Recent Quotes
View Full List
My Watchlist
Create Watchlist
Indicators
DJI
Nasdaq Composite
SPX
Gold
Crude+Oil
Markets
Stocks
ETFs
Tools
Markets:
Overview
News
Currencies
International
Treasuries
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
Quote
Overview
Detailed Quote
Charting
Historical Prices
News
All News
News Headlines
Press Releases
Research
Quarterly Reports
Insider Filings
Other Filings
Price and Volume
Detailed Quote
Volume
13,192,859
Open
0.9734
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
Intraday
1 Week
1 Month
3 Month
1 Year
3 Year
5 Year
Top News
More News
Quantum-Si Q1 Earnings Call Highlights
↗
Today 18:13 EDT
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
↗
May 07, 2026
Via
Chartmill
Performance
YTD
-21.8%
-21.8%
1 Month
+27.4%
+27.4%
3 Month
-2.7%
-2.7%
6 Month
-45.1%
-45.1%
1 Year
-24.4%
-24.4%
More News
Read More
Quantum-Si (QSI) Q1 2026 Earnings Transcript
↗
May 07, 2026
Via
The Motley Fool
Quantum-Si Reports First Quarter 2026 Financial Results and Highlights Proteus™ Development Milestones
May 07, 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
Quantum-Si to Participate in the H.C. Wainwright 4th Annual BioConnect Investor Conference at NASDAQ
May 01, 2026
From
Quantum-Si Incorporated
Via
Business Wire
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
Via
InvestorPlace
Topics
Artificial Intelligence
Economy
Initial Public Offering
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 Announces Two Customer Posters to be Presented at the American Association of Cancer Research Annual Meeting
April 15, 2026
From
Quantum-Si Incorporated
Via
Business Wire
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 Inducement Grants Under Nasdaq Listing Rule 5635(c)(4)
April 10, 2026
From
Quantum-Si Incorporated
Via
Business Wire
Quantum-Si Announces First Customer Samples Tested on the Proteus™ Prototype System
April 08, 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
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
Stock Quote API & Stock News API supplied by
www.cloudquote.io
Quotes delayed at least 20 minutes.
By accessing this page, you agree to the
Privacy Policy
and
Terms Of Service
.
© 2025 FinancialContent. All rights reserved.