Masimo Corporation (MASI) P/E Ratio History
Historical price-to-earnings valuation from 2007 to 2026
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MASI Valuation Context
How does the current P/E compare to historical and market benchmarks?
P/E Ratio Analysis
As of May 6, 2026, Masimo Corporation (MASI) trades at a price-to-earnings ratio of -63.7x, with a stock price of $178.49 and trailing twelve-month earnings per share of $1.45.
The current P/E is 193% below its 5-year average of 68.6x. Over the past five years, MASI's P/E has ranged from a low of 39.2x to a high of 122.3x, placing the current valuation at the 0th percentile of its historical range.
Compared to the Healthcare sector median P/E of 22.1x, MASI trades at a 388% discount to its sector peers. The sector includes 242 companies with P/E ratios ranging from 0.0x to 178.0x.
Relative to the broader market, MASI trades at a notable discount to the S&P 500 median P/E of 25.2x. Investors should consider the company's growth prospects, competitive position, and earnings quality when evaluating whether the current valuation is justified.
For a comprehensive intrinsic value estimate using discounted cash flow analysis, see our MASI DCF Valuation Calculator →
Note: P/E ratio is just one valuation metric. It does not account for balance sheet strength, cash flow quality, or growth sustainability. Always conduct comprehensive due diligence before making investment decisions.
MASI P/E vs Peers
P/E ratio compared to closely matched public peers
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $11B | 43.4 | 0.42 | -40% | |
| $17B | 30.5 | - | -25% | |
| $3B | 29.9 | 6.78 | -15% | |
| $3B | 3986.3 | - | +101% | |
| $2B | 6.8Lowest | 0.66 | +817%Best | |
| $5B | 94.5 | 28.67 | -17% | |
| $4B | 28.9 | - | +5% | |
| $3B | 21.9 | 0.16Best | +26% |
Peers sorted by market capitalization. P/E below peers may indicate undervaluation or lower growth expectations. Consider PEG ratio for growth-adjusted comparison.
MASI Historical P/E Data (2007–2026)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Date | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2026 Q1 | Sat Apr 04 2026 00:00:00 GM | $178.59 | $1.46 | 122.3x | +209% |
| FY2024 Q3 | Sat Sep 28 2024 00:00:00 GM | $133.20 | $1.45 | 91.9x | +132% |
| FY2024 Q2 | Sat Jun 29 2024 00:00:00 GM | $125.94 | $1.47 | 85.7x | +116% |
| FY2024 Q1 | Sat Mar 30 2024 00:00:00 GM | $146.85 | $1.47 | 99.9x | +152% |
| FY2023 Q4 | Sun Dec 31 2023 00:00:00 GM | $117.21 | $1.51 | 77.6x | +96% |
| FY2023 Q3 | Sat Sep 30 2023 00:00:00 GM | $87.68 | $1.63 | 53.8x | +36% |
| FY2023 Q2 | Sat Jul 01 2023 00:00:00 GM | $164.55 | $2.13 | 77.3x | +95% |
| FY2023 Q1 | Sat Apr 01 2023 00:00:00 GM | $184.54 | $2.17 | 85.0x | +115% |
| FY2022 Q4 | Sat Dec 31 2022 00:00:00 GM | $147.95 | $2.59 | 57.1x | +44% |
| FY2022 Q3 | Sat Oct 01 2022 00:00:00 GM | $141.16 | $3.02 | 46.7x | +18% |
| FY2022 Q2 | Sat Jul 02 2022 00:00:00 GM | $135.90 | $3.32 | 40.9x | +3% |
| FY2022 Q1 | Sat Apr 02 2022 00:00:00 GM | $151.71 | $3.87 | 39.2x | -1% |
Average P/E for displayed period: 39.6x
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Start ComparisonMASI — Frequently Asked Questions
Quick answers to the most common questions about buying MASI stock.
Is MASI stock overvalued or undervalued?
MASI trades at -63.7x P/E, below its 5-year average of 68.6x. At the N/A percentile of historical range, the stock is priced at a discount to its own history.
How does MASI's valuation compare to peers?
Masimo Corporation P/E of -63.7x compares to sector median of 22.1x. The discount suggests lower growth expectations or higher risk.
What is MASI's PEG ratio?
MASI PEG ratio is N/A. Above 2.0 indicates premium valuation relative to growth rate. Historical P/E data spans 2007-2026.