Y-mAbs Therapeutics (YMAB) Stock Chart & Stock Price History $4.13 +0.03 (+0.73%) Closing price 04:00 PM EasternExtended Trading$4.13 0.00 (0.00%) As of 06:13 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 ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Y-mAbs Therapeutics Stock Price Performance The Y-mAbs Therapeutics (YMAB) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 67.86%, with a year-to-date return of -47.25%. In the past month, the stock has decreased 3.05%, reflecting recent market activity. As of the latest close, Y-mAbs Therapeutics traded at $4.10 with a market cap of $185.66 million and volume of 191,700 shares. Five years ago, the stock traded at $37.73, representing a 89.05% decrease over that period. At the time, it had a market cap of $1.52 billion and a volume of 190,992 shares. Receive YMAB Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Y-mAbs Therapeutics and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance+0.73%1 Month Performance-3.05%3 Month Performance-27.80%Year-To-Date Performance-47.25%1 Year Performance-67.86%5 Year Performance-89.05% YMAB Stock Chart for Thursday, May, 22, 2025 YMAB Chart by TradingView Y-mAbs Therapeutics 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 Capitalization05/22/2025$4.10$4.13+0.73%$4.18$3.9994,643 shs$187.02 million05/21/2025$4.23$4.10-3.07%$4.23$4.07191,700 shs$185.66 million05/20/2025$4.17$4.23+1.44%$4.31$4.13112,150 shs$191.55 million05/19/2025$4.10$4.17+1.71%$4.27$4.03165,486 shs$188.83 million05/16/2025$3.86$4.10+6.22%$4.12$3.82227,355 shs$185.64 million05/15/2025$3.64$3.86+6.04%$3.88$3.55140,191 shs$174.77 million05/14/2025$4.16$3.64-12.50%$4.31$3.63238,734 shs$164.81 million05/13/2025$4.07$4.16+2.21%$5.04$4.06407,561 shs$188.35 million05/12/2025$3.89$4.07+4.63%$4.18$3.94142,828 shs$184.28 million05/09/2025$4.05$3.89-3.95%$4.26$3.87444,204 shs$176.13 million Get the Latest News and Ratings for YMAB and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Y-mAbs Therapeutics and its competitors with MarketBeat's FREE daily newsletter. 05/08/2025$3.88$4.05+4.38%$4.07$3.76109,422 shs$183.37 million05/07/2025$3.86$3.88+0.52%$4.03$3.83265,998 shs$175.68 million05/06/2025$4.25$3.86-9.18%$4.46$3.85332,467 shs$174.77 million05/05/2025$4.41$4.25-3.63%$4.60$4.24178,860 shs$192.43 million05/02/2025$4.11$4.41+7.30%$4.45$4.16163,173 shs$199.41 million05/01/2025$4.25$4.11-3.29%$4.29$4.02203,869 shs$185.85 million04/30/2025$4.20$4.25+1.19%$4.33$4.10169,597 shs$192.18 million04/29/2025$4.23$4.20-0.71%$4.34$4.10152,403 shs$189.92 million04/28/2025$4.10$4.23+3.17%$4.27$4.08120,647 shs$191.27 million04/25/2025$4.13$4.10-0.73%$4.12$3.94108,610 shs$185.39 million04/24/2025$4.12$4.13+0.24%$4.14$3.91216,544 shs$186.75 million04/23/2025$4.26$4.12-3.29%$4.40$4.11181,491 shs$186.30 million04/22/2025$4.82$4.26-11.62%$4.61$3.84563,438 shs$192.63 million04/21/2025$4.69$4.82+2.77%$4.93$4.59143,300 shs$217.95 million Related Companies AKBA Stock Chart NRIX Stock Chart AVXL Stock Chart IMNM Stock Chart RCKT Stock Chart AVBP Stock Chart DAWN Stock Chart TRVI Stock Chart IMTX Stock Chart VIR Stock Chart Receive YMAB Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Y-mAbs Therapeutics and its competitors with MarketBeat's FREE daily newsletter. 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