Seasonality
DGX seasonality — Quest Diagnostics
Over the last 11 years, DGX's strongest month on average has been April (+6.0%) and its weakest September (-2.1%).
Average return by month
Month-by-month statistics
| Month | Avg | Median | Up % | Best | Worst | Yrs |
|---|---|---|---|---|---|---|
| Jan | +0.64% | +4.27% | 70% | +8.4% | -22.0% | 10 |
| Feb | -0.52% | -2.69% | 30% | +13.3% | -10.5% | 10 |
| Mar | -0.78% | +1.51% | 60% | +11.0% | -24.3% | 10 |
| Apr | +5.96% | +3.28% | 70% | +37.1% | -2.2% | 10 |
| May | +1.64% | +1.55% | 60% | +7.4% | -4.4% | 10 |
| Jun | +1.72% | +2.70% | 70% | +8.8% | -5.7% | 10 |
| Jul | +2.06% | +1.48% | 60% | +11.5% | -6.8% | 10 |
| Aug | +0.87% | +1.19% | 70% | +10.3% | -12.5% | 10 |
| Sep | -2.15% | -1.99% | 30% | +4.9% | -13.6% | 10 |
| Oct | +1.36% | +0.58% | 60% | +17.1% | -12.8% | 10 |
| Nov | +3.43% | +5.06% | 89% | +7.5% | -5.9% | 9 |
| Dec | -0.02% | +0.13% | 60% | +16.4% | -8.3% | 10 |
Monthly returns heat map — DGX
price return, %| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 7.8 | 13.3 | -7.5 | -0.9 | 0.4 | 8.8 | 9.9 | 3.1 | -3.0 | 8.0 | 1.5 | +47.3% | |
| 2025 | 8.1 | 6.0 | -2.1 | 5.3 | -2.7 | 3.6 | -6.8 | 8.5 | 4.9 | -7.7 | 7.5 | -8.3 | +15.0% |
| 2024 | -6.8 | -2.8 | 6.6 | 3.8 | 2.7 | -3.6 | 4.0 | 10.3 | -1.1 | -0.3 | 5.1 | -7.2 | +9.4% |
| 2023 | -5.1 | -6.8 | 2.2 | -1.9 | -4.4 | 6.0 | -3.8 | -2.7 | -7.3 | 6.8 | 5.5 | 0.5 | -11.9% |
| 2022 | -22.0 | -2.8 | 4.3 | -2.2 | 5.4 | -5.7 | 2.7 | -8.2 | -2.1 | 17.1 | 5.7 | 3.0 | -9.6% |
| 2021 | 8.4 | -10.5 | 11.0 | 2.8 | -0.2 | 0.2 | 7.5 | 7.8 | -4.9 | 1.0 | 1.3 | 16.4 | +45.2% |
| 2020 | 3.6 | -4.2 | -24.3 | 37.1 | 7.4 | -3.6 | 11.5 | -12.5 | 2.9 | 6.7 | 1.5 | -3.9 | +11.6% |
| 2019 | 4.9 | -0.9 | 3.9 | 7.2 | -0.5 | 6.2 | 0.3 | 0.3 | 4.5 | -5.4 | 5.2 | 0.2 | +28.2% |
| 2018 | 7.4 | -2.6 | -2.7 | 0.9 | 5.3 | 3.2 | -2.0 | 2.1 | -1.9 | -12.8 | -5.9 | -6.0 | -15.4% |
| 2017 | 0.0 | 6.0 | 0.8 | 7.5 | 3.1 | 2.2 | -2.6 | 0.0 | -13.6 | 0.1 | 5.0 | 0.0 | +7.2% |
| 2016 | 5.1 |