1.05 USD
↘ 0.23 (17.97%)AT CLOSE (11:59 AM EDT)
Quantum-Si Incorporated Class A Common Stock
QSINASDAQ • USD
1.04
↘ 0.01 (0.95%)
POST MARKET (AS OF 07:59 PM EDT)
Post Market
AS OF 07:59 PM EDT
1.04
↘ 0.01 (0.95%)
Market: CLOSED
Open?$1.25
High?$1.25
Low?$1.01
Prev. Close?$1.28
Volume?8.9M
Avg. Volume?6.7M
VWAP?$1.10
Rel. Volume?1.34x
Bid / Ask
Bid?$1.04 × 6.1K
Ask?$1.06 × 3.0K
Spread?$0.02
Midpoint?$1.05
Valuation & Ratios
Market Cap?228.6M
Shares Out?197.8M
Float?168.4M
Float %?85.1%
P/E Ratio?N/A
P/B Ratio?1.14
EPS?-$0.48
Dividend?0.00%
Ex-Dividend?N/A
QSI is currently priced at $1.05. The stock presents a mixed profile: our models indicate a Buy for technical indicators, while underlying fundamentals flash a Sell. Notable factors include a robust Altman Z-Score, a weak Piotroski F-Score of 0/9, negative Return on Equity and a bearish Death Cross on the long-term moving averages. Valuation metrics place QSI at a fair price relative to peers.
Technical & fundamental data as of Jun 5, 2026.
News
Profile
Quantum-Si Inc is a life sciences company focused on proteomics research and analytical technologies. It develops single-molecule detection platforms designed to enable next-generation protein sequencing (NGPS) and large-scale protein analysis. Its technology supports massively parallel sequencing of proteins and can also be applied to the study of nucleic acids, providing tools for researchers and clinical applications in molecular analysis. The company's revenue is derived from sales of products and services.
Themes
Employees
145
Market Cap
278.7M
Industry
MEASURING & CONTROLLING DEVICES, NEC
Website
Listed
2021-06-11
Address
29 BUSINESS PARK DRIVE
BRANFORD, CT 06405
Phone: (203) 458-7100
BRANFORD, CT 06405
Phone: (203) 458-7100
Technical OutlookBuy
Strong SellNeutralStrong Buy
Long-Term (Tide)?▲ Bullish(+1/3)
Medium-Term (Wave)?▲ Bullish(+1/3)
Short-Term (Ripple)?▼ Bearish(-2/3)
MA Alignment?Mixed
Full Technical Analysis →Fundamental OutlookSell
Strong SellNeutralStrong Buy
F-Score?3
Z-Score?98
Momentum?3
Short Sent.?60
Piotroski F-Score?0/9Weak
Altman Z-Score?5.07Safe
Confidence?46%Low
Short InterestHigh
Short % of Float?13.81%High
Short Interest?23.3M
Days to Cover?3.9
Free Float168.4M
Avg Daily Volume6.0M
Settlement Date2026-05-15
Financial Health
Current Ratio?12.60Strong
Quick Ratio?12.40Strong
Cash Ratio?3.38Strong
Debt/Equity?0.00Low
ValuationFAIRLY VALUEDvs 1 peers + S&P 500
Score67/100
P/E?N/A▾
P/B?1.14CHEAP▾
Peers100
S&P94
P/S?123.46HIGH▾
Peers100
S&P3
P/FCF?N/A▾
EV/EBITDA?-1.7CHEAP▾
S&P97
EV/Sales?103.91HIGH▾
Peers100
S&P3
Returns & Efficiency
ROE?-51.7%WEAK▾
S&P3
ROA?-48.7%WEAK▾
S&P3
Cash Flow & Enterprise
FCF?$-95690000
Enterprise Value?$192.4M
Fundamentals ratios updated end of day