CoStar Group (CSGP) Stock Chart & Stock Price History $79.57 -0.32 (-0.40%) Closing price 06/18/2025 04:00 PM EasternExtended Trading$79.38 -0.19 (-0.25%) As of 04:10 AM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock CoStar Group Stock Price Performance The CoStar Group (CSGP) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 8.90%, with a year-to-date return of 11.15%. In the past month, the stock has increased 4.19%, reflecting recent market activity. As of the latest close, CoStar Group traded at $79.57 with a market cap of $33.57 billion and volume of 2.96 million shares. 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Email Address 5 Day Performance-1.96%1 Month Performance+4.19%3 Month Performance+0.70%Year-To-Date Performance+11.15%1 Year Performance+8.90% CSGP Stock Chart for Friday, June, 20, 2025 CSGP Chart by TradingView CoStar Group Stock Price History Daily Weekly Monthly Yearly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 3 Year 5 Year Time Frame Start Date End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization06/19/2025$79.57$79.57$80.46$79.022.96 million shs$33.57 billion06/18/2025$79.89$79.57-0.40%$80.46$79.022.96 million shs$33.57 billion06/17/2025$81.94$79.89-2.50%$81.97$79.733.73 million shs$33.70 billion06/16/2025$81.16$81.94+0.96%$82.89$81.492.50 million shs$34.57 billion06/13/2025$82.37$81.16-1.47%$82.00$80.532.67 million shs$34.24 billion06/12/2025$81.79$82.37+0.71%$83.48$81.712.93 million shs$34.75 billion06/11/2025$81.07$81.79+0.89%$82.30$80.743.46 million shs$34.51 billion06/10/2025$78.92$81.07+2.72%$81.12$79.042.61 million shs$34.20 billion06/09/2025$78.52$78.92+0.51%$79.56$77.921.94 million shs$33.30 billion06/06/2025$78.20$78.52+0.41%$79.34$78.272.10 million shs$33.13 billion Get the Latest News and Ratings for CSGP and Related StocksEnter your email address below to receive the latest news and analysts' ratings for CoStar Group and its competitors with MarketBeat's FREE daily newsletter. 06/05/2025$77.06$78.20+1.48%$79.99$77.073.39 million shs$32.99 billion06/04/2025$75.69$77.06+1.81%$77.15$75.313.17 million shs$32.51 billion06/03/2025$73.27$75.69+3.30%$75.75$72.843.02 million shs$31.93 billion06/02/2025$72.50$73.27+1.06%$73.41$71.352.69 million shs$30.91 billion05/30/2025$74.07$72.50-2.12%$74.00$71.946.15 million shs$30.59 billion05/29/2025$74.24$74.07-0.23%$74.82$73.462.14 million shs$31.25 billion05/28/2025$74.61$74.24-0.50%$75.00$74.151.86 million shs$31.32 billion05/27/2025$73.99$74.61+0.84%$75.25$74.242.72 million shs$31.48 billion05/26/2025$73.99$73.99$74.08$73.251.90 million shs$31.22 billion05/23/2025$74.14$73.99-0.20%$74.08$73.251.90 million shs$31.22 billion05/22/2025$73.96$74.14+0.24%$74.70$73.292.98 million shs$31.28 billion05/21/2025$76.37$73.96-3.16%$76.37$73.963.07 million shs$31.20 billion05/20/2025$76.91$76.37-0.70%$77.12$76.063.42 million shs$32.22 billion05/19/2025$76.99$76.91-0.10%$77.20$75.772.94 million shs$32.45 billion Related Companies SEA Stock Price Chart Equinix Stock Price Chart eBay Stock Price Chart VeriSign Stock Price Chart Akamai Technologies Stock Price Chart SPS Commerce Stock Price Chart Yelp Stock Price Chart Ziff Davis Stock Price Chart Cimpress Stock Price Chart QuinStreet Stock Price Chart Receive CSGP Stock News and Ratings via EmailSign-up to receive the latest news and ratings for CoStar Group and its competitors with MarketBeat's FREE daily newsletter. 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