Seasonality
NI seasonality — NiSource
Over the last 11 years, NI's strongest month on average has been November (+3.5%) and its weakest September (-3.4%).
Average return by month
Month-by-month statistics
| Month | Avg | Median | Up % | Best | Worst | Yrs |
|---|---|---|---|---|---|---|
| Jan | +1.89% | +1.34% | 70% | +7.6% | -3.9% | 10 |
| Feb | +0.38% | -0.98% | 40% | +9.4% | -7.8% | 10 |
| Mar | +2.80% | +2.65% | 60% | +11.6% | -7.6% | 10 |
| Apr | +0.45% | +1.26% | 70% | +7.9% | -8.4% | 10 |
| May | +0.80% | +0.68% | 60% | +8.0% | -5.5% | 10 |
| Jun | -0.44% | +0.43% | 50% | +3.9% | -6.2% | 10 |
| Jul | +2.61% | +2.92% | 80% | +8.5% | -6.6% | 10 |
| Aug | -1.32% | -0.48% | 30% | +5.8% | -9.4% | 10 |
| Sep | -3.37% | -3.20% | 30% | +4.8% | -14.6% | 10 |
| Oct | +2.17% | +1.88% | 80% | +14.3% | -6.3% | 10 |
| Nov | +3.49% | +4.40% | 78% | +8.8% | -5.7% | 9 |
| Dec | -0.44% | -2.68% | 40% | +12.7% | -6.8% | 10 |
Monthly returns heat map — NI
price return, %| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 6.1 | 6.8 | -1.4 | 3.5 | -4.3 | 2.9 | -6.6 | -7.9 | -4.7 | 14.3 | -0.9 | +5.7% | |
| 2025 | 1.5 | 9.4 | -1.8 | -2.4 | 1.1 | 2.0 | 5.2 | -0.4 | 2.4 | -2.8 | 4.8 | -5.4 | +13.6% |
| 2024 | -2.2 | 0.3 | 6.1 | 0.7 | 4.3 | -0.9 | 8.5 | 5.8 | 4.8 | 1.5 | 8.3 | -3.5 | +38.5% |
| 2023 | 1.2 | -1.1 | 1.9 | 1.8 | -5.5 | 1.7 | 1.8 | -3.9 | -7.8 | 1.9 | 1.9 | 3.5 | -3.2% |
| 2022 | 5.7 | -0.9 | 9.9 | -8.4 | 8.0 | -6.2 | 3.1 | -2.9 | -14.6 | 2.0 | 8.8 | -1.9 | -0.7% |
| 2021 | -3.4 | -2.5 | 11.6 | 7.9 | -2.0 | -3.9 | 1.1 | -0.5 | -1.7 | 1.8 | -0.7 | 12.7 | +20.4% |
| 2020 | 5.3 | -7.8 | -7.6 | 0.6 | -5.1 | -4.6 | 7.5 | -9.4 | -0.7 | 4.4 | 5.3 | -5.2 | -17.6% |
| 2019 | 7.6 | -1.1 | 6.2 | -3.1 | 0.2 | 3.4 | 3.1 | -0.5 | 1.2 | -6.3 | -5.7 | 5.3 | +9.8% |
| 2018 | -3.9 | -6.3 | 3.4 | 2.0 | 3.7 | 3.9 | -0.4 | 3.4 | -7.9 | 1.8 | 4.2 | -4.0 | -1.2% |
| 2017 | 1.0 | 6.9 | -0.5 | 1.9 | 7.5 | -2.7 | 2.8 | 3.1 | -4.8 | 3.0 | 4.4 | -6.8 | +15.9% |
| 2016 | 0.9 |