Seasonality
ONTO seasonality — Onto Innovation
Over the last 8 years, ONTO's strongest month on average has been November (+13.6%) and its weakest October (-3.5%).
Average return by month
Month-by-month statistics
| Month | Avg | Median | Up % | Best | Worst | Yrs |
|---|---|---|---|---|---|---|
| Jan | +11.42% | +13.67% | 86% | +28.0% | -9.6% | 7 |
| Feb | -1.83% | +4.86% | 57% | +15.6% | -28.9% | 7 |
| Mar | -1.97% | -1.67% | 43% | +6.6% | -16.7% | 7 |
| Apr | +4.93% | +2.44% | 71% | +43.9% | -18.1% | 7 |
| May | +3.68% | +4.74% | 57% | +32.6% | -24.6% | 7 |
| Jun | +9.17% | +8.50% | 86% | +46.5% | -13.2% | 7 |
| Jul | -2.50% | -4.05% | 43% | +19.4% | -31.7% | 7 |
| Aug | +1.73% | +5.78% | 71% | +11.9% | -17.4% | 7 |
| Sep | +1.32% | -2.65% | 29% | +21.9% | -9.8% | 7 |
| Oct | -3.53% | +4.36% | 57% | +9.6% | -34.5% | 7 |
| Nov | +13.56% | +18.87% | 86% | +37.9% | -17.2% | 7 |
| Dec | +4.19% | +7.55% | 86% | +10.3% | -14.8% | 7 |
Monthly returns heat map — ONTO
price return, %| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 28.0 | 6.8 | -5.0 | 43.9 | -12.5 | 46.5 | -31.7 | 3.3 | 15.2 | -34.5 | -14.0 | +9.8% | |
| 2025 | 22.9 | -28.9 | -16.7 | 0.5 | -24.6 | 9.8 | -6.1 | 11.9 | 21.9 | 4.4 | 6.1 | 10.3 | -5.3% |
| 2024 | 5.6 | 14.0 | -1.7 | 2.4 | 16.8 | 1.3 | -12.9 | 11.5 | -2.6 | -4.5 | -17.2 | 1.5 | +9.0% |
| 2023 | 15.5 | 4.9 | 6.6 | -7.8 | 32.6 | 8.5 | 6.7 | 11.8 | -8.2 | -11.9 | 25.5 | 8.4 | +124.6% |
| 2022 | -9.6 | -5.8 | 0.8 | -18.1 | 13.0 | -13.2 | 19.4 | -14.7 | -9.8 | 4.4 | 19.6 | -14.8 | -32.7% |
| 2021 | 13.7 | 15.6 | 5.2 | 4.3 | 4.7 | 1.8 | -4.0 | 5.8 | -2.5 | 9.6 | 18.9 | 7.5 | +112.9% |
| 2020 | 3.8 | -19.4 | -2.9 | 9.4 | -4.2 | 9.5 | 11.1 | -17.4 | -4.7 | 7.7 | 37.9 | 7.5 | +30.1% |
| 2019 | 4.2 | 8.9 |