CoStar Group (CSGP) Seasonality
Recurring seasonal patterns for CSGP — the calendar windows where CoStar Group has historically tended to rise or fall, with the win rate (how often it repeated) and average return for each, based on the last 10 years of price history.
CSGP seasonality at a glance
Over the last 10 years, CSGP's strongest seasonal window has been Jun 15 – Jul 15: it ended higher in 10 of 10 years (100% win rate) with an average return of +4.52% across a 30-day hold. On the weak side, CSGP has historically declined between Sep 7 – Oct 7, falling in 9 of 10 years (average -3.63%).
In total, our analysis finds 730 recurring seasonal windows for CoStar Group — 516 bullish and 214 bearish. The next high-win-rate window, Sep 17 – Sep 27, opens in 6 days. These figures describe historical behaviour only — not a forecast.
CSGP's upcoming & recent seasonal patterns
Holding period:10-day20-day30-dayOrdered by season — windows opening soon first, plus a couple of recently completed high-performers. Holding-period colors help you compare durations at a glance.
| Status | Seasonal window | Hold | Avg return | Win rate | This year |
|---|---|---|---|---|---|
| Completedended 5d ago | Aug 7 – Sep 6 | 30d | +1.77% | 80% | +2.22% |
| Completedended 10d ago | Aug 12 – Sep 1 | 20d | +1.76% | 80% | +4.85% |
| Upcomingin 6d | Sep 17 – Sep 27 | 10d | -1.47% | 80% | — |
| Upcomingin 11d | Sep 22 – Oct 2 | 10d | -1.66% | 90% | — |
| Upcomingin 19d | Sep 30 – Oct 30 | 30d | -3.87% | 80% | — |
| Upcomingin 20d | Oct 1 – Oct 31 | 30d | -3.67% | 80% | — |
| Upcomingin 21d | Oct 2 – Nov 1 | 30d | -3.75% | 80% | — |
Win rate = how often the pattern repeated in the same direction. Average return = the mean move across all analysed years. Past performance does not guarantee future results.
Explore CSGP seasonality in full
See the seasonal curve chart, filter by win rate and return, and track upcoming windows — free during beta.
CSGP seasonality FAQ
What has historically been the best month to buy CSGP stock?
Based on the last 10 years of price data, CSGP's strongest seasonal window starts in June: Jun 15 to Jul 15, which ended higher in 10 of 10 years (100% win rate) with an average return of +4.52%. Past seasonal patterns do not guarantee future performance.
What is CSGP's strongest seasonal pattern?
CSGP's highest-win-rate pattern in our data is the Jun 15 – Jul 15 window (30-day hold): up in 10 of the last 10 years with an average move of +4.52%.
When has CSGP historically performed worst?
CSGP's weakest recurring window has been Sep 7 to Oct 7, declining in 9 of 10 years with an average return of -3.63%.
How reliable are CSGP's seasonal patterns?
Each CSGP pattern is scored by its historical win rate — the share of the last 10 years it repeated in the same direction. CSGP currently shows 730 recurring windows (516 bullish, 214 bearish). Seasonality describes historical tendencies only; it is not a prediction, and past performance does not guarantee future results.
What is CSGP stock seasonality?
Seasonality is the tendency of a stock to perform in a similar way during the same period each year. By analysing CoStar Group's price history across many years, SeasonalityX identifies recurring calendar windows — exact start and end dates — where CSGP has repeatedly risen (bullish) or fallen (bearish). Each pattern is scored by its win rate and average return so you can judge how reliable and how strong it has been.
Seasonality is one input among many — it works best alongside your own research and risk management. Learn more in our guide to seasonal analysis and the tutorials.