ATLASATLAS fair value
ATLAS has no fair value for this stock today.
Quantum-Si (QSI)
Quantum-Si stock price today, ATLAS forecast and fair value
Healthcare · Medical Devices · NASDAQ
$1.66▲ +13.70%
Prices as of Oct 27, 2026 · USD
Chance of rising in 1 month
41%
that it ends higher than today in 21 sessions
0%coin flip 50%100%
This is just the summary. See everything on Quantum-Si in ATLAS
ATLAS's own quantitative analysis, all in one place.
- Simulation and expected rangeThousands of simulated scenarios: how far the price could rise or fall.
- Officers and shareholdersWho runs the company and which funds hold its shares.
- Customer and supplier mapWho it does business with, from its own filings.
- ATLAS builds your portfolioAnswer a short test and get portfolios that fit you.
- AlertsWe let you know when something changes in your stocks.
See everything included
- Valuation and financialsFair value step by step, quarterly accounts and upcoming events.
- NewsThe latest on the company, in one place.
- Crisis simulatorHow your portfolio would do in a crash like 2008.
- Practice risk-free$10,000 in virtual money to invest at real prices.
- Global screenerSearch US stocks and stocks from 47 countries with filters.
On Quantum-Si
- Simulation and expected rangeThousands of simulated scenarios: how far the price could rise or fall.
- Officers and shareholdersWho runs the company and which funds hold its shares.
- Customer and supplier mapWho it does business with, from its own filings.
- Valuation and financialsFair value step by step, quarterly accounts and upcoming events.
- NewsThe latest on the company, in one place.
And for you
- ATLAS builds your portfolioAnswer a short test and get portfolios that fit you.
- AlertsWe let you know when something changes in your stocks.
- Crisis simulatorHow your portfolio would do in a crash like 2008.
- Practice risk-free$10,000 in virtual money to invest at real prices.
- Global screenerSearch US stocks and stocks from 47 countries with filters.
Plans from €3.99 a month.
ATLAS's model gives Quantum-Si a 41% chance of finishing higher a month from now (21 trading sessions) than today: somewhat worse than a coin flip.
In half of the simulated outcomes the price ends between $1.18 and $1.97; in 9 out of 10, between $0.75 and $3.09. Estimated annual volatility is 162%.
Price, last 12 months (weekly close)
Key numbers
- Market cap
- $338M
- 52-week high
- $2.23
- 52-week low
- $0.69
- Revenue (12 months)
- $1.6M
- Revenue growth (YoY)
- -20.3%
- Gross margin
- 47.3%
- Return on equity
- -49.1%
- Free cash flow (12 months)
- $-50.1M
- Beta
- 3.25
What this means
ATLAS does not publish a fair value for QSI right now, but it does show its odds of rising: somewhat worse than a coin flip.
Over the last 52 weeks QSI has traded between $0.69 and $2.23. Today it is 25.6% below that high and 141% above its low.
Its beta is 3.25: it tends to move more than the market, both up and down.
About the company
Quantum-Si Incorporated Class A Common Stock represents ownership in Quantum-Si Incorporated, a life sciences company focused on proteomics and single-molecule protein analysis.
Want to see everything about Quantum-Si?
Get started →Plans from €3.99 a month.
Comparable companies
Other companies in the same line of business:
Frequently asked questions
What does Quantum-Si do?
Quantum-Si Incorporated Class A Common Stock represents ownership in Quantum-Si Incorporated, a life sciences company focused on proteomics and single-molecule protein analysis.
What is the chance QSI goes up next month?
41%: somewhat worse than a coin flip. In half of the simulated outcomes, QSI ends the month between $1.18 and $1.97.
How big is Quantum-Si and what is its P/E ratio?
Quantum-Si's market capitalization is $338M. We do not show a P/E because it has no positive earnings to base one on.
How volatile is QSI?
ATLAS estimates annual volatility at 162%. In a typical month, half of the outcomes end between $1.18 and $1.97.
Not investment advice. ATLAS estimates are produced by statistical models from public data; they can be wrong and past performance does not predict future results. Consider your own situation before investing. Disclaimer