My Watchlist
Indicators
Markets
Stocks
ETFs
Tools
Markets:
Overview
News
Currencies
International
Treasuries

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

1.720 +0.180 (+11.69%)
Streaming Delayed Price Updated: 4:00 PM EDT, Oct 3, 2025 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 19,291,723
Open 1.570
Bid (Size) 1.710 (10)
Ask (Size) 1.720 (13)
Prev. Close 1.540
Today's Range 1.560 - 1.760
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
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
Why Merus Shares Are Trading Higher By 38%; Here Are 20 Stocks Moving Premarket
Shares of Merus NV (NASDAQ: MRUS) rose sharply in today's pre-market trading. Genmab announced plans to acquire Merus for $8 billion in all-cash deal adding breakthrough therapy Petosemtamab to its... 
Via Benzinga

Performance

YTD
-59.6%
-59.6%
1 Month
+60.7%
+60.7%
3 Month
-5.8%
-5.8%
6 Month
+56.4%
+56.4%
1 Year
+105.5%
+105.5%

More News

Read More
Quantum-Si to Host Investor & Analyst Event in New York City on November 19, 2025
From Quantum-Si Incorporated
Via Business Wire
Earnings Scheduled For August 5, 2025
Via Benzinga
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
Quantum-Si Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4)
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 1.720
When was Quantum-Si Incorporated - Class A Common Stock last traded?
The last trade of Quantum-Si Incorporated - Class A Common Stock was at 10/03/25 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 following
Privacy Policy and Terms Of Service.