Castle Biosciences (CSTL) Stock Chart & Stock Price History $19.94 -0.16 (-0.80%) Closing price 04:00 PM EasternExtended Trading$19.93 -0.01 (-0.05%) As of 04:05 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-2.83%1 Month Performance-8.03%3 Month Performance-25.68%6 Month Performance-28.43%Year-To-Date Performance-25.18%1 Year Performance-9.98% 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 Friday, March, 28, 2025 CSTL Chart by TradingViewRemove Ads 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 Capitalization03/28/2025$20.10$19.94-0.80%$20.09$19.58203,414 shs$558.46 million03/27/2025$20.08$20.10+0.10%$20.39$19.99178,034 shs$562.94 million03/26/2025$20.84$20.08-3.65%$20.97$19.96181,588 shs$562.38 million03/25/2025$20.98$20.84-0.67%$21.03$20.50175,028 shs$583.67 million03/24/2025$20.52$20.98+2.24%$21.14$20.65155,679 shs$587.59 million03/21/2025$20.07$20.52+2.24%$21.01$19.76605,750 shs$574.70 million03/20/2025$20.54$20.07-2.29%$20.52$20.05355,777 shs$562.10 million03/19/2025$20.49$20.54+0.24%$20.71$19.95235,742 shs$575.26 million03/18/2025$20.03$20.49+2.30%$20.58$19.59470,883 shs$573.86 million03/17/2025$19.29$20.03+3.84%$20.28$19.12629,773 shs$560.98 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. 03/14/2025$18.76$19.29+2.83%$19.55$18.88705,308 shs$540.26 million03/13/2025$19.63$18.76-4.43%$19.91$18.74408,046 shs$525.41 million03/12/2025$19.54$19.63+0.46%$20.49$19.51609,076 shs$549.78 million03/11/2025$18.93$19.54+3.22%$19.90$18.80735,986 shs$547.26 million03/10/2025$20.21$18.93-6.33%$20.01$18.70761,650 shs$530.17 million03/07/2025$20.59$20.21-1.85%$20.92$19.56412,844 shs$566.02 million03/06/2025$21.32$20.59-3.42%$21.57$20.54489,202 shs$576.66 million03/05/2025$22.23$21.32-4.09%$22.36$21.05342,448 shs$597.11 million03/04/2025$21.27$22.23+4.51%$22.58$20.33689,427 shs$622.60 million03/03/2025$21.68$21.27-1.89%$22.39$21.17553,802 shs$595.71 million02/28/2025$25.22$21.68-14.04%$26.00$21.19938,067 shs$607.19 million02/27/2025$25.92$25.22-2.70%$26.55$25.19586,020 shs$706.34 million Related Companies Ardent Health Partners Stock Price Chart PACS Group Stock Price Chart Progyny Stock Price Chart agilon health Stock Price Chart Addus HomeCare Stock Price Chart Teladoc Health Stock Price Chart National HealthCare Stock Price Chart AdaptHealth Stock Price Chart Viridian Therapeutics Stock Price Chart CareDx 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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