CoStar Group, Inc. logo
CSGPCoStar Group, Inc.

The market capitalization for CoStar Group, Inc. (CSGP) is $12.17 Billion, making it a Large Cap company. Market cap is calculated by multiplying the current stock price by the total number of shares outstanding.

Market Capitalization

$12.17B

$12.17 Billion

Calculation

Stock Price
$29.81
Shares Outstanding
408.36M
Market Cap
$12.17B

Market Cap = Price × Shares Outstanding

Size Classification

Large Cap

$10B - $1T

Companies with market capitalization between $10 billion and $1 trillion.

Market Cap Size Scale

Micro Cap

<$250M

Small Cap

$250M-$2B

Mid Cap

$2B-$10B

Large Cap

$10B-$1T

Mega Cap

>$1T

CSGP Market Cap: $12.17 Billion

Related Valuation Metrics

Key Statistics

Market Cap$12.17 Billion
Stock Price$29.81
Shares Outstanding408.36M
Size CategoryLarge Cap
P/E Ratio512.20
P/B Ratio1.56
Data as of Thursday, June 25, 2026

About CoStar Group, Inc.

CoStar Group, Inc. (CSGP) stands as a premier global provider of comprehensive information, sophisticated analytics, and dynamic online marketplace services. The company caters to professionals within the commercial real estate, hospitality, residential, and related industries, extending its reach across the United States, Canada, Europe, the Asia Pacific region, and Latin America. Its diverse suite of offerings encompasses powerful data platforms like CoStar Property, which meticulously catalogues an extensive inventory of various property types, including office, industrial, retail, multifamily, hospitality, student housing, and undeveloped land. Other key analytical tools comprise CoStar COMPS, a robust repository of comparable commercial real estate sales transactions; CoStar Market Analytics, designed for examining aggregated market and submarket trends; and CoStar Tenant, an online business-to-business prospecting and analytical resource providing detailed tenant information. Additionally, CoStar offers solutions for lease management, including Lease Comps and Analysis and CoStar Lease Analysis, alongside Public Record, a searchable database of commercially-zoned land parcels. Its software solutions feature CoStar Real Estate Manager, designed for comprehensive lease administration, portfolio oversight, and lease accounting compliance, as well as specialized CoStar Risk Analytics and CoStar Investment tools. Beyond its data and software platforms, CoStar operates a vast network of online marketplaces. These include prominent apartment marketing sites such as ApartmentFinder.com and ForRent.com; commercial property listing and advertising services through LoopNet (e.g., Premium Lister, Diamond, Platinum, and Gold Ads); and platforms dedicated to rural land sales like LandsofAmerica.com and LandAndFarm.com. It also facilitates the sale of operating businesses and franchises via sites like BizBuySell.com, and serves as an online auction platform for commercial real estate with Ten-X. Furthermore, CoStar supports the residential home-buying market through HomeSnap, an online and mobile software platform, and Homes.com, a comprehensive listings site for properties for sale. CoStar Group, Inc. was established in 1987 and maintains its corporate headquarters in Washington, D.C.

Arlington, VA
8,441 employees
Real Estate / Real Estate - Services
Sector
Real Estate
Industry
Real Estate - Services
CEO
Andrew C. Florance