How to Buy Masimo Stock
Masimo Corp
Masimo Corporation develops, manufactures, and markets noninvasive monitoring technologies and hospital automation solutions worldwide.
Masimo stock last closed at $178.31, down 0.11% from the previous day, and has increased 16.1% in one year. It has overperformed other stocks in the Medical Devices industry by 0.8 percentage points. Masimo stock is currently +41.58% from its 52-week low of $125.94, and -0.39% from its 52-week high of $179.00.
As of May 8, 2026, there are 52.37M MASI shares outstanding. The market capitalization of MASI is $9.34B. In the past 24 hours, 652,000 MASI shares were traded.
How to Buy Masimo Stock
Wondering how to invest in Masimo stock? Here's how.
- Choose where to buy Masimo stock: You need to decide on an online brokerage, but don't worry - we've researched dozens of online stock brokerages and apps to help you choose where to buy Masimo stock.
- Open a brokerage account: Sign up for 0% fee trading with the highest-rated brokerage we've selected.
- Deposit money your investment account: Select your payment method and add your info.
- Evaluate Masimo stock: The Masimo ticker symbol is MASI. Is Masimo stock a good investment? Should you buy shares of MASI? How do MASI's underlying business fundamentals look? Do top analysts think Masimo is a good buy? Why has MASI's stock price moved recently? (Hint: Our stock research website can help you evaluate if MASI is a good stock to buy).
- Make your MASI buy order: Decide if you will purchase MASI shares at the current market price or use a limit order to purchase MASI stock at a given price.
- Get the latest scoop on your MASI position: Create a watchlist to important notifications about your new investment in Masimo shares.
Step 1: Choose where to buy Masimo stock
You need an online brokerage account to access the NASDAQ market and buy MASI shares.
Our preferred brokerage: eToro
Based on our experience, eToro is the best brokerage. Here's why:
- You can invest in stocks with zero commissions: Invest without paying trading commissions.
- Buy fractional shares: Even if you can't afford a full share, you can still invest in the stock.
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- Social investing: eToro offers a community with more than 20 million users worldwide. Talk to, learn from, and copy the unique crypto portfolios of other investors.
- Security: eToro is a regulated and licensed brokerage platform.
- Buy other financial assets: Such as ETFs and cryptos.
Get $10 towards your purchase of shares by opening 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 your brokerage, you'll need to fill out some personal details so you are able to invest in MASI stock today.
How to Create 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 trading account.
- Submit your information by pressing the "Create Account" button. Get started with eToro today
Step 3: Deposit money your investment account
Now that you've finished signing up on a investment app, you can securely and quickly fund your account:
Watch the video below if you need help transferring funds into your new investment account.
Step 4: Evaluate Masimo stock
After you have identified the best place to buy Masimo stock, it's important to research their stock before you invest, so you can wrap your head around the risk and opportunity.
Masimo stock data
MASI Due Diligence Score
WallStreetZen was created to help average investors perform better fundamental analysis quickly.
You can see all of the due diligence checks on MASI's stock page.
How is MASI stock valued?
Analysts use a variety of different financial metrics, analyses, models, and charts to gauge MASI's true value.
Using relative valuations metrics:
- MASI may be overvalued based on its P/E ratio of 125.57x, relative to Medical Devices industry P/E ratio of 21.72x
- MASI may be overvalued based on its P/B ratio of 11.84x, relative to Medical Devices industry P/B ratio of 2.91x
- MASI could be overvalued based on its PEG ratio of 1.68x
You can access more valuation analysis on MASI's stock here.
Is MASI a healthy company?
Positive Financial Indicators:
- There are more short-term assets than long-term liabilities on the MASI balance sheet.
- MASI's operating cash flow of $232.00M allows it to safely service it's debt of $445.70M.
- There are more short-term assets than short-term liabilities on the MASI balance sheet.
- MASI profit margin has gone up from -29.8% to 4.9% in the past year.
- MASI earnings of $135.10M is not enough to cover its interest payments.
Negative Financial Indicators:
- MASI has a relatively high debt to equity ratio of 1.08.
- Total MASI debt is higher than 5 years ago, relative to shareholder equity.
Is MASI stock a Buy, Hold, or Sell, according to analysts?
Out of 3 Equities analysts who track MASI, the consensus analyst rating on Masimo is a Buy
It's important to note that analyst forecasts are not stock recommendations, nor are they financial advice.
You can dive deeper into what analysts are projecting on the Masimo stock forecast page.
Metrics for Advanced MASI Traders
Is MASI Growing Revenue?
Last year, MASI earnings were $76.30M. Over the past 5 year, MASI's earnings have gone up by -19.38% per year. This was slower than the Medical Devices industry average of 22.04%.
Last year, MASI revenue was $1.56B. During the past five year, MASI's revenue has gone up by 5.84% per year. This was slower than the Medical Devices industry average of 10.58%.
You can analyze MASI's earnings and revenue performance here.
What are MASI executives and large shareholders up to?
Over the last year, insiders at MASI have bought more shares than they have sold.
Elisabeth A. Hellmann, Chief Human Resources Officer of MASI, was the latest MASI insider to sell. They sold $21,590.03 worth of MASI stock on Apr 21, 2026.
Learn more about who owns MASI stock here.
Can I rely on MASI as an income stream?
No, Masimo doesn't provide an income stream by paying out dividends.
MASI Social Trading Data
One of the major reasons eToro is our highest-rated brokerage is because of its social trading community.
Click below to find out what other investors have to say.
Step 5: Make your MASI buy order
You have two primary types of orders:
- Market order: A market order is an order to buy or sell a security at the best possible price.
Market orders are usually the best for newer investors. - Limit order: A limit order is an order to buy or sell a stock at a specific price (or better).
If you want to be certain you're buying or selling at an exact price, use a limit order.
Click the Open button and your broker will place your order.
If you require more help with buying stocks on eToro, watch the helpful video below:
Step 6: Get the latest scoop on your MASI position
Now that you own some shares in MASI, you'll want to keep up with your new shares.
Put MASI on a watchlist to track the most important metrics related to your MASI stock.
MASI Feed
How to Buy Stock in Masimo
To summarize, here are the 6 steps to buy stock in Masimo:
- Choose where to buy Masimo stock
- Open a brokerage account
- Deposit money your investment account
- Evaluate Masimo stock
- Make your MASI buy order
- Get the latest scoop on your MASI position
If you need a place to buy stocks, eToro is our favorite venue.
Get Started with eToro TodayIf you would like to keep track of your new investment in Masimo, click below.
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