CSGP

Costar Group Inc

Exchange: NASDAQSector: Real EstateIndustry: Real Estate Services

CoStar Group is a global leader in commercial real estate information, analytics, online marketplaces, and 3D digital twin technology. Founded in 1986, CoStar Group is dedicated to digitizing the world’s real estate, empowering all people to discover properties, insights, and connections that improve their businesses and lives. CoStar Group’s major brands include CoStar, a leading global provider of commercial real estate data, analytics, and news; LoopNet, the most trafficked commercial real estate marketplace; Apartments.com, the leading platform for apartment rentals; and Homes.com, the fastest-growing residential real estate marketplace. CoStar Group’s industry-leading brands also include Matterport, a leading spatial data company whose platform turns buildings into data to make every space more valuable and accessible, STR, a global leader in hospitality data and benchmarking, Ten-X, an online platform for commercial real estate auctions and negotiated bids and OnTheMarket, a leading residential property portal in the United Kingdom. CoStar Group’s websites attracted over 130 million average monthly unique visitors in the first quarter of 2025, serving clients around the world. Headquartered in Arlington, Virginia, CoStar Group is committed to transforming the real estate industry through innovative technology and comprehensive market intelligence. From time to time, we plan to utilize our corporate website as a channel of distribution for material company information.

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Trading 71% above its estimated fair value of $10.81.

Current Price

$37.38

-3.59%

GoodMoat Value

$10.81

71.1% overvalued

Profile

Valuation (TTM)

Market Cap$15.84B

P/E2263.21

EV$17.64B

P/B1.90

Shares Out423.82M

P/Sales4.88

Revenue$3.25B

EV/EBITDA47.35

Costar Group Inc (CSGP) Company Profile

GoodMoat Analysis

Based on data as of March 26, 2026

CoStar Group is a dominant provider of commercial real estate data and analytics, with a powerful network effect moat. However, its extreme valuation metrics, including a P/E of over 2,500 and a 0.2% profit margin, present a significant challenge for a value investor seeking a margin of safety.

Read full analysis

CoStar Group operates a powerful data and analytics platform for the commercial real estate industry. Its core business involves collecting, verifying, and selling detailed information on properties, listings, sales, and tenants. Its customers are primarily real estate professionals like brokers, agents, investors, and property managers who rely on its comprehensive and accurate data to make informed decisions. The company's primary competitive advantage, or moat, is a powerful network effect (Section 1, Criterion 1). As more professionals use its platform, more data is contributed, making the service more valuable and attracting even more users, creating a virtuous cycle that is difficult for competitors to replicate. This is reinforced by high switching costs, as the data is mission-critical and integrated into daily workflows. However, the investment case is overshadowed by severe red flags (Section 5). The valuation is extreme, with a P/E of 2,507 and a price far above the GoodMoat Target of $10.81. The company's profitability is minimal, with a 0.2% profit margin and a negative operating margin of -2.2%. While revenue growth is strong at 26.9% YoY, the combination of extreme valuation, low profitability, and a free cash flow yield of just 0.2% makes the stock unfavourable from a traditional value investing perspective, which seeks a margin of safety not present here. A value investor might be interested in the underlying strength of the business model but would likely require a much lower price to account for the risks.

CSGP Company Information

CoStar Group is a global leader in commercial real estate information, analytics, online marketplaces, and 3D digital twin technology.

Founded in 1986, CoStar Group is dedicated to digitizing the world’s real estate, empowering all people to discover properties, insights, and connections that improve their businesses and lives.

CoStar Group’s major brands include CoStar, a leading global provider of commercial real estate data, analytics, and news; LoopNet, the most trafficked commercial real estate marketplace; Apartments.

com, the leading platform for apartment rentals; and Homes. com, the fastest-growing residential real estate marketplace.

CoStar Group’s industry-leading brands also include Matterport, a leading spatial data company whose platform turns buildings into data to make every space more valuable and accessible, STR, a global leader in hospitality data and benchmarking, Ten-X, an online platform for commercial real estate auctions and negotiated bids and OnTheMarket, a leading residential property portal in the United Kingdom.

CoStar Group’s websites attracted over 130 million average monthly unique visitors in the first quarter of 2025, serving clients around the world.

Headquartered in Arlington, Virginia, CoStar Group is committed to transforming the real estate industry through innovative technology and comprehensive market intelligence.

From time to time, we plan to utilize our corporate website as a channel of distribution for material company information.

Sector

Real Estate

Industry

Real Estate Services

Exchange

NASDAQ

Country

District Of Columbia, USA

CSGP Key Officers

Key officers data coming soon

CSGP Company Profile

Costar Group Inc (CSGP) is a Real Estate company in the Real Estate Services industry. It trades on NASDAQ. The company is based in District Of Columbia, USA.

Market cap is $15.84B. There are 423.8M shares outstanding.

See the full Costar Group Inc profile on GoodMoat. It covers key officers, financial metrics, and sector details. You can also use GoodMoat's DCF calculator, fair value models, and quality score to help decide if CSGP is a good investment.