Options Chain for PROTHENA CORP PLC SHS (PRTA) - $8.89 as of 2/5/2026 8:03:08 AM EST
Calls
| Strike | Bid | Ask | Premium | Last Price | Change | %Chg | Premium to Strike Price Ratio | Volume | Open Interest | IV | Delta | Gamma | Theta | Last Trade | Last Updated |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2.50 | 4.00 | 8.70 | 6.35 | % | 2.54 | 0 | 0 | 0.00 | 1.00 | 0.00 | 0.00 | 2/4/2026 3:59:56 PM EST | |||
| 5.00 | 1.50 | 6.30 | 3.90 | 5.10 | 0.00 | 0.00% | 0.78 | 0 | 8 | 4.81 | 1.00 | 0.00 | 0.00 | 1/22/2026 | 2/4/2026 3:59:56 PM EST |
| 6.00 | 0.50 | 4.90 | 2.70 | 4.50 | 0.00 | 0.00% | 0.45 | 0 | 7 | 3.34 | 0.98 | 0.02 | 0.00 | 10/14/2025 | 2/4/2026 3:59:56 PM EST |
| 7.50 | 1.10 | 2.25 | 1.68 | 3.28 | 0.00 | 0.00% | 0.22 | 0 | 189 | 1.25 | 0.85 | 0.14 | -0.01 | 12/9/2025 | 2/4/2026 3:59:56 PM EST |
| 9.00 | 0.00 | 2.25 | 1.13 | 0.69 | 0.00 | 0.00% | 0.13 | 0 | 20 | 1.86 | 0.53 | 0.24 | -0.01 | 2/4/2026 | 2/4/2026 3:59:56 PM EST |
| 10.00 | 0.00 | 1.55 | 0.78 | 0.70 | 0.00 | 0.00% | 0.08 | 0 | 189 | 1.57 | 0.31 | 0.22 | -0.01 | 1/22/2026 | 2/4/2026 3:59:56 PM EST |
| 11.00 | 0.00 | 0.50 | 0.25 | 0.45 | 0.00 | 0.00% | 0.02 | 0 | 89 | 0.92 | 0.15 | 0.15 | 0.00 | 1/22/2026 | 2/4/2026 3:59:56 PM EST |
| 12.50 | 0.00 | 1.00 | 0.50 | 0.25 | 0.00 | 0.00% | 0.04 | 0 | 351 | 1.63 | 0.04 | 0.06 | 0.00 | 1/23/2026 | 2/4/2026 3:59:56 PM EST |
| 14.00 | 0.00 | 0.60 | 0.30 | 0.52 | 0.00 | 0.00% | 0.02 | 0 | 125 | 1.48 | 0.01 | 0.02 | 0.00 | 12/4/2025 | 2/4/2026 3:59:56 PM EST |
| 15.00 | 0.00 | 2.00 | 1.00 | 0.07 | 0.00 | 0.00% | 0.07 | 0 | 332 | 2.80 | 0.00 | 0.01 | 0.00 | 1/20/2026 | 2/4/2026 3:59:56 PM EST |
| 16.00 | 0.00 | 4.80 | 2.40 | 0.50 | 0.00 | 0.00% | 0.15 | 0 | 13 | 5.34 | 0.00 | 0.00 | 0.00 | 10/15/2025 | 2/4/2026 3:59:56 PM EST |
| 17.00 | 0.00 | 0.30 | 0.15 | 0.25 | 0.00 | 0.00% | 0.01 | 0 | 3 | 1.46 | 0.00 | 0.00 | 0.00 | 10/2/2025 | 2/4/2026 3:59:56 PM EST |
| 18.00 | 0.00 | 1.25 | 0.63 | 0.18 | 0.00 | 0.00% | 0.04 | 0 | 17 | 2.51 | 0.00 | 0.00 | 0.00 | 10/1/2025 | 2/4/2026 3:59:56 PM EST |
| 20.00 | 0.00 | 4.60 | 2.30 | % | 0.11 | 0 | 0 | 5.51 | 0.00 | 0.00 | 0.00 | 2/4/2026 3:59:56 PM EST |
Puts
| Strike | Bid | Ask | Premium | Last Price | Change | %Chg | Premium to Strike Price Ratio | Volume | Open Interest | IV | Delta | Gamma | Theta | Last Trade | Last Updated |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2.50 | 0.00 | 4.80 | 2.40 | % | 0.96 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 2/4/2026 3:59:56 PM EST | |||
| 5.00 | 0.00 | 3.80 | 1.90 | 0.55 | 0.00 | 0.00% | 0.38 | 0 | 20 | 7.76 | 0.00 | 0.00 | 0.00 | 7/30/2025 | 2/4/2026 3:59:56 PM EST |
| 6.00 | 0.00 | 4.80 | 2.40 | 0.35 | 0.00 | 0.00% | 0.40 | 0 | 5 | 8.08 | -0.02 | 0.02 | 0.00 | 9/30/2025 | 2/4/2026 3:59:56 PM EST |
| 7.50 | 0.05 | 0.25 | 0.15 | 0.25 | 0.00 | 0.00% | 0.02 | 0 | 620 | 0.53 | -0.15 | 0.14 | -0.01 | 2/2/2026 | 2/4/2026 3:59:56 PM EST |
| 9.00 | 0.25 | 1.10 | 0.68 | 0.65 | 0.00 | 0.00% | 0.08 | 0 | 52 | 0.52 | -0.47 | 0.24 | -0.01 | 2/3/2026 | 2/4/2026 3:59:56 PM EST |
| 10.00 | 0.75 | 4.90 | 2.83 | 2.97 | 0.00 | 0.00% | 0.28 | 0 | 2 | 3.56 | -0.69 | 0.22 | -0.01 | 8/13/2025 | 2/4/2026 3:59:56 PM EST |
| 11.00 | 0.40 | 4.90 | 2.65 | 1.20 | 0.00 | 0.00% | 0.24 | 0 | 2 | 2.89 | -0.85 | 0.15 | 0.00 | 1/22/2026 | 2/4/2026 3:59:56 PM EST |
| 12.50 | 1.10 | 4.90 | 3.00 | 2.90 | 0.00 | 0.00% | 0.24 | 0 | 160 | 1.95 | -0.96 | 0.06 | 0.00 | 12/10/2025 | 2/4/2026 3:59:56 PM EST |
| 14.00 | 2.90 | 7.50 | 5.20 | % | 0.37 | 0 | 0 | 3.07 | -0.99 | 0.02 | 0.00 | 2/4/2026 3:59:56 PM EST | |||
| 15.00 | 3.90 | 8.50 | 6.20 | % | 0.41 | 0 | 0 | 3.21 | -1.00 | 0.01 | 0.00 | 2/4/2026 3:59:56 PM EST | |||
| 16.00 | 4.90 | 9.50 | 7.20 | % | 0.45 | 0 | 0 | 3.33 | -1.00 | 0.00 | 0.00 | 2/4/2026 3:59:56 PM EST | |||
| 17.00 | 6.00 | 10.50 | 8.25 | % | 0.49 | 0 | 0 | 3.44 | -1.00 | 0.00 | 0.00 | 2/4/2026 3:59:56 PM EST | |||
| 18.00 | 7.00 | 11.50 | 9.25 | % | 0.51 | 0 | 0 | 3.55 | -1.00 | 0.00 | 0.00 | 2/4/2026 3:59:56 PM EST | |||
| 20.00 | 9.00 | 13.50 | 11.25 | % | 0.56 | 0 | 0 | 3.73 | -1.00 | 0.00 | 0.00 | 2/4/2026 3:59:56 PM EST |