Options Chain for PROTHENA CORP PLC SHS (PRTA) - $8.60 as of 7/28/2026 6:35:26 PM 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.00 | 5.50 | 10.00 | 7.75 | % | 7.75 | 0 | 0 | 0.00 | 1.00 | 0.00 | 0.00 | 7/28/2026 4:00:00 PM EST | |||
| 2.00 | 5.10 | 8.60 | 6.85 | % | 3.42 | 0 | 0 | 0.00 | 1.00 | 0.00 | 0.00 | 7/28/2026 4:00:00 PM EST | |||
| 3.00 | 4.10 | 7.60 | 5.85 | % | 1.95 | 0 | 0 | 0.00 | 1.00 | 0.00 | 0.00 | 7/28/2026 4:00:00 PM EST | |||
| 4.00 | 2.60 | 6.50 | 4.55 | % | 1.14 | 0 | 0 | 7.12 | 1.00 | 0.00 | 0.00 | 7/28/2026 4:00:00 PM EST | |||
| 5.00 | 2.80 | 5.30 | 4.05 | % | 0.81 | 0 | 0 | 5.14 | 1.00 | 0.00 | 0.00 | 7/28/2026 4:00:00 PM EST | |||
| 6.00 | 1.80 | 4.90 | 3.35 | % | 0.56 | 0 | 0 | 5.08 | 0.98 | 0.04 | 0.00 | 7/28/2026 4:00:00 PM EST | |||
| 7.00 | 0.75 | 3.40 | 2.08 | % | 0.30 | 0 | 0 | 3.33 | 0.88 | 0.13 | -0.01 | 7/28/2026 4:00:00 PM EST | |||
| 8.00 | 0.00 | 2.45 | 1.23 | 1.02 | 0.00 | 0.00% | 0.15 | 0 | 16 | 2.62 | 0.68 | 0.23 | -0.01 | 7/20/2026 | 7/28/2026 4:00:00 PM EST |
| 9.00 | 0.00 | 0.90 | 0.45 | 0.50 | 0.00 | 0.00% | 0.05 | 0 | 1,594 | 1.25 | 0.43 | 0.25 | -0.01 | 7/21/2026 | 7/28/2026 4:00:00 PM EST |
| 10.00 | 0.00 | 0.75 | 0.38 | 0.15 | 0.00 | 0.00% | 0.04 | 0 | 284 | 1.44 | 0.23 | 0.19 | -0.01 | 7/27/2026 | 7/28/2026 4:00:00 PM EST |
| 11.00 | 0.00 | 0.35 | 0.18 | 0.10 | 0.00 | 0.00% | 0.02 | 0 | 1,663 | 1.21 | 0.10 | 0.11 | -0.01 | 7/23/2026 | 7/28/2026 4:00:00 PM EST |
| 12.00 | 0.00 | 0.75 | 0.38 | 0.17 | 0.00 | 0.00% | 0.03 | 0 | 20 | 1.97 | 0.04 | 0.05 | 0.00 | 7/9/2026 | 7/28/2026 4:00:00 PM EST |
| 13.00 | 0.00 | 0.65 | 0.33 | % | 0.03 | 0 | 0 | 2.05 | 0.01 | 0.02 | 0.00 | 7/28/2026 4:00:00 PM EST | |||
| 14.00 | 0.00 | 0.95 | 0.48 | % | 0.03 | 0 | 0 | 2.61 | 0.00 | 0.01 | 0.00 | 7/28/2026 4:00:00 PM EST | |||
| 15.00 | 0.00 | 0.15 | 0.08 | % | 0.01 | 0 | 0 | 1.54 | 0.00 | 0.00 | 0.00 | 7/28/2026 4:00:00 PM EST | |||
| 16.00 | 0.00 | 4.80 | 2.40 | % | 0.15 | 0 | 0 | 7.63 | 0.00 | 0.00 | 0.00 | 7/28/2026 4:00:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.00 | 0.00 | 0.05 | 0.03 | 0.10 | 0.00 | 0.00% | 0.03 | 0 | 1 | 0.00 | 0.00 | 0.00 | 0.00 | 7/22/2026 | 7/28/2026 4:00:00 PM EST |
| 2.00 | 0.00 | 0.25 | 0.13 | % | 0.07 | 0 | 0 | 4.74 | 0.00 | 0.00 | 0.00 | 7/28/2026 4:00:00 PM EST | |||
| 3.00 | 0.00 | 1.00 | 0.50 | % | 0.17 | 0 | 0 | 6.08 | 0.00 | 0.00 | 0.00 | 7/28/2026 4:00:00 PM EST | |||
| 4.00 | 0.00 | 1.15 | 0.58 | % | 0.14 | 0 | 0 | 5.01 | 0.00 | 0.00 | 0.00 | 7/28/2026 4:00:00 PM EST | |||
| 5.00 | 0.00 | 1.15 | 0.58 | % | 0.12 | 0 | 0 | 3.91 | 0.00 | 0.00 | 0.00 | 7/28/2026 4:00:00 PM EST | |||
| 6.00 | 0.00 | 1.35 | 0.68 | % | 0.11 | 0 | 0 | 3.38 | -0.02 | 0.04 | 0.00 | 7/28/2026 4:00:00 PM EST | |||
| 7.00 | 0.00 | 1.40 | 0.70 | % | 0.10 | 0 | 0 | 2.68 | -0.12 | 0.13 | -0.01 | 7/28/2026 4:00:00 PM EST | |||
| 8.00 | 0.00 | 0.50 | 0.25 | 0.35 | 0.00 | 0.00% | 0.03 | 0 | 1 | 0.88 | -0.32 | 0.23 | -0.01 | 7/23/2026 | 7/28/2026 4:00:00 PM EST |
| 9.00 | 0.20 | 0.95 | 0.58 | 0.91 | 0.00 | 0.00% | 0.06 | 0 | 2 | 0.78 | -0.57 | 0.25 | -0.01 | 7/14/2026 | 7/28/2026 4:00:00 PM EST |
| 10.00 | 0.40 | 2.55 | 1.48 | % | 0.15 | 0 | 0 | 1.84 | -0.77 | 0.19 | -0.01 | 7/28/2026 4:00:00 PM EST | |||
| 11.00 | 0.00 | 4.80 | 2.40 | % | 0.22 | 0 | 0 | 3.58 | -0.90 | 0.11 | -0.01 | 7/28/2026 4:00:00 PM EST | |||
| 12.00 | 2.00 | 5.70 | 3.85 | % | 0.32 | 0 | 0 | 3.72 | -0.96 | 0.05 | 0.00 | 7/28/2026 4:00:00 PM EST | |||
| 13.00 | 3.00 | 6.60 | 4.80 | % | 0.37 | 0 | 0 | 3.82 | -0.99 | 0.02 | 0.00 | 7/28/2026 4:00:00 PM EST | |||
| 14.00 | 4.10 | 6.90 | 5.50 | % | 0.39 | 0 | 0 | 3.21 | -1.00 | 0.01 | 0.00 | 7/28/2026 4:00:00 PM EST | |||
| 15.00 | 5.10 | 7.90 | 6.50 | % | 0.43 | 0 | 0 | 3.38 | -1.00 | 0.00 | 0.00 | 7/28/2026 4:00:00 PM EST | |||
| 16.00 | 6.10 | 9.60 | 7.85 | % | 0.49 | 0 | 0 | 4.35 | -1.00 | 0.00 | 0.00 | 7/28/2026 4:00:00 PM EST |