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Quantum-Si Incorporated - Class A Common Stock
(NQ:
QSI
)
0.9806
+0.1158 (+13.39%)
Streaming Delayed Price
Updated: 4:00 PM EDT, Apr 30, 2026
Add to My Watchlist
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Price and Volume
Detailed Quote
Volume
11,918,779
Open
0.8765
Bid (Size)
0.9710 (1,000)
Ask (Size)
0.9782 (500)
Prev. Close
0.8648
Today's Range
0.8765 - 1.020
52wk Range
0.6912 - 3.100
Shares Outstanding
N/A
Dividend Yield
N/A
Intraday
1 Week
1 Month
3 Month
1 Year
3 Year
5 Year
Top News
More News
Quantum-Si Announces Successful Sequencing on Integrated Proteus™ Instruments
April 28, 2026
From
Quantum-Si Incorporated
Via
Business Wire
Forget Neuralink: The Real Brain Tech Trade Has 10 Names You’ve Never Heard
↗
April 25, 2026
The real brain computer interface opportunity isn’t in the headlines. These 10 stocks are building the systems that make it possible.
Via
InvestorPlace
Topics
Artificial Intelligence
Economy
Initial Public Offering
Performance
YTD
-15.5%
-15.5%
1 Month
+26.7%
+26.7%
3 Month
-16.2%
-16.2%
6 Month
-51.7%
-51.7%
1 Year
-14.0%
-14.0%
More News
Read More
Quantum-Si to Report First Quarter 2026 Financial Results on May 7, 2026
April 16, 2026
From
Quantum-Si Incorporated
Via
Business Wire
Quantum-Si (NASDAQ:QSI) Reports Q4 2025 Revenue Miss, Guides for Strategic Transition Year
↗
March 03, 2026
Via
Chartmill
Earnings Scheduled For November 5, 2025
↗
November 05, 2025
Via
Benzinga
Quantum-Si Announces New Manuscript Demonstrating the Value of Single-molecule Protein Sequencing to Aid in Identifying New Cancer Treatment Strategies
April 14, 2026
From
Quantum-Si Incorporated
Via
Business Wire
Quantum-Si Announces the Start of the Proteus™ Roadshow
April 06, 2026
From
Quantum-Si Incorporated
Via
Business Wire
Quantum-Si Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4)
March 13, 2026
From
Quantum-Si Incorporated
Via
Business Wire
Quantum-Si (QSI) Q4 2025 Earnings Call Transcript
↗
March 03, 2026
Via
The Motley Fool
Topics
Earnings
Quantum-Si Reports Fourth Quarter and Full Year 2025 Financial Results
March 03, 2026
From
Quantum-Si Incorporated
Via
Business Wire
Quantum-Si Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4)
February 13, 2026
From
Quantum-Si Incorporated
Via
Business Wire
Quantum-Si to Report Fourth Quarter and Full Year 2025 Financial Results on March 3, 2026
February 10, 2026
From
Quantum-Si Incorporated
Via
Business Wire
Quantum-Si Announces the Release of Two New Manuscripts Demonstrating the Value of Single-Molecule Protein Sequencing in Clinical Proteomics and Pathogen & Toxin Detection
February 05, 2026
From
Quantum-Si Incorporated
Via
Business Wire
Quantum-Si Announces Launch of New Version 3 Library Preparation Kit and a Suite of Data Analysis Tool Enhancements
December 22, 2025
From
Quantum-Si Incorporated
Via
Business Wire
Quantum-Si Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4)
December 15, 2025
From
Quantum-Si Incorporated
Via
Business Wire
Quantum-Si Highlights Significant Development Advancements for Proteus™ and Industry Leading Technology Pipeline at Investor & Analyst Day
November 20, 2025
From
Quantum-Si Incorporated
Via
Business Wire
Quantum-Si to Highlight Significant Proteus™ Platform Development Progress and Provide Insights into the Company’s Industry Leading Technology Pipeline at Investor & Analyst Day
November 19, 2025
From
Quantum-Si Incorporated
Via
Business Wire
Quantum-Si Reports Third Quarter 2025 Financial Results
November 05, 2025
From
Quantum-Si Incorporated
Via
Business Wire
Quantum-Si to Participate in the Canaccord Genuity MedTech, Diagnostics and Digital Health & Services Forum
October 20, 2025
From
Quantum-Si Incorporated
Via
Business Wire
12 Health Care Stocks Moving In Monday's Intraday Session
↗
October 13, 2025
Via
Benzinga
Quantum-Si to Report Third Quarter 2025 Financial Results on November 5, 2025
October 13, 2025
From
Quantum-Si Incorporated
Via
Business Wire
Why Quantum-Si Stock Flopped on Friday
↗
October 10, 2025
Via
The Motley Fool
Inventiva, MoonLake Immunotherapeutics And Other Big Stocks Moving Lower In Monday's Pre-Market Session
↗
September 29, 2025
Via
Benzinga
Topics
Stocks
Why Merus Shares Are Trading Higher By 38%; Here Are 20 Stocks Moving Premarket
↗
September 29, 2025
Via
Benzinga
Quantum-Si to Host Investor & Analyst Event in New York City on November 19, 2025
September 23, 2025
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 0.9806
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 04/30/26 04:00 PM ET
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