Because 12/19 is monthly option, and often used in leap too

来源: 于 2025-12-09 11:06:55 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

It is skewed in the sense that many OI were created 9 or 12 months ago at lower strike pirce (for example, you have 32k OI on call option at strike price of 150). 

Net net, 12/19 monthly max pain can be safely ignored