How much is currently at risk in the position. Iron is a credit of 20.70 right now. So risk is 29.30 (50-20.70). Width of the strikes (50) minus the credit of the spread. The price of the call or put fly would be the risk, as it's a debit.
Same situation as last week. Not confirmed yet. I still say 10/23, they have been doing 4th Tuesday lately. Nov IV is currently about 3.5 points higher than Oct.
From your "when is aapl's earnings?" thread in the Options forum. October 15, 2012 http://www.elitetrader.com/vb/showthread.php?s=&postid=3626644#post3626644
it just keeps making more and more sense to me that its gonna falll in nov opex... i'm wanting to calender..