Based on the most recent data from Aug 21, 2026, MKSI's PEG ratio comes in at 0.65. This metric factors in a PE of 42.74 with an earnings growth rate of 65.3%. Relative to the 0.7 average from the past 4 quarters, the PEG ratio is down by 7%.
Looking at the last ten years, MKSI's PEG ratio has settled around 0.89 on average. At 0.65, today's PEG ratio sits 27% lower than its historical average. Within the last ten years, the Jun 2024 quarter recorded the highest PEG value at 9.28. At 0.01, the Jun 2025 quarter showed the minimum PEG ratio in this period.
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| 2025 | 0.65 | 36.4 | 55.7% |
| 2024 | 0.34 | 37.02 | 110.2% |
| 2023 | N/A | N/A | -594.4% |
| 2022 | N/A | 15.21 | -44% |
| 2021 | 0.31 | 17.5 | 56.4% |
| 2020 | 0.16 | 23.66 | 147.5% |
| 2019 | N/A | 42.81 | -64.4% |
| 2018 | 0.58 | 8.95 | 15.3% |
| 2017 | 0.07 | 15.1 | 219.4% |
| 2016 | N/A | 30.31 | -14.8% |
| 2015 | 2.61 | 15.65 | 6% |
| 2014 | 0.08 | 16.87 | 223.9% |
| 2013 | N/A | 44.66 | -26.4% |
| 2012 | N/A | 28.33 | -63.5% |
| 2011 | N/A | 11.17 | -12.6% |
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| Jun 2026 | 1.04 | 68.12 | 65.3% |
| Mar 2026 | 1.07 | 47.29 | 44.2% |
| Dec 2025 | 0.65 | 36.4 | 55.7% |
| Sep 2025 | 0.04 | 29.97 | 778.7% |
| Jun 2025 | 0.01 | 25.15 | 2,721.4% |
| Mar 2025 | 0.21 | 23.78 | 112.6% |
| Dec 2024 | 0.34 | 37.02 | 110.2% |
| Sep 2024 | 2.27 | 231.3 | 101.8% |
| Jun 2024 | 9.28 | 932.71 | 100.5% |
| Mar 2024 | N/A | N/A | -1,166.8% |
| Dec 2023 | N/A | N/A | -594.4% |
| Sep 2023 | N/A | N/A | -434.6% |
| Jun 2023 | N/A | N/A | -362.7% |
| Mar 2023 | N/A | 35.45 | -75.8% |
| Dec 2022 | N/A | 15.21 | -44% |
When comparing to historical data, MKSI's PEG ratio comes in under the 3, 5 and 10-year averages.
With a PEG of 0.65, MKSI stands below the industry and its peers average.
Among its peers, MKSI has a PEG ratio below stocks LRCX and AMAT, while higher than ROP's and AEIS's. With a PEG ratio of 0.65, MKS Instruments stands lower than the 0.75 peer average.
MKSI's Aug 21, 2026 PEG ratio comes in at 0.65.
MKSI shows a 3-year average PEG ratio of 1.66.
MKSI shows a 5-year average PEG ratio of 1.26.
In the last ten years, MKSI's peak PEG ratio of 9.28 was recorded in the Jun 2024 quarter.
MKSI currently has a PEG ratio 27% below its 10-year average.
Computing the PEG ratio involves dividing the PE ratio by the company's EPS growth rate (YoY TTM). As of Aug 21, 2026, MKS Instruments carries a P/E ratio of 42.74. Earnings grew at 65.3% over the TTM period ending Jun 2026. Applying the formula, this yields a price to earnings growth ratio of 0.65. PEG RATIO(0.65) = PE RATIO(42.74) / EPS GROWTH(65.3%)
All PEG ratio stats are based on quarterly TTM periods, unless otherwise specified.