I have a question about rollover day. Do December options (exp Dec 16) expire before or after the rollover is taken into account?
The March 12 contracts are priced 6 points less than the December 2011s, so that would make a pretty huge difference in price. If it were after I would think puts and calls would be out of parity. Put/calls are in parity for Dec 16 options, but not for Dec 31. So it looks like it happens after.
So if I own contracts and sell Dec 16 call options against them, would I be effectively holding both to expiration, and then come Monday own nothing regardless of where the contract ended?
The March 12 contracts are priced 6 points less than the December 2011s, so that would make a pretty huge difference in price. If it were after I would think puts and calls would be out of parity. Put/calls are in parity for Dec 16 options, but not for Dec 31. So it looks like it happens after.
So if I own contracts and sell Dec 16 call options against them, would I be effectively holding both to expiration, and then come Monday own nothing regardless of where the contract ended?
