Hi Trades, All
No comments on this, so I suspect I bored a lot of folks !!
The settlement (ATM LINE) for the Feb SIH11 options expiring on 1/26 should have been close to 27.095.
If it actually was less than 27 a bunch more puts were ITM.
Market for SIH11 continued up through close at 27.565 so doing more damage to holders of any Puts that were ITM.
Anyway, this gets "pretty messy" and I think I have bored a lot of folks with this.
I will see if Ronbo finds this level of detail on expiration in the Options book I assume he will read. I have never encountered this detail in any book.
Now, Matt, maybe as a Broker, this would be a good time/place for you to ring in with a detailed explanation of just how these options settle at expiration.
I may be all wet on everything I have written, but I tend to doubt it.
Lee