What Makes CoStar Group (CSGP) an Investment Bet?

Core Insights - Parnassus Mid Cap Growth Fund reported a return of 13.29% for Q2 2025, underperforming the Russell Midcap Growth Index which returned 18.20% [1] - Stock selection in the Industrials and Information Technology sectors negatively impacted performance, while holdings in the Financials sector contributed positively [1] Company Focus: CoStar Group, Inc. - CoStar Group, Inc. (NASDAQ:CSGP) is highlighted as a key investment, providing information, analytics, and online marketplace services for the real estate industry [2][3] - The stock experienced a one-month return of -6.95% but gained 12.47% over the last 52 weeks, closing at $84.05 with a market capitalization of $35.608 billion on September 24, 2025 [2] - Parnassus expects CoStar's return on capital to improve as management refocuses on core businesses, anticipating favorable outcomes due to double-digit earnings growth in its core business and improved profitability in its Homes.com marketplace [3] Hedge Fund Interest - CoStar Group, Inc. was held by 59 hedge fund portfolios at the end of Q2 2025, an increase from 51 in the previous quarter [4] - Despite the potential of CoStar as an investment, the company notes that certain AI stocks may offer greater upside potential with less downside risk [4]