Quantum-Si incorporated (QSI)

Nasdaq · Healthcare · Medical Devices

$1.28−17.42%as of Oct 6, 2026, 4:35 AM ET

Market cap
$280M
52-week range
$0.69 – $3.10
52-week change
−12.43%
EPS (trailing)
−$0.45
Analyst rating
1.7 Buy
Next earnings
Nov 5, 2026

Fiscal year to Dec 2025

Revenue
$2.4M (−20.34%)
Net income
−$101M
Operating margin
−4766.0%
Diluted EPS
−$0.51
Free cash flow
−$97.2M

From the company’s annual report on SEC EDGAR.

About Quantum-Si incorporated

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-based solution that automates data analysis workflows and visualizes the sequencing results. The company was founded in 2013 and is headquartered in Branford, Connecticut.

Headquarters: Branford, United States · 145 employees · quantum-si.com