Market Cap

CoStar Group, Inc. Market Capitalization:

$34.35 Billion

USD as of July 1, 2025

business CoStar Group, Inc. Company Profile

CoStar Group, Inc. Main Stock Listing

NASDAQ: CSGP

Market Capitalization History of CoStar Group, Inc.

Market capitalizations are calculated from the opening stock price at the beginning of each month.

Top Competitors by Market Capitalization

Industry: Real Estate Services
Company Market Cap (USD)
CBRE Group, Inc. $42.80 B
Vonovia SE $29.07 B
KE Holdings Inc. $21.44 B
Sumitomo Realty & Development Co. Ltd $18.40 B
Henderson Land Development Co Ltd $17.89 B
Sector: Real Estate
Company Market Cap (USD)
American Tower $103.81 B
Prologis, Inc. $100.50 B
Welltower Inc. $98.56 B
Equinix, Inc. (REIT) $77.78 B
Simon Property Group, Inc. $62.88 B

Yearly evolution of CoStar Group, Inc. market cap

Date Market Cap YoY Change
Jan. 1, 2025 $30.49 B -9.81%
Jan. 1, 2024 $33.81 B 10.99%
Jan. 1, 2023 $30.46 B 9.92%
Jan. 1, 2022 $27.71 B -22.02%
Jan. 1, 2021 $35.54 B 37.78%
Jan. 1, 2020 $25.79 B 67.12%
Jan. 1, 2019 $15.43 B 12.89%
Jan. 1, 2018 $13.67 B 71.26%
Jan. 1, 2017 $7.98 B 15.24%
Jan. 1, 2016 $6.93 B -4.95%
Jan. 1, 2015 $7.29 B 7.25%
Jan. 1, 2014 $6.80 B 83.45%
Jan. 1, 2013 $3.70 B 65.48%
Jan. 1, 2012 $2.24 B 0.69%
Jan. 1, 2011 $2.22 B 39.38%
Jan. 1, 2010 $1.59 B 36.33%
Jan. 1, 2009 $1.17 B -30.04%
Jan. 1, 2008 $1.67 B -10.81%
Jan. 1, 2007 $1.87 B -5.06%
Jan. 1, 2006 $1.97 B 16.41%
Jan. 1, 2005 $1.70 B 4.02%
Jan. 1, 2004 $1.63 B 104.91%
Jan. 1, 2003 $795.9 M -13.33%
Jan. 1, 2002 $918.3 M -17.88%
Jan. 1, 2001 $1.12 B

Market capitalization is calculated from the opening stock price at the beginning of each year.

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CoStar Group, Inc. Categories

United States languages Real Estate languages Real Estate Services
United States Real Estate United States Real Estate Services

Stocks & Indices

CoStar Group, Inc. has the following listings and related stock indices.


Stock: NASDAQ: CSGP

Stock: BMV: CSGP

Stock: Bovespa: C1GP34

Stock: FSX: RLG

What is a company's market capitalization?

The market capitalization of a company, more simply referred to as "market cap", is the total market value of a publicly traded company's outstanding shares. It is often considered as a key indicator of what a company is worth.