Quote from KPS21:
IB posted the following bulletin this morning. Their interpretation of the rules does NOT seem correct to me. Our other broker does not have this interpretation either.
Does anyone have any idea who is right?
I am almost certain IB is incorrect and that put options may be exercised. Of course, once exercised, the shares will not be borrowable and the customer will be forced to buy in the short.
At least they allow customers to buy puts. E*Trade apparently forbid that (as least for last Friday, expiration day).
I posted an objection to IB's actions on my blog:http://blog.mdwoptions.com/options_for_rookies/2008/09/opinion-madness.html
Bottom line: I think IB adopted a CYA attitude to protect themselves from problems.
Mark