On ET I read a lot of "The only way to do that is X or the best way to do that is Y." I think the answer is that the best way is what works for you.Quote from maninjapan:
Which would be the more common trade though, going long IV a couple of weeks leading upto EA and closing out just before? Or getting on short IV just before EA and closing out just after the announcement?
I was thinking that calendar ratios meant setting the ratios to be Vega neutral, is this not the case??
In a perfect world you'd want to go long further month IV a couple weeks before the EA, ride the IV up and if lucky, catch some directional move. Then you'd want to short near month IV just before the EA. In reality, you have several weeks of time decay to fight and you never know how much expansion you're going to get. Since I don't have a lotta luck finding that perfect world, I look for set ups where all prices today result in a shifted risk graph that has a better than average expected profit. Lots of moving parts, lots of sifting.
As for the vega thing, I'm not that guy. I like pretty risk graph pictures

