Prothena Corporation (PRTA)
PRTA Daily Delta Exposure
PRTA's current Delta Exposure (DEX) is 17.64K shares, which is 80% larger than the 3M average of 9.79K shares. During this period, DEX ranged from -10.23K on Jun 26, 2025 to 39.12K on Aug 22, 2025, swinging between net long and short dealer positioning. Delta exposure has been decreasing recently, shifting the directional hedging pressure. The current put-call delta ratio of 0.69 shows bullish call positioning but leaves the market vulnerable to pullbacks. Moderate DEX levels suggest normal market maker hedging activity.
DEX History
| Date | Call Delta | Put Delta | Net Delta | P/C Delta |
|---|---|---|---|---|
| Aug 29, 2025 | 57,224.88 | -39,589.74 | 17,635.14 | 0.69 |
| Aug 28, 2025 | 56,992.01 | -36,241.77 | 20,750.24 | 0.64 |
| Aug 27, 2025 | 63,487.89 | -49,349.84 | 14,138.05 | 0.78 |
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