CoStar Group (CSGP) — Daily Price Character
Historical session stats from dividend-adjusted prices: win rate, streaks, record days, weekday patterns, and (when available) how often the stock was green on S&P 500 green days.
CSGP
Archetype
Explosive
High daily volatility — frequent large price swings.
Win rate
48.9%
3416 green · 3282 red · 285 flat · 6983 sessions
Current streak
1 red
As of Apr 7, 2026
Max win / lose streak
9 / 12 days
Win streak return: +6.66% · Lose: 31.54%
Median / σ daily
+0.000% · 2.759%
Avg green +1.91% · avg red 1.80%
Extreme days (>3%)
16.5%
595 up · 556 down
History from Jul 2, 1998 through Apr 7, 2026 · 6983 trading days with returns.
Trailing year — daily returns (calendar)
Apr 8, 2025 – Apr 7, 2026 · Mon–Fri sessions only
Monday–Friday — average return
Average dividend-adjusted return on that weekday (green / red by sign). Green/red day rule: ±0.01% vs prior close.
Monday–Friday — win rate
Share of sessions that closed green on that weekday. Bars are green at or above 50%, red below 50%.
Top green days
Largest single-session gains (dividend-adjusted), by historical return.
| Date | Return |
|---|---|
| Jan 7, 1999 | +40.69% |
| Oct 20, 1999 | +28.65% |
| Apr 26, 2001 | +21.67% |
| Dec 28, 2000 | +20.55% |
| Sep 19, 2001 | +19.16% |
| Dec 17, 1998 | +19.05% |
| Dec 31, 1999 | +18.09% |
| Jul 25, 2013 | +17.16% |
| Dec 17, 1999 | +17.08% |
| Apr 14, 1999 | +16.85% |
| Apr 5, 2001 | +16.13% |
| Jul 13, 2000 | +15.94% |
| Dec 16, 1998 | +15.86% |
| Jul 29, 2020 | +15.68% |
| Sep 28, 2000 | +15.61% |
| Jun 14, 2000 | +15.56% |
| Jan 3, 2001 | +15.28% |
| Jul 27, 2022 | +14.79% |
| May 5, 2000 | +14.55% |
| Apr 10, 2001 | +14.04% |
Worst red days
Largest single-session losses; "Days to recovery" counts trading sessions until close recovered the prior peak (dividend-adjusted).
| Date | Return | Days to recovery |
|---|---|---|
| Apr 19, 1999 | 19.59% | 53 |
| Feb 3, 2026 | 15.45% | — |
| Feb 23, 2022 | 15.00% | 17 |
| Feb 15, 2001 | 14.59% | 50 |
| Feb 13, 2002 | 14.53% | 38 |
| Aug 10, 1999 | 13.45% | 16 |
| May 2, 2000 | 12.97% | 3 |
| Oct 8, 1998 | 12.73% | 8 |
| Jan 3, 2000 | 12.53% | 8 |
| Nov 19, 2008 | 12.34% | 3 |
| Jun 30, 2000 | 12.24% | 8 |
| Apr 3, 2001 | 11.89% | 5 |
| Dec 1, 2008 | 11.66% | 14 |
| Apr 25, 2000 | 11.65% | 46 |
| Oct 12, 1999 | 11.58% | 6 |
| Mar 16, 2020 | 11.49% | 45 |
| Jan 20, 2000 | 11.39% | 30 |
| Sep 22, 2008 | 11.33% | 557 |
| Apr 14, 2000 | 11.04% | 61 |
| Oct 20, 2004 | 10.92% | 181 |
Frequently asked questions
What is the daily win rate for CoStar Group (CSGP)?
- Historically, CoStar Group (CSGP) closed green on 48.9% of trading days (3416 green, 3282 red, 285 flat), using dividend-adjusted closes and a ±0.01% threshold for green vs red.
What is the current winning or losing streak for CoStar Group (CSGP)?
- As of 2026-04-07, CoStar Group (CSGP) is on a 1-day losing streak (consecutive green or red days by the same rules, ignoring trailing flat days).
What does Steady, Balanced, or Explosive mean for CoStar Group (CSGP)?
- We label CoStar Group (CSGP) as "explosive" based on the sample standard deviation of daily returns: High daily volatility — frequent large price swings.
What were the best and worst single trading days for CoStar Group (CSGP)?
- Largest single-day gain: +40.69%. Largest single-day loss: 19.59%. Tables on this page list the top record green and red days.
What counts as an "extreme" daily move for CoStar Group (CSGP)?
- We treat a day as extreme if the absolute dividend-adjusted daily return exceeds 3%. About 16.5% of trading days for CoStar Group (CSGP) were extreme (595 up, 556 down).
Data & methodology
How are green, red, and flat days defined?
- We use dividend-adjusted (or close-to-close for non-equity) daily returns. Green: return ≥ +0.01%. Red: return ≤ −0.01%. Flat: between those bounds.
How is the current streak calculated?
- We count consecutive green or consecutive red days using the same thresholds. If the most recent session is flat, we skip trailing flat days and measure from the last non-flat close.
What does “vs S&P 500” mean?
- On sessions where the S&P 500 (^GSPC) was green, we report how often this stock was also green. Shown only for USD equities when benchmark data exists and the symbol is not the index itself.
Where does the archetype come from?
- Sample standard deviation of daily returns: low → Steady, high → Explosive, otherwise Balanced. Labels describe typical daily volatility, not quality of the investment.