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Quantum-Si Incorporated(NASDAQ) QSI

Market Cap$182.77MMarket cap calculated using publicly traded shares outstanding only. Does not include unlisted, private, or dual-class non-traded shares. Implied market cap may vary.
Since IPO (2020)-92%
5 Year-90%
1 Year-25%
1 Month+4%
Premium Feature
Moneyball Superscore
44/100
$0.83
+6.63%
+0.05Today
After hours$0.84+$0.01 (+1.48%)
Quantum-Si Incorporated last closing stock price
MetricPriceDate
Last closeUSD 0.842026-08-21
Quantum-Si Incorporated stock price return by period
PeriodPrice returnPrice at period startPeriod start date
1 week+12.87%USD 0.742026-08-14
1 month+4.37%USD 0.802026-07-22
3 month-21.23%USD 1.062026-05-22
Year to date-24.09%USD 1.102025-12-31
1 year-24.77%USD 1.112025-08-21
3 year-57.61%USD 1.972023-08-22
5 year-89.96%USD 8.322021-08-20
Since inception-92.11%USD 9.882020-11-13

Quantum-Si Incorporated Financials at a Glance

Market Cap

$182.77MMarket cap calculated using publicly traded shares outstanding only. Does not include unlisted, private, or dual-class non-traded shares. Implied market cap may vary.

Revenue (TTM)

$1.61M

Net Income (TTM)

-$98.52M

EPS (TTM)

-$0.46

P/E Ratio

-1.80

Dividend

$0.00

Beta (Volatility)

2.27 (High)

Price

$0.83

Volume

7,825,142.684

Open

$0.78

Previous Close

$0.84

Daily Range

$0.78 - $0.93

52-Week Range

$0.69 - $3.10

Estimated Earnings Date

Nov 4, 2026

QSI News

Person looking at laptop screen with head in hands

Why Quantum-Si Stock Flopped on Friday

Eric VolkmanOct 10, 2025
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Quantum-Si (QSI) Q2 Revenue Falls 47%

Motley Fool Markets TeamAug 5, 2025
1 big red arrow going down over a stock chart.

Why Quantum-Si Stock Crashed 35% Today

Rich SmithAug 7, 2023
lab research scientists science test tube experiement women in STEM

Why Shares of Quantum-Si Jumped This Week

James HalleyJul 21, 2023
Biotech, healthcare, lab testing

Is Cathie Wood Stock Quantum-Si a Buy?

Nicholas RossolilloJul 21, 2023
GettyImages-1442947197

Does Cathie Wood Have Her Hands on the Next Big Semiconductor Stock?

Keith NoonanJul 16, 2023
GettyImages-1449174792

Why Quantum-Si Stock Was Highly Volatile Today

Keith NoonanJul 14, 2023
dnaphoto

Why Shares of Quantum-Si Are Up Thursday

James HalleyJul 13, 2023
Page 1

QSI: Motley Fool Moneyball Superscore

44

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About Quantum-Si Incorporated

Quantum-Si Incorporated, founded by Dr. Jonathan Rothberg, is a life sciences company focused on transforming single-molecule analysis and democratizing access to the proteome. The company aims to revolutionize proteomics with its proprietary Next-Generation Protein Sequencing (NGPS) technology, offering streamlined, efficient solutions for protein analysis. By making this technology accessible, Quantum-Si seeks to enable researchers and clinicians to gain insights into biological pathways and diseases, paving the way for advancements in healthcare and diagnostics.

Products and Services

Platinum™: A single-molecule protein sequencing instrument designed for accessibility and high precision.

Platinum Analysis Software: Cloud-based solution facilitating data management and analysis for proteomics.

Consumables: Reagent kits and proprietary semiconductor chips used with the Platinum™ instrument.

What Makes Quantum-Si incorporated Special

Quantum-Si stands apart with its pioneering single-molecule detection technology on a semiconductor chip. This innovation allows comprehensive protein analysis with higher accuracy and reduced costs compared to traditional mass spectrometry methods. The approach democratizes access to proteomics, aiming to integrate seamlessly into existing research workflows.

Five Things You Need to Know

Quantum-Si's NGPS technology enables parallel sequencing of proteins, significantly speeding up analysis compared to conventional methods.

The company has secured 293 issued patents and 666 pending applications, underscoring its commitment to innovation and intellectual property protection.

Revenue for 2023 was $1.1 million, reflecting the early stages of product commercialization and market adoption.

The company's leadership team has deep experience in life sciences, having pioneered next-generation DNA sequencing technologies.

Quantum-Si's target market includes a substantial $75 billion opportunity spanning life science research and diagnostics.

AI Generated • Apr 16, 2026

Industry

Life Sciences Tools and Services

Sector

Health Care

Employees

145

CEO

Jeffrey Alan Hawkins, MBA

Website

www.quantum-si.com

Headquarters

Branford, CT 06405, US

QSI Financials

Key Financial Metrics (TTM)

Gross Margin

35.02%

Operating Margin

-5929.72%

Net Income Margin

-6138.26%

Return on Equity

-47.12%

Return on Capital

-43.39%

Return on Assets

-50.89%

Earnings Yield

-55.56%

Dividend Yield

0.00%

Payout Ratio

0.00%

Stock Overview

Market Cap

$182.77MMarket cap calculated using publicly traded shares outstanding only. Does not include unlisted, private, or dual-class non-traded shares. Implied market cap may vary.

Shares Outstanding

218.88M

Volume

7.83M

Avg. Volume

4.63M

Financials (TTM)

Gross Profit

$562.00K

Operating Income

-$95.17M

EBITDA

-$92.04M

Operating Cash Flow

-$92.45M

Capital Expenditure

-$1.24M

Free Cash Flow

-$93.69M

Cash & ST Invst.

$111.74M

Total Debt

$3.25M

Quantum-Si Incorporated Performance Analysis

Quantum-Si Incorporated annual revenue and year-over-year revenue growth by fiscal year
Fiscal yearPeriod endRevenueYoY growth
20222022-12-31USD 0N/A
20232023-12-31USD 1,082,000N/A
20242024-12-31USD 3,058,000182.6%
20252025-12-31USD 2,436,000-20.3%
Quantum-Si Incorporated sequential (quarter-over-quarter) revenue growth by fiscal quarter
Fiscal quarterPeriod endQoQ growth
Q32025-09-30-6.6%
Q42025-12-31-18.3%
Q12026-03-31-42.8%
Q22026-06-3033.3%
Quantum-Si Incorporated annual diluted earnings per share and year-over-year EPS growth by fiscal year
Fiscal yearPeriod endDiluted EPSYoY growth
20222022-12-31USD -0.95-20.3%
20232023-12-31USD -0.68-28.6%
20242024-12-31USD -0.713.9%
20252025-12-31USD -0.51-27.4%
Quantum-Si Incorporated sequential (quarter-over-quarter) diluted earnings per share growth by fiscal quarter
Fiscal quarterPeriod endQoQ growth
Q32025-09-30-6.3%
Q42025-12-3150.5%
Q12026-03-31-18.8%
Q22026-06-30-10.0%

Revenue Growth Rate

Annual and quarterly growth comparison

Earnings Per Share Growth Rate

Annual and quarterly EPS growth comparison

Quarterly Performance

Name
Q2 2026YOY CHG

Revenue

$344.00K

-41.8%

Gross Profit

$172.00K

-51.0%

Gross Margin

50.00%

N/A

Market Cap

$182.77MMarket cap calculated using publicly traded shares outstanding only. Does not include unlisted, private, or dual-class non-traded shares. Implied market cap may vary.

N/A

Market Cap/Employee

$1.26M

N/A

Employees

145

N/A

Net Income

-$23.53M

+18.4%

EBITDA

-$26.07M

-2.0%

Quarterly Fundamentals

Name
Q2 2026YOY CHG

Total Cash

$111.74M

-47.8%

Total Debt

$3.25M

-70.8%

Accounts Receivable

$57.00K

-99.0%

Inventory

$0.00

-100.0%

Long Term Debt

$1.41M

-84.9%

Short Term Debt

$1.84M

+3.4%

Return on Assets

-50.89%

N/A

Return on Invested Capital

-52.40%

N/A

Free Cash Flow

-$18.52M

+9.8%

Operating Cash Flow

-$18.44M

+8.7%

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Questions About QSI

What is the current price of Quantum-Si Incorporated?

Quantum-Si Incorporated is trading at $0.84 per share.

What is the 52-week range for Quantum-Si Incorporated?

Over the past 52 weeks, Quantum-Si Incorporated has traded between $0.69 and $3.10.

How much debt does Quantum-Si Incorporated have?

As of the most recent reporting period, Quantum-Si Incorporated reported total debt of $3.25M.

How much cash does Quantum-Si Incorporated have on hand?

Quantum-Si Incorporated reported $23.65M in cash and cash equivalents in its most recent financial results.

What is Quantum-Si Incorporated’s dividend yield?

Quantum-Si Incorporated does not currently have a dividend yield.

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