Masimo

YTD

ALL

Why Robinhood?

Robinhood gives you the tools you need to put your money in motion. You can buy or sell Masimo and other ETFs, options, and stocks.

About MASI

Masimo Corp. is a global technology company, which engages in the development, manufacture, and marketing of patient monitoring technologies, and automation and connectivity solutions. Its products include remote patient monitoring, connectivity, and hospital automation solutions, including Masimo Patient SafetyNet, Masimo Patient SafetyNet Surveillance, Masimo SafetyNet, Masimo SafetyNet-Open, Replica, Iris, MyView, UniView, Uniview: 60, Trace, Masimo Sleep, Centroid, and Bridge.

CEO

Catherine M. Szyman

CEOCatherine M. Szyman

Employees

7,500

Employees7,500

Headquarters

Irvine, California

HeadquartersIrvine, California

Founded

1989

Founded1989

Employees

7,500

Employees7,500

MASI Key Statistics

Market cap

9.34B

Market cap9.34B

Price-Earnings ratio

-64.34

Price-Earnings ratio-64.34

Dividend yield

—

Dividend yield—

Average volume

659.07K

Average volume659.07K

High today

$178.60

High today$178.60

Low today

$178.37

Low today$178.37

Open price

$178.50

Open price$178.50

Volume

714.15K

Volume714.15K

52 Week high

$179.00

52 Week high$179.00

52 Week low

$125.94

52 Week low$125.94

Stock Snapshot

The current Masimo(MASI) stock price is $178.44, with a market capitalization of 9.34B. The stock trades at a price-to-earnings (P/E) ratio of -64.34.

On 2026-05-01, Masimo(MASI) stock moved within a range of $178.37 to $178.60. With shares now at $178.44, the stock is trading +0.0% above its intraday low and -0.1% below the session's peak.

Trading volume for Masimo(MASI) stock has reached 714.15K, versus its average volume of 659.07K.

Over the past 52 weeks, Masimo(MASI) stock has traded between a high of $179.00 and a low of $125.94.

MASI News

TipRanks 3d

Masimo announces findings of study of accuracy of Masimo SET pulse oximetry

Masimo (MASI) announced the findings of a study evaluating the accuracy of Masimo SET pulse oximetry among critically ill neonates and demonstrating less than 1...

The Motley Fool 7d

This Stock Is Up Over 52,700% Since Founding. Should Investors Buy After Its 36% Decline?

Danaher (DHR +0.02%) has been wildly successful for a long time. The stock has returned over 52,700% since its 1969 founding as DMG. Unfortunately, investors ma...

Analyst ratings

100%

of 8 ratings

Buy

Hold

100%

Sell

People also own

Based on the portfolios of people who own MASI. This list is generated using Robinhood data, and it’s not a recommendation.

Similar Marketcap

This list is generated by looking at the six larger and six smaller companies by market cap in relation to this company.

Popular Stocks

This list is generated by looking at the top 100 stocks and ETFs most commonly held by Robinhood customers and showing a random subset

Newly Listed

This list is generated by showing companies that recently went public.