Castle Biosciences (CSTL) Stock Chart & Stock Price History $19.31 -0.74 (-3.69%) Closing price 04:00 PM EasternExtended Trading$19.29 -0.02 (-0.10%) As of 04:36 PM 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 Castle Biosciences Stock Price Performance 5 Day Performance-6.40%1 Month Performance-2.38%3 Month Performance-31.69%6 Month Performance-41.75%Year-To-Date Performance-27.54%1 Year Performance-12.31% Receive CSTL Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Castle Biosciences and its competitors with MarketBeat's FREE daily newsletter. Email Address CSTL Stock Chart for Thursday, May, 1, 2025 CSTL Chart by TradingView Castle Biosciences Stock Price History Daily Weekly Monthly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year Time Frame * Start Date * End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization05/01/2025$20.05$19.31-3.69%$20.27$19.28471,140 shs$557.00 million04/30/2025$19.85$20.05+1.01%$20.12$19.35394,176 shs$578.34 million04/29/2025$20.09$19.85-1.19%$20.32$19.63322,452 shs$572.57 million04/28/2025$20.63$20.09-2.62%$20.82$19.62489,240 shs$579.50 million04/25/2025$20.93$20.63-1.43%$20.86$20.33298,200 shs$595.07 million04/24/2025$21.27$20.93-1.60%$21.87$20.26567,317 shs$603.73 million04/23/2025$21.98$21.27-3.23%$22.82$21.21468,264 shs$613.53 million04/22/2025$21.14$21.98+3.97%$22.09$21.05350,108 shs$634.01 million04/21/2025$21.51$21.14-1.72%$21.79$21.12635,223 shs$609.78 million04/18/2025$21.51$21.51$21.81$21.13454,033 shs$620.33 million Get the Latest News and Ratings for CSTL and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Castle Biosciences and its competitors with MarketBeat's FREE daily newsletter. 04/17/2025$21.26$21.51+1.18%$21.81$21.13454,033 shs$620.33 million04/16/2025$21.05$21.26+1.00%$21.47$20.38501,771 shs$613.12 million04/15/2025$19.89$21.05+5.83%$21.10$19.75515,586 shs$607.06 million04/14/2025$19.70$19.89+0.96%$20.11$19.50193,476 shs$573.61 million04/11/2025$19.30$19.70+2.07%$20.05$19.12209,020 shs$568.13 million04/10/2025$20.11$19.30-4.03%$19.80$18.72251,032 shs$556.59 million04/09/2025$18.60$20.11+8.12%$20.77$18.03553,158 shs$579.95 million04/09/2025$18.60$20.11+8.12%$20.77$18.03553,158 shs$579.95 million04/08/2025$19.09$18.60-2.57%$20.10$18.20419,183 shs$536.41 million04/08/2025$19.09$18.60-2.57%$20.10$18.20419,183 shs$536.41 million04/07/2025$18.57$19.09+2.80%$19.97$17.49420,474 shs$550.54 million04/04/2025$19.19$18.57-3.23%$18.99$17.90459,514 shs$535.54 million04/03/2025$20.19$19.19-4.95%$19.58$18.75289,670 shs$537.45 million04/02/2025$19.78$20.19+2.07%$20.39$19.36267,562 shs$565.46 million04/01/2025$20.02$19.78-1.20%$20.22$19.34244,269 shs$553.98 million03/31/2025$19.94$20.02+0.40%$20.30$19.22324,676 shs$560.70 million Related Companies Progyny Stock Price Chart Addus HomeCare Stock Price Chart Ardent Health Partners Stock Price Chart agilon health Stock Price Chart National HealthCare Stock Price Chart PACS Group Stock Price Chart AdaptHealth Stock Price Chart Grail Stock Price Chart Teladoc Health Stock Price Chart Viridian Therapeutics Stock Price Chart Receive CSTL Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Castle Biosciences and its competitors with MarketBeat's FREE daily newsletter. 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