QSI

NASD Quantum-Si Incorporated Class A
Oct 22, 2026 · 6:37 AM ET LAST TRADE Market Closed

$1.22 ↓ -0.01 (-1.14%) Trading Down from the previous close of $1.23

YTD change
+10.55%
vs 20-day SMA
+1.24%
vs 200-day SMA
+27.52%

Price ranges

Previous day
$1.16 $1.23
open $1.16 close $1.23
+$0.07 (+6.03%)
Today
$0.00 $0.00
$1.22
Past week
$1.01 $1.39
from $1.39 now $1.22
-$0.17 (-12.52%)
Past month
$0.74 $1.66
from $0.76 now $1.22
+$0.46 (+60.27%)
This year
$0.69 $1.66
from $1.10 now $1.22
+$0.12 (+10.55%)

Price & Performance

+0.17 (+16.04%) / 6M

$0.6345$0.9623$1.29$1.62Apr 22Jul 23Oct 21

Signals & Sentiment

Momentum, market sentiment, and recent alerts

Neutral
  • The stock is 91.4% away from all-time highs of $14.17
  • QSI is up 11% since the beginning of the year
  • QSI is down 45% over the past 12 months
  • QSI is up 60% over the past 1 month
  • 7% of all QSI investors are betting against QSI

QSI reads neutral: price sits above both the 20- and 200-day averages, the 12-month move is -44.1%.

Financial Strength

Earnings, valuation, and balance sheet

Earnings

Profitable No
EPS $-0.11
Earnings momentum +9.0% Quarterly EPS growth
Quarterly change +9.0%

Valuation

P/E ratio N/A
Enterprise value $159.4M
Beta 3.31

Balance sheet & scale

IncomeN/A
Revenue$1.6M
Cash$111.7M
Debt$3.3K
Income / Debt N/A

Company & Peers

Company profile and competitor comparison

Company profile

ExchangeNASD
Sector Manufacturing
Sub Sector Computer and Electronic Product Manufacturing
Market cap $266.2M

Quantum-Si, Inc. is a life sciences company focused on revolutionizing the growing field of proteomics. It engages in the development of a proprietary universal single-molecule detection platform to enable Next-Generation Protein Sequencing (NGPS), the ability to sequence proteins in a massively parallel fashion. Its platform includes platinum NGPS instrument, platinum analysis software, and consumable kits for platinum instrument. The company was founded by Jonathan M. Rothberg on June 24, 2013 and is headquartered in Branford, CT.

Competitor comparison

TickerCompany PriceChange
TSM Taiwan Semiconductor Manufacturing Co., Ltd. Sponsored ADR $431.89 +1.60%
AVGO Broadcom Inc. $337.80 +1.03%
NVDA.CAT NVIDIA CORPORATION CDR CAD HED REGS $49.34 +2.45%
SKHY SK hynix Inc. Sponsored ADR $143.25 +2.48%
MU Micron Technology, Inc. $913.67 +1.96%

You looked up one stock
Trade Ideas watches them all

Real-time scanning and AI-generated signals across the entire market.

See plans TI Pro Download

Prices and alerts are delayed by at least 20 minutes. Chart history reflects daily closing prices. Information is provided for research purposes only and is not investment advice.