Protagonist Therapeutics (PTGX) Stock Chart & Stock Price History $54.83 -0.40 (-0.72%) As of 01:15 PM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Protagonist Therapeutics Stock Price Performance The Protagonist Therapeutics (PTGX) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 48.71%, with a year-to-date return of 41.58%. In the past month, the stock has decreased 3.05%, reflecting recent market activity. As of the latest close, Protagonist Therapeutics traded at $55.23 with a market cap of $3.42 billion and volume of 796,417 shares. Five years ago, the stock traded at $15.59, representing a 250.55% increase over that period. At the time, it had a market cap of $465.35 million and a volume of 187,400 shares. 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 5 Day Performance+3.45%1 Month Performance-3.05%3 Month Performance+16.40%Year-To-Date Performance+41.58%1 Year Performance+48.71%5 Year Performance+250.55% PTGX Stock Chart for Tuesday, July, 15, 2025 PTGX Chart by TradingView Protagonist 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 Capitalization07/14/2025$53.00$55.23+4.21%$55.41$53.13796,417 shs$3.42 billion07/11/2025$52.83$53.00+0.32%$53.77$52.02752,675 shs$3.28 billion07/10/2025$52.29$52.83+1.03%$52.87$51.28654,941 shs$3.27 billion07/09/2025$49.70$52.29+5.21%$52.35$49.88665,112 shs$3.24 billion07/08/2025$49.87$49.70-0.34%$50.42$49.38591,635 shs$3.08 billion07/07/2025$51.20$49.87-2.60%$51.51$49.51771,742 shs$3.09 billion07/04/2025$51.20$51.20$51.38$49.91339,485 shs$3.17 billion07/03/2025$50.69$51.20+1.01%$51.38$49.91339,485 shs$3.17 billion07/02/2025$50.21$50.69+0.96%$52.02$49.861.21 million shs$3.14 billion07/01/2025$55.27$50.21-9.16%$55.68$49.921.51 million shs$3.11 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. 06/30/2025$55.69$55.27-0.75%$57.24$55.26912,326 shs$3.43 billion06/27/2025$55.22$55.69+0.85%$55.90$54.711.55 million shs$3.45 billion06/26/2025$54.44$55.22+1.43%$55.33$54.00824,720 shs$3.42 billion06/25/2025$53.68$54.44+1.42%$54.96$53.01883,147 shs$3.37 billion06/24/2025$53.36$53.68+0.60%$54.54$52.16613,444 shs$3.33 billion06/23/2025$53.34$53.36+0.04%$53.52$52.27549,742 shs$3.31 billion06/20/2025$53.92$53.34-1.08%$54.97$52.792.28 million shs$3.31 billion06/19/2025$53.92$53.92$55.11$53.53918,437 shs$3.34 billion06/18/2025$55.21$53.92-2.34%$55.11$53.53918,437 shs$3.34 billion06/17/2025$54.66$55.21+1.01%$55.36$54.151.27 million shs$3.42 billion06/16/2025$56.37$54.66-3.03%$57.03$54.30802,396 shs$3.39 billion Related Companies Dr. Reddy's Laboratories Stock Price Chart Moderna Stock Price Chart Regencell Bioscience Stock Price Chart Viatris Stock Price Chart QIAGEN Stock Price Chart Ascendis Pharma A/S Stock Price Chart BridgeBio Pharma Stock Price Chart Blueprint Medicines Stock Price Chart Verona Pharma PLC American Depositary Share Stock Price Chart Roivant Sciences 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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