QUANTUM-SI INC Share Price Today: Live Updates & Key Insights

QUANTUM-SI INC share price today is $0.8698, up -1.88%. The stock opened at $0.8613 against the previous close of $0.8613, with an intraday high of $0.874 and low of $0.8305.

QUANTUM-SI INC Share Price Chart

QUANTUM-SI INC

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QUANTUM-SI INC Share Price Performance

$0.8698 -0.0188(-1.88%) QSI at 23 Mar 2026 02:56 PM Medical Devices
Lowest Today 0.8305
Highest Today 0.874
Today’s Open 0.8613
Prev. Close 0.8613
52 Week High 3.10
52 Week Low 0.83
Day’s Range: Low 0.8305 High 0.874
52-Week Range: Low 0.83 High 3.10
1 day return -
1 Week return -10.24
1 month return -6.81
3 month return -32.59
6 month return -50.13
1 year return -41.99
3 year return -48.0
5 year return -93.3
10 year return -

QUANTUM-SI INC Institutional Holdings

BlackRock Inc 5.23

Vanguard Group Inc 4.44

ARK Investment Management LLC 3.25

ARK Genomic Revolution ETF 3.20

ARK Genomic Revolution 3.11

Sumitomo Mitsui Trust Group Inc 2.41

Vanguard Total Stock Mkt Idx Inv 2.25

Amova Asset Management Americas, Inc 2.17

Geode Capital Management, LLC 1.90

iShares Russell 2000 ETF 1.78

Amova ARK Pstv Chg Innovt P JPY Acc 1.71

State Street Corp 1.30

Citadel Advisors Llc 1.24

Susquehanna International Group, LLP 1.08

Northern Trust Corp 1.07

Vanguard Institutional Extnd Mkt Idx Tr 0.92

Fidelity Small Cap Index 0.72

Two Sigma Investments LLC 0.64

iShares Russell 2000 Value ETF 0.62

iShares Biotechnology ETF 0.59

State St Russell Sm/Mid Cp® Indx SL Cl I 0.57

Jane Street Group LLC 0.51

Fidelity Extended Market Index 0.44

Northern Small Cap Value 0.41

NT Quality Small Cap Value 0.41

Vanguard Russell 2000 ETF 0.35

Fosun International Ltd 0.34

Royal Bank of Canada 0.25

UBS Group AG 0.23

Vanguard Health Care ETF 0.23

Charles Schwab Investment Management Inc 0.22

Blackrock Extended Mkt Fund CF 0.22

State St Russell Sm Cap® Indx SL Cl I 0.21

Nuveen, LLC 0.21

iShares Core S&P Total US Stock Mkt ETF 0.19

iShares Micro-Cap ETF 0.19

Extended Equity Market Fund K 0.19

Bank of New York Mellon Corp 0.18

The Goldman Sachs Group Inc 0.18

Bank of America Corp 0.16

QUANTUM-SI INC Market Status

Strong Buy: 1

Buy: 1

Hold: 1

Sell: 0

Strong Sell: 0

QUANTUM-SI INC Fundamentals

Market Cap 182.85 M

PB Ratio 0.8405

PE Ratio 0.0

Enterprise Value 26.35 M

Total Assets 245.61 M

Volume 3813291

QUANTUM-SI INC Company Financials

Annual Revenue FY23:682000 0.7M, FY22:0 0.0M, FY21:0 0.0M, FY20:0 0.0M, FY19:0 0.0M

Annual Profit FY23:null 0.0M, FY22:null 0.0M, FY21:null 0.0M, FY20:null 0.0M, FY19:null 0.0M

Annual Net worth FY23:-107052000 -107.1M, FY22:-141043000 -141.0M, FY21:-88949000 -88.9M, FY20:-36612000 -36.6M, FY19:-35797000 -35.8M

Quarterly Revenue Q3/2025:552000 0.6M, Q2/2025:591000 0.6M, Q1/2025:842000 0.8M, Q3/2024:787000 0.8M, Q2/2024:622000 0.6M

Quarterly Profit Q3/2025:194000 0.2M, Q2/2025:351000 0.4M, Q1/2025:486000 0.5M, Q3/2024:367000 0.4M, Q2/2024:354000 0.4M

Quarterly Net worth Q3/2025:-35703000 -35.7M, Q2/2025:-28836000 -28.8M, Q1/2025:-19189000 -19.2M, Q3/2024:-25313000 -25.3M, Q2/2024:-23099000 -23.1M

About QUANTUM-SI INC & investment objective

Company Information 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.

Organisation Medical Devices

Employees 145

Industry Medical Devices

CEO Mr. Jeffrey Alan Hawkins

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QUANTUM-SI INC FAQs

What is the share price of QUANTUM-SI INC today?

The current share price of QUANTUM-SI INC is $0.8698.

Can I buy QUANTUM-SI INC shares in India?

Yes, Indian investors can buy QUANTUM-SI INC shares by opening an international trading and demat account with Motilal Oswal.

How to buy QUANTUM-SI INC shares in India?

You can easily invest in QUANTUM-SI INC shares from India by:

Can I buy fractional shares of QUANTUM-SI INC?

Yes, many platforms allow you to buy fractional shares starting from as low as $1.

What is the market capitalization value of QUANTUM-SI INC?

QUANTUM-SI INC has a market cap of $182.85 M.

In which sector does QUANTUM-SI INC belong?

QUANTUM-SI INC operates in the Medical Devices sector.

What documents are required to invest in QUANTUM-SI INC stocks?

To invest, you typically need:

What is the PE and PB ratio of QUANTUM-SI INC?

The PE ratio of QUANTUM-SI INC is N/A and the PB ratio is 0.84.