Quantum-Si Incorporated Class A Common Stock

QSINASDAQ • USD
1.40 USD
↗ 0.25 (21.74%)AT CLOSE (03:59 PM EDT)
1.41
↗ 0.02 (1.07%)
POST MARKET (AS OF 08:00 PM EDT)
Post Market
AS OF 08:00 PM EDT
1.41
↗ 0.02 (1.07%)
🔴Market: CLOSED

QSI is currently priced at $1.40. Technicals currently rate "Strong Buy" while our fundamental analysis reads "Neutral". Notable factors include a robust Altman Z-Score, a weak Piotroski F-Score of 2/9, negative Return on Equity, a bullish Golden Cross on the moving averages and bullish moving average alignment. Valuation metrics place QSI at a fair price relative to peers.

Technical & fundamental data as of Oct 23, 2026.

Open?$1.16
High?$1.42
Low?$1.15
Prev. Close?$1.15
Volume?11.5M
Avg. Volume?8.7M
VWAP?$1.33
Rel. Volume?1.31x
Bid / Ask
Bid?$1.41 × 6.3K
Ask?$1.42 × 400
Spread?$0.01
Midpoint?$1.42
Valuation & Ratios
Market Cap?306.4M
Shares Out?N/A
Float?168.4M
Float %?85.1%
P/E Ratio?N/A
P/B Ratio?1.70
EPS?-$0.45
Dividend?0.00%
Ex-Dividend?N/A
News
Profile
Quantum-Si Inc is a life sciences company focused on proteomics research and analytical technologies. It develops single-molecule detection platforms designed to enable next-generation protein sequencing (NGPS) and large-scale protein analysis. Its technology supports massively parallel sequencing of proteins and can also be applied to the study of nucleic acids, providing tools for researchers and clinical applications in molecular analysis. The company's revenue is derived from sales of products and services.
Employees
145
Market Cap
306.4M
Industry
MEASURING & CONTROLLING DEVICES, NEC
Listed
2021-06-11
Address
29 BUSINESS PARK DRIVE
BRANFORD, CT 06405
Phone: (203) 458-7100
Technical OutlookStrong Buy
Strong SellNeutralStrong Buy
Long-Term (Tide)?▲ Bullish(+2/3)
Medium-Term (Wave)?▲ Bullish(+1/3)
Short-Term (Ripple)?▲ Bullish(+3/3)
MA Alignment?Golden Alignment
Full Technical Analysis →
Fundamental OutlookNeutral
Strong SellNeutralStrong Buy
F-Score?
12
Z-Score?
100
Momentum?
10
Short Sent.?
71
Piotroski F-Score?2/9Weak
Altman Z-Score?7.16Safe
Confidence?51%Low
Full Fundamental Analysis →
Short InterestElevated
Short % of Float?7.02%Elevated
Short Interest?11.8M
Days to Cover?2.5
Free Float168.4M
Avg Daily Volume4.8M
Settlement Date2026-09-30
Financial Health
Current Ratio?9.97Strong
Quick Ratio?9.80Strong
Cash Ratio?1.98Strong
Debt/Equity?0.00Low
ValuationFAIRLY VALUEDvs 1 peers + S&P 500
Score
67/100
P/E?
N/A▾
P/B?
Peers
100
S&P
82
1.70CHEAP▾
P/S?
Peers
100
S&P
3
190.93HIGH▾
P/FCF?
N/A▾
EV/EBITDA?
S&P
97
-2.7CHEAP▾
EV/Sales?
Peers
100
S&P
3
176.19HIGH▾
Returns & Efficiency
ROE?
S&P
3
-54.7%WEAK▾
ROA?
S&P
3
-50.9%WEAK▾
Cash Flow & Enterprise
FCF?$-93688000
Enterprise Value?$282.8M
Fundamentals ratios updated end of day