASDAQ
• Sector: Medical
• Industry: Medical Devices
• Sub-Industry: Measuring And Control Equipment
• Current Symbol: NASDAQ:QSIAW
• CIK: 1833769
• Web: www.quantum-si.com
• Phone: 866-688-7374
• Fax: N/A
• Employees: 150
• Year Founded: N/A

Profitability

• EPS (Trailing Twelve Months): N/A
• Trailing P/E Ratio: N/A
• Forward P/E Ratio: N/A
• P/E Growth: N/A
• Net Income: N/A
• Net Margins: N/A
• Pretax Margin: N/A
• Return on Equity: N/A
• Return on Assets: N/A

Debt

• Debt-to-Equity Ratio: N/A
• Current Ratio: N/A
• Quick Ratio: N/A

Sales & Book Value

• Annual Sales: $2.44 million
• Price / Sales: N/A
• Cash Flow: N/A
• Price / Cash Flow: N/A
• Book Value: N/A
• Price / Book: N/A

Miscellaneous

• Outstanding Shares: N/A
• Free Float: N/A
• Market Cap: N/A
• Optionable: Not Optionable
• Beta: N/A