Here’s Why Baron Opportunity Fund Sold CoStar Group (CSGP)

Baron Capital, an investment management company, released its Q2 2026 investor letter for the “Baron Opportunity Fund”. A copy of the letter is available to download here. During the second quarter, the Baron Opportunity Fund increased 27.07% (Institutional Shares), outperforming both the Russell 3000 Growth Index (17.05%) and the S&P 500 Index (15.20%). For the first half of 2026, the Fund rose by 15.79% against the Benchmark's 5.88% and the S&P 500's 10.21%. The rally was primarily driven by AI-related growth, despite uncertainty from geopolitical conflicts and inflation. A select...