Anyone do long calendar calls just prior to earnings when the IV on the near contract is 10% or more than the next month's IV. For instance, in AMZN, selling the May 80 or 85's with an IV of 12 to 14% above the June 80 or 85's which can be bought. Some of the posts I have seen on ET mention using calendars when there is lower volatility, but how about when there is a time skew? Anybody do this type of trade?
