Summit Therapeutics (SMMT) Stock Chart & Stock Price History $26.54 +0.20 (+0.76%) Closing price 07/22/2025 04:00 PM EasternExtended Trading$26.58 +0.04 (+0.15%) As of 04:00 AM 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 ForecastsChartCompetitorsEarningsFDA EventsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Summit Therapeutics Stock Price Performance The Summit Therapeutics (SMMT) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 163.03%, with a year-to-date return of 48.77%. In the past month, the stock has increased 30.16%, reflecting recent market activity. As of the latest close, Summit Therapeutics traded at $26.54 with a market cap of $19.71 billion and volume of 1.64 million shares. Five years ago, the stock traded at $3.48, representing a 662.64% increase over that period. At the time, it had a market cap of $112.67 million and a volume of 53,500 shares. Receive SMMT Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Summit Therapeutics and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance+1.30%1 Month Performance+30.16%3 Month Performance-20.23%Year-To-Date Performance+48.77%1 Year Performance+163.03%5 Year Performance+662.64% SMMT Stock Chart for Wednesday, July, 23, 2025 SMMT Chart by TradingView Summit 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 Capitalization07/22/2025$26.34$26.54+0.76%$26.91$25.811.64 million shs$19.71 billion07/21/2025$26.20$26.34+0.53%$27.25$26.231.92 million shs$19.56 billion07/18/2025$27.63$26.20-5.18%$28.13$26.053.00 million shs$19.46 billion07/17/2025$28.27$27.63-2.26%$28.61$27.243.08 million shs$20.52 billion07/16/2025$24.36$28.27+16.05%$28.62$25.006.14 million shs$21.00 billion07/15/2025$25.40$24.36-4.09%$25.55$24.091.80 million shs$18.09 billion07/14/2025$25.00$25.40+1.60%$25.61$24.632.97 million shs$18.86 billion07/11/2025$25.88$25.00-3.40%$25.72$24.762.23 million shs$18.57 billion07/10/2025$24.74$25.88+4.61%$26.33$24.272.20 million shs$19.22 billion07/09/2025$22.99$24.74+7.61%$25.05$23.235.05 million shs$18.37 billion Get the Latest News and Ratings for SMMT and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Summit Therapeutics and its competitors with MarketBeat's FREE daily newsletter. 07/08/2025$22.61$22.99+1.68%$23.02$22.162.99 million shs$17.07 billion07/07/2025$24.35$22.61-7.13%$23.69$22.404.35 million shs$16.79 billion07/04/2025$24.35$24.35$25.94$20.4912.73 million shs$18.08 billion07/03/2025$22.62$24.35+7.63%$25.94$20.4912.73 million shs$18.08 billion07/02/2025$21.20$22.62+6.70%$22.84$21.173.81 million shs$16.80 billion07/01/2025$21.28$21.20-0.38%$21.76$20.622.07 million shs$15.74 billion06/30/2025$20.60$21.28+3.30%$21.31$20.332.14 million shs$15.80 billion06/27/2025$21.32$20.60-3.38%$21.35$20.2714.07 million shs$15.30 billion06/26/2025$21.27$21.32+0.24%$21.65$21.011.40 million shs$15.83 billion06/25/2025$20.92$21.27+1.67%$21.46$20.342.07 million shs$15.80 billion06/24/2025$20.39$20.92+2.60%$21.82$20.433.57 million shs$15.54 billion06/23/2025$20.56$20.39-0.83%$20.60$19.482.76 million shs$15.14 billion Related Companies Merck & Co., Inc. Stock Chart GSK Stock Chart Takeda Pharmaceutical Stock Chart argenex Stock Chart BeOne Medicines Stock Chart BioNTech Stock Chart Insmed Stock Chart Teva Pharmaceutical Industries Stock Chart Genmab A/S Stock Chart Dr. Reddy's Laboratories Stock Chart Receive SMMT Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Summit Therapeutics and its competitors with MarketBeat's FREE daily newsletter. This page (NASDAQ:SMMT) was last updated on 7/23/2025 by MarketBeat.com Staff From Our PartnersINVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting OffRight now, we’re witnessing a monumental shift in the world.Traders Agency | SponsoredMarket Panic: Trump Just Dropped a Bomb on Your Stockstock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tarif...American Alternative | SponsoredGoogle did what!?!?A new technology has sparked a modern-day gold rush in Silicon Valley. 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