Can anyone explain why SPY ITM PUTs with greater than about 25 DTE have so much Extrinsic value? Below is a view of the September monthly, then following is the view of all the PUT options. Typically, (and for other securities and indexes) the ITM PUT extrinsic value tends toward zero, like the calls do. -- I'd like to get my head around this.
Understanding ITM PUT IV oddity in SPX/SPY RUT/IWM
- Thread starter stepandfetchit
- Start date
I feel like an idiot! Thank you very much! Of course!
Ex date is always Friday of expiry
Can someone shed insight on the differences in the IV graph for the PUTs VS the CALLs shown below? This is the Implied Volatility for SPY for the SEP monthly expiration (other expirations have similar graphs). Notice that the CALL_IV graph is very similar to the PUT_IV graph, but is rotated clock-wise slightly and shifted very slightly to the right by $5. I am trying to understand both the rotation, and the X-offset. I am also including a graph of the IV VS Delta for the Calls and Puts for completeness. -- I suspect this is something obvious that I am missing, and likely also related to Dividend payments.
