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Quantum Si Incorporated stock is traded at $0.9901, with a volume of 1.23M. It is up +0.90% in the last 24 hours and down -17.44% 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.
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Previous Close:
$0.9901
Open:
$1.01
24h Volume:
1.23M
Relative Volume:
0.27
Market Cap:
$213.38M
Revenue:
-
Net Income/Loss:
$-95.96M
P/E Ratio:
-1.456
EPS:
-0.68
Net Cash Flow:
$-99.31M
1W Performance:
+3.99%
1M Performance:
-17.44%
6M Performance:
-14.62%
1Y Performance:
-32.95%
1-Day Range:
Value
$0.9812
$1.025
1-Week Range:
Value
$0.902
$1.025
52-Week Range:
Value
$0.887
$3.10

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 vs ABT, SYK, MDT, BSX, EW

Stocks Price Market Cap Revenue Net Income Cash Flow EPS
Medical Devices icon
QSI
Quantum Si Incorporated
0.9902 213.36M 0 -95.96M -99.31M -0.68
Medical Devices icon
ABT
Abbott Laboratories
115.84 199.55B 44.33B 6.50B 7.40B 3.717
Medical Devices icon
SYK
Stryker Corp
383.64 146.96B 25.12B 3.25B 4.28B 8.3984
Medical Devices icon
MDT
Medtronic Plc
96.25 123.91B 35.48B 4.64B 5.41B 3.582
Medical Devices icon
BSX
Boston Scientific Corp
74.72 109.04B 20.08B 2.89B 3.66B 1.9391
Medical Devices icon
EW
Edwards Lifesciences Corp
84.79 48.40B 6.07B 1.06B 799.60M 1.8527

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
Feb 24, 2026

Stop Loss: How much upside does Quantum Si incorporated Equity Warrant haveFed Meeting & Growth Focused Stock Reports - baoquankhu1.vn

Feb 24, 2026
pulisher
Feb 24, 2026

Quantum-Si (QSI) to Release Earnings on Tuesday - MarketBeat

Feb 24, 2026
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Feb 22, 2026

Can Quantum Si incorporated Equity Warrant be recession proofPortfolio Performance Summary & Smart Swing Trading Alerts - mfd.ru

Feb 22, 2026
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Feb 21, 2026

Is Quantum Si incorporated Equity Warrant stock a good pick for beginnersWeekly Trend Recap & Risk Controlled Daily Plans - mfd.ru

Feb 21, 2026
pulisher
Feb 21, 2026

Risk Off: Does Quantum Si incorporated stock reflect fundamentalsJuly 2025 Analyst Calls & High Accuracy Swing Trade Signals - baoquankhu1.vn

Feb 21, 2026
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Feb 20, 2026

How Quantum Si incorporated Equity Warrant stock performs in interest rate cycles2025 Volatility Report & Growth Oriented Trading Recommendations - mfd.ru

Feb 20, 2026
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Feb 20, 2026

How cyclical is Quantum Si incorporated Equity Warrant’s revenue streamWeekly Profit Recap & AI Powered Trade Plan Recommendations - mfd.ru

Feb 20, 2026
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Feb 20, 2026

Is Quantum Si incorporated a stock for growth or value investorsInflation Watch & Reliable Price Breakout Signals - mfd.ru

Feb 20, 2026
pulisher
Feb 20, 2026

Why Quantum Si incorporated Equity Warrant stock could rally in 2025Quarterly Earnings Report & Technical Pattern Based Signals - mfd.ru

Feb 20, 2026
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Feb 19, 2026

Portfolio Shifts: Whats the profit margin of Quantum Si incorporated Equity Warrant2025 Big Picture & Technical Pattern Based Buy Signals - baoquankhu1.vn

Feb 19, 2026
pulisher
Feb 19, 2026

Quantum-Si Incorporated (QSI) Stock Analysis: Exploring a 196% Potential Upside in the Medical Devices Sector - DirectorsTalk Interviews

Feb 19, 2026
pulisher
Feb 18, 2026

Quantum-Si (NASDAQ:QSI) Stock Price Down 5.2%Here's Why - MarketBeat

Feb 18, 2026
pulisher
Feb 16, 2026

Does Quantum Si incorporated have pricing powerPortfolio Risk Summary & AI Forecast Swing Trade Picks - mfd.ru

Feb 16, 2026
pulisher
Feb 16, 2026

Quantum-Si announces inducement grants - Medical Buyer

Feb 16, 2026
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Feb 14, 2026

How Quantum Si incorporated Equity Warrant stock performs in stagflation2025 Retail Activity & Stock Portfolio Risk Management - mfd.ru

Feb 14, 2026
pulisher
Feb 14, 2026

How sensitive is Quantum Si incorporated to inflationDay Trade & Daily Stock Trend Reports - mfd.ru

Feb 14, 2026
pulisher
Feb 14, 2026

Can Quantum Si incorporated Equity Warrant stock beat market expectations this quarterJuly 2025 Catalysts & Accurate Entry/Exit Alerts - mfd.ru

Feb 14, 2026
pulisher
Feb 14, 2026

Tech Rally: Is OCCIN subject to activist investor interestPrice Action & Low Risk Growth Stock Ideas - baoquankhu1.vn

Feb 14, 2026
pulisher
Feb 13, 2026

Quantum-Si Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4) - Business Wire

Feb 13, 2026
pulisher
Feb 13, 2026

What drives Quantum Si incorporated Equity Warrant’s stock priceMarket Movement Recap & Daily Entry Point Trade Alerts - mfd.ru

Feb 13, 2026
pulisher
Feb 13, 2026

Will Quantum Si incorporated outperform during market ralliesEarnings Recap Report & Risk Managed Investment Strategies - mfd.ru

Feb 13, 2026
pulisher
Feb 12, 2026

How much upside does Quantum Si incorporated Equity Warrant haveJuly 2025 Setups & Verified Trade Idea Suggestions - mfd.ru

Feb 12, 2026
pulisher
Feb 12, 2026

Quantum-Si Incorporated (QSI) Investor Outlook: Exploring A Potential 158% Upside - DirectorsTalk Interviews

Feb 12, 2026
pulisher
Feb 11, 2026

Does Quantum Si incorporated Equity Warrant align with a passive investing strategyJuly 2025 Update & Reliable Entry Point Trade Alerts - mfd.ru

Feb 11, 2026
pulisher
Feb 11, 2026

CEO Moves: Is Quantum Si incorporated Equity Warrant currently under institutional pressureMarket Rally & Fast Exit and Entry Trade Guides - baoquankhu1.vn

Feb 11, 2026
pulisher
Feb 10, 2026

Quantum-Si to Report Fourth Quarter and Full Year 2025 Financial Results on March 3, 2026 - Investing News Network

Feb 10, 2026
pulisher
Feb 09, 2026

Investment Review: How sensitive is Quantum Si incorporated to inflationJuly 2025 Trends & AI Powered Market Entry Ideas - baoquankhu1.vn

Feb 09, 2026
pulisher
Feb 09, 2026

What are Quantum Si incorporated’s recent SEC filings showingMarket Growth Review & Real-Time Chart Breakout Alerts - mfd.ru

Feb 09, 2026
pulisher
Feb 08, 2026

Can Quantum Si incorporated stock resist sector downturns2025 Momentum Check & Fast Gaining Stock Reports - mfd.ru

Feb 08, 2026
pulisher
Feb 05, 2026

Quantum-Si Announces the Release of Two New Manuscripts Demonstrating the Value of Single-Molecule Protein Sequencing in Clinical Proteomics and Pathogen & Toxin Detection - Business Wire

Feb 05, 2026
pulisher
Feb 04, 2026

Quantum-Si Falls To US$1.09, But Insiders Sold At Lower Price - simplywall.st

Feb 04, 2026
pulisher
Feb 03, 2026

Merger Talk: Does Quantum Si incorporated stock reflect fundamentalsJuly 2025 Chart Watch & Weekly High Return Stock Opportunities - baoquankhu1.vn

Feb 03, 2026
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Feb 03, 2026

Market Overview: Is Quantum Si incorporated forming a bullish divergenceBuy Signal & AI Driven Stock Reports - baoquankhu1.vn

Feb 03, 2026
pulisher
Jan 31, 2026

Trend Review: Can Quantum Si incorporated Equity Warrant be recession proofWeekly Trade Review & Technical Buy Zone Confirmation - baoquankhu1.vn

Jan 31, 2026
pulisher
Jan 31, 2026

Growth Value: Is Grayscale Bitcoin Trust BTC a potential multi baggerQuarterly Investment Review & AI Driven Stock Movement Reports - baoquankhu1.vn

Jan 31, 2026
pulisher
Jan 25, 2026

Published on: 2026-01-25 14:12:54 - baoquankhu1.vn

Jan 25, 2026
pulisher
Jan 25, 2026

Surprises Report: Is Quantum Si incorporated forming a bullish divergencePortfolio Return Report & Real-Time Volume Trigger Notifications - baoquankhu1.vn

Jan 25, 2026
pulisher
Jan 23, 2026

Energy Moves: What is the cash position of Quantum Si incorporated2025 Winners & Losers & Safe Entry Zone Tips - baoquankhu1.vn

Jan 23, 2026
pulisher
Jan 22, 2026

Quantum-Si Incorporated (QSI) Stock Analysis: Navigating a 118% Potential Upside in the Medical Devices Sector - DirectorsTalk Interviews

Jan 22, 2026
pulisher
Jan 21, 2026

Cathie Wood Has 13 Big Ideas For 2026: Here's The Ark Invest List And Stocks To Watch - Benzinga

Jan 21, 2026
pulisher
Jan 20, 2026

Aug EndMonth: Is Clearwater Paper Corporation a top pick in the sectorJuly 2025 Trends & Risk Controlled Swing Trade Alerts - baoquankhu1.vn

Jan 20, 2026
pulisher
Jan 20, 2026

VIX Spike: How sensitive is Quantum Si incorporated to inflationQuarterly Earnings Summary & Smart Money Movement Alerts - baoquankhu1.vn

Jan 20, 2026
pulisher
Jan 20, 2026

Published on: 2026-01-20 12:35:46 - baoquankhu1.vn

Jan 20, 2026
pulisher
Jan 19, 2026

Is Quantum Si incorporated Equity Warrant currently under institutional pressure2025 Winners & Losers & Reliable Breakout Stock Forecasts - bollywoodhelpline.com

Jan 19, 2026
pulisher
Jan 19, 2026

Why Quantum Si incorporated Equity Warrant stock remains a top recommendationJuly 2025 Gainers & Free Weekly Chart Analysis and Trade Guides - bollywoodhelpline.com

Jan 19, 2026
pulisher
Jan 18, 2026

Sectors Review: Is Quantum Si incorporated Equity Warrant a cyclical or defensive stockJobs Report & Expert Approved Momentum Ideas - baoquankhu1.vn

Jan 18, 2026
pulisher
Jan 17, 2026

Hedge Fund Bets: How much upside does Quantum Si incorporated Equity Warrant haveMarket Trend Review & Safe Entry Zone Tips - baoquankhu1.vn

Jan 17, 2026
pulisher
Jan 16, 2026

Hedge Fund Bets: Can Quantum Si incorporated Equity Warrant reach all time highs this yearEarnings Growth Summary & Weekly Watchlist for Consistent Profits - baoquankhu1.vn

Jan 16, 2026
pulisher
Jan 15, 2026

Nasdaq Moves: Can Quantum Si incorporated Equity Warrant grow without external fundingJuly 2025 Momentum & Fast Moving Market Watchlists - baoquankhu1.vn

Jan 15, 2026
pulisher
Jan 13, 2026

Quantum-Si (NASDAQ:QSI) Shares Down 0.8%Should You Sell? - MarketBeat

Jan 13, 2026
pulisher
Jan 12, 2026

CEO Change: Will NTST benefit from sector rotationIPO Watch & Verified Momentum Stock Alerts - baoquankhu1.vn

Jan 12, 2026

Quantum Si Incorporated Stock (QSI) Financials Data

Revenue

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Net Income

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Cash Flow

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EPS

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medical_devices ZBH
$100.10
price up icon 0.26%
medical_devices STE
$251.73
price down icon 0.24%
$73.82
price up icon 0.72%
medical_devices PHG
$31.90
price up icon 1.19%
$84.41
price up icon 0.55%
medical_devices EW
$84.78
price up icon 1.73%
Cap:     |  Volume (24h):