Here’s Why CoStar Group (CSGP) Traded Lower in 2025

Group 1: Vulcan Value Partners Overview - Vulcan Value Partners released its fourth-quarter 2025 investor letter, reporting positive results across all strategies despite overvalued markets [1] - The Large Cap Composite (Net) returned -1.5% in Q4 and 7.9% YTD, while the Small Cap Composite (Net) gained 3.2% in Q4 and 9.5% YTD [1] - The Focus Composite (Net) and Focus Plus Composite (Net) both returned 0.1% in Q4, with YTD returns of 7.1% and 6.2% respectively, and the All-Cap Composite (Net) returned 1.3% in Q4 and 10.7% YTD [1] - The firm emphasized prioritizing safety and long-term gains over short-term performance, drawing parallels to the late 1990s dot-com bubble [1] Group 2: CoStar Group, Inc. Analysis - CoStar Group, Inc. was highlighted as a notable detractor within Vulcan's Focus Plus Strategy, with shares trading between $57.01 and $97.43 over the past 52 weeks [2] - As of January 26, 2026, CoStar Group's stock closed at $65.81, with a one-month return of -3.02% and a three-month loss of 15.88% [2] - CoStar Group has a market capitalization of $27.89 billion [2] Group 3: CoStar Group's Business Performance - CoStar Group is recognized as a premier information services provider for the commercial and residential real estate industries, with a subscription-based revenue model [3] - The company has experienced solid double-digit revenue growth and consistent margin expansion in its core businesses, although enterprise-level margins have contracted due to significant investments in Homes.com [3] - The firm views the success of Homes.com as optional and has attributed no value to this asset, noting that the results from residential efforts have not met long-term expectations [3] - CoStar's non-core residential efforts are expected to continue being loss-making for many years, prompting ongoing evaluation of the company's new information [3]