Castle Biosciences (CSTL) Stock Chart & Stock Price History $18.04 -0.13 (-0.72%) Closing price 06/10/2025 04:00 PM EasternExtended Trading$18.06 +0.02 (+0.08%) As of 06/10/2025 04:04 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 The Castle Biosciences (CSTL) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 16.29%, with a year-to-date return of -32.31%. In the past month, the stock has increased 7.44%, reflecting recent market activity. As of the latest close, Castle Biosciences traded at $18.04 with a market cap of $520.85 million and volume of 323,802 shares. Five years ago, the stock traded at $38.55, representing a 53.20% decrease over that period. At the time, it had a market cap of $662.97 million and a volume of 151,000 shares. 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 5 Day Performance+2.50%1 Month Performance+7.44%3 Month Performance-7.68%Year-To-Date Performance-32.31%1 Year Performance-16.29%5 Year Performance-53.20% CSTL Stock Chart for Wednesday, June, 11, 2025 CSTL Chart by TradingView Castle Biosciences 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 Capitalization06/10/2025$18.17$18.04-0.72%$18.46$17.95323,802 shs$520.85 million06/09/2025$17.60$18.17+3.24%$18.46$17.43469,448 shs$524.60 million06/06/2025$17.02$17.60+3.41%$17.67$17.23560,182 shs$508.15 million06/05/2025$17.02$17.02$17.19$16.61343,692 shs$491.40 million06/04/2025$16.71$17.02+1.86%$17.06$16.59279,926 shs$491.40 million06/03/2025$16.27$16.71+2.70%$16.91$15.94391,255 shs$482.45 million06/02/2025$15.97$16.27+1.88%$16.42$15.57487,737 shs$469.75 million05/30/2025$15.95$15.97+0.13%$16.06$15.62441,001 shs$461.09 million05/29/2025$16.23$15.95-1.73%$16.43$15.76329,133 shs$460.51 million05/28/2025$15.80$16.23+2.72%$16.26$15.45539,749 shs$468.59 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. 05/27/2025$16.10$15.80-1.86%$16.39$15.70530,958 shs$456.18 million05/26/2025$16.10$16.10$16.15$15.66287,423 shs$464.84 million05/23/2025$15.89$16.10+1.32%$16.15$15.66287,423 shs$464.84 million05/22/2025$16.02$15.89-0.81%$16.06$15.75292,532 shs$458.78 million05/21/2025$16.50$16.02-2.91%$16.48$15.89318,503 shs$462.53 million05/20/2025$16.40$16.50+0.61%$16.56$16.22244,623 shs$476.39 million05/19/2025$16.75$16.40-2.09%$16.66$16.30334,055 shs$473.50 million05/16/2025$16.48$16.75+1.64%$16.93$16.42393,888 shs$483.61 million05/15/2025$16.32$16.48+0.98%$16.79$15.84409,214 shs$475.81 million05/14/2025$17.03$16.32-4.17%$17.09$16.31439,544 shs$471.19 million05/13/2025$17.04$17.03-0.06%$17.32$16.55498,873 shs$491.69 million05/12/2025$16.79$17.04+1.49%$17.49$16.77370,825 shs$491.98 million Related Companies Progyny Stock Price Chart National HealthCare Stock Price Chart PACS Group Stock Price Chart Grail Stock Price Chart AdaptHealth Stock Price Chart Teladoc Health Stock Price Chart Viridian Therapeutics Stock Price Chart Aveanna Healthcare Stock Price Chart The Pennant Group 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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