Based on the latest data from Sep 22, 2026, INSP's PE to growth ratio sits at 0.1. This metric combines a PE of 15.53 with an earnings growth rate of 156.4%. Relative to the 0.43 average from the past four quarters, the PEG ratio has dropped by 76%.
Looking at the past three years, INSP's PEG ratio has has been around 0.97 on average. At 0.1, today's PEG ratio sits 90% less than its historical average. Within the past three years, the Jun 2024 quarter saw the highest PEG reading at 5.55. At 0.06, the Jun 2026 quarter represented the lowest PEG ratio in this timeframe.
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| 2025 | 0.11 | 18.63 | 175% |
| 2024 | 0.29 | 102.99 | 350% |
| 2023 | N/A | N/A | 55% |
| 2022 | N/A | N/A | -3.9% |
| 2021 | N/A | N/A | 29.7% |
| 2020 | N/A | N/A | -56.4% |
| 2019 | N/A | N/A | 6.7% |
| 2018 | N/A | N/A | 89.9% |
| 2017 | N/A | N/A | 12% |
| 2016 | N/A | N/A | 18.5% |
| 2015 | N/A | N/A | N/A |
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| Jun 2026 | 0.06 | 9.72 | 156.4% |
| Mar 2026 | 0.12 | 11.57 | 99.1% |
| Dec 2025 | 0.11 | 18.63 | 175% |
| Sep 2025 | 1.41 | 49.14 | 34.8% |
| Jun 2025 | 0.1 | 72.5 | 752.4% |
| Mar 2025 | 0.14 | 71.11 | 522.6% |
| Dec 2024 | 0.29 | 102.99 | 350% |
| Sep 2024 | 0.93 | 188.44 | 201.8% |
| Jun 2024 | 5.55 | 637.29 | 114.9% |
| Mar 2024 | N/A | N/A | 65.4% |
| Dec 2023 | N/A | N/A | 55% |
| Sep 2023 | N/A | N/A | 39.6% |
| Jun 2023 | N/A | N/A | 11.9% |
| Mar 2023 | N/A | N/A | 1.3% |
| Dec 2022 | N/A | N/A | -3.9% |
When comparing to historical data, INSP's PEG ratio is lower than the 3 and 5-year averages.
Inspire Medical Systems's PEG of 0.1 is lower than the Healthcare sector and the industry average. Looking at the Healthcare sector average of 0.55, Inspire Medical Systems's PEG is 82% lower.
Based on Sep 22, 2026 data, INSP has a PEG ratio of 0.1.
INSP has a 3-year average PEG ratio of 0.97.
INSP has a 5-year average PEG ratio of 0.97.
INSP's PEG ratio topped out at 5.55 during the Jun 2024 quarter - the highest in three years.
INSP currently has a PEG ratio 90% below its 3-year average.
The 0.1 PEG ratio for INSP reflects robust earnings growth outpacing the current valuation.
Computing the PEG ratio involves dividing the PE ratio by the company's earnings per share growth (YoY TTM). As of Sep 22, 2026, Inspire Medical Systems has a PE ratio of 15.53. Earnings grew at 156.4% over the TTM period ending Jun 2026. Applying the formula, this gives a PEG ratio of 0.1. PEG RATIO(0.1) = PE RATIO(15.53) / EPS GROWTH(156.4%)
All PEG ratio stats are based on quarterly TTM periods, unless otherwise specified.