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CSGP
CoStar Group Inc.Stock · FinancialsNasdaq-100 0.1% · S&P 500 0.0%
$27.66+$0.52 (+1.90%)as of market close, Jul 24, 2026
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CSGP drawdown: 72.3% below the all-time high

CoStar Group Inc. (CSGP) is 72.3% below its all-time high, set Oct 26, 2021 (as of market close, Jul 24, 2026). The chart shows every day as a percentage of the highest level reached up to that point: 100% means a fresh record, everything below is a drawdown. "All-time" means since our price data begins (1998).

Below all-time high
−72.3%
27.7% of ATH
All-time high
$99.74
Oct 26, 2021
Time below the high
4.7 yrs
since Oct 26, 2021
Worst-ever drawdown
−72.8%
Jul 23, 2026
Longest underwater
6.0 yrs
between all-time highs
Today's level first reached
Jul 19, 2017
9.0 yrs ago
Last time this deep
never before
no prior −72.3% episode

% of all-time high since 1998#

The classic underwater chart (drawdown curve), drawn as % of the all-time high — 100% is a fresh record, everything below it is time spent underwater.

Basis
Range
All-time high = 100%40%60%80%
CSGP close · log scale1.005.0020.00
200020052010201520202025

% of all-time high on the price basis — the all-time high considers the full history of CSGP, including years before the visible window. Dividends are excluded on this basis (the convention headlines use).

The deepest drawdowns on record#

Every decline of 15% or more from an all-time high (price basis), deepest first.

PeakTroughDepthPeak → troughRecovered byUnderwater
Oct 26, 2021Jul 23, 202672.8%4.7 yrsnot yet4.7 yrs+
Mar 13, 2000Mar 21, 200171.1%12 moMar 29, 20066.0 yrs
Jul 12, 1999Oct 13, 199966.7%3 moMar 10, 20008 mo
Oct 18, 2007Mar 9, 200960.7%17 moMar 29, 20113.4 yrs
Jul 30, 1998Sep 11, 199849.4%43 daysDec 17, 19985 mo
Jun 6, 2006Aug 24, 200637.1%3 moOct 9, 200716 mo
May 12, 2011Aug 22, 201135.9%3 moApr 27, 201212 mo
Mar 4, 2014Oct 13, 201435.7%7 moMay 19, 201514 mo

Price basis (no dividends) — the convention crash histories use. With dividends reinvested, recoveries arrive years earlier; switch the basis on the chart above to see it.

Drawdown vs what came next#

One dot per month since 1998: how far CSGP stood below its all-time high, and the total return over the following 1, 5 and 10 years.

1950–19992000–today
-20.0%+0.0%+20.0%+40.0%100%80%60%40%20%% of all-time high at the start month (ATH on the left)today (−72.3%)

Read this with survivorship bias in mind: CSGP is on this chart precisely because it survived — the many stocks that fell this far and never recovered (or were delisted) aren't on anyone's chart, so past recoveries here say little about the odds ahead. Monthly windows also overlap heavily (they are not independent samples). Not investment advice.

FAQ

How far is CSGP from its all-time high?
CSGP is currently 72.3% below its all-time high, set Oct 26, 2021 (as of market close, Jul 24, 2026). Prices only, the convention headlines use; with dividends reinvested the gap is usually smaller.
What was the biggest CSGP drawdown ever?
The deepest decline on record in our data (since 1998) took the stock 72.8% below its prior high, bottoming Jul 23, 2026. The table on this page lists every major episode with its peak, trough and recovery date.

Methodology & related#

Daily closing prices since 1998 (split-adjusted). "All-time" means since our price data begins — CSGP may have traded earlier. For a 150-year index drawdown record see the S&P 500 drawdown page. The price basis excludes dividends; the total-return basis reinvests them; the real basis additionally deflates by CPI. See also returns by year, 150 years of returns and the rolling-returns explorer. Past performance does not predict future returns; not investment advice.