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Quantum-Si Incorporated - Class A Common Stock (NQ:QSI)

1.050 -0.020 (-1.87%)
Streaming Delayed Price Updated: 9:32 AM EST, Feb 9, 2026 Add to My Watchlist
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Price and Volume

Detailed Quote
Volume 453,950
Open 1.080
Bid (Size) 1.050 (3,300)
Ask (Size) 1.060 (6,100)
Prev. Close 1.070
Today's Range 1.040 - 1.090
52wk Range 0.9248 - 3.100
Shares Outstanding N/A
Dividend Yield N/A
Chart for (: )
Intraday 1 Week 1 Month 3 Month 1 Year 3 Year 5 Year

Top News

More News
News headline image
Quantum-Si Announces the Release of Two New Manuscripts Demonstrating the Value of Single-Molecule Protein Sequencing in Clinical Proteomics and Pathogen & Toxin Detection
From Quantum-Si Incorporated
Via Business Wire
News headline image
Quantum-Si Announces Launch of New Version 3 Library Preparation Kit and a Suite of Data Analysis Tool Enhancements
From Quantum-Si Incorporated
Via Business Wire

Performance

YTD
-9.5%
-9.5%
1 Month
-13.9%
-13.9%
3 Month
-34.2%
-34.2%
6 Month
-12.5%
-12.5%
1 Year
-47.5%
-47.5%

More News

Read More
News headline image
Quantum-Si Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4)
From Quantum-Si Incorporated
Via Business Wire
News headline image
Earnings Scheduled For November 5, 2025 ↗
Via Benzinga
News headline image
Earnings Scheduled For August 5, 2025 ↗
Via Benzinga
News headline image
Quantum-Si Highlights Significant Development Advancements for Proteus™ and Industry Leading Technology Pipeline at Investor & Analyst Day
From Quantum-Si Incorporated
Via Business Wire
News headline image
Quantum-Si to Highlight Significant Proteus™ Platform Development Progress and Provide Insights into the Company’s Industry Leading Technology Pipeline at Investor & Analyst Day
From Quantum-Si Incorporated
Via Business Wire
News headline image
Quantum-Si Reports Third Quarter 2025 Financial Results
From Quantum-Si Incorporated
Via Business Wire
News headline image
Quantum-Si to Participate in the Canaccord Genuity MedTech, Diagnostics and Digital Health & Services Forum
From Quantum-Si Incorporated
Via Business Wire
News headline image
12 Health Care Stocks Moving In Monday's Intraday Session ↗
Via Benzinga
News headline image
Quantum-Si to Report Third Quarter 2025 Financial Results on November 5, 2025
From Quantum-Si Incorporated
Via Business Wire
News headline image
Why Quantum-Si Stock Flopped on Friday ↗
Via The Motley Fool
News headline image
Inventiva, MoonLake Immunotherapeutics And Other Big Stocks Moving Lower In Monday's Pre-Market Session ↗
Via Benzinga
Topics Stocks
News headline image
Why Merus Shares Are Trading Higher By 38%; Here Are 20 Stocks Moving Premarket ↗
Via Benzinga
News headline image
Quantum-Si to Host Investor & Analyst Event in New York City on November 19, 2025
From Quantum-Si Incorporated
Via Business Wire
News headline image
Russell 2000 Hits All-Time Highs: 8 Stocks Power Small-Cap Comeback ↗
Via Benzinga
Topics ETFs Economy
News headline image
12 Health Care Stocks Moving In Thursday's Intraday Session ↗
Via Benzinga
News headline image
Quantum-Si Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4)
From Quantum-Si Incorporated
Via Business Wire
News headline image
Quantum-Si Announces the Launch of V4 Sequencing Kit, Expanding Proteome Coverage and Unlocking New Applications for Protein Sequencing
From Quantum-Si Incorporated
Via Business Wire
News headline image
Quantum-Si to Participate in the H.C. Wainwright 27th Annual Global Investment Conference
From Quantum-Si Incorporated
Via Business Wire
News headline image
Quantum-Si Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4)
From Quantum-Si Incorporated
Via Business Wire
News headline image
Quantum-Si to Participate in the UBS Precision Medicine Frontiers Summit
From Quantum-Si Incorporated
Via Business Wire
News headline image
Quantum-Si (QSI) Q2 Revenue Falls 47% ↗
Via The Motley Fool
News headline image
Quantum-Si Reports Second Quarter 2025 Financial Results
From Quantum-Si Incorporated
Via Business Wire
News headline image
Quantum-Si to Participate in the Canaccord Genuity 45th Annual Growth Conference
From Quantum-Si Incorporated
Via Business Wire

Frequently Asked Questions

Is Quantum-Si Incorporated - Class A Common Stock publicly traded?
Yes, Quantum-Si Incorporated - Class A Common Stock is publicly traded.
What exchange does Quantum-Si Incorporated - Class A Common Stock trade on?
Quantum-Si Incorporated - Class A Common Stock trades on the Nasdaq Stock Market
What is the ticker symbol for Quantum-Si Incorporated - Class A Common Stock?
The ticker symbol for Quantum-Si Incorporated - Class A Common Stock is QSI on the Nasdaq Stock Market
What is the current price of Quantum-Si Incorporated - Class A Common Stock?
The current price of Quantum-Si Incorporated - Class A Common Stock is 1.050
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 02/09/26 09:32 AM ET
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