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0.9885
4.42%
0.0418
Pre-market:
1.00
0.0115
+1.16%
Quantum Si Incorporated stock is traded at $0.9885, with a volume of 9.41M.
It is up +4.42% in the last 24 hours and up +11.05% over the past month.
Quantum-Si Inc is a life sciences company focused on proteomics research and analytical technologies. It develops single-molecule detection platforms designed to enable next-generation protein sequencing (NGPS) and large-scale protein analysis. Its technology supports massively parallel sequencing of proteins and can also be applied to the study of nucleic acids, providing tools for researchers and clinical applications in molecular analysis. The company's revenue is derived from sales of products and services.
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Previous Close:
$0.9467
Open:
$1.01
24h Volume:
9.41M
Relative Volume:
1.72
Market Cap:
$215.26M
Revenue:
$1.85M
Net Income/Loss:
$-103.82M
P/E Ratio:
-1.9303
EPS:
-0.5121
Net Cash Flow:
$-95.69M
1W Performance:
-6.75%
1M Performance:
+11.05%
6M Performance:
-19.63%
1Y Performance:
-40.45%
1-Day Range:
$0.9821
$1.05
1-Week Range:
$0.915
$1.08
52-Week Range:
$0.6912
$3.10
Quantum Si Incorporated Stock (QSI) Company Profile
Name
Quantum Si Incorporated
Sector
Industry
Phone
(203) 458-7100
Address
29 BUSINESS PARK DRIVE, BRANFORD
Compare QSI vs ABT, SYK, MDT, BSX, EW
| Stocks | Price | Market Cap | Revenue | Net Income | Cash Flow | EPS |
|---|---|---|---|---|---|---|
QSI
Quantum Si Incorporated
|
0.9885 | 215.26M | 1.85M | -103.82M | -95.69M | -0.5121 |
ABT
Abbott Laboratories
|
88.67 | 154.45B | 45.13B | 6.28B | 7.38B | 3.5895 |
SYK
Stryker Corp
|
307.94 | 118.05B | 25.27B | 3.34B | 4.57B | 8.6334 |
MDT
Medtronic Plc
|
80.38 | 103.20B | 36.36B | 4.84B | 5.43B | 3.7212 |
BSX
Boston Scientific Corp
|
46.76 | 69.50B | 20.62B | 3.56B | 3.48B | 2.3847 |
EW
Edwards Lifesciences Corp
|
86.28 | 49.68B | 6.30B | 1.07B | 1.09B | 1.8406 |
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
Quantum-Si (QSI) Tests Key Support at $0.9 as Selling Pressure IntensifiesWatchlist Stock Ideas - newsline.com
Quantum-Si partners with CST on protein sequencing validation - Investing.com UK
Quantum-Si (QSI) Form 25: Nasdaq withdrawal of warrants listing - Stock Titan
Quantum-Si and Cell Signaling Technology Partner to Advance Post-Translational Modification Analysis on Proteus - Investing News Network
Quantum-Si partners with CST on protein sequencing validation By Investing.com - Investing.com Canada
Quantum-Si and Cell Signaling Technology Partner to Advance Post-Translational Modification Analysis on Proteus™ - Yahoo Finance
Quantum-Si (QSI) Declines Sharply, Testing Critical Support at $1.0Gap and Go - newsline.com
Quantum-Si expands roadshow for Proteus protein sequencing platform By Investing.com - Investing.com South Africa
Quantum-Si expands roadshow for Proteus protein sequencing platform - Investing.com UK
Quantum-Si launches roadshow for Proteus protein sequencing platform By Investing.com - Investing.com Australia
Quantum-Si Announces the Expansion of the Proteus Roadshow - Investing News Network
Quantum-Si launches roadshow for Proteus protein sequencing platform - Investing.com
Quantum-Si Expands 2026 Proteus Protein Sequencing Roadshow Across North America and Europe - geneonline.com
Quantum-Si Announces the Expansion of the Proteus™ Roadshow - The Joplin Globe
Quantum-Si Stock Jumps as Traders Bet on Proteus Launch — Here’s What Could Move QSI Next - Bez Kabli
Is Quantum-Si (NASDAQ:QSI) In A Good Position To Invest In Growth? - Yahoo Finance
Quantum-Si Shares Decline 2.9%, Testing Key Support ZoneLast Point Resistance - The Legal Advocate
QSI Stock Price, Quote & Chart | QUANTUM-SI INC (NASDAQ:QSI) - ChartMill
Quantum-Si Q1 earnings call highlights - MSN
QSI Stock Grinds Higher As Proteus Milestones Pile Up - StocksToTrade
Quantum Cyber N.V. and Other Players Eye Potential CHIPS Act Funding From Trump Administration - TradingView
Quantum-Si (QSI) director Brigid Makes receives 251,185 stock options grant - Stock Titan
Quantum-Si (QSI) director receives 251,185 stock options as equity grant - Stock Titan
Director Paula Dowdy receives 251,185 options at Quantum-Si (QSI) - Stock Titan
Quantum-Si (QSI) director granted 251,185-share stock option at $0.8539 - Stock Titan
Quantum-Si (QSI) director granted 251K options at $0.8539 strike - Stock Titan
Quantum-Si (QSI) grants 251K stock options to director Scott Mendel - Stock Titan
Quantum-Si (QSI) director awarded 251,185 options at $0.8539 strike - Stock Titan
QSI: Proteus launches with advanced PTM detection, scalable upgrades, and strong financial backing - TradingView
Quantum-Si shareholders reelect board, approve auditor and executive pay By Investing.com - Investing.com Australia
Quantum-Si shareholders reelect board, approve auditor and executive pay - Investing.com
Quantum-Si Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4)May 13, 2026 - BioSpace
EDGAR Filing Documents for 0001816431-26-000011 - SEC.gov
Quantum-Si Incorporated 2026 Q1 Financial Report: Revenue, Expenses, and Forward-Looking Statements - minichart.com.sg
Quantum-Si Earnings Call: Proteus Progress, Profits Pending - TipRanks
Quantum-Si (NASDAQ:QSI) Issues Earnings Results - MarketBeat
Quantum-Si Q1 Earnings Call Highlights - sharewise.com
Quantum-Si Q1 2026 Earnings: Transition Year with Focus on Proteus PlatformNews and Statistics - IndexBox
Quantum-Si incorporated Q1 2026 Earnings Call Summary - Yahoo Finance
Quantum-Si outlines 2026 revenue of approximately $1M with Proteus launch targeted by end of 2026 - MSN
Quantum-Si Reports First Quarter 2026 Financial Results and Highlights Proteus™ Development Milestones - BioSpace
Quantum-Si Reports First Quarter 2026 Financial Results and Highlights Proteus Development Milestones - Investing News Network
Quantum Si incorporated : Quarterly Report for Quarter Ending March 31, 2026 (Form 10-Q) - marketscreener.com
Quantum-Si Incorporated (QSI) Reports Q1 Loss, Misses Revenue Estimates - Yahoo Finance
Quantum-Si (QSI) Q1 2026 Earnings Transcript - AOL.com
Quantum-Si Reports First Quarter 2026 Financial Results, Updates Proteus™ Development Progress - geneonline.com
Quantum-Si incorporated Reports Earnings Results for the First Quarter Ended March 31, 2026 - marketscreener.com
[10-Q] Quantum-Si Inc Quarterly Earnings Report - Stock Titan
Quantum Si Incorporated Stock (QSI) Financials Data
Revenue
Net Income
Cash Flow
EPS
Quantum Si Incorporated Stock (QSI) Insider Trading
| Insider Trading | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total |
|---|---|---|---|---|---|---|---|
| Keyes Jeffry R. | Chief Financial Officer |
Apr 21 '26 |
Sale |
0.99 |
37,381 |
37,194 |
1,732,582 |
| Hawkins Jeffrey Alan | President & CEO |
Apr 20 '26 |
Sale |
1.01 |
83,712 |
84,248 |
3,776,135 |
| Hawkins Jeffrey Alan | President & CEO |
Apr 21 '26 |
Sale |
0.99 |
83,712 |
83,293 |
3,692,423 |
0.35%
0.87%
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