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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

Gamma exposure (2026-11-06)

GEX estimates dealer hedging flow at each strike.

Positive GEX = dealers are long gamma; they buy the dip and sell the rip, dampening volatility. Negative GEX = dealers are short gamma; they sell the dip and buy the rip, amplifying volatility.

DTE \text{DTE}
14.0
441.0
| Δ | |\Delta|
0.00
1.00
Moneyness Moneyness
-12.1
12.1
View values by strike
PRTA · Gamma exposure · 2026-11-06. USD of exposure per 1% underlying move.
StrikeCallsPuts
3.00 0.989 0
5.00 57.2 0
6.00 106 -10.2 K
7.00 127 -3.34 K
8.00 4.33 K -54.8
9.00 25.6 K -1.09 K
10.00 2.33 K -39.9
11.00 13.7 K -7.18
12.00 1.05 K -169
13.00 289 0
14.00 360 0
15.00 5.49 K -4.85
16.00 54.3 0
17.00 6.5 0
18.00 31.7 0
20.00 480 0