stockNASDAQ: PTGX • 28 Days Updates
Protagonist Therapeutics Inc. (PTGX)
Showing Closing Date Range from Sep 11 to Oct 9, 2026.
Investor Relations:protagonist-inc.com
Price & Performance Trajectory
Protagonist Therapeutics Inc.NASDAQ: PTGX
Latest Close
$143.73
28 Days Updates Trajectory
Showing Closing Date Range from Sep 11 to Oct 9, 2026.Loading trajectory chart...
Click metric scorecards below to toggle price, return %, range & volume curvesPTGX session performance
✓ Latest Close USD
$143.73
Latest session close
$-4.45vs period start
Period Return % % GAIN
-3%
Net period trajectory
Cumulative ReturnNormalized
High / Low Range SPREAD
$150.48 / $134.1
Period range envelope
$16.38channel spread
Total Volume SHARES
14.72M
Period turnover
Avg: 817.8K/dLiquidity
Historical Session Ledger
Daily open, high, low, and close prices with volume and period returns.
Historical Quotes & Breakdown(18 dates)
| Date | Close (USD) | Return % | High | Low | Volume |
|---|---|---|---|---|---|
| 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 |
| Sep 22, 2026 | $145.07 | +0.06% | $147.71 | $144.50 | 806.2K |
| Sep 21, 2026 | $144.98 | +1.38% | $145.37 | $141.09 | 822.2K |
| Sep 18, 2026 | $143.00 | -0.49% | $144.58 | $140.44 | 1.84M |
| Sep 17, 2026 | $143.70 | +0.60% | $146.50 | $142.31 | 558.9K |
| Sep 16, 2026 | $142.84 | -0.39% | $146.19 | $140.88 | 507.0K |
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