CoStar Group Inc (CSGP)
Real Estate ยท Services-Business Services, NEC
CoStar Group Inc (CSGP) is listed on Nasdaq, where its shares have traded since July 1, 1998. SentiSense covers CoStar Group Inc in the Real Estate sector, and its Standard Industrial Classification is Services-Business Services, NEC. Andy Florance is its chief executive officer. The company reports 8,000 employees, and its corporate website is www.costargroup.com.
About CoStar Group Inc
CoStar Group is a global provider of proprietary information, analytics, and online marketplaces serving both commercial and residential real estate. The firm operates through a diverse portfolio of brands, including CoStar Suite for commercial real estate research, LoopNet for commercial listings, Apartments.com for multifamily rentals, and Homes.com for residential brokerage. It primarily sells high-margin software-as-a-service subscriptions that provide institutional clients with forensic property data and premium advertising visibility. With operations across North America, Europe, and Asia-Pacific, CoStar maintains the industry's most comprehensive centralized real estate database, functioning as a critical information utility for brokers, lenders, and owners worldwide.
Institutional ownership
In 13F filings for the quarter ended June 30, 2026, 737 institutions reported holding CSGP, with 407.0 million shares worth $11.5 billion in aggregate. The largest reported holders were Vanguard, BlackRock and Bamco Inc. Of the 5 largest reported holders, 3 added shares and 2 reduced their positions during the quarter.
More on CSGP
- CSGP sentiment: whether news and social coverage of CoStar Group Inc leans bullish or bearish, and the stories driving it.
- CSGP ownership: all 737 reporting institutions, plus insider and congressional trades.
- CSGP financials: revenue, net income, operating margin and free cash flow by quarter and year.
SentiSense also tracks daily options readings for CoStar Group Inc: IV rank, put/call percentile, 25-delta skew and open-interest walls.
Frequently asked questions
What does CoStar Group Inc do?
CoStar Group is a global provider of proprietary information, analytics, and online marketplaces serving both commercial and residential real estate.
What sector is CSGP in?
SentiSense classifies CoStar Group Inc in the Real Estate sector, and its Standard Industrial Classification is Services-Business Services, NEC.
Where does CSGP stock trade?
CoStar Group Inc (CSGP) is listed on Nasdaq, where its shares have traded since July 1, 1998.
Who is the CEO of CoStar Group Inc?
Andy Florance is the chief executive officer of CoStar Group Inc.