This article was automatically generated by MarketWatch using technology from Automated Insights.
Shares of CoStar Group Inc. (CSGP) slid 2.47% to $66.33 Monday, on what proved to be an all-around grim trading session for the stock market, with the S&amp;P 500 Index  falling 0.35% to 6,846.51 and Dow Jones Industrial Average  falling 0.45% to 47,739.32.
This was the stock's third consecutive day of losses.
CoStar Group Inc. closed 31.92% below its 52-week high of $97.43, which the company reached on August 5th.
Trading volume (3.4 M) remained 486,950 below its 50-day average volume of 3.9 M.
Data source: Dow Jones Market Data, FactSet. Data compiled December 8, 2025.
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(END) Dow Jones Newswires
12-08-25 1659ET

CSGP

<p>CoStar Group Inc.'s stock fell 2.47% to $66.33 on Monday, underperforming the market during a grim trading session. The S&P 500 Index fell 0.35% and the Dow Jones Industrial Average dropped 0.45%. This marks the third consecutive day of losses for CoStar, closing 31.92% below its 52-week high. Trading volume was below the 50-day average.</p>

CoStar Group Inc. Stock Falls Monday, Underperforms Market