When did CSGP join the S&P 500?

CoStar Group joined the S&P 500 index on 2022-09-19.

What sector is CSGP in?

CSGP is in the Real Estate sector, Real Estate Services industry.

CSGP — CoStar Group

Name: CSGP Institutional Holdings (13F) — 2026Q1
Creator: SEC EDGAR
License: https://www.sec.gov/data

Real Estate Services · Real Estate

Key Facts

Status	Active
Sector	Real Estate
Industry	Real Estate Services
Joined	2022-09-19
Tenure	3 yrs

CoStar Group Inc is a leading provider of commercial real estate data and market listing platforms. Its database offers in-depth analysis of more than 5 million commercial real estate properties across various subsectors, including office, retail, hospitality, multifamily, healthcare, industrial, self-storage, and data centers. The company operates several highly regarded brands, such as CoStar Suite, LoopNet, Apartments.com, BizBuySell, and Lands of America, with more than 80% of its revenue derived from subscription-based services. The company has recently expanded its operations to Canada, the United Kingdom, Spain, and France.

Industry Peers

CBRE

Sector Peers

AMT ARE AVB BXP CBRE CCI CPT DLR DOC EQIX

S&P 500 Timeline

2022-09-19Joined S&P 500

Institutional Holdings (13F)

801 institutions hold CSGP, totaling 485.7M shares ($20.8B) · As of 2026Q1

Rank	Institution	Shares	Value
1	VANGUARD CAPITAL MANAGEMENT LLC	54.8M	$2.2B
2	VANGUARD PORTFOLIO MANAGEMENT LLC	38.2M	$1.5B
3	BlackRock, Inc.	33.8M	$1.4B
4	MORGAN STANLEY	19.2M	$1.3B
5	BARCLAYS PLC	16.2M	$1.2B
6	STATE STREET CORP	18.7M	$752M
7	PRINCIPAL FINANCIAL GROUP INC	17.7M	$714M
8	BAMCO INC /NY/	16.3M	$658M
9	Capital International Investors	15.5M	$626M
10	GOLDMAN SACHS GROUP INC	13.0M	$625M

View all holders →

Data source: Wikipedia · CC BY-SA 4.0 · SEC EDGAR 13F · Updated 2026-07-10