Seasonality
OII seasonality — Oceaneering International, Inc.
Over the last 11 years, OII's strongest month on average has been January (+7.1%) and its weakest March (-7.2%).
Average return by month
Month-by-month statistics
| Month | Avg | Median | Up % | Best | Worst | Yrs |
|---|---|---|---|---|---|---|
| Jan | +7.12% | +2.51% | 50% | +29.7% | -16.8% | 10 |
| Feb | +2.57% | -1.84% | 40% | +39.6% | -15.1% | 10 |
| Mar | -7.17% | -0.68% | 40% | +18.4% | -72.1% | 10 |
| Apr | +6.32% | -0.76% | 50% | +74.8% | -25.3% | 10 |
| May | +5.89% | +5.40% | 70% | +32.7% | -14.6% | 10 |
| Jun | +5.42% | +6.42% | 60% | +24.3% | -16.0% | 10 |
| Jul | +4.01% | +6.10% | 60% | +26.9% | -24.2% | 10 |
| Aug | -4.29% | -5.67% | 40% | +12.4% | -16.7% | 10 |
| Sep | -2.69% | -0.41% | 50% | +16.5% | -34.7% | 10 |
| Oct | +1.51% | -3.95% | 40% | +75.8% | -31.4% | 10 |
| Nov | +4.17% | -3.36% | 44% | +48.8% | -21.4% | 9 |
| Dec | +3.77% | +5.83% | 70% | +31.0% | -27.9% | 10 |
Monthly returns heat map — OII
price return, %| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 25.3 | 17.9 | -0.1 | 5.8 | 1.8 | 6.0 | 20.4 | 6.1 | -15.7 | -6.3 | -16.2 | +42.5% | |
| 2025 | -4.7 | -11.1 | -1.3 | -18.6 | 7.4 | 8.7 | 4.7 | 12.4 | 1.6 | -6.0 | 4.8 | -1.5 | -7.9% |
| 2024 | -2.4 | -4.9 | 18.4 | -2.1 | 3.4 | -0.1 | 26.9 | -10.1 | -7.8 | -1.9 | 22.9 | -13.0 | +22.6% |
| 2023 | 22.1 | -2.1 | -15.6 | 0.6 | -13.7 | 22.1 | 20.1 | 1.5 | 12.9 | -14.5 | -6.0 | 3.0 | +21.7% |
| 2022 | 15.2 | 12.4 | 3.5 | -25.3 | 12.3 | -16.0 | -0.6 | -16.7 | -10.1 | 75.8 | 8.6 | 15.1 | +54.6% |
| 2021 | 6.3 | 39.6 | -3.2 | -5.9 | 32.7 | 9.1 | -14.8 | -7.2 | 8.3 | 2.1 | -21.4 | 5.8 | +42.3% |
| 2020 | -16.8 | -15.1 | -72.1 | 74.8 | 24.9 | -0.5 | -12.1 | -4.1 | -34.7 | 15.9 | 48.8 | 31.0 | -46.7% |
| 2019 | 29.7 | -1.5 | 2.1 | 21.8 | -14.6 | 24.3 | -24.2 | -16.1 | 4.5 | 4.5 | -5.3 | 11.2 | +23.2% |
| 2018 | -2.2 | -11.1 | 0.9 | 14.6 | 12.2 | 6.8 | 7.5 | 3.3 | -2.4 | -31.4 | -11.3 | -27.9 | -42.8% |
| 2017 | -1.3 | 1.7 | -4.4 | -2.5 | -7.6 | -6.3 | 12.3 | -12.1 | 16.5 | -23.0 | -3.4 | 8.2 | -25.1% |
| 2016 | 5.8 |