ok...I get it...your doing it as a straddle/cal but if it is a reverse arn't you looking for IV greater in the back month?
Quote from skanan:
Here is my short calendar candidate. I appreciate any feedback.
TASR: buy Mar straddle and Sell Sep straddle.
I assume 15 cents slippage from b/a on the spread as worstcase. Total slippage to open and close the short calendar might be about 30 cents.
Buy Mar strike $10 straddle 1.80, sell Sep $10 straddle $3.70. Total credit $1.95
Assume holding for one day, theta lost is about 2.50 cent. If the IV loss 500bp, the spread may be widen to $1.99. To overcome slippage on buying back the spread also, IV has to loss 900bp.
I think I have to try put on one contract to see how much real slippage is. Tasr should move after the earning too so that would help overcome the slippage. Using Maverick leg-in technique could have reduced the slippage too.
I need the real data to see IV before and after earning and price move after earning to be able to project this more accurate.
-Nick
frustrating...a winning play that has become difficult to manage-down again today the March 70 short put is close to no extrensic value left leaving me vulnerable to getting put to so decided to roll and ratio.