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Quantum-Si Incorporated Stock Quote

Quantum-Si Incorporated (NASDAQ: QSI)

$0.86
(-5.2%)
-0.05
Price as of March 6, 2026, 3:58 p.m. ET

KEY DATA POINTS

Current Price
$0.86
Daily Change
(-5.2%) $0.05
Day's Range
$0.84 - $0.90
Previous Close
$0.86
Open
$0.89
Beta
2.16
Volume
5,636,902
Average Volume
4,568,792
Market Cap
$186M
Market Cap / Employee
$0.86M
52wk Range
$0.84 - $3.10
Revenue
N/A
Gross Margin
-1.36%
Dividend Yield
N/A
EPS
-$0.52
CAPs Rating
N/A
Industry
Life Sciences Tools and Services

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Quantum-Si Incorporated Return vs. S&P

1 Year5 Year5 Year AnnualizedSince IPO
QSI-32.93%-93.48%-42.04%-91%
S&P+17.45%+75.43%+11.88%+88%

Quantum-Si Incorporated Company Info

Quantum-Si, Inc. engages in the development of a proprietary universal single-molecule detection platform to enable Next-Generation Protein Sequencing, the ability to sequence proteins in a massively parallel fashion. It can be used for the study of nucleic acids. Its platform includes Carbon automated sample preparation instrument, Platinum NGPS instrument, Quantum-Si Cloud software service, and reagent kits and chips for use with its instruments. The company was founded by Jonathan M. Rothberg on June 24, 2013 and is headquartered in Guilford, CT.

News & Analysis

Financial Health

General

Q4 2025YOY Change
Revenue$451.00K-62.2%
Gross Profit-$1,051.00K-173.7%
Gross Margin-233.04%-200.8%
Market Cap$237.04M-38.5%
Market Cap / Employee$1.63M0.0%
Employees145-2.7%
Net Income-$17,611.00K46.8%
EBITDA-$19,921.00K27.7%

Currently no data to display

Revenue Growth Rate

Currently no data to display.

Earnings Per Share Growth Rate

Currently no data to display.

Assets

Q4 2025YOY Change
Net Cash$21.64M-56.1%
Accounts Receivable$561.00K-57.9%
Inventory3.2-21.4%

Liabilities

Q4 2025YOY Change
Long Term Debt$2.32M-74.9%
Short Term Debt$1.84M-50.1%

Ratios

Q4 2025YOY Change
Return On Assets-41.00%-4.0%
Return On Invested Capital-46.06%0.3%

Cash Flow

Q4 2025YOY Change
Free Cash Flow-$16,330.00K32.8%
Operating Free Cash Flow-$16,347.00K28.6%

Valuation

MetricQ1 2025Q2 2025Q3 2025Q4 2025YoY Change
Price to Book0.931.461.181.01-44.94%
Price to Sales63.54105.4892.7894.46-26.89%
Price to Tangible Book Value0.931.461.181.01-44.94%
Enterprise Value to EBITDA0.07-6.13-3.17-3.58-50.25%
Return on Equity-40.2%-46.9%-52.4%-46.5%12.16%
Total Debt$12.05M$11.14M$4.61M$4.17M-67.83%

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