Seasonality
CSGP seasonality — CoStar Group
Over the last 11 years, CSGP's strongest month on average has been July (+8.3%) and its weakest September (-4.2%).
Average return by month
Month-by-month statistics
| Month | Avg | Median | Up % | Best | Worst | Yrs |
|---|---|---|---|---|---|---|
| Jan | +2.97% | +3.90% | 60% | +16.6% | -11.2% | 10 |
| Feb | -3.57% | -0.80% | 40% | +17.1% | -27.4% | 10 |
| Mar | +0.96% | +1.97% | 60% | +11.0% | -12.0% | 10 |
| Apr | +1.95% | +2.53% | 60% | +16.2% | -14.2% | 10 |
| May | -0.69% | +0.63% | 50% | +8.6% | -14.6% | 10 |
| Jun | +2.62% | +4.49% | 60% | +12.1% | -12.1% | 10 |
| Jul | +8.29% | +6.26% | 90% | +20.2% | -5.7% | 10 |
| Aug | +0.37% | -0.53% | 30% | +11.5% | -6.0% | 10 |
| Sep | -4.21% | -4.17% | 20% | +1.6% | -14.6% | 10 |
| Oct | -1.18% | -3.22% | 30% | +18.8% | -18.4% | 10 |
| Nov | +4.51% | +3.12% | 67% | +13.1% | -9.6% | 9 |
| Dec | -2.56% | -2.32% | 30% | +5.2% | -12.0% | 10 |
Monthly returns heat map — CSGP
price return, %| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | -8.5 | -27.4 | -9.6 | -14.2 | -7.0 | -12.1 | 1.6 | 11.5 | -14.6 | 10.1 | 1.3 | -54.6% | |
| 2025 | 7.0 | -0.5 | 3.9 | -6.4 | -0.8 | 9.3 | 18.4 | -6.0 | -5.7 | -18.4 | -0.0 | -2.3 | -6.1% |
| 2024 | -4.5 | 4.2 | 11.0 | -5.2 | -14.6 | -5.2 | 5.2 | -0.9 | -2.4 | -3.5 | 11.8 | -12.0 | -18.1% |
| 2023 | 0.8 | -9.3 | -2.6 | 11.8 | 3.2 | 12.1 | -5.7 | -2.4 | -6.2 | -4.5 | 13.1 | 5.2 | +13.1% |
| 2022 | -11.2 | -13.0 | 9.2 | -4.5 | -4.2 | -0.9 | 20.2 | -4.1 | 0.0 | 18.8 | -2.0 | -4.6 | -2.2% |
| 2021 | -2.7 | -8.4 | -0.2 | 4.0 | -0.1 | -3.0 | 7.3 | -4.6 | 1.6 | -0.0 | -9.6 | 1.6 | -14.5% |
| 2020 | 9.1 | 2.2 | -12.0 | 10.4 | 1.3 | 8.2 | 19.6 | -0.1 | -0.0 | -2.9 | 10.6 | 1.5 | +54.5% |
| 2019 | 15.8 | 17.1 | 1.9 | 6.4 | 2.7 | 8.7 | 11.1 | -0.1 | -3.5 | -7.4 | 11.5 | -2.4 | +77.4% |
| 2018 | 16.6 | -1.1 | 6.0 | 1.1 | 4.0 | 8.2 | 0.8 | 6.3 | -4.8 | -14.1 | 2.2 | -8.7 | +13.6% |
| 2017 | 7.2 | 0.5 | 2.0 | 16.2 | 8.6 | 0.8 | 4.5 | 4.0 | -6.4 | 10.2 | 3.1 | -2.6 | +57.5% |
| 2016 | -1.4 |