CSGP
StockCoStar Group, Inc.
One email when a drop — in price or in valuation — is historically rare for CSGP. Otherwise we stay quiet.
This is the kind of decline worth waking up for.
CoStar Group, Inc. is 67.7% off its high — among the deepest declines in its recorded history.
And it's not just the price: CoStar Group, Inc.'s P/S Severity Score is 7.8 — historically low valuation vs its own history.
Historic
Current Drawdown
-67.7%
Days in Drawdown
1748
Avg Max Drawdown
6.3%
Avg Length
57
Drawdown Severity Score™
12.4
CSGP - Price & High Water Mark
CSGP - Drawdown Timeline
How to read this chart: Negative values indicate drawdowns from all-time highs. Values closer to 0% mean the stock is near its high water mark.
Valuation vs Its Own History
Data as of August 22, 2026 · updated daily
Where today's valuation sits within CSGP's own multi-year range, scored with the same Drawdown Severity Score language as price, measured from its typical level rather than its record high — a higher score means it has rarely been cheaper. This is context, not a recommendation.
Price to Sales
CoStar Group, Inc. has been cheaper on this measure only about 5% of the time in 20 years of daily history.
Price to Sales history
EV to EBITDA
CoStar Group, Inc. has been cheaper on this measure only about 24% of the time in 20 years of daily history.
EV to EBITDA history · log scale
CoStar Group, Inc. (CSGP) Analysis: Current Drawdown Insights
CoStar Group, Inc. is currently in a drawdown that is unusual by its own historical standards. As of 2026-08-21, the stock is trading at $32.26, which represents a 67.7% decline from its all-time high of $99.74. This drawdown has persisted for 1748 days.
Based on its full tracked price history, CoStar Group, Inc. typically experiences drawdowns averaging 6.3% in depth, with an average duration of 57 days. CoStar Group, Inc. has gone through 145 total drawdown events in its tracked history. The largest drawdown on record for CoStar Group, Inc. was 71.1%, beginning in 2000. The longest drawdown duration on record was 2207 days.
The Drawdown Severity Score™ for CoStar Group, Inc. currently stands at 12.39. This is our proprietary indicator that shows the relative severity of the current drawdown based on the asset's unique historical patterns. A score above 12.0 indicates a historic, once-in-a-decade event: declines of this magnitude are extraordinarily rare in this asset's tracked history and can also signal fundamental changes worth investigating.
Understanding Drawdowns: A drawdown measures how far a stock has fallen from its peak price. Every stock experiences drawdowns: periods when the price declines from all-time highs before recovering. By analyzing CoStar Group, Inc.'s historical drawdown patterns, investors can identify when the stock is experiencing a typical market fluctuation versus an unusual decline that is rare by that stock's own historical standards.
📜 Historical Drawdown Events
Current drawdown shown in blue. Showing the most recent and the deepest of 145 tracked pullbacks (65 listed).
| Start Date | End Date | Duration | Max Depth | Start Price | Lowest Price | Recovery Price |
|---|---|---|---|---|---|---|
| 2021-11-07 | Ongoing | 1748 days | -67.7% | $99.74 | $32.26 | n/a |
| 2021-10-25 | 2021-10-26 | 2 days | -0.1% | $99.29 | $99.19 | $99.74 |
| 2021-02-16 | 2021-10-18 | 244 days | -19.3% | $93.98 | $75.85 | $94.94 |
| 2020-12-29 | 2021-02-12 | 46 days | -9.1% | $93.95 | $85.37 | $93.98 |
| 2020-11-16 | 2020-12-28 | 43 days | -7.5% | $91.71 | $84.84 | $93.95 |
| 2020-11-10 | 2020-11-13 | 4 days | -2.8% | $91.19 | $88.61 | $91.71 |
| 2020-11-06 | 2020-11-09 | 4 days | -0.1% | $90.36 | $90.26 | $91.19 |
| 2020-10-14 | 2020-11-04 | 22 days | -10.2% | $88.32 | $79.33 | $90.25 |
| 2020-09-03 | 2020-10-12 | 40 days | -10.5% | $87.78 | $78.57 | $88.23 |
| 2020-08-26 | 2020-09-01 | 7 days | -1.5% | $85.42 | $84.17 | $87.34 |
| 2020-08-03 | 2020-08-24 | 22 days | -4.7% | $84.98 | $81.02 | $85.30 |
| 2020-02-13 | 2020-07-29 | 167 days | -29.3% | $74.01 | $52.34 | $82.91 |
| 2020-02-05 | 2020-02-12 | 8 days | -2.9% | $68.57 | $66.55 | $74.01 |
| 2020-01-23 | 2020-02-04 | 13 days | -3.5% | $66.96 | $64.64 | $68.57 |
| 2020-01-17 | 2020-01-21 | 5 days | -0.4% | $65.20 | $64.96 | $66.04 |
| 2020-01-13 | 2020-01-15 | 3 days | -0.8% | $64.51 | $63.99 | $64.90 |
| 2019-07-29 | 2020-01-10 | 166 days | -14.3% | $63.43 | $54.36 | $64.51 |
| 2019-07-12 | 2019-07-24 | 13 days | -1.3% | $58.80 | $58.06 | $62.79 |
| 2019-07-05 | 2019-07-09 | 5 days | -0.5% | $56.55 | $56.25 | $56.70 |
| 2019-06-24 | 2019-07-03 | 10 days | -4.6% | $56.05 | $53.47 | $56.55 |
| 2019-06-20 | 2019-06-21 | 2 days | -0.2% | $55.67 | $55.55 | $56.05 |
| 2019-06-11 | 2019-06-17 | 7 days | -1.0% | $55.05 | $54.48 | $55.46 |
| 2019-06-07 | 2019-06-10 | 4 days | -0.0% | $54.00 | $53.99 | $55.05 |
| 2019-05-23 | 2019-06-05 | 14 days | -5.4% | $52.79 | $49.96 | $53.01 |
| 2019-05-17 | 2019-05-21 | 5 days | -0.3% | $51.90 | $51.72 | $52.49 |
| 2019-05-07 | 2019-05-15 | 9 days | -3.5% | $50.62 | $48.85 | $51.11 |
| 2019-05-03 | 2019-05-06 | 4 days | -0.5% | $50.15 | $49.89 | $50.62 |
| 2019-05-01 | 2019-05-02 | 2 days | -0.1% | $49.63 | $49.60 | $50.15 |
| 2019-04-24 | 2019-04-30 | 7 days | -4.2% | $49.51 | $47.44 | $49.63 |
| 2019-04-16 | 2019-04-23 | 8 days | -1.7% | $48.90 | $48.06 | $49.51 |
| 2019-04-08 | 2019-04-12 | 5 days | -1.8% | $48.40 | $47.54 | $48.74 |
| 2019-04-04 | 2019-04-05 | 2 days | -1.3% | $48.38 | $47.77 | $48.40 |
| 2019-04-02 | 2019-04-03 | 2 days | -0.2% | $47.95 | $47.87 | $48.38 |
| 2019-03-04 | 2019-04-01 | 28 days | -4.2% | $47.69 | $45.69 | $47.95 |
| 2018-09-05 | 2019-02-27 | 176 days | -28.3% | $44.67 | $32.04 | $45.43 |
| 2018-08-30 | 2018-08-31 | 2 days | -0.2% | $44.21 | $44.10 | $44.22 |
| 2018-08-28 | 2018-08-29 | 2 days | -0.1% | $43.88 | $43.84 | $44.21 |
| 2018-07-26 | 2018-08-27 | 33 days | -5.3% | $43.77 | $41.46 | $43.88 |
| 2018-07-24 | 2018-07-25 | 2 days | -1.5% | $43.08 | $42.41 | $43.77 |
| 2018-07-10 | 2018-07-23 | 14 days | -2.2% | $42.89 | $41.95 | $43.08 |
| 2018-06-21 | 2018-07-06 | 16 days | -4.3% | $41.72 | $39.95 | $42.24 |
| 2018-06-19 | 2018-06-20 | 2 days | -0.6% | $41.69 | $41.46 | $41.72 |
| 2018-06-13 | 2018-06-15 | 3 days | -1.1% | $41.10 | $40.63 | $41.40 |
| 2018-06-07 | 2018-06-08 | 2 days | -0.5% | $40.13 | $39.93 | $40.19 |
| 2018-05-11 | 2018-06-05 | 26 days | -4.5% | $39.35 | $37.59 | $39.64 |
| 2018-04-25 | 2018-05-07 | 13 days | -4.8% | $38.50 | $36.67 | $38.60 |
| 2018-04-19 | 2018-04-24 | 6 days | -2.3% | $37.77 | $36.89 | $38.50 |
| 2018-03-21 | 2018-04-17 | 28 days | -6.6% | $37.58 | $35.11 | $37.68 |
| 2018-03-19 | 2018-03-20 | 2 days | -0.5% | $36.78 | $36.60 | $37.58 |
| 2018-03-15 | 2018-03-16 | 2 days | -0.2% | $36.44 | $36.36 | $36.78 |
| 2018-03-12 | 2018-03-13 | 2 days | -0.5% | $36.12 | $35.94 | $36.31 |
| 2016-07-27 | 2017-04-27 | 275 days | -19.5% | $22.41 | $18.03 | $23.67 |
| 2015-07-22 | 2016-06-30 | 345 days | -31.8% | $21.84 | $14.89 | $21.87 |
| 2014-03-05 | 2015-05-19 | 440 days | -35.7% | $21.40 | $13.76 | $21.42 |
| 2013-11-29 | 2014-02-21 | 85 days | -10.6% | $18.66 | $16.68 | $19.80 |
| 2011-05-13 | 2012-04-27 | 351 days | -35.9% | $7.28 | $4.67 | $7.32 |
| 2007-10-19 | 2011-03-29 | 1258 days | -60.7% | $6.16 | $2.42 | $6.18 |
| 2006-06-07 | 2007-10-09 | 490 days | -37.1% | $6.12 | $3.85 | $6.16 |
| 2006-05-09 | 2006-06-02 | 25 days | -11.4% | $6.00 | $5.32 | $6.05 |
| 2006-03-30 | 2006-04-27 | 28 days | -13.8% | $5.64 | $4.86 | $5.69 |
| 2000-03-14 | 2006-03-29 | 2207 days | -71.1% | $5.21 | $1.51 | $5.64 |
| 1999-07-13 | 2000-03-10 | 242 days | -66.7% | $4.80 | $1.60 | $4.80 |
| 1999-04-16 | 1999-07-06 | 82 days | -22.2% | $4.45 | $3.46 | $4.47 |
| 1999-01-27 | 1999-03-30 | 63 days | -22.4% | $2.51 | $1.95 | $2.65 |
| 1998-12-21 | 1999-01-06 | 17 days | -15.2% | $1.40 | $1.19 | $1.45 |
| 1998-07-31 | 1998-12-17 | 140 days | -49.4% | $1.09 | $0.55 | $1.25 |
How to read: Each row shows a complete drawdown from peak to recovery. Red rows = most severe drawdowns (worst 20% or 5x+ average), yellow rows = moderate (2x-5x worse than average).
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Or explore current drawdowns:
CoStar Group, Inc. (CSGP) is trading at $32.26 as of Aug 21, 2026. It is 67.7% below its high of $99.74. The drawdown has lasted 1,748 days. Severity score: 12.4 (Historic).
CSGP Price History and Drawdown Data
Latest price
$32.26
High-water mark
$99.74
Current drawdown
-67.7%
Days in drawdown
1,748
This CSGP page is built around daily price history, the latest high-water mark, current drawdown depth, drawdown duration, and comparable historical drawdown events. The chart above provides the price-history context, while the sections below explain how the current move compares with prior CoStar Group, Inc. drawdowns.
What History Says About CSGP
CoStar Group, Inc. has dropped 25%+ from its high 10 times in its tracked history. These events lasted an average of 582 days with an average max drop of -44.6%.
The current drawdown of -67.7% has lasted 1,748 days, which is 3.0x the average duration of comparable events.
| Period | Max Drop | Duration |
|---|---|---|
| Mar 2000 to Mar 2006 | -71.1% | 2207 days |
| Jul 1999 to Mar 2000 | -66.7% | 242 days |
| Oct 2007 to Mar 2011 | -60.7% | 1258 days |
| Jul 1998 to Dec 1998 | -49.4% | 140 days |
| Jun 2006 to Oct 2007 | -37.1% | 490 days |
| May 2011 to Apr 2012 | -35.9% | 351 days |
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