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QUANTUM-SI INC
About QSI
Quantum-SI Incorporated is a life sciences company. The Company has designed and developed a hardware, consumable and software solution to provide a solution for protein detection and analysis. It has developed a proprietary universal single-molecule detection platform enables Next-Generation Protein Sequencing (NGPS), the ability to sequence proteins. Its launched product consists of Platinum, the Platinum Analysis Software and consumables. Its flagship protein sequencing instrument, Platinum, is designed to make the power of single-molecule detection and NGPS accessible. Platinum is designed to provide a streamlined workflow compared to legacy MS workflows. Platinum uses its proprietary semiconductor chip that leverages time-domain sequencing with an initial focus on NGPS for an unbiased view of the proteome.
Find out what a historical investment in QUANTUM-SI INC would be worth today using our QSI stock calculator.
Market Capitalisation
$193.83M
Price-earnings ratio
-
Dividend yield
0.00%
Volume
3.71M
High today
$0.91
Low today
$0.88
Open price
$0.91
52-week high
$3.10
52-week low
$0.69
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Open an accountHow do I buy QSI shares in Australia?
Buying QSI shares in Australia can be done through an online investing platform, such as Stake. Follow the simple steps below to start investing in QUANTUM-SI INC in minutes.
- Sign up with some I.D. and zero paperwork
- Add funds to your account
- Make your first investment in QSI
What is the ticker symbol of QUANTUM-SI INC?
The ticker symbol for QUANTUM-SI INC is QSI.
How much is one share of QSI?
One share of QSI is valued at $0.89 as of 16 May 2026.
What is the market capitalisation of QUANTUM-SI INC QSI?
As of 16 May 2026 QUANTUM-SI INC has a market cap of $193.83M.
What is the 52-week high for QUANTUM-SI INC stock?
The QUANTUM-SI INC 52-week high stock price is $3.10.
What is the 52-week low for QUANTUM-SI INC stock?
The QUANTUM-SI INC 52-week low stock price is $0.69.
Can I buy QSI shares through Stake, an investing platform like CommSec, Selfwealth or Superhero?
Yes, the Stake investing platform allows you to buy QSI shares and over 12,000 more stocks and ETFs across the ASX and Wall St.
This is not financial product advice nor a recommendation to invest in the securities listed. Past performance is not a reliable indicator of future performance. As always, do your own research and consider seeking financial, legal and taxation advice before investing. No representation is made as to the timeliness, reliability, accuracy or completeness of the market data provided.
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Stock shown for demonstrative purposes only. US$3 brokerage up to US$30,000.
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