Start with its own history
At 44.43×, MASI is 7.1% below its 8-observation annual average. A lower multiple can reflect a lower price, higher earnings, or weaker growth expectations—not necessarily a bargain.
NASDAQ · MASIMedical - DevicesUpdated Oct 25, 2026
Masimo Corporation P/E ratio
Current valuation, historical context, and peer comparisons.
Current P/E ratio
44.43×
7.1% belowthe 8-observation annual average
Share price179.95
÷Earnings per share4.05
Price and EPS in quote currency. Calculation details
Investors are paying 44.43 for every 1 of reported earnings per share.
P/E over time
2016 – 2026
Annual P/ESelected-period average 47.85×
3-year average76.11×1 positive annual observations
5-year average67.23×3 positive annual observations
10-year average47.85×8 positive annual observations
Peer median · TTM34.16×5 peers with positive P/E
Historical P/E ratios
Annual period-end data · 19 observations
| Period end | P/E | Change |
|---|---|---|
| Jan 3, 2026 | N/M | N/M |
| Dec 28, 2024 | N/M | N/M |
| Dec 31, 2023 | 76.11× | +37.9% |
| Dec 31, 2022 | 55.21× | -21.6% |
| Dec 31, 2021 | 70.38× | +15.1% |
| Dec 31, 2020 | 61.13× | +41.9% |
| Dec 31, 2019 | 43.07× | +38.4% |
| Dec 31, 2018 | 31.12× | -11.2% |
View all 19 annual observations +
| Period end | P/E | Change |
|---|---|---|
| Dec 31, 2017 | 35.04× | +226.5% |
| Dec 31, 2016 | 10.73× | -58.1% |
| Dec 31, 2015 | 25.62× | +29.4% |
| Dec 31, 2014 | 19.80× | -30.2% |
| Dec 31, 2013 | 28.38× | +45.9% |
| Dec 31, 2012 | 19.45× | +11.4% |
| Dec 31, 2011 | 17.46× | -24.9% |
| Dec 31, 2010 | 23.26× | -29.7% |
| Dec 31, 2009 | 33.07× | -36.8% |
| Dec 31, 2008 | 52.33× | -5.8% |
| Dec 31, 2007 | 55.56× | N/M |
Change is relative to the preceding observation. N/M values are excluded from averages.
How MASI compares
Company P/E vs. peer trailing-12-month ratios
| Company | P/E ratio |
|---|---|
 MASI This stockMasimo Corporation | 44.43× |
 AVTRAvantor, Inc. | 31.46× |
 ATRAptarGroup, Inc. | 34.16× |
 BAXBaxter International Inc. | N/M |
 ABVXAbivax S.A. | N/M |
 BIOBio-Rad Laboratories, Inc. | 44.67× |
 HSICHenry Schein, Inc. | 25.12× |
 RGENRepligen Corporation | N/M |
 STVNStevanato Group S.p.A. | 36.88× |
Peers are selected by the data provider. Business models and earnings definitions can differ.
Put the numbers in context
What does MASI’s P/E tell you?
Compare like with like
The median of the 5 positive peer ratios above is 34.16×. Check growth, margins, debt, and earnings quality before interpreting the gap. A faster-growing business may justify a higher multiple.
Check what drives earnings
One-off gains can temporarily lower P/E; unusual charges can raise it. Reported earnings and forward estimates answer different questions. Pair this view with return on equity and liquidity for a fuller picture.
Keep your research connected
Take MASI into your spreadsheet
Pull historical P/E into Excel or Google Sheets with Wisesheets. Build your own comparisons alongside the rest of your financial model.
Explore WisesheetsQuarterly P/E · latest quarterLQ selects the latest reported quarter. Requires the Wisesheets add-in. See available data
=WISE("MASI", "PE Ratio", "LQ")Sources & calculation methodology
Current P/E
Share price 179.95 ÷ EPS 4.05 = 44.43×. Data is supplied by Financial Modeling Prep through Wisesheets. Quote feed updated Oct 25, 2026; this is not a real-time trading quote.
History & averages
Annual and quarterly P/E observations are provided separately from the current quote. Averages use the latest 3, 5, or 10 annual observations, excluding missing and nonpositive ratios. Pre-IPO observations are omitted. These are period-end observations, not daily averages.
Data definitions and limitations
The current quote feed does not specify the exact EPS filing-period end or whether EPS is basic or diluted. We do not label it as forward P/E. Peer ratios are explicitly trailing-12-month (TTM) values. Historical observations do not include independently verified price and EPS inputs. Sources may update on different schedules; rounded inputs can produce small calculation differences. Historical comparisons describe past pricing, not an estimate of fair value.
MASI P/E ratio: common questions
The essentials behind the numbers.
Masimo Corporation's current P/E is 44.43× based on the quote data last updated Oct 25, 2026. It represents the share price divided by reported earnings per share. Prices and earnings may refresh on different schedules.
Annual P/E uses earnings for a completed fiscal year. Trailing-12-month (TTM) P/E uses the latest four quarters, while forward P/E uses forecast earnings. These are not interchangeable. This page labels peer ratios as TTM and shows dated annual or quarterly historical observations; it does not show forward estimates.
N/M means not meaningful: the feed has no positive P/E for that observation. Negative or zero earnings should not be ranked as a low positive valuation multiple. N/M observations are excluded from the averages shown above.
Divide the share price by earnings per share (EPS). For example, a share price of 100 and EPS of 5 gives a P/E of 20×. This page uses the price and EPS supplied together in the quote when both are positive.
Price timestamps, EPS definitions, share classes, adjustments, and fiscal periods can differ. A forward P/E also uses forecast earnings rather than reported earnings. Compare the inputs and as-of dates before comparing two displayed ratios.
Not necessarily. The average describes previous market pricing, not fair value. Changes in earnings quality, growth expectations, debt, accounting, and business risk can justify a different multiple today.