Protagonist Therapeutics Inc. (PTGX)
Showing Closing Date Range from May 3 to Oct 30, 2026 compared to Nov 3, 2025 to May 2, 2026.
Compare Last 6 Months with Previous Period
Investor Relations:protagonist-inc.com
Current Period Close
$144.85
May 03, 2026 - Oct 30, 2026
Previous Period Close
$98.37
Nov 03, 2025 - May 02, 2026
Net Comparison Delta
+$46.48 (+47.25%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(123 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Oct 30, 2026 | $144.85 | Apr 30, 2026 | $98.97 | +46.36% |
| Oct 29, 2026 | $144.34 | Apr 29, 2026 | $98.52 | +46.51% |
| Oct 28, 2026 | $142.14 | Apr 28, 2026 | $101.21 | +40.44% |
| Oct 27, 2026 | $141.12 | Apr 27, 2026 | $98.51 | +43.25% |
| Oct 26, 2026 | $140.32 | Apr 24, 2026 | $100.00 | +40.32% |
| Oct 23, 2026 | $138.43 | Apr 23, 2026 | $102.62 | +34.90% |
| Oct 22, 2026 | $139.53 | Apr 22, 2026 | $105.55 | +32.19% |
| Oct 21, 2026 | $138.08 | Apr 21, 2026 | $105.89 | +30.40% |
| Oct 20, 2026 | $137.99 | Apr 20, 2026 | $105.47 | +30.83% |
| Oct 19, 2026 | $134.44 | Apr 17, 2026 | $105.98 | +26.85% |
| Oct 16, 2026 | $128.75 | Apr 16, 2026 | $103.73 | +24.12% |
| Oct 15, 2026 | $136.55 | Apr 15, 2026 | $105.44 | +29.50% |
| Oct 14, 2026 | $136.28 | Apr 14, 2026 | $104.72 | +30.14% |
| Oct 13, 2026 | $138.49 | Apr 13, 2026 | $97.57 | +41.94% |
| Oct 12, 2026 | $144.88 | Apr 10, 2026 | $98.82 | +46.61% |
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