Seasonality
MKSI seasonality — MKS Instruments
Over the last 11 years, MKSI's strongest month on average has been January (+11.5%) and its weakest August (-5.8%).
Average return by month
Month-by-month statistics
| Month | Avg | Median | Up % | Best | Worst | Yrs |
|---|---|---|---|---|---|---|
| Jan | +11.51% | +8.39% | 80% | +47.3% | -10.8% | 10 |
| Feb | +0.17% | +0.53% | 50% | +15.3% | -18.9% | 10 |
| Mar | -0.46% | +1.73% | 50% | +12.4% | -18.7% | 10 |
| Apr | -0.91% | -4.38% | 30% | +23.5% | -24.0% | 10 |
| May | +6.53% | +7.37% | 90% | +17.2% | -21.5% | 10 |
| Jun | +3.38% | +5.18% | 60% | +37.2% | -17.7% | 10 |
| Jul | +0.78% | -0.24% | 50% | +24.3% | -33.1% | 10 |
| Aug | -5.77% | -6.06% | 10% | +8.6% | -15.7% | 10 |
| Sep | -0.34% | -3.04% | 50% | +19.8% | -17.0% | 10 |
| Oct | -1.82% | -0.68% | 30% | +17.3% | -24.1% | 10 |
| Nov | +7.91% | +6.47% | 78% | +27.3% | -13.2% | 9 |
| Dec | +3.25% | +2.70% | 80% | +24.6% | -17.6% | 10 |
Monthly returns heat map — MKSI
price return, %| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 47.3 | 3.8 | -6.0 | 23.5 | 14.3 | 37.2 | -33.1 | -13.8 | 3.6 | -23.9 | -4.8 | +20.3% | |
| 2025 | 8.5 | -18.9 | -12.7 | -12.5 | 17.2 | 20.9 | -4.2 | 8.6 | 19.8 | 16.1 | 8.8 | 2.2 | +53.1% |
| 2024 | 3.5 | 15.3 | 8.3 | -10.5 | 6.4 | 3.1 | -3.6 | -5.3 | -8.8 | -8.6 | 14.4 | -8.1 | +1.5% |
| 2023 | 20.8 | -5.3 | -8.6 | -5.4 | 16.0 | 11.1 | 1.0 | -8.2 | -13.7 | -24.1 | 25.7 | 24.6 | +21.4% |
| 2022 | -10.8 | -3.0 | -0.4 | -24.0 | 8.3 | -16.9 | 15.2 | -15.7 | -17.0 | -0.6 | 2.1 | 1.0 | -51.4% |
| 2021 | 5.1 | 4.3 | 12.4 | -3.4 | 5.1 | -5.5 | -12.1 | -5.9 | 2.5 | -0.6 | 1.4 | 14.5 | +15.8% |
| 2020 | -4.7 | -4.4 | -18.7 | 23.1 | 5.4 | 7.2 | 12.5 | -6.2 | -8.6 | -0.8 | 27.3 | 9.0 | +36.8% |
| 2019 | 26.3 | 1.5 | 12.3 | -2.2 | -21.5 | 9.0 | 9.3 | -8.0 | 17.9 | 17.3 | -1.8 | 3.5 | +70.3% |
| 2018 | 8.2 | 8.8 | 3.9 | -11.5 | 9.6 | -14.7 | -1.5 | -1.5 | -13.7 | -8.1 | 6.5 | -17.6 | -31.6% |
| 2017 | 10.9 | -0.5 | 4.8 | 13.8 | 4.5 | -17.7 | 24.3 | -1.6 | 14.7 | 15.0 | -13.2 | 0.2 | +59.1% |
| 2016 | 3.2 |