Y-mAbs Therapeutics (YMAB) Stock Chart & Stock Price History $8.52 +0.01 (+0.06%) As of 03:15 PM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider 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 30.35%, with a year-to-date return of 8.88%. In the past month, the stock has increased 97.80%, reflecting recent market activity. As of the latest close, Y-mAbs Therapeutics traded at $8.52 with a market cap of $387.15 million and volume of 1.10 million shares. Five years ago, the stock traded at $40.77, representing a 79.09% decrease over that period. At the time, it had a market cap of $1.56 billion and a volume of 97,903 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+0.18%1 Month Performance+97.80%3 Month Performance+107.93%Year-To-Date Performance+8.88%1 Year Performance-30.35%5 Year Performance-79.09% YMAB Stock Chart for Monday, August, 18, 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 Capitalization08/15/2025$8.51$8.52+0.12%$8.53$8.511.10 million shs$387.15 million08/14/2025$8.51$8.51$8.53$8.511.31 million shs$386.69 million08/13/2025$8.51$8.51$8.52$8.51653,013 shs$386.68 million08/12/2025$8.52$8.51-0.12%$8.53$8.511.13 million shs$385.33 million08/11/2025$8.51$8.52+0.12%$8.53$8.51998,991 shs$385.79 million08/08/2025$8.52$8.51-0.12%$8.53$8.502.82 million shs$385.33 million08/07/2025$8.52$8.52$8.54$8.511.24 million shs$385.82 million08/06/2025$8.52$8.52$8.52$8.502.55 million shs$385.79 million08/05/2025$4.19$8.52+103.34%$8.54$8.5020.02 million shs$385.79 million08/04/2025$4.53$4.19-7.51%$4.54$4.16769,202 shs$189.74 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. 08/01/2025$4.47$4.53+1.34%$4.59$4.29138,793 shs$205.12 million07/31/2025$4.79$4.47-6.68%$4.83$4.43156,883 shs$202.40 million07/30/2025$4.97$4.79-3.62%$5.18$4.77250,793 shs$216.89 million07/29/2025$4.88$4.97+1.84%$5.00$4.64232,178 shs$225.04 million07/28/2025$4.77$4.88+2.31%$4.96$4.70157,349 shs$220.99 million07/25/2025$4.84$4.77-1.45%$4.90$4.68182,616 shs$216.01 million07/24/2025$4.81$4.84+0.62%$5.01$4.64296,580 shs$219.16 million07/23/2025$4.41$4.81+9.07%$4.85$4.42301,212 shs$217.80 million07/22/2025$4.33$4.41+1.85%$4.45$4.29124,304 shs$199.70 million07/21/2025$4.31$4.33+0.46%$4.50$4.30127,764 shs$196.06 million07/18/2025$4.32$4.31-0.23%$4.42$4.23157,975 shs$195.16 million07/17/2025$4.35$4.32-0.69%$4.42$4.30111,782 shs$195.61 million Related Companies TVTX Stock Chart BHVN Stock Chart AUPH Stock Chart SDGR Stock Chart EVO Stock Chart JANX Stock Chart ETNB Stock Chart EWTX Stock Chart WVE Stock Chart ABCL 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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