Seasonality
IDA seasonality — Idacorp
Over the last 11 years, IDA's strongest month on average has been November (+4.2%) and its weakest September (-1.9%).
Average return by month
Month-by-month statistics
| Month | Avg | Median | Up % | Best | Worst | Yrs |
|---|---|---|---|---|---|---|
| Jan | -0.94% | -1.27% | 40% | +5.0% | -8.1% | 10 |
| Feb | -1.48% | -2.31% | 40% | +8.4% | -13.9% | 10 |
| Mar | +3.59% | +2.96% | 70% | +15.9% | -9.2% | 10 |
| Apr | +1.45% | +2.27% | 80% | +5.4% | -8.8% | 10 |
| May | -0.53% | +0.73% | 60% | +3.6% | -6.3% | 10 |
| Jun | -1.07% | -1.82% | 20% | +7.9% | -6.3% | 10 |
| Jul | +3.35% | +3.55% | 90% | +8.6% | -5.5% | 10 |
| Aug | +0.11% | -0.14% | 40% | +7.6% | -6.8% | 10 |
| Sep | -1.90% | -1.53% | 40% | +5.6% | -11.1% | 10 |
| Oct | +2.10% | +1.02% | 70% | +11.2% | -6.0% | 10 |
| Nov | +4.22% | +3.25% | 89% | +14.5% | -2.4% | 9 |
| Dec | -0.33% | -0.38% | 50% | +8.3% | -7.8% | 10 |
Monthly returns heat map — IDA
price return, %| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 4.9 | 8.4 | -0.7 | 3.3 | -5.1 | 7.9 | -5.5 | -4.7 | -4.0 | 11.2 | 0.8 | +15.8% | |
| 2025 | 0.6 | 7.2 | -1.4 | 1.6 | 0.7 | -2.9 | 8.6 | -0.2 | 5.6 | -2.4 | 2.1 | -4.0 | +15.8% |
| 2024 | -5.8 | -4.8 | 5.4 | 2.0 | 0.7 | -2.4 | 4.9 | 4.3 | 1.2 | 0.4 | 14.5 | -7.8 | +11.2% |
| 2023 | -1.9 | -2.3 | 4.8 | 2.6 | -6.3 | -1.4 | 0.2 | -6.8 | -2.3 | 1.1 | 1.9 | 1.9 | -8.8% |
| 2022 | -2.7 | -5.7 | 11.0 | -8.8 | 3.6 | -2.8 | 5.5 | -2.2 | -9.4 | 5.8 | 5.6 | -2.4 | -4.8% |
| 2021 | -8.1 | -2.3 | 15.9 | 2.5 | -4.4 | -0.5 | 8.2 | -0.1 | -1.9 | 0.9 | 0.3 | 8.3 | +18.0% |
| 2020 | 5.0 | -13.9 | -9.2 | 4.5 | 1.6 | -6.3 | 6.7 | -3.6 | -11.1 | 9.8 | 3.2 | 6.0 | -10.1% |
| 2019 | 4.8 | 0.9 | 1.1 | -0.5 | 1.3 | 0.2 | 1.6 | 7.6 | 2.6 | -4.5 | -2.4 | 1.7 | +14.8% |
| 2018 | -5.6 | -6.1 | 8.9 | 5.4 | -0.7 | -0.1 | 2.2 | 3.8 | 1.4 | -6.0 | 5.3 | -5.3 | +1.9% |
| 2017 | -0.7 | 3.6 | 0.0 | 1.9 | 3.3 | -2.2 | 1.2 | 3.0 | -1.2 | 4.7 | 7.4 | -7.5 | +13.4% |
| 2016 | 5.8 |