Protagonist Therapeutics (PTGX) Stock Chart & Stock Price History $38.75 +0.26 (+0.68%) Closing price 02/21/2025 04:00 PM EasternExtended Trading$39.89 +1.14 (+2.94%) As of 02/21/2025 06:52 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 InterestTrends Protagonist Therapeutics Stock Price Performance 5 Day Performance+0.21%1 Month Performance+5.07%3 Month Performance-16.59%6 Month Performance-6.49%Year-To-Date Performance+0.39%1 Year Performance+39.94% Receive PTGX Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Protagonist Therapeutics and its competitors with MarketBeat's FREE daily newsletter. Email Address PTGX Stock Chart for Saturday, February, 22, 2025 PTGX Chart by TradingView Protagonist Therapeutics 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 Capitalization02/21/2025$38.49$38.75+0.68%$39.90$38.44659,597 shs$2.31 billion02/20/2025$38.53$38.49-0.10%$39.07$37.83618,655 shs$2.29 billion02/19/2025$37.75$38.53+2.07%$38.65$37.50456,605 shs$2.30 billion02/18/2025$38.67$37.75-2.38%$39.10$37.63495,780 shs$2.25 billion02/17/2025$38.67$38.67$39.37$38.36368,343 shs$2.30 billion02/14/2025$38.68$38.67-0.03%$39.37$38.36368,343 shs$2.30 billion02/13/2025$37.42$38.68+3.37%$38.72$37.38371,722 shs$2.31 billion02/12/2025$36.99$37.42+1.16%$37.54$36.34421,704 shs$2.23 billion02/11/2025$37.99$36.99-2.63%$38.01$36.70908,024 shs$2.20 billion02/10/2025$38.88$37.99-2.29%$39.52$37.74704,259 shs$2.26 billion Get the Latest News and Ratings for PTGX and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Protagonist Therapeutics and its competitors with MarketBeat's FREE daily newsletter. 02/07/2025$37.75$38.88+2.99%$39.66$37.81756,835 shs$2.32 billion02/06/2025$38.52$37.75-2.00%$39.31$37.70528,156 shs$2.25 billion02/05/2025$37.58$38.52+2.50%$38.62$37.72552,564 shs$2.30 billion02/04/2025$37.20$37.58+1.02%$38.32$37.06466,694 shs$2.24 billion02/03/2025$37.80$37.20-1.59%$37.50$36.65491,854 shs$2.22 billion01/31/2025$39.12$37.80-3.37%$39.64$37.58624,286 shs$2.25 billion01/30/2025$38.21$39.12+2.38%$39.45$37.98333,510 shs$2.33 billion01/29/2025$37.99$38.21+0.58%$38.85$37.67327,388 shs$2.28 billion01/28/2025$38.36$37.99-0.96%$39.23$37.91466,012 shs$2.26 billion01/27/2025$37.69$38.36+1.78%$39.89$37.51587,806 shs$2.29 billion01/24/2025$37.80$37.69-0.29%$38.70$37.00431,218 shs$2.25 billion01/23/2025$36.88$37.80+2.49%$37.94$36.72525,034 shs$2.25 billion01/22/2025$38.10$36.88-3.20%$38.47$36.56610,873 shs$2.20 billion01/21/2025$36.82$38.10+3.48%$38.50$37.18461,102 shs$2.27 billion Related Companies Qiagen Stock Price Chart Ascendis Pharma A/S Stock Price Chart Roivant Sciences Stock Price Chart Revolution Medicines Stock Price Chart Legend Biotech Stock Price Chart BridgeBio Pharma Stock Price Chart Axsome Therapeutics Stock Price Chart Blueprint Medicines Stock Price Chart Telix Pharmaceuticals Limited American Depositary Shares Stock Price Chart Elanco Animal Health Stock Price Chart Receive PTGX Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Protagonist Therapeutics and its competitors with MarketBeat's FREE daily newsletter. 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