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

0.7693 -0.0657 (-7.87%)
Streaming Delayed Price Updated: 4:00 PM EDT, Aug 24, 2026 Add to My Watchlist
Quote
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Price and Volume

Detailed Quote
Volume 3,853,819
Open 0.8000
Bid (Size) 0.7653 (600)
Ask (Size) 0.7740 (4,200)
Prev. Close 0.8350
Today's Range 0.7515 - 0.8300
52wk Range 0.6900 - 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 (QSI) Q2 2026 Earnings Call Transcript ↗
August 20, 2026
Proteus launch delayed to Q2 2027 as company cuts costs and eyes $4B market opportunity. 
Via The Motley Fool
Topics Earnings
News headline image
Quantum-Si to Participate in the H.C. Wainwright 28th Annual Global Investment Conference
August 18, 2026
From Quantum-Si Incorporated
Via GlobeNewswire

Performance

YTD
-33.7%
-33.7%
1 Month
-1.8%
-1.8%
3 Month
-28.8%
-28.8%
6 Month
-15.6%
-15.6%
1 Year
-32.5%
-32.5%

More News

Read More
News headline image
Quantum-Si Q2 Earnings Call Highlights ↗
August 13, 2026
Via MarketBeat
Topics Earnings
Quantum-Si (QSI) Reports Q1 2026 Revenue Miss but Beats EPS Amid Proteus Launch Preparations ↗
May 07, 2026
Via Chartmill
News headline image
Full Transcript: Quantum-Si Q2 2026 Earnings Call ↗
August 13, 2026
Via Benzinga
Topics Earnings
News headline image
Quantum-Si Reports Second Quarter 2026 Financial Results and Provides Proteus™ Development Update
August 13, 2026
From Quantum-Si Incorporated
Via GlobeNewswire
News headline image
Quantum-Si to Report Second Quarter 2026 Financial Results on August 13, 2026
July 27, 2026
From Quantum-Si Incorporated
Via GlobeNewswire
News headline image
Quantum-Si Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4)
June 16, 2026
From Quantum-Si Incorporated
Via Business Wire
News headline image
Quantum-Si and Cell Signaling Technology Partner to Advance Post-Translational Modification Analysis on Proteus™
June 10, 2026
From Quantum-Si Incorporated
Via Business Wire
News headline image
Quantum-Si Announces the Expansion of the Proteus™ Roadshow
June 03, 2026
From Quantum-Si Incorporated
Via Business Wire
News headline image
Quantum-Si Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4)
May 13, 2026
From Quantum-Si Incorporated
Via Business Wire
News headline image
Quantum-Si Q1 Earnings Call Highlights ↗
May 08, 2026
Via MarketBeat
Topics Earnings
News headline image
Quantum-Si (QSI) Q1 2026 Earnings Transcript ↗
May 07, 2026
Via The Motley Fool
News headline image
Quantum-Si Reports First Quarter 2026 Financial Results and Highlights Proteus™ Development Milestones
May 07, 2026
From Quantum-Si Incorporated
Via Business Wire
News headline image
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
News headline image
Quantum-Si Announces Successful Sequencing on Integrated Proteus™ Instruments
April 28, 2026
From Quantum-Si Incorporated
Via Business Wire
News headline image
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
News headline image
Quantum-Si to Report First Quarter 2026 Financial Results on May 7, 2026
April 16, 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
April 15, 2026
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
April 14, 2026
From Quantum-Si Incorporated
Via Business Wire
News headline image
Quantum-Si Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4)
April 10, 2026
From Quantum-Si Incorporated
Via Business Wire
News headline image
Quantum-Si Announces First Customer Samples Tested on the Proteus™ Prototype System
April 08, 2026
From Quantum-Si Incorporated
Via Business Wire
News headline image
Quantum-Si Announces the Start of the Proteus™ Roadshow
April 06, 2026
From Quantum-Si Incorporated
Via Business Wire
News headline image
Quantum-Si Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4)
March 13, 2026
From Quantum-Si Incorporated
Via Business Wire
News headline image
Quantum-Si (QSI) Q4 2025 Earnings Call Transcript ↗
March 03, 2026
Via The Motley Fool
Topics Earnings

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 0.7693
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 08/24/26 04:00 PM ET
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