How to Buy Quantum Si Stock
Quantum Si Inc
Quantum-Si incorporated, a life sciences company, develops a single molecule detection platform for sample preparation and sequencing.
Quantum Si stock last closed at $1.12, down 2.61% from the previous day, and has increased 15.35% in one year. It has overperformed other stocks in the Biotechnology industry by 0.69 percentage points. Quantum Si stock is currently +83.01% from its 52-week low of $0.61, and -80.59% from its 52-week high of $5.77.
There are currently 202.5M shares of QSI outstanding. The market capitalization of QSI is $226.79M. In the last 24 hours, 3.37M QSI shares were traded.
How to Buy Quantum Si Stock
Wondering how to invest in Quantum Si stock? Here's how.
- Figure out where to buy Quantum Si stock: You need to decide on an online brokerage, but don't worry - we've tried dozens of online brokerages and apps to help you choose where to buy Quantum Si stock.
- Open a brokerage account: Sign up for 0% commission trading with the highest-rated brokerage we've selected.
- Deposit money your brokerage account: Choose your method of payment and add your info.
- Research Quantum Si stock: The Quantum Si ticker symbol is QSI. Is Quantum Si stock a good investment? Should you buy shares of QSI? How do QSI's underlying business fundamentals look? Do top analysts think Quantum Si is a good buy? Why has QSI's stock price moved recently? (Hint: Our stock research tools can help you figure out if QSI is a good stock to buy).
- Execute your QSI trade: Decide if you will purchase QSI shares at the current market price or use a limit order to purchase QSI stock at a given price.
- Keep tabs on your QSI position: Create a watchlist to get the latest news on your position in Quantum Si shares.
Step 1: Figure out where to buy Quantum Si stock
You will need a brokerage account in order to access the NASDAQ market and buy QSI stock.
Our preferred brokerage: eToro
Based on our analysis, eToro is the best online stock brokerage. Here's why:
- You can invest in stocks with zero commissions: Invest without commissions.
- Buy fractional shares: Even if you can't afford a full share, you can still purchase the stock.
- Access to global financial markets: From Technology to Healthcare, New York to London (for US users, only US stocks are available) — you can fill your portfolio with stocks from the globe's top exchanges.
- Social investing: eToro offers a community with more than 20 million users worldwide. Talk to, learn from, and copy the unique crypto portfolios of top investors.
- Security: eToro is a regulated and licensed fintech leader.
- Buy other assets: Such as ETFs and cryptos.
Get $10 towards your purchase of shares by signing up for an account with eToro now. This offer is only for US users.
Open eToro AccountStep 2: Open a brokerage account
Now that you've picked the best brokerage, it's time to fill out some personal details so you can buy QSI today.
How to Start a New Brokerage Account on eToro
- Click here to get started.eToro is a multi-asset investment platform. The value of your investments may go up or down. Your capital is at risk.
- Enter your personal info to open your new brokerage account.
- Submit your application by hitting the "Create Account" button. Get started with eToro today
Step 3: Deposit money your brokerage account
Now that you have opened your account on the best stock buying app, you can securely and quickly fund your account:
Check out the walkthrough below if you need help transferring money into your new brokerage account.
Step 4: Research Quantum Si stock
After you have identified the best place to buy Quantum Si stock, it's very important to evaluate their stock prior to buying, so you truly understand the risk and opportunity.
Overview of key QSI info
Quantum Si Fundamentals
WallStreetZen was designed to help average investors perform more in-depth fundamental analysis quickly.
You can view all of the due diligence checks on QSI's stock page.
Is QSI stock undervalued or overvalued?
Analysts use many financial metrics, analyses, models, and charts to gauge QSI's fair value.
Using relative valuations metrics:
- QSI may be undervalued based on its P/B ratio of 1.03x, relative to Biotechnology industry P/B ratio of 4.56x
You can access additional valuation analysis on QSI's stock here.
A quick look at QSI Financials
Signs that QSI is financially healthy:
- There are more short-term assets than long-term liabilities on the QSI balance sheet.
- Total QSI debt is lower than 5 years ago, relative to shareholder equity.
- QSI has a low debt to equity ratio of 0.15.
- QSI has cash burn of 96429000. It has enough cash and short-term investments to cover this for at least one year.
- There are more short-term assets than short-term liabilities on the QSI balance sheet.
- QSI has $214.21M in cash and short term investments. This is sufficient to cover its annual cash burn of $96.43M.
Signs that QSI is not financially healthy:
- QSI profit margin has gone up by 21.3 percentage points in the past year, but the company is still unprofitable.
You can dive deeper into what analysts are projecting on the Quantum Si stock forecast page.
QSI Technical Indicators
QSI Performance Numbers
Last year, QSI revenue was $3.41M. In the last two year, QSI's revenue has increased by 172.65% per year. This was faster than the Biotechnology industry average of 67.2%.
Find out more about QSI's earnings and revenue performance here.
Are QSI insiders buying or selling the stock?
In the past 12 months, executives and large shareholders at QSI have sold more shares than they have bought.
Jeffrey Alan Hawkins, President CEO of QSI, was the latest QSI insider to sell. They sold $38,259.87 worth of QSI stock on Jun 23, 2025.
Dig into more about who owns QSI stock here.
Can I get consistent income from QSI stock?
No, Quantum Si doesn't provide an income stream by paying out dividends.
QSI Social Trading Data
One of the biggest reasons eToro is our highest-rated brokerage is because of its social trading community.
Click below to learn what other community members have to say.
Step 5: Execute your QSI trade
There are two primary order types:
- Market order: A market order is an order to buy or sell a security at the best available price.
Market orders are mostly fine for most investors. - Limit order: A limit order enables you to buy or sell a security at a specific price (or better).
If you want to ensure you're buying or selling at an exact dollar amount limit, place a limit order.
Hit the Open Trade button and your broker will place the order.
If you need more help with buying stocks on eToro, watch the how to video below:
Step 6: Keep tabs on your QSI position
Now that you own some QSI stock, you'll want to keep up with your investment.
Start a watchlist to track your QSI stock.
QSI Feed
How to Buy Stock in Quantum Si
To reiterate, here are the 6 steps for buying Quantum Si stock:
- Figure out where to buy Quantum Si stock
- Open a brokerage account
- Deposit money your brokerage account
- Research Quantum Si stock
- Execute your QSI trade
- Keep tabs on your QSI position
If you require a brokerage, eToro is our favorite option.
Get Started with eToro TodayIf you want to monitor your investment in Quantum Si, create a watchlist on WallStreetZen today.
Other Content You Might Like
FAQ
Company
AboutNewsBlogStock Investing FAQPlansPrivacy PolicyTerms of ServiceCancellation & RefundsPerformanceHelp GuidesContactTwitterYouTubeNewsletterInformation is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.