stockNASDAQ: PTGX • 12 Months Updates
Protagonist Therapeutics Inc. (PTGX) 12 Months
Showing Closing Date Range from Oct 16, 2025 to Oct 16, 2026.
Investor Relations:protagonist-inc.com
Price & Performance Trajectory
Protagonist Therapeutics Inc.NASDAQ: PTGX
Latest Close
$128.75
12 Months Updates Trajectory
Showing Closing Date Range from Oct 16, 2025 to Oct 16, 2026.Loading trajectory chart...
Click metric scorecards below to toggle price, return %, range & volume curvesPTGX session performance
✓ Latest Close USD
$128.75
Latest session close
+$53.02vs period start
Period Return % % GAIN
+70.01%
Net period trajectory
Cumulative ReturnNormalized
High / Low Range SPREAD
$160.81 / $73.08
Period range envelope
$87.73channel spread
Total Volume SHARES
191.18M
Period turnover
Avg: 767.8K/dLiquidity
Historical Session Ledger
Daily open, high, low, and close prices with volume and period returns.
Historical Quotes & Breakdown(249 dates)
| Date | Close (USD) | Return % | High | Low | Volume |
|---|---|---|---|---|---|
| Oct 16, 2026 | $128.75 | -5.71% | $136.56 | $126.39 | 886.7K |
| Oct 15, 2026 | $136.55 | +0.20% | $139.08 | $136.03 | 697.4K |
| Oct 14, 2026 | $136.28 | -1.60% | $141.13 | $135.62 | 679.0K |
| Oct 13, 2026 | $138.49 | -4.41% | $146.00 | $137.88 | 1.03M |
| Oct 12, 2026 | $144.88 | +0.80% | $152.19 | $143.69 | 891.6K |
| Oct 09, 2026 | $143.73 | +2.73% | $146.30 | $138.95 | 760.5K |
| Oct 08, 2026 | $139.91 | -0.72% | $142.18 | $137.99 | 999.8K |
| Oct 07, 2026 | $140.92 | +1.61% | $144.10 | $137.25 | 927.3K |
| Oct 06, 2026 | $138.69 | -1.38% | $141.00 | $136.09 | 632.8K |
| Oct 05, 2026 | $140.63 | +0.41% | $142.51 | $138.08 | 1.27M |
| Oct 02, 2026 | $140.06 | +0.63% | $141.28 | $138.37 | 644.9K |
| Sep 28, 2026 | $142.44 | +0.41% | $143.69 | $140.24 | 925.5K |
| Sep 25, 2026 | $141.86 | +3.29% | $143.45 | $138.23 | 809.2K |
| Sep 24, 2026 | $137.34 | -0.98% | $140.80 | $134.10 | 989.2K |
| Sep 23, 2026 | $138.70 | -4.39% | $145.28 | $137.88 | 513.2K |
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