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Prothena Corporation plc Ordinary Shares PRTA 7.97 0.08 1.01%

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ATM IV
1.04
Put Call Ratio (OI)
0.322
Put Call Ratio (Vol)
0.538
IV Rank
34
IV Percentile
91.9
Max pain
7

Delta exposure (2026-11-06)

Delta approximates how many cents the option moves for a $1 move in the underlying.

A 0.50 call gains ~$0.50 if the stock goes up $1. Delta also approximates the option's probability of finishing in the money.

DTE \text{DTE}
14.0
441.0
| Δ | |\Delta|
0.00
1.00
Moneyness Moneyness
-12.1
12.1
View values by strike
PRTA · Delta exposure · 2026-11-06. Delta-weighted share equivalents.
StrikeCallsPuts
3.00 94.9 0
5.00 1.87 K 0
6.00 1.76 K -22.7 K
7.00 1.7 K -9.44 K
8.00 18.2 K -187
9.00 87.5 K -8.5 K
10.00 8.88 K -357
11.00 54.7 K -83
12.00 3.79 K -2.17 K
13.00 2.32 K 0
14.00 2.07 K 0
15.00 34.6 K -73.7
16.00 302 0
17.00 59.8 0
18.00 190 0
20.00 3.44 K 0