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Costar Group Inc

costargroup.com

CoStar Group Inc (NASDAQ: CSGP) is a commercial real estate information and marketplace company that provides data, analytics, and online marketplaces to real estate professionals and consumers. It makes money primarily through subscription-based access to its information and analytics platforms, and through marketplace advertising sold to property owners, landlords, and brokers. Its portfolio includes CoStar, the commercial real estate research platform, and the Apartments.com Network, a collection of rental listing sites including Apartments.com, ApartmentFinder, ForRent.com, AFTER55.com, CorporateHousing.com, ForRentUniversity.com, ApartmentHomeLiving.com, Apartamentos.com, WestsideRentals.com, and Off Campus Partners. The Apartments.com Network serves as the flagship consumer-facing residential rental marketplace. CoStar Group also holds a stake in Domain, an Australian real estate platform that operates an Agent Ownership Model providing real estate agencies an economic interest in Domain-affiliated entities.

Products & Services

CoStar (commercial real estate research and analytics platform), Apartments.com Network (Apartments.com, ApartmentFinder, ForRent.com, AFTER55.com, CorporateHousing.com, ForRentUniversity.com, ApartmentHomeLiving.com, Apartamentos.com, WestsideRentals.com, Off Campus Partners), Domain (Australian residential and commercial real estate marketplace with Agent Ownership Model structured equity vehicles).

Revenue Model

Subscription fees for access to commercial real estate data and analytics platforms, and marketplace advertising fees paid by landlords, property managers, and brokers to list properties on the Apartments.com Network and related sites.

Customers & Markets

Commercial real estate brokers, investors, lenders, and appraisers (CoStar platform); residential landlords, property managers, and apartment communities (Apartments.com Network); residential and commercial real estate agencies (Domain AOMs). End markets include commercial real estate transactions and leasing, residential rental housing, and real estate advertising.

Geographic Exposure

Primary operations in the United States; presence in Australia through Domain.

Financial Snapshot

Revenue
TTM
$3.556B
Gross Margin
TTM
78.7%
Net Income
TTM
$73.60M
Current Assets
2026 Q2
$1.654B
Current Liabilities
2026 Q2
$747.0M
Current Ratio
2026 Q2
221.42%
Total Assets
2026 Q2
$10.14B
Total Liabilities
2026 Q2
$2.207B
Book Value
2026 Q2
7.932B
Cash
2026 Q2
$1.266B
P/E
TTM
158.3
Free Cash Flow
TTM
$236.0M

Stock Price

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Market Cap: $11.653 Billion

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