Arlington, Virginia-based CoStar Group, Inc. (CSGP) operates as an information services provider to the commercial real estate industry. With a market cap of $36.6 billion, the company offers information, analytics, and online marketplace services in the Americas, Europe, and the Indo-Pacific. Companies worth $10 billion or more are generally described as "large-cap stocks." CoStar Group fits right into that category, with its market cap exceeding this threshold, reflecting its substantial size, influence ...