Seasonality
PSX seasonality — Phillips 66
Over the last 11 years, PSX's strongest month on average has been November (+5.1%) and its weakest September (-1.0%).
Average return by month
Month-by-month statistics
| Month | Avg | Median | Up % | Best | Worst | Yrs |
|---|---|---|---|---|---|---|
| Jan | +2.18% | +2.35% | 60% | +17.0% | -18.0% | 10 |
| Feb | +0.74% | +0.17% | 50% | +22.5% | -18.1% | 10 |
| Mar | +0.53% | +0.08% | 50% | +18.1% | -28.3% | 10 |
| Apr | +1.95% | -0.86% | 40% | +36.4% | -15.7% | 10 |
| May | +1.23% | +1.66% | 50% | +16.2% | -14.3% | 10 |
| Jun | +0.06% | +0.62% | 50% | +15.8% | -18.7% | 10 |
| Jul | +4.99% | +6.07% | 80% | +25.2% | -14.4% | 10 |
| Aug | +0.73% | -1.56% | 50% | +16.5% | -5.7% | 10 |
| Sep | -1.01% | +0.17% | 50% | +9.3% | -11.3% | 10 |
| Oct | +2.92% | -0.25% | 50% | +29.2% | -10.0% | 10 |
| Nov | +5.13% | +3.98% | 67% | +29.8% | -9.0% | 9 |
| Dec | -0.43% | +0.21% | 50% | +15.4% | -15.0% | 10 |
Monthly returns heat map — PSX
price return, %| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 11.2 | 7.5 | 18.1 | -1.7 | -1.8 | -3.9 | 25.2 | 16.5 | 3.5 | 10.8 | -13.1 | +90.4% | |
| 2025 | 3.5 | 10.0 | -4.8 | -15.7 | 9.1 | 5.1 | 3.6 | 8.1 | 1.8 | 0.1 | 0.6 | -5.8 | +13.3% |
| 2024 | 8.4 | -1.2 | 14.6 | -12.3 | -0.8 | -0.7 | 3.0 | -3.5 | -6.3 | -7.3 | 10.0 | -15.0 | -14.4% |
| 2023 | -3.7 | 2.3 | -1.1 | -2.4 | -7.5 | 4.1 | 16.9 | 2.3 | 5.2 | -5.1 | 13.0 | 3.3 | +27.9% |
| 2022 | 17.0 | -0.7 | 2.5 | 0.4 | 16.2 | -18.7 | 8.6 | 0.5 | -9.8 | 29.2 | 4.0 | -4.0 | +43.6% |
| 2021 | -3.1 | 22.5 | -1.8 | -0.8 | 4.1 | 1.9 | -14.4 | -3.2 | -1.5 | 6.8 | -7.5 | 4.8 | +3.6% |
| 2020 | -18.0 | -18.1 | -28.3 | 36.4 | 7.0 | -8.1 | -13.7 | -5.7 | -11.3 | -10.0 | 29.8 | 15.4 | -37.2% |
| 2019 | 10.8 | 1.0 | -1.2 | -0.9 | -14.3 | 15.8 | 9.6 | -3.8 | 3.8 | 14.1 | -1.8 | -2.9 | +29.3% |
| 2018 | 1.2 | -11.8 | 6.1 | 16.0 | 4.7 | -3.6 | 9.8 | -3.9 | -4.9 | -8.8 | -9.0 | -7.9 | -14.8% |
| 2017 | -5.5 | -4.2 | 1.3 | 0.4 | -4.3 | 8.7 | 1.3 | 0.1 | 9.3 | -0.6 | 7.1 | 3.7 | +17.1% |
| 2016 | 4.0 |