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PTGX — Protagonist Therapeutics, Inc
NasdaqProtagonist Therapeutics, Inc
$140.92
+2.23(+1.61%)
- O
- 137.34
- H
- 144.10
- L
- 137.25
- V
- 927.26K
⏱️ End-of-day dataAs of Oct 7, 2026
Latest Close$140.92
Period Return+216.75%
Period High$160.81
Period Low$41.29
Avg Daily Volume834.0K
Total Trading Days365
PTGX — Historical OHLCV Price & Volume Table
Apr 25, 2025 — Oct 7, 2026| Date▼ | Open⇅ | High⇅ | Low⇅ | Close⇅ | Change ($)⇅ | Change (%)⇅ | Volume⇅ | VWAP⇅ | Day Range (L - H) |
|---|---|---|---|---|---|---|---|---|---|
| Oct 7, 2026 | $137.34 | $144.10 | $137.25 | $140.92 | +$2.23 | +1.61% | 927,257 | $141.82 | $137.25 $144.10 |
| Oct 6, 2026 | $140.34 | $141.00 | $136.09 | $138.69 | $-1.94 | -1.38% | 635,716 | $138.41 | $136.09 $141.00 |
| Oct 5, 2026 | $139.96 | $142.51 | $138.08 | $140.63 | +$0.57 | +0.41% | 1,273,823 | $140.55 | $138.08 $142.51 |
| Oct 2, 2026 | $140.99 | $141.71 | $138.37 | $140.06 | +$0.87 | +0.63% | 760,304 | $139.77 | $138.37 $141.71 |
| Oct 1, 2026 | $139.23 | $143.68 | $138.37 | $139.19 | $-1.70 | -1.21% | 886,246 | $140.77 | $138.37 $143.68 |
| Sep 30, 2026 | $141.60 | $143.74 | $140.44 | $140.89 | $-0.08 | -0.06% | 787,658 | $141.64 | $140.44 $143.74 |
| Sep 29, 2026 | $143.45 | $144.09 | $138.88 | $140.97 | $-1.47 | -1.03% | 508,014 | $140.63 | $138.88 $144.09 |
| Sep 28, 2026 | $142.21 | $143.69 | $140.24 | $142.44 | +$0.58 | +0.41% | 925,462 | $142.43 | $140.24 $143.69 |
| Sep 25, 2026 | $141.81 | $143.45 | $138.23 | $141.86 | +$4.52 | +3.29% | 809,293 | $141.65 | $138.23 $143.45 |
| Sep 24, 2026 | $138.76 | $140.80 | $134.10 | $137.34 | $-1.36 | -0.98% | 989,225 | $136.78 | $134.10 $140.80 |
| Sep 23, 2026 | $144.27 | $145.28 | $137.88 | $138.70 | $-6.37 | -4.39% | 513,226 | $139.31 | $137.88 $145.28 |
| Sep 22, 2026 | $144.64 | $147.71 | $144.50 | $145.07 | +$0.09 | +0.06% | 806,176 | $145.39 | $144.50 $147.71 |
| Sep 21, 2026 | $143.22 | $145.37 | $141.09 | $144.98 | +$1.98 | +1.38% | 822,199 | $144.79 | $141.09 $145.37 |
| Sep 18, 2026 | $143.09 | $144.58 | $140.44 | $143.00 | $-0.70 | -0.49% | 1,837,204 | $143.07 | $140.44 $144.58 |
| Sep 17, 2026 | $144.39 | $146.50 | $142.31 | $143.70 | +$0.86 | +0.60% | 558,901 | $143.95 | $142.31 $146.50 |
| Sep 16, 2026 | $144.19 | $146.19 | $140.88 | $142.84 | $-0.56 | -0.39% | 507,312 | $143.00 | $140.88 $146.19 |
| Sep 15, 2026 | $147.48 | $147.99 | $142.00 | $143.40 | $-4.38 | -2.96% | 604,908 | $143.52 | $142.00 $147.99 |
| Sep 14, 2026 | $150.23 | $151.24 | $146.83 | $147.78 | $-0.40 | -0.27% | 598,117 | $147.76 | $146.83 $151.24 |
| Sep 11, 2026 | $147.18 | $150.48 | $145.82 | $148.18 | +$3.02 | +2.08% | 478,038 | $147.72 | $145.82 $150.48 |
| Sep 10, 2026 | $143.29 | $146.51 | $142.00 | $145.16 | +$0.07 | +0.05% | 543,130 | $144.98 | $142.00 $146.51 |
| Sep 9, 2026 | $146.05 | $151.19 | $144.46 | $145.09 | $-0.85 | -0.58% | 530,534 | $146.06 | $144.46 $151.19 |
| Sep 8, 2026 | $143.61 | $147.29 | $142.00 | $145.94 | +$0.22 | +0.15% | 700,126 | $145.93 | $142.00 $147.29 |
| Sep 4, 2026 | $146.47 | $147.99 | $144.01 | $145.72 | $-3.08 | -2.07% | 501,305 | $145.77 | $144.01 $147.99 |
| Sep 3, 2026 | $146.68 | $149.49 | $144.00 | $148.80 | +$2.72 | +1.86% | 354,191 | $148.20 | $144.00 $149.49 |
| Sep 2, 2026 | $148.00 | $149.42 | $144.61 | $146.08 | $-0.41 | -0.28% | 561,339 | $146.19 | $144.61 $149.42 |
| Sep 1, 2026 | $147.75 | $150.34 | $144.73 | $146.49 | $-1.26 | -0.85% | 534,145 | $146.42 | $144.73 $150.34 |
| Aug 31, 2026 | $143.26 | $149.30 | $141.95 | $147.75 | +$3.42 | +2.37% | 562,655 | $146.22 | $141.95 $149.30 |
| Aug 28, 2026 | $147.73 | $147.95 | $142.43 | $144.33 | $-5.17 | -3.46% | 501,248 | $144.34 | $142.43 $147.95 |
| Aug 27, 2026 | $150.35 | $151.68 | $147.11 | $149.50 | $-2.00 | -1.32% | 381,591 | $149.85 | $147.11 $151.68 |
| Aug 26, 2026 | $150.36 | $152.07 | $147.69 | $151.50 | +$0.91 | +0.60% | 335,463 | $150.63 | $147.69 $152.07 |