Protagonist Therapeutics (PTGX) Stock Chart & Stock Price History $45.51 +0.52 (+1.16%) Closing price 05/2/2025 04:00 PM EasternExtended Trading$45.51 0.00 (0.00%) As of 05/2/2025 05:55 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 Protagonist Therapeutics Stock Price Performance 5 Day Performance-0.24%1 Month Performance+2.41%3 Month Performance+21.10%6 Month Performance-2.67%Year-To-Date Performance+17.90%1 Year Performance+74.43% 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 Sunday, May, 4, 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 Capitalization05/02/2025$44.99$45.51+1.16%$46.12$44.82644,080 shs$2.79 billion05/01/2025$45.82$44.99-1.81%$45.63$43.49739,458 shs$2.76 billion04/30/2025$45.62$45.82+0.44%$46.02$44.22860,806 shs$2.81 billion04/29/2025$44.39$45.62+2.77%$46.00$43.691.25 million shs$2.80 billion04/28/2025$44.49$44.39-0.22%$45.50$44.08592,255 shs$2.72 billion04/25/2025$44.85$44.49-0.80%$44.84$43.62634,255 shs$2.73 billion04/24/2025$46.16$44.85-2.84%$46.06$44.27859,223 shs$2.75 billion04/23/2025$45.85$46.16+0.68%$47.35$45.731.42 million shs$2.83 billion04/22/2025$45.80$45.85+0.11%$46.41$45.42775,157 shs$2.81 billion04/21/2025$46.28$45.80-1.04%$46.97$45.071.19 million shs$2.81 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. 04/18/2025$46.28$46.28$46.87$45.80517,389 shs$2.84 billion04/17/2025$45.80$46.28+1.05%$46.87$45.80517,389 shs$2.84 billion04/16/2025$46.95$45.80-2.45%$47.14$45.001.33 million shs$2.81 billion04/15/2025$45.03$46.95+4.26%$48.32$44.972.15 million shs$2.88 billion04/14/2025$42.62$45.03+5.65%$45.51$42.531.16 million shs$2.76 billion04/11/2025$40.89$42.62+4.23%$42.63$41.101.16 million shs$2.62 billion04/10/2025$42.57$40.89-3.95%$43.00$39.901.64 million shs$2.51 billion04/09/2025$41.67$42.57+2.16%$43.91$39.601.87 million shs$2.61 billion04/09/2025$41.67$42.57+2.16%$43.91$39.601.87 million shs$2.61 billion04/08/2025$43.21$41.67-3.56%$45.88$40.882.07 million shs$2.56 billion04/08/2025$43.21$41.67-3.56%$45.88$40.882.07 million shs$2.56 billion04/07/2025$44.44$43.21-2.77%$45.32$42.441.59 million shs$2.65 billion04/04/2025$46.50$44.44-4.43%$46.45$43.931.75 million shs$2.73 billion04/03/2025$48.20$46.50-3.53%$47.25$45.791.48 million shs$2.85 billion Related Companies Ascendis Pharma A/S Stock Price Chart Moderna Stock Price Chart Viatris Stock Price Chart Qiagen Stock Price Chart Roivant Sciences Stock Price Chart Lantheus Stock Price Chart Revolution Medicines Stock Price Chart BridgeBio Pharma Stock Price Chart Legend Biotech Stock Price Chart TG Therapeutics 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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