Quantum-Si incorporated (QSI)

NASDAQ: QSI · Real-Time Price · USD
1.040
+0.114 (12.32%)
At close: Mar 10, 2026, 4:00 PM EDT
1.040
0.00 (0.00%)
Pre-market: Mar 11, 2026, 7:53 AM EDT
Market Cap225.02M -23.6%
Revenue (ttm)2.44M -20.3%
Net Income-101.34M
EPS-0.51
Shares Out 216.37M
PE Ration/a
Forward PEn/a
Dividendn/a
Ex-Dividend Daten/a
Volume8,474,558
Open0.940
Previous Close0.926
Day's Range0.935 - 1.100
52-Week Range0.842 - 3.100
Beta3.08
AnalystsBuy
Price Target1.00 (-3.85%)
Earnings DateMar 3, 2026

About QSI

Quantum-Si incorporated, a life sciences company, develops proprietary, universal, and single-molecule detection platform applied to proteomics to enable next-gen protein sequencing (NGPS). The company offers Platinum and Platinum Pro NGPS instruments for single-molecule, amino acid level resolution, and automated data analysis; library preparation kits to prepare a customer’s protein sample for sequencing; and sequencing kits, which contain the reagents and consumables used to perform NGPS. It also provides Platinum analysis software, a cloud-... [Read more]

Sector Healthcare
Founded 2013
Employees 145
Stock Exchange NASDAQ
Ticker Symbol QSI
Full Company Profile

Financial Performance

In 2025, Quantum-Si incorporated's revenue was $2.44 million, a decrease of -20.34% compared to the previous year's $3.06 million. Losses were -$101.34 million, 0.33% more than in 2024.

Financial Statements

Analyst Summary

According to 2 analysts, the average rating for QSI stock is "Buy." The 12-month stock price target is $1.0, which is a decrease of -3.85% from the latest price.

Price Target
$1.0
(-3.85% downside)
Analyst Consensus: Buy
Stock Forecasts

News

Quantum-Si incorporated (QSI) Q4 2025 Earnings Call Transcript

Quantum-Si incorporated (QSI) Q4 2025 Earnings Call Transcript

6 days ago - Seeking Alpha

Quantum-Si Shares Slip After Q4 Revenue Miss

Quantum-Si, Inc. (NASDAQ: QSI) shares moved lower in Tuesday's extended trading after the company released its fourth-quarter earnings report, missing Street revenue estimates.

7 days ago - Benzinga

Quantum-Si Reports Fourth Quarter and Full Year 2025 Financial Results

BRANFORD, Conn.--(BUSINESS WIRE)--Quantum-Si Reports Fourth Quarter and Full Year 2025 Financial Results.

7 days ago - Business Wire

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

BRANFORD, Conn.--(BUSINESS WIRE)--Quantum-Si Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4).

25 days ago - Business Wire

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

BRANFORD, Conn.--(BUSINESS WIRE)--Quantum-Si to Report Fourth Quarter and Full Year 2025 Financial Results on March 3, 2026.

4 weeks ago - Business Wire

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

BRANFORD, Conn.--(BUSINESS WIRE)--Quantum-Si Announces the Release of Two New Manuscripts.

4 weeks ago - Business Wire

Quantum-Si Announces Launch of New Version 3 Library Preparation Kit and a Suite of Data Analysis Tool Enhancements

BRANFORD, Conn.--(BUSINESS WIRE)--Quantum-Si Announces Launch of New Version 3 Library Preparation Kit and a Suite of Data Analysis Tool Enhancements.

2 months ago - Business Wire

Quantum-Si Highlights Significant Development Advancements for Proteus™ and Industry Leading Technology Pipeline at Investor & Analyst Day

BRANFORD, Conn.--(BUSINESS WIRE)--Quantum-Si Highlights Significant Development Advancements for ProteusTM and Industry Leading Technology Pipeline at Investor & Analyst Day.

3 months ago - Business Wire

Quantum-Si incorporated (QSI) Analyst/Investor Day Transcript

Quantum-Si incorporated ( QSI) Analyst/Investor Day November 19, 2025 10:00 AM EST Company Participants Jeffrey Hawkins - President, CEO & Director Todd Rearick - Chief Technology Officer John Viecel...

3 months ago - Seeking Alpha

Quantum-Si to Highlight Significant Proteus™ Platform Development Progress and Provide Insights into the Company's Industry Leading Technology Pipeline at Investor & Analyst Day

BRANFORD, Conn.--(BUSINESS WIRE)--QSI to Highlight Significant Proteus™ Platform Dev Progress & Provide Insights into Company's Industry Leading Tech Pipeline at Investor & Analyst Day.

3 months ago - Business Wire

Quantum-Si incorporated (QSI) Q3 2025 Earnings Call Transcript

Quantum-Si incorporated ( QSI) Q3 2025 Earnings Call November 5, 2025 4:30 PM EST Company Participants Risa Lindsay Jeffrey Hawkins - President, CEO & Director Jeffry Keyes - CFO & Treasurer Conferen...

4 months ago - Seeking Alpha

Quantum-Si Reports Third Quarter 2025 Financial Results

BRANFORD, Conn.--(BUSINESS WIRE)--Quantum-Si Reports Third Quarter 2025 Financial Results. Announces Successful Sequencing on Prototype Proteus Unit, Development Program is On-Track.

4 months ago - Business Wire

Quantum-Si to Participate in the Canaccord Genuity MedTech, Diagnostics and Digital Health & Services Forum

BRANFORD, Conn.--(BUSINESS WIRE)--Quantum-Si to Participate in the Canaccord Genuity MedTech, Diagnostics and Digital Health & Services Forum.

5 months ago - Business Wire

Quantum-Si to Report Third Quarter 2025 Financial Results on November 5, 2025

BRANFORD, Conn.--(BUSINESS WIRE)--Quantum-Si to Report Third Quarter 2025 Financial Results on November 5, 2025.

5 months ago - Business Wire

Quantum-Si to Host Investor & Analyst Event in New York City on November 19, 2025

BRANFORD, Conn--(BUSINESS WIRE)--Quantum-Si to Host Investor & Analyst Event in New York City on November 19, 2025.

6 months ago - Business Wire

Quantum-Si Announces the Launch of V4 Sequencing Kit, Expanding Proteome Coverage and Unlocking New Applications for Protein Sequencing

BRANFORD, Conn.--(BUSINESS WIRE)--Quantum-Si Announces the Launch of V4 Sequencing Kit, Expanding Proteome Coverage and Unlocking New Applications for Protein Sequencing.

6 months ago - Business Wire

Quantum-Si to Participate in the H.C. Wainwright 27th Annual Global Investment Conference

BRANFORD, Conn.--(BUSINESS WIRE)--Quantum-Si to Participate in the H.C. Wainwright 27th Annual Global Investment Conference.

7 months ago - Business Wire

Quantum-Si to Participate in the UBS Precision Medicine Frontiers Summit

BRANFORD, Conn.--(BUSINESS WIRE)--Quantum-Si to Participate in the UBS Precision Medicine Frontiers Summit.

7 months ago - Business Wire

Quantum-Si incorporated (QSI) Q2 2025 Earnings Call Transcript

Quantum-Si incorporated (NASDAQ:QSI) Q2 2025 Earnings Conference Call August 5, 2025 4:30 PM ET Company Participants Jeffrey Alan Hawkins - President, CEO & Director Jeffry R. Keyes - CFO & Treasurer...

7 months ago - Seeking Alpha

Quantum-Si Reports Second Quarter 2025 Financial Results

BRANFORD, Conn.--(BUSINESS WIRE)--Quantum-Si Reports Second Quarter 2025 Financial Results.

7 months ago - Business Wire

Quantum-Si Stock: A Small Position Is Warranted (Technical Analysis)

Quantum-Si shows bullish technical signals: trading above its 30-week EMA, strong momentum, positive volume trends, and outperforming the S&P 500 since April. Upcoming earnings are a key catalyst. Sur...

8 months ago - Seeking Alpha

Quantum-Si to Participate in the Canaccord Genuity 45th Annual Growth Conference

BRANFORD, Conn.--(BUSINESS WIRE)--Quantum-Si to Participate in the Canaccord Genuity 45th Annual Growth Conference.

8 months ago - Business Wire

Quantum-Si to Report Second Quarter 2025 Financial Results on August 5, 2025

BRANFORD, Conn.--(BUSINESS WIRE)--Quantum-Si to Report Second Quarter 2025 Financial Results on August 5, 2025.

8 months ago - Business Wire

Tesla, Quantum-Si And Other Big Stocks Moving Lower In Monday's Pre-Market Session

U.S. stock futures were mixed this morning, with the Dow futures gaining around 0.1% on Monday.

Other symbols: TSLA
8 months ago - Benzinga

Quantum-Si Incorporated Announces Pricing of $50 Million Registered Direct Offering of Common Stock

BRANFORD, Conn.--(BUSINESS WIRE)--Quantum-Si Incorporated Announces Pricing of $50 Million Registered Direct Offering of Common Stock.

8 months ago - Business Wire