Protagonist Therapeutics Inc. (PTGX)
Showing Closing Date Range from Oct 16 to Oct 23, 2026 compared to Oct 8 to Oct 15, 2026.
Compare Last 7 Days with Previous Period
Investor Relations:protagonist-inc.com
Current Period Close
$138.43
Oct 16, 2026 - Oct 23, 2026
Previous Period Close
$136.55
Oct 08, 2026 - Oct 15, 2026
Net Comparison Delta
+$1.88 (+1.38%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(6 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Oct 23, 2026 | $138.43 | Oct 15, 2026 | $136.55 | +1.38% |
| Oct 22, 2026 | $139.53 | Oct 14, 2026 | $136.28 | +2.38% |
| Oct 21, 2026 | $138.08 | Oct 13, 2026 | $138.49 | -0.30% |
| Oct 20, 2026 | $137.99 | Oct 12, 2026 | $144.88 | -4.76% |
| Oct 19, 2026 | $134.44 | Oct 09, 2026 | $143.73 | -6.46% |
| Oct 16, 2026 | $128.75 | Oct 08, 2026 | $139.91 | -7.98% |