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Quantum-Si Incorporated - Class A Common Stock
(NQ:
QSI
)
0.8721
+0.0103 (+1.20%)
Streaming Delayed Price
Updated: 1:52 PM EDT, Mar 9, 2026
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Price and Volume
Detailed Quote
Volume
3,439,606
Open
0.8750
Bid (Size)
0.8720 (100)
Ask (Size)
0.8721 (1,200)
Prev. Close
0.8618
Today's Range
0.8500 - 0.9100
52wk Range
0.8420 - 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 (QSI) Q4 2025 Earnings Call Transcript
↗
March 03, 2026
Quantum-Si (QSI) Q4 2025 Earnings Call Transcript
Via
The Motley Fool
Topics
Earnings
Quantum-Si (NASDAQ:QSI) Reports Q4 2025 Revenue Miss, Guides for Strategic Transition Year
↗
March 03, 2026
Via
Chartmill
Performance
YTD
-24.8%
-24.8%
1 Month
-18.1%
-18.1%
3 Month
-39.9%
-39.9%
6 Month
-17.7%
-17.7%
1 Year
-25.8%
-25.8%
More News
Read More
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
Earnings Scheduled For November 5, 2025
↗
November 05, 2025
Via
Benzinga
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
Russell 2000 Hits All-Time Highs: 8 Stocks Power Small-Cap Comeback
↗
September 18, 2025
Via
Benzinga
Topics
ETFs
Economy
12 Health Care Stocks Moving In Thursday's Intraday Session
↗
September 18, 2025
Via
Benzinga
Quantum-Si Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4)
September 15, 2025
From
Quantum-Si Incorporated
Via
Business Wire
Quantum-Si Announces the Launch of V4 Sequencing Kit, Expanding Proteome Coverage and Unlocking New Applications for Protein Sequencing
September 08, 2025
From
Quantum-Si Incorporated
Via
Business Wire
Quantum-Si to Participate in the H.C. Wainwright 27th Annual Global Investment Conference
August 19, 2025
From
Quantum-Si Incorporated
Via
Business Wire
Quantum-Si Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4)
August 13, 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 0.8721
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 03/09/26 01:52 PM ET
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