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

0.9066 -0.0740 (-7.55%)
Streaming Delayed Price Updated: 4:00 PM EDT, May 8, 2026 Add to My Watchlist
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Price and Volume

Detailed Quote
Volume 13,192,859
Open 0.9700
Bid (Size) 0.9000 (1,900)
Ask (Size) 0.9170 (6,000)
Prev. Close 0.9806
Today's Range 0.8800 - 0.9734
52wk Range 0.6912 - 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 Q1 Earnings Call Highlights ↗
Quantum-Si (NASDAQ:QSI) reported first-quarter 2026 revenue of $258,000 and reiterated that the year will be a transition period focused on development and market preparation for its next-generation... 
Via MarketBeat
Topics Earnings
Quantum-Si (QSI) Reports Q1 2026 Revenue Miss but Beats EPS Amid Proteus Launch Preparations ↗
Via Chartmill

Performance

YTD
-21.8%
-21.8%
1 Month
+20.8%
+20.8%
3 Month
-14.9%
-14.9%
6 Month
-42.4%
-42.4%
1 Year
-31.8%
-31.8%

More News

Read More
News headline image
Quantum-Si (QSI) Q1 2026 Earnings Transcript ↗
Via The Motley Fool
News headline image
Quantum-Si Reports First Quarter 2026 Financial Results and Highlights Proteus™ Development Milestones
From Quantum-Si Incorporated
Via Business Wire
Quantum-Si (NASDAQ:QSI) Reports Q4 2025 Revenue Miss, Guides for Strategic Transition Year ↗
Via Chartmill
News headline image
Quantum-Si to Participate in the H.C. Wainwright 4th Annual BioConnect Investor Conference at NASDAQ
From Quantum-Si Incorporated
Via Business Wire
News headline image
Quantum-Si Announces Successful Sequencing on Integrated Proteus™ Instruments
From Quantum-Si Incorporated
Via Business Wire
News headline image
Forget Neuralink: The Real Brain Tech Trade Has 10 Names You’ve Never Heard ↗
Via InvestorPlace
Topics Artificial Intelligence Economy Initial Public Offering
News headline image
Quantum-Si to Report First Quarter 2026 Financial Results on May 7, 2026
From Quantum-Si Incorporated
Via Business Wire
News headline image
Quantum-Si Announces Two Customer Posters to be Presented at the American Association of Cancer Research Annual Meeting
From Quantum-Si Incorporated
Via Business Wire
News headline image
Quantum-Si Announces New Manuscript Demonstrating the Value of Single-molecule Protein Sequencing to Aid in Identifying New Cancer Treatment Strategies
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 Announces First Customer Samples Tested on the Proteus™ Prototype System
From Quantum-Si Incorporated
Via Business Wire
News headline image
Quantum-Si Announces the Start of the Proteus™ Roadshow
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 (QSI) Q4 2025 Earnings Call Transcript ↗
Via The Motley Fool
Topics Earnings
News headline image
Quantum-Si Reports Fourth Quarter and Full Year 2025 Financial Results
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 Report Fourth Quarter and Full Year 2025 Financial Results on March 3, 2026
From Quantum-Si Incorporated
Via Business Wire
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
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 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

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 0.9066
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 05/08/26 04:00 PM ET
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