This one seems quite tricky. I understand the price of an option increases with E(vol) but still this question doesn’t quite make sense to me.
You have a butterfly, straddle & collar.
The answer says that the performance is dependant on the movement of the underlying in a collar whereas the other two are dependant on the E(vol). Can someone PLS explain how?
thanks作者: sabre 时间: 2013-4-22 07:00
short butterfly - low vol, straddle high vol.
collar - irrespective of vol.作者: RMontgomery 时间: 2013-4-22 07:00
^^ agree with CPK作者: canadiananalyst 时间: 2013-4-22 07:00
Ya the straddle and butterfly strategies fundamentally rely on some assumption about volatility. A collar isn’t really concerned with the level of volatility in terms of expected payoffs.
