CoStar Group (CSGP)
S&P 500 · Real Estate · data since 1998-07-01 · last close 2026-07-24
1d
+1.92%
7d
-7.12%
30d
-7.21%
YTD
-58.86%
1y
-70.25%
CoStar Group (CSGP) monthly returns (%)
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | -8.5 | -27.4 | -9.6 | -14.2 | -7.0 | -12.1 | -2.3 | · | · | · | · | · |
| 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 |
| 2024 | -4.5 | 4.3 | 11.0 | -5.3 | -14.6 | -5.2 | 5.2 | -0.9 | -2.4 | -3.5 | 11.8 | -12.0 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 2017 | 7.2 | 0.5 | 2.0 | 16.3 | 8.6 | 0.8 | 4.5 | 4.0 | -6.4 | 10.3 | 3.1 | -2.6 |
| 2016 | -15.2 | 1.0 | 6.3 | 4.9 | 4.7 | 5.8 | -4.9 | -0.3 | 4.5 | -13.6 | 2.1 | -1.4 |
| 2015 | 0.5 | 7.9 | -0.7 | 3.3 | 2.2 | -3.7 | 0.0 | -12.1 | -2.3 | 17.3 | 3.0 | -1.2 |
| 2014 | -6.8 | 16.9 | -7.1 | -13.8 | -1.4 | -0.2 | -9.1 | 0.7 | 7.5 | 3.6 | 5.7 | 7.8 |
| 2013 | 4.9 | 7.4 | 8.7 | -1.0 | 3.1 | 15.4 | 21.3 | -5.1 | 13.1 | 5.4 | 5.2 | -0.9 |
| 2012 | -15.1 | 5.8 | 15.1 | 5.6 | 1.4 | 9.9 | 1.6 | -1.6 | 0.4 | 1.7 | 4.8 | 2.9 |
| 2011 | -2.2 | 0.7 | 10.6 | 8.5 | -7.2 | -6.0 | -0.9 | -12.9 | 1.5 | 18.4 | 8.1 | 0.3 |
| 2010 | -3.3 | -2.5 | 5.5 | 5.8 | -7.2 | -4.8 | 13.0 | -5.8 | 18.0 | 1.9 | 6.2 | 9.1 |
| 2009 | -10.1 | -13.9 | 18.6 | 22.5 | -3.8 | 11.8 | -7.9 | 3.3 | 8.7 | -5.8 | 2.3 | 5.1 |
| 2008 | -10.4 | -1.9 | 3.6 | 11.5 | -2.2 | -5.2 | 12.2 | 5.8 | -14.1 | -20.6 | -9.4 | 1.0 |
| 2007 | -11.4 | -1.3 | -4.7 | 9.2 | 11.2 | -2.5 | -3.6 | 7.9 | -2.9 | 7.6 | -16.2 | -1.9 |
| 2006 | 15.8 | 3.2 | 0.5 | 8.8 | -5.5 | 12.2 | -27.5 | -7.1 | 2.6 | 14.6 | 4.1 | 8.6 |
| 2005 | -7.0 | -14.3 | 0.1 | 7.3 | 1.6 | 8.5 | 8.9 | -1.6 | -0.1 | 2.6 | -2.1 | -8.0 |
| 2004 | -1.0 | -5.5 | -5.5 | 6.8 | 5.1 | 11.0 | -7.6 | -0.4 | 16.3 | -17.9 | 8.5 | 5.4 |
| 2003 | 9.2 | 2.2 | 7.0 | 0.9 | 26.5 | 5.4 | 2.2 | -1.9 | -12.1 | 43.9 | 11.6 | -0.7 |
| 2002 | -3.2 | -22.4 | 26.2 | 4.6 | -10.8 | -3.3 | 2.3 | 14.7 | -25.3 | -9.2 | 10.0 | 2.6 |
| 2001 | 19.8 | -36.9 | 7.0 | 21.6 | 8.0 | 4.8 | 3.1 | -7.8 | -28.1 | 3.2 | 4.5 | 23.9 |
| 2000 | -10.1 | 12.8 | 1.4 | -35.0 | -12.7 | 19.7 | 46.4 | -24.7 | 33.9 | -15.5 | -28.6 | 5.9 |
| 1999 | 86.1 | -15.7 | 47.6 | 34.0 | -7.5 | 20.0 | -12.1 | -25.0 | -16.8 | 3.1 | -6.6 | 56.0 |
| 1998 | · | · | · | · | · | · | 17.0 | -38.4 | 17.0 | 8.1 | 7.5 | 40.3 |
| Avg | 2.5 | -3.3 | 5.4 | 4.5 | -0.1 | 4.5 | 4.6 | -4.3 | -0.2 | 1.0 | 2.2 | 4.7 |
Values in %. Current and first-listed months are partial (greyed).
returnsview.com
Seasonality — average by calendar month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg | +2.5% | -3.3% | +5.3% | +4.5% | -0.1% | +4.5% | +4.8% | -4.3% | -0.2% | +1.0% | +2.2% | +4.7% |
| Win rate | 43%/28 | 46%/28 | 71%/28 | 75%/28 | 50%/28 | 61%/28 | 68%/28 | 25%/28 | 46%/28 | 54%/28 | 71%/28 | 57%/28 |
Win rate = share of positive months / sample size.
Risk & extremes
Max drawdown
-72.8%
Worst peak-to-trough fall on record
Monthly volatility
±12.9%
Std. dev. of monthly returns
Positive months
56%
Share of completed months in the green
Best month
+86.14%
1999-01
Worst month
-38.37%
1998-08
Longest streaks
9▲ / 11▼
Consecutive up / down months
Drawdown & rolling returns
Percent below the all-time high at each month-end — how far underwater the asset was.
About CoStar Group
CoStar Group collects rent at scale, which remains an excellent business — with price receipts on this site going back to 1998. And the long game: $100 at its first close here (1998) would be about $2,634 today.
Did you know?
- Its best month on record was January 1999 at +86.14%; its worst, August 1998 at -38.37%.
- It has closed April in the green 21 out of 28 times — not a promise, just a suspicious habit.
Trivia for entertainment — the numbers come from our price data; the jokes don't.