Why Masimo Corporation’s (MASI) Stock Is Down 8.86%

By Jenna Brashear
May 07, 2025
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Avoid the stress of overpaying for a stock or missing an opportunity by using the right tools and insights to evaluate Masimo Corporation before investing.

In this article, we go over a few key elements for understanding Masimo Corporation’s stock price such as:

  • Masimo Corporation’s current stock price and volume
  • Why Masimo Corporation’s stock price changed recently
  • Upgrades and downgrades for MASI from analysts
  • MASI’s stock price momentum as measured by its relative strength

About Masimo Corporation (MASI)

Before we jump into Masimo Corporation’s stock price, history, target price and what caused it to recently dip, let’s take a look at some background.

Masimo Corporation develops, manufactures, and markets various patient monitoring technologies, and automation and connectivity solutions worldwide. The company offers masimo signal extraction technology (SET) pulse oximetry with measure-through motion and low perfusion pulse oximetry monitoring to address the primary limitations of conventional pulse oximetry; Masimo rainbow SET platform, including rainbow SET Pulse CO-Oximetry products that allows noninvasive monitoring of oxygen, carboxyhemoglobin, methemoglobin, hemoglobin, fractional arterial oxygen saturation, pleth variability index, rainbow pleth variability index, respiration rate from the pleth, and oxygen reserve index, as well as acoustic respiration monitoring, NomoLine capnography and gas monitoring, and regional oximetry. It also provides brain function and hemodynamic monitoring solutions; patient position and activity tracking, and neuromodulation technology solutions; and Masimo Hospital Automation platform, including hospital automation solutions, including Patient SafetyNet, SafetyNet, Replica, Iris, MyView, UniView, Uniview: 60, Masimo Sleep, Centroid, and Bridg; and nasal high-flow respiratory support therapy, neuromodulation technology, and telehealth solutions. In addition, the company provides its products through direct sales force, distributors, and original equipment manufacturers partners to hospitals, emergency medical service and home care providers, long-term care facilities, physician offices, veterinarians, and consumers; and home wellness products through e-commerce internet sites, such as masimopersonalhealth.com, amazon.com, and shopify.com. Masimo Corporation was incorporated in 1989 and is headquartered in Irvine, California.

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Masimo Corporation’s Stock Price as of Market Close

As of May 07, 2025, 12:31 PM, CST, Masimo Corporation’s stock price was $149.155.

Masimo Corporation is down 7.63% from its previous closing price of $161.470.

During the last market session, Masimo Corporation’s stock traded between $142.800 and $150.730. Currently, there are approximately 53.60 million shares outstanding for Masimo Corporation.

Masimo Corporation’s trailing earnings per share are negative, so the stock does not have a meaningful P/E ratio. We suggest investors evaluate other financial metrics to understand its overall valuation.

Masimo Corporation Stock Price History

Masimo Corporation’s (MASI) price is currently down 7.33% so far this month.

During the month of May, Masimo Corporation’s stock price has reached a high of $168.620 and a low of $142.800.

Over the last year, Masimo Corporation has hit prices as high as $194.880 and as low as $101.610. Year to date, Masimo Corporation’s stock is down 9.77%.

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What Caused Masimo Corporation Stock’s Price to Dip?

Stock prices are primarily based on seller supply and buyer demand. But have you ever wondered about what other factors affect a stock's price?

One of the most common factors that can drastically impact a stock’s price is analyst upgrades and downgrades. When an analyst changes their opinion of a stock by upgrading or downgrading their rating, it often leads to a sudden stock price adjustment. However, as of May 06, 2025,, no analysts have changed their rating of Masimo Corporation’s stock over the last month.

Additionally, you'll want to evaluate Masimo Corporation’s financial health and valuation. Investors can use AAII's Value Grade, which combines six key valuation metrics like P/E and P/S ratios for a comprehensive analysis to conduct analysis on Masimo Corporation’s valuation and financial health. This approach mitigates the limitations of single-metric evaluations.

Masimo Corporation’s current valuation based on AAII’s Value Grade is a F, which means it is considered to be Ultra Expensive.

Learn how to evaluate stocks with AAII Grades and Scores with A+ Investor today.

Lastly, news and media coverage as well as recent press reports about the company or its industry may cause stock prices to fluctuate. You can check out the most recent news articles about Masimo Corporation (MASI) by visiting AAII Stock Evaluator.

Relative Price Strength of Masimo Corporation

Relative price strength measures a stock's performance against the market, helping investors identify stocks that are outperforming benchmarks.

For AAII’s Momentum Grade, a weighted relative price strength is calculated. Follow this link to learn more about the Momentum Grade.

As of May 06, 2025, Masimo Corporation has a weighted four-quarter relative price strength of 2.63%, which translates to a Momentum Score of 67 and is considered to be Strong.

Want to learn more about how Masimo Corporation is graded based on AAII’s composite scores for value, growth, quality and earnings estimate revisions? Subscribe to A+ Investor today.

Masimo Corporation Stock Price: Bottom Line

As of May 7, 2025, Masimo Corporation’s stock price is $149.155, which is down 7.63% from its previous closing price.

AAII advises against making stock decisions based solely on price or past returns. Instead, consider a variety of metrics, fundamentals, and analytics to evaluate a stock like Masimo Corporation stock prices are influenced by market supply and demand and offer just a snapshot of a company's overall health.

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