Question 1

What is CoStar Group's P/E ratio?

Accepted Answer

CoStar Group (CSGP) P/E ratio is 554.6× as of June 5, 2026. The ratio is calculated by dividing market capitalisation by trailing twelve-month earnings (net income), using USD-normalised financials (IAS 21 exchange-rate translation for non-USD reporters).

Question 2

How is the P/E ratio calculated?

Accepted Answer

P/E = Share Price ÷ Trailing Twelve-Month (TTM) Diluted EPS, or equivalently Market Capitalisation ÷ TTM Net Income. All inputs are sourced from audited GAAP/IFRS filings and translated to USD using period-end exchange rates so the multiple is comparable across companies and currencies.

Question 3

What is the P/E ratio?

Accepted Answer

The price-to-earnings (P/E) ratio, also called the earnings multiple, measures how much investors pay per dollar of a company's trailing twelve-month (TTM) earnings. It is calculated as share price ÷ TTM diluted EPS (equivalent to market capitalisation ÷ TTM net income). A higher P/E implies the market is pricing in stronger future earnings growth or lower risk; a lower P/E can signal slower expected growth, higher risk, or potential undervaluation.

Question 4

What is a good P/E ratio for CoStar Group?

Accepted Answer

There is no universal "good" P/E. As a rule of thumb, the S&P 500 has historically averaged a P/E in the mid-to-high teens; mature, slow-growth businesses commonly trade in the 10–18× range, while high-growth or asset-light companies often trade at 25–50×+. What matters is the comparison to sector peers and to the company's own historical range. For CoStar Group specifically, the relevant sector benchmark is the current sector median of 27.5×.

Question 5

Is CoStar Group's P/E ratio high or low?

Accepted Answer

CoStar Group's P/E ratio of 554.6× is above its own 5-year average of 422.9× and above the sector median of 27.5×. That places the current reading at the 89th percentile of its 10-year history. A higher multiple usually reflects stronger expected growth, lower perceived risk, or higher returns on capital; a lower multiple reflects the opposite.

Question 6

What is CoStar Group's historical P/E ratio range?

Accepted Answer

In the available daily series, CoStar Group (CSGP) P/E ratio has ranged from a low of 23.0× in 2009 to a high of 7154.1× in 2003. The 5-year average is 422.9× and the 5-year median is 135.6×.

Question 7

What was CoStar Group's P/E ratio in 2025?

Accepted Answer

CoStar Group (CSGP) P/E ratio at the end of 2025 was 3740.3×. Annual values reflect the multiple on the last trading day of each calendar year, using the trailing twelve-month earnings figure available at that date.

Question 8

Why does CoStar Group's P/E ratio change over time?

Accepted Answer

Valuation multiples move with two inputs: the numerator (market capitalisation, which tracks the share price) and the denominator (earnings). Share-price changes — driven by interest rates, earnings expectations, risk appetite, and broader market sentiment — typically dominate short-term moves, while changes in the underlying fundamental drive the longer-term trend. As a result, the ratio can rise during stock-price rallies even if the business itself has not become more valuable, and fall during sell-offs even when fundamentals are improving.


2025	$28.05B	$7.50M	3740.3×	+3530.3×	Dec 31, 2025
2024	$29.13B	$138.70M	210.0×	+115.4×	Dec 31, 2024
2023	$35.46B	$374.65M	94.7×	+10.1×	Dec 31, 2023
2022	$31.24B	$369.45M	84.5×	-21.5×	Dec 31, 2022
2021	$31.02B	$292.56M	106.0×	-53.2×	Dec 31, 2021
2020	$36.17B	$227.13M	159.3×	+90.2×	Dec 31, 2020
2019	$21.75B	$314.96M	69.1×	+17.9×	Dec 31, 2019
2018	$12.19B	$238.33M	51.1×	-35.2×	Dec 31, 2018
2017	$10.60B	$122.69M	86.4×	+15.0×	Dec 31, 2017
2016	$6.07B	$85.07M	71.4×	—	Dec 31, 2016
2015	$6.61B	−$3.46M	—	—	Dec 31, 2015
2014	$5.83B	$44.87M	130.0×	-43.0×	Dec 31, 2014
2013	$5.14B	$29.73M	172.9×	-73.2×	Dec 31, 2013
2012	$2.44B	$9.91M	246.1×	+132.3×	Dec 31, 2012
2011	$1.67B	$14.66M	113.8×	+25.4×	Dec 31, 2011
2010	$1.17B	$13.29M	88.4×	+43.1×	Dec 31, 2010
2009	$845.86M	$18.69M	45.3×	+19.2×	Dec 31, 2009
2008	$640.50M	$24.62M	26.0×	-30.8×	Dec 31, 2008
2007	$905.53M	$15.95M	56.8×	-24.6×	Dec 31, 2007
2006	$1.01B	$12.41M	81.3×	-43.4×	Dec 31, 2006
2005	$805.33M	$6.46M	124.7×	+90.9×	Dec 31, 2005
2004	$845.46M	$24.98M	33.8×	-7120.2×	Dec 31, 2004
2003	$715.41M	$100.00K	7154.1×	—	Dec 31, 2003
2002	$292.21M	−$4.78M	—	—	Dec 31, 2002
2001	$375.77M	−$20.16M	—	—	Dec 31, 2001


Prologis (PLD)	33.1×
Universal Health Realty Income Trust (UHT)	31.4×
Tanger (SKT)	31.0×
CBRE Group (CBRE)	30.4×
Extra Space Storage (EXR)	29.3×
STAG Industrial (STAG)	28.2×
American Tower (AMT)	28.0×
Essex Property Trust (ESS)	27.1×
Camden Property Trust (CPT)	26.4×
BXP (BXP)	26.0×
Invitation Homes (INVH)	25.8×
Public Storage (PSA)	25.0×
Kimco Realty (KIM)	24.5×
Equity Residential (EQR)	23.3×
UDR (UDR)	22.5×
Regency Centers (REG)	22.1×
NNN REIT (NNN)	20.5×
AvalonBay Communities (AVB)	20.0×
Federal Realty Investment Trust (FRT)	18.0×
SBA Communications (SBAC)	17.9×
Host Hotels & Resorts (HST)	13.1×
Simon Property Group (SPG)	12.9×
Arbor Realty Trust (ABR)	12.6×
VICI Properties (VICI)	9.4×
Apartment Investment and Management (AIV)	1.0×

P/E Ratio for CoStar Group (CSGP)

P/E Ratio daily chart for CoStar Group (CSGP)

Historical P/E Ratio for CoStar Group (CSGP) from 2001 to 2025

About P/E Ratio at CoStar Group (CSGP)

CoStar Group P/E Ratio by Year

CoStar Group P/E Ratio 2025: 3740.3×

CoStar Group P/E Ratio 2024: 210.0×

CoStar Group P/E Ratio 2023: 94.7×

CoStar Group P/E Ratio 2022: 84.5×

CoStar Group P/E Ratio 2021: 106.0×

Sector peers by P/E Ratio — chart

Sector peers by P/E Ratio — table

Frequently asked questions

CoStar Group (CSGP) Key Financials

P/E Ratio daily chart for CoStar Group (CSGP)

Historical P/E Ratio for CoStar Group (CSGP) from 2001 to 2025

About P/E Ratio at CoStar Group (CSGP)

CoStar Group P/E Ratio by Year

CoStar Group P/E Ratio 2025: 3740.3×

CoStar Group P/E Ratio 2024: 210.0×

CoStar Group P/E Ratio 2023: 94.7×

CoStar Group P/E Ratio 2022: 84.5×

CoStar Group P/E Ratio 2021: 106.0×

Sector peers by P/E Ratio — chart

Sector peers by P/E Ratio — table

Frequently asked questions

+What is CoStar Group's P/E ratio?

+How is the P/E ratio calculated?

+What is the P/E ratio?

+What is a good P/E ratio for CoStar Group?

+Is CoStar Group's P/E ratio high or low?

+What is CoStar Group's historical P/E ratio range?

+What was CoStar Group's P/E ratio in 2025?

+Why does CoStar Group's P/E ratio change over time?

CoStar Group (CSGP) Key Financials