
Washington, D.C.-based CoStar Group, Inc. (CSGP) is a leading provider of commercial real estate information, analytics, and online marketplaces. With a market cap of $30.4 billion, the company delivers comprehensive data, insights, and digital tools to real estate professionals, investors, and property managers. Its suite of platforms includes CoStar, LoopNet, Apartments.com, and Ten-X, catering to various segments of the real estate industry.
CoStar shares have considerably underperformed the broader market over the past 52 weeks. CSGP has declined 7.3% during this period, while the S&P 500 Index ($SPX) returned 22,5%. However, in 2025, CSGP shares soared 5.4%, surpassing SPX's 4.2% gain on a YTD basis.