1.74
price up icon8.75%   0.14
after-market After Hours: 1.73 -0.01 -0.57%
loading
Quantum Si Incorporated stock is traded at $1.74, with a volume of 5.60M. It is up +8.75% in the last 24 hours and up +46.22% over the past month. Quantum-Si Inc is a life sciences company focused on the development and commercialization of proteomics research tools. The company has designed and developed a hardware, consumable, and software solution to provide a solution for protein detection and analysis. It has developed a proprietary universal single-molecule detection platform that enables Next-Generation Protein Sequencing (NGPS), the ability to sequence proteins.
See More
Previous Close:
$1.60
Open:
$1.625
24h Volume:
5.60M
Relative Volume:
0.78
Market Cap:
$308.28M
Revenue:
-
Net Income/Loss:
$-95.96M
P/E Ratio:
-2.5588
EPS:
-0.68
Net Cash Flow:
$-99.31M
1W Performance:
+3.57%
1M Performance:
+46.22%
6M Performance:
+30.83%
1Y Performance:
+12.26%
1-Day Range:
Value
$1.62
$1.75
1-Week Range:
Value
$1.57
$1.8198
52-Week Range:
Value
$0.6121
$5.77

Quantum Si Incorporated Stock (QSI) Company Profile

Name
Name
Quantum Si Incorporated
Name
Phone
(203) 458-7100
Name
Address
29 BUSINESS PARK DRIVE, BRANFORD
Name
Employee
143
Name
Twitter
Name
Next Earnings Date
2025-03-03
Name
Latest SEC Filings
Name
QSI's Discussions on Twitter

Compare QSI with other stocks

Stocks Price Market Cap Revenue Net Income Cash Flow EPS
Medical Devices icon
QSI
Quantum Si Incorporated
1.74 308.28M 0 -95.96M -99.31M -0.68
Medical Devices icon
ABT
Abbott Laboratories
133.58 232.41B 42.34B 13.50B 6.66B 7.71
Medical Devices icon
BSX
Boston Scientific Corp
102.09 155.73B 17.55B 2.03B 2.72B 1.37
Medical Devices icon
SYK
Stryker Corp
383.89 146.23B 23.22B 2.86B 3.58B 7.40
Medical Devices icon
MDT
Medtronic Plc
87.44 106.37B 33.54B 4.66B 5.19B 3.62
Medical Devices icon
EW
Edwards Lifesciences Corp
77.52 45.88B 5.54B 4.18B 623.10M 7.00

Quantum Si Incorporated Stock (QSI) Upgrades & Downgrades

Date Action Analyst Rating Change
Feb-07-25 Initiated Alliance Global Partners Buy
Dec-08-23 Initiated H.C. Wainwright Buy
Sep-25-23 Downgrade Canaccord Genuity Buy → Hold
Oct-20-21 Initiated Canaccord Genuity Buy

Quantum Si Incorporated Stock (QSI) Latest News

pulisher
01:46 AM

Quantum-Si Warrants: Why A Sevenfold Rally Seems Unlikely Before 2026 (NASDAQ:QSIAW) - Seeking Alpha

01:46 AM
pulisher
Jun 01, 2025

Quantum-Si incorporated (NASDAQ:QSI) Q1 2025 Earnings Call Transcript - MSN

Jun 01, 2025
pulisher
May 27, 2025

Quantum Stocks Explode as IonQ Channels Nvidia-Like Vision - Investing.com

May 27, 2025
pulisher
May 26, 2025

Quantum-Si incorporated (NASDAQ:QSI) Position Increased by Northern Trust Corp - Defense World

May 26, 2025
pulisher
May 22, 2025

Quantum-Si: Sell On Weak Prospects And Risk Of Further Dilution - Seeking Alpha

May 22, 2025
pulisher
May 22, 2025

FY2025 EPS Estimates for Quantum-Si Raised by HC Wainwright - Defense World

May 22, 2025
pulisher
May 21, 2025

HC Wainwright Reaffirms “Buy” Rating for Quantum-Si (NASDAQ:QSI) - Defense World

May 21, 2025
pulisher
May 20, 2025

Balyasny Asset Management L.P. Makes New Investment in Quantum-Si incorporated (NASDAQ:QSI) - Defense World

May 20, 2025
pulisher
May 19, 2025

The Manufacturers Life Insurance Company Purchases Shares of 34,850 Quantum-Si incorporated (NASDAQ:QSI) - Defense World

May 19, 2025
pulisher
May 19, 2025

H.C. Wainwright Adjusts Quantum-Si (QSI) Price Target, Maintains Buy Rating | QSI Stock News - GuruFocus

May 19, 2025
pulisher
May 18, 2025

Quantum-Si outlines $103M operating expense target for 2025 while accelerating international expansion - MSN

May 18, 2025
pulisher
May 18, 2025

Mercer Global Advisors Inc. ADV Buys Shares of 30,959 Quantum-Si incorporated (NASDAQ:QSI) - Defense World

May 18, 2025
pulisher
May 17, 2025

While institutions invested in Quantum-Si incorporated (NASDAQ:QSI) benefited from last week's 17% gain, retail investors stood to gain the most - simplywall.st

May 17, 2025
pulisher
May 16, 2025

Quantum-Si’s Earnings Call: Growth Amid Challenges - TipRanks

May 16, 2025
pulisher
May 16, 2025

Transcript : Quantum-Si incorporatedShareholder/Analyst Call - marketscreener.com

May 16, 2025
pulisher
May 16, 2025

Price T Rowe Associates Inc. MD Acquires 11,787 Shares of Quantum-Si incorporated (NASDAQ:QSI) - Defense World

May 16, 2025
pulisher
May 16, 2025

Quantum-Si Reports Strong Growth in Q1 2025 - TipRanks

May 16, 2025
pulisher
May 15, 2025

Transcript : Quantum-Si incorporated, Q1 2025 Earnings Call, May 15, 2025 - marketscreener.com

May 15, 2025
pulisher
May 15, 2025

Quantum-Si Q1 2025 Earnings Call Transcript - MarketBeat

May 15, 2025
pulisher
May 15, 2025

Quantum-Si Reports First Quarter 2025 Financial Results - BioSpace

May 15, 2025
pulisher
May 15, 2025

Quantum-Si Incorporated (QSI) Reports Q1 Loss, Lags Revenue Estimates - Nasdaq

May 15, 2025
pulisher
May 15, 2025

Quantum-Si Incorporated (QSI): A New Perspective - Stocksregister

May 15, 2025
pulisher
May 14, 2025

retail investors who own 52% along with institutions invested in Quantum-Si incorporated (NASDAQ:QSI) saw increase in their holdings value last week - Yahoo Finance

May 14, 2025
pulisher
May 14, 2025

Quantum-Si Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4)May 13, 2025 - BioSpace

May 14, 2025
pulisher
May 12, 2025

Dr. Gloria Sheynkman from the University of Virginia to Present Pioneering Research utilizing Quantum-Si’s Next-Gen Protein Sequencing™ Platform in Upcoming Nature Webinar on May 15 - Business Wire

May 12, 2025
pulisher
May 12, 2025

Quantum-Si incorporated (NASDAQ:QSI) Shares Bought by Tower Research Capital LLC TRC - Defense World

May 12, 2025
pulisher
May 10, 2025

Quantum-Si incorporated (NASDAQ:QSI) Shares Sold by Barclays PLC - The AM Reporter

May 10, 2025
pulisher
May 10, 2025

Barclays PLC Sells 46,210 Shares of Quantum-Si incorporated (NASDAQ:QSI) - Defense World

May 10, 2025
pulisher
May 09, 2025

Mariner LLC Acquires 7,540 Shares of Quantum-Si incorporated (NASDAQ:QSI) - Defense World

May 09, 2025
pulisher
May 09, 2025

Wells Fargo & Company MN Purchases 8,802 Shares of Quantum-Si incorporated (NASDAQ:QSI) - Defense World

May 09, 2025
pulisher
May 08, 2025

Quantum-Si (QSI) Projected to Post Quarterly Earnings on Thursday - Defense World

May 08, 2025
pulisher
May 03, 2025

Is QSI Stock a Smart Investment ? A Deep Dive into Quantum-Si’s Future Potential - Startup Info

May 03, 2025
pulisher
Apr 30, 2025

QSI’s Stock Market Adventure: -57.78% YTD Growth Amidst Volatility - investchronicle.com

Apr 30, 2025
pulisher
Apr 30, 2025

Holdings of Quantum-Si Incorporated (QSI) are aligned with the stars - Sete News

Apr 30, 2025
pulisher
Apr 29, 2025

Market Insights: Quantum-Si Incorporated (QSI)’s Notable Drop of -1.63, Closing at 1.21 - DWinneX

Apr 29, 2025
pulisher
Apr 29, 2025

Renaissance Technologies LLC Buys 503,400 Shares of Quantum-Si incorporated (NASDAQ:QSI) - Defense World

Apr 29, 2025
pulisher
Apr 28, 2025

Quantum-Si Incorporated’s Market Journey: Closing Strong at 1.29, Up 0.39 - DWinneX

Apr 28, 2025
pulisher
Apr 28, 2025

Technical analysis of Quantum-Si Incorporated (QSI) stock chart patterns - uspostnews.com

Apr 28, 2025
pulisher
Apr 26, 2025

Geode Capital Management LLC Raises Position in Quantum-Si incorporated (NASDAQ:QSI) - Defense World

Apr 26, 2025
pulisher
Apr 24, 2025

Quantum-Si to Report First Quarter 2025 Financial Results on May 15, 2025 - Business Wire

Apr 24, 2025
pulisher
Apr 23, 2025

Quantum-Si Incorporated [QSI] stock was sold by Hawkins Jeffrey Alan at the price of US$32846.0 - knoxdaily.com

Apr 23, 2025
pulisher
Apr 12, 2025

Commonwealth Equity Services LLC Boosts Holdings in Quantum-Si incorporated (NASDAQ:QSI) - Defense World

Apr 12, 2025
pulisher
Apr 11, 2025

Trading Day Review: Quantum-Si Incorporated (QSI) Loses Momentum, Closing at 1.17 - DWinneX

Apr 11, 2025
pulisher
Apr 10, 2025

Quantum-Si Updates Corporate Strategy in Proteomics - TipRanks

Apr 10, 2025
pulisher
Apr 03, 2025

Quantum-Si (NasdaqGM:QSI) Launches Platinum Pro Amid 5% Stock Dip Over The Past Month - Yahoo Finance

Apr 03, 2025
pulisher
Mar 29, 2025

Quantum-Si incorporated (NASDAQ:QSI) CEO Jeffrey Alan Hawkins Sells 23,707 Shares - MarketBeat

Mar 29, 2025
pulisher
Mar 28, 2025

Quantum-Si incorporated (NASDAQ:QSI) CFO Sells $11,990.14 in Stock - MarketBeat

Mar 28, 2025
pulisher
Mar 26, 2025

Quantum-Si begins global shipment of Platinum Pro sequencer By Investing.com - Investing.com South Africa

Mar 26, 2025
pulisher
Mar 26, 2025

Quantum-Si begins global shipment of Platinum Pro sequencer - Investing.com

Mar 26, 2025
pulisher
Mar 26, 2025

Quantum-Si Begins Shipping Platinum® Pro, Advancing Accessibility in Next-Gen Protein Sequencing™ - Business Wire

Mar 26, 2025
pulisher
Mar 24, 2025

Quantum-Si to Participate in DNAnexus Webinar on Large Scale Proteomics in Multi-Omics Research - Bluefield Daily Telegraph

Mar 24, 2025

Quantum Si Incorporated Stock (QSI) Financials Data

Revenue

loading

Net Income

loading

Cash Flow

loading

EPS

loading
medical_devices PHG
$23.46
price up icon 0.56%
$311.77
price down icon 1.70%
medical_devices STE
$243.72
price up icon 0.06%
$71.62
price up icon 0.10%
$86.67
price up icon 1.08%
medical_devices EW
$77.52
price down icon 0.32%
Cap:     |  Volume (24h):