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

1.670 -0.070 (-4.02%)
Official Closing Price Updated: 4:15 PM EDT, Oct 10, 2025 Add to My Watchlist
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Price and Volume

Detailed Quote
Volume 21,678,140
Open 1.810
Bid (Size) 1.650 (1)
Ask (Size) 1.660 (15)
Prev. Close 1.740
Today's Range 1.660 - 1.950
52wk Range 0.6121 - 5.770
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
Why Quantum-Si Stock Flopped on Friday
It might be seeking to raise up to $300 million in new funding in the future. 
Via The Motley Fool
Inventiva, MoonLake Immunotherapeutics And Other Big Stocks Moving Lower In Monday's Pre-Market Session
U.S. stock futures were higher this morning, with the Dow futures gaining more than 100 points on Monday. Shares of Inventiva ADR (NASDAQ: IVA) fell sharply in today's pre-market trading following H1... 
Via Benzinga
Topics Stocks

Performance

YTD
-60.8%
-60.8%
1 Month
+45.2%
+45.2%
3 Month
-7.7%
-7.7%
6 Month
+42.7%
+42.7%
1 Year
+104.9%
+104.9%

More News

Read More
Why Merus Shares Are Trading Higher By 38%; Here Are 20 Stocks Moving Premarket
Via Benzinga
Earnings Scheduled For August 5, 2025
Via Benzinga
Quantum-Si to Host Investor & Analyst Event in New York City on November 19, 2025
From Quantum-Si Incorporated
Via Business Wire
Russell 2000 Hits All-Time Highs: 8 Stocks Power Small-Cap Comeback
Via Benzinga
Topics ETFs Economy
12 Health Care Stocks Moving In Thursday's Intraday Session
Via Benzinga
Quantum-Si Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4)
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
From Quantum-Si Incorporated
Via Business Wire
Quantum-Si to Participate in the H.C. Wainwright 27th Annual Global Investment Conference
From Quantum-Si Incorporated
Via Business Wire
Quantum-Si Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4)
From Quantum-Si Incorporated
Via Business Wire
Quantum-Si to Participate in the UBS Precision Medicine Frontiers Summit
From Quantum-Si Incorporated
Via Business Wire
Quantum-Si (QSI) Q2 Revenue Falls 47%
Via The Motley Fool
Quantum-Si Reports Second Quarter 2025 Financial Results
From Quantum-Si Incorporated
Via Business Wire
Quantum-Si to Participate in the Canaccord Genuity 45th Annual Growth Conference
From Quantum-Si Incorporated
Via Business Wire
Quantum-Si to Report Second Quarter 2025 Financial Results on August 5, 2025
From Quantum-Si Incorporated
Via Business Wire
Tesla, Quantum-Si And Other Big Stocks Moving Lower In Monday's Pre-Market Session
Via Benzinga
12 Health Care Stocks Moving In Monday's Pre-Market Session
Via Benzinga
US Stocks Likely To Open Lower After A Week Of Records: Tesla In Focus As Elon Musk Announces America Party
Via Benzinga
Why Apogee Therapeutics Shares Are Trading Higher By 50%; Here Are 20 Stocks Moving Premarket
Via Benzinga
Boeing, Orix And 3 Stocks To Watch Heading Into Monday
Via Benzinga
Quantum-Si Incorporated Announces Pricing of $50 Million Registered Direct Offering of Common Stock
From Quantum-Si Incorporated
Via Business Wire
Quantum-Si Platinum® Pro Instrument Placed at the Broad Institute to Support Regional Research Initiatives
From Quantum-Si Incorporated
Via Business Wire
Quantum-Si to Join Leading Experts from DNAnexus, Olink, and Northwestern in Upcoming GenomeWeb Webinar on Proteomics Data Integration and Standardization
From Quantum-Si Incorporated
Via Business Wire
Quantum-Si Customer to Showcase Protein Barcoding for Nucleic Acid–LNP Therapeutic Development at Festival of Genomics Boston
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 1.670
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 10/10/25 04:15 PM ET
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