Question 1

What is CoStar Group's P/B ratio?

Accepted Answer

CoStar Group (CSGP) P/B ratio is 1.4× as of July 22, 2026. The ratio is calculated by dividing market capitalisation by book value of equity, using USD-normalised financials (IAS 21 exchange-rate translation for non-USD reporters).

Question 2

How is the P/B ratio calculated?

Accepted Answer

P/B = Market Capitalisation ÷ Book Value of Equity (most recent quarterly shareholders' equity), or equivalently Share Price ÷ Book Value Per Share. 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/B ratio?

Accepted Answer

The price-to-book (P/B) ratio compares a company's market capitalisation to its book value of equity (total shareholders' equity) on the most recent quarterly balance sheet. It is calculated as market cap ÷ book value of equity (equivalent to share price ÷ book value per share). A P/B below 1× implies the market values the business below its accounting net worth; values well above 1× reflect intangible assets, brand value, or a high return on equity.

Question 4

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

Accepted Answer

A "good" P/B depends on the business model. Banks, insurers, and other capital-heavy financials typically trade near 1×; asset-light technology and consumer-brand companies can sustainably trade at 5×+ because much of their value is intangible. P/B is most informative when paired with return on equity (ROE). For CoStar Group specifically, the relevant sector benchmark is the current sector median of 2.0×.

Question 5

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

Accepted Answer

CoStar Group's P/B ratio of 1.4× is below its own 5-year average of 4.4× and below the sector median of 2.0×. That places the current reading at the 0th 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/B ratio range?

Accepted Answer

In the available daily series, CoStar Group (CSGP) P/B ratio has ranged from a low of 1.4× in 2026 to a high of 7.1× in 2021. The 5-year average is 4.4× and the 5-year median is 4.1×.

Question 7

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

Accepted Answer

CoStar Group (CSGP) P/B ratio at the end of 2025 was 3.4×. Annual values reflect the multiple on the last trading day of each calendar year, using the trailing twelve-month book value figure available at that date.

Question 8

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

Accepted Answer

Valuation multiples move with two inputs: the numerator (market capitalisation, which tracks the share price) and the denominator (book value). 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	$28.1B	$8.33B	3.4×	-0.5×	Dec 31, 2025
2024	$29.1B	$7.55B	3.9×	-1.0×	Dec 31, 2024
2023	$35.5B	$7.34B	4.8×	+0.3×	Dec 31, 2023
2022	$31.2B	$6.87B	4.5×	-0.9×	Dec 31, 2022
2021	$31B	$5.71B	5.4×	-1.3×	Dec 31, 2021
2020	$36.2B	$5.38B	6.7×	+0.3×	Dec 31, 2020
2019	$21.8B	$3.41B	6.4×	+2.4×	Dec 31, 2019
2018	$12.2B	$3.02B	4.0×	+0.0×	Dec 31, 2018
2017	$10.6B	$2.65B	4.0×	+0.3×	Dec 31, 2017
2016	$6.07B	$1.65B	3.7×	-0.6×	Dec 31, 2016
2015	$6.61B	$1.54B	4.3×	+0.4×	Dec 31, 2015
2014	$5.83B	$1.51B	3.9×	-1.7×	Dec 31, 2014
2013	$5.14B	$928M	5.5×	+2.6×	Dec 31, 2013
2012	$2.44B	$826M	3.0×	+0.4×	Dec 31, 2012
2011	$1.67B	$659M	2.5×	-0.5×	Dec 31, 2011
2010	$1.17B	$382M	3.1×	+0.7×	Dec 31, 2010
2009	$846M	$359M	2.4×	+0.2×	Dec 31, 2009
2008	$640M	$303M	2.1×	-1.1×	Dec 31, 2008
2007	$906M	$282M	3.2×	-0.8×	Dec 31, 2007
2006	$1.01B	$250M	4.0×	+0.5×	Dec 31, 2006
2005	$805M	$225M	3.6×	-0.4×	Dec 31, 2005
2004	$845M	$211M	4.0×	-0.2×	Dec 31, 2004
2003	$715M	$168M	4.2×	+1.4×	Dec 31, 2003
2002	$292M	$104M	2.8×	—	Dec 31, 2002


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Welltower (WELL)	3.2×
Ventas (VTR)	3.0×
Digital Realty Trust (DLR)	2.7×
Mid-America Apartment Communities (MAA)	2.6×
Camden Property Trust (CPT)	2.5×
Regency Centers (REG)	2.1×
Extra Space Storage (EXR)	2.1×
AvalonBay Communities (AVB)	2.0×
Host Hotels & Resorts (HST)	1.9×
STAG Industrial (STAG)	1.9×
Weyerhaeuser (WY)	1.9×
NNN REIT (NNN)	1.8×
Invitation Homes (INVH)	1.7×
BXP (BXP)	1.6×
Healthpeak Properties (DOC)	1.5×
Kimco Realty (KIM)	1.5×
Agree Realty (ADC)	1.4×
Realty Income (O)	1.4×
VICI Properties (VICI)	1.0×
Apartment Investment and Management (AIV)	0.8×
Medical Properties Trust (MPT)	0.6×
Alexandria Real Estate Equities (ARE)	0.6×
Arbor Realty Trust (ABR)	0.5×

P/B Ratio for CoStar Group (CSGP) 2002-2026

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

Historical P/B Ratio for CoStar Group (CSGP) from 2002 to 2025

About P/B Ratio at CoStar Group (CSGP)

CoStar Group P/B Ratio by Year

CoStar Group P/B Ratio 2025: 3.4×

CoStar Group P/B Ratio 2024: 3.9×

CoStar Group P/B Ratio 2023: 4.8×

CoStar Group P/B Ratio 2022: 4.5×

CoStar Group P/B Ratio 2021: 5.4×

Sector peers by P/B Ratio — chart

Sector peers by P/B Ratio — table

Frequently asked questions

CoStar Group (CSGP) Key Financials