Seasonality
ADP seasonality — Automatic Data Processing
Over the last 11 years, ADP's strongest month on average has been July (+6.9%) and its weakest September (-3.0%).
Average return by month
Month-by-month statistics
| Month | Avg | Median | Up % | Best | Worst | Yrs |
|---|---|---|---|---|---|---|
| Jan | -1.23% | -0.61% | 50% | +6.7% | -16.4% | 10 |
| Feb | -1.05% | +0.39% | 50% | +9.4% | -13.2% | 10 |
| Mar | +0.29% | -0.39% | 40% | +11.3% | -11.7% | 10 |
| Apr | +0.98% | +0.63% | 50% | +7.3% | -4.1% | 10 |
| May | +2.16% | +1.72% | 60% | +10.1% | -5.0% | 10 |
| Jun | +0.20% | +1.14% | 70% | +5.2% | -5.8% | 10 |
| Jul | +6.89% | +7.78% | 90% | +19.0% | -10.7% | 10 |
| Aug | +1.96% | +2.48% | 70% | +8.7% | -10.5% | 10 |
| Sep | -2.96% | -3.92% | 40% | +2.7% | -9.8% | 10 |
| Oct | +3.27% | +5.43% | 70% | +13.9% | -11.3% | 10 |
| Nov | +4.20% | +5.27% | 78% | +10.1% | -1.9% | 9 |
| Dec | -0.58% | +1.04% | 60% | +7.0% | -11.1% | 10 |
Monthly returns heat map — ADP
price return, %| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | -4.0 | -13.2 | -5.2 | 4.3 | 4.7 | 0.9 | 19.0 | 7.4 | -9.8 | 13.9 | 3.2 | +17.9% | |
| 2025 | 3.5 | 4.0 | -3.1 | -1.6 | 8.3 | -5.3 | 0.4 | -1.8 | -3.5 | -11.3 | -1.9 | 0.8 | -12.1% |
| 2024 | 5.5 | 2.2 | -0.6 | -3.1 | 1.2 | -2.5 | 10.0 | 5.1 | 0.3 | 4.5 | 6.1 | -4.6 | +25.6% |
| 2023 | -5.5 | -2.6 | 1.3 | -1.2 | -5.0 | 5.2 | 12.5 | 3.0 | -5.5 | -9.3 | 5.4 | 1.3 | -2.5% |
| 2022 | -16.4 | -0.8 | 11.3 | -4.1 | 2.2 | -5.8 | 14.8 | 1.4 | -7.5 | 6.9 | 9.3 | -9.6 | -3.1% |
| 2021 | -6.3 | 5.4 | 8.3 | -0.8 | 4.8 | 1.3 | 5.5 | -0.3 | -4.4 | 12.3 | 2.9 | 6.8 | +39.9% |
| 2020 | 0.5 | -9.7 | -11.7 | 7.3 | -0.1 | 1.6 | -10.7 | 4.7 | 0.3 | 13.2 | 10.1 | 1.3 | +3.3% |
| 2019 | 6.7 | 9.4 | 4.4 | 2.9 | -2.6 | 3.2 | 0.7 | 2.0 | -5.0 | 0.5 | 5.3 | -0.2 | +30.0% |
| 2018 | 5.5 | -6.7 | -1.6 | 4.0 | 10.1 | 3.2 | 0.6 | 8.7 | 2.7 | -4.4 | 2.3 | -11.1 | +11.9% |
| 2017 | -1.7 | 1.6 | -0.2 | 2.0 | -2.0 | 0.1 | 16.1 | -10.5 | 2.7 | 6.3 | -1.6 | 2.4 | +14.0% |
| 2016 | 7.0 |