Quote from exQQQQseme:
Ursa, generally I like the long butterfly (the OTM variety) for the following reasons:
Hi Bob,
I'm not an expert in butterflies perse, but I will give my views anyway.
1) Cheap...further away the body is from the strike price of the body, the lower the net debit. The maximum risk is the net debit.
Cheap is such a relative thing. Compared to what? To make any kind of profit you will need to do a lot of them and then they're not so cheap anymore.
As said,
any option position gives you exactly what you pay for. The R/R is build in the pricing structure and can merely be remoddeled by choosing different legs. In a sense, they are all the same and thus all equally expensive.
You can optimize and look which options give you the most delta for the money, or the least gamma for the theta, But that is all fixed when doing a butterfly.
So, I don't think butterflies are cheap. It's like saying there are cheap stock. There aren't.
2) They operate independently of any other positions you have open. No reason one couldn't have a February Fly with certain strike prices and a March Fly with different strike prices.
Why would that be not the case? I think I miss your point here. Every position, indeed every leg of every position and every combination of legs from different positions is to be seen as an independant position.
Eg. Your FEB and MAR butterfly together form 3 (diagonal) calendars. 2 long and 2 short. The fly itself is a bull and a bear vertical combined etc etc..
3) With a truly balanced butterfly (not talking about that Broken Wing Butterfly some people love), there is no option requirement cash holdback beyond the opening net debit. This is a very important criteria.
Yes, the fact that the risk is known (and thus the marrgin requirement fixed) is the most important advantage of butterflies.
4) They work with just about any stock. With an ATM butterfly, one would look for a high IV skew. With an OTM butterfly one would look for a low IV skew.
I don't know much about skew. Maybe you can explain how you profit from skew with a butterfly.
5) I have a full time business hence my trading time is somewhat limited. With an OTM butterfly, I can "set it...and forget it".
True, but this goes for almost any long (debit) option position.
6) They serve as an excellent hedge as protection against an open position.
Too general, for me. Any position can be used as a hedge against other (opposite) positions. A long put is a good hedge against long stock, but might just as well buy a call proper.
7) They can be adjusted from time to time; however, this gets complicated.
Again, that is not an advantage of butterflies since it can be done to any position.
8) One can build a Butterfly one leg at a time and over time. If things fall right, it is possible to turn it into a risk free trade. (If not completely risk free, at least to a low miniscule amount.) See my posting this morning in the "Reverse Collar" thread.
There are a few, mostly interesting threads about this subject, about 6 months ago, i think. Also, the magnificent Riskarb for a while build 'free' Iron Fly's this way. He beared the full risk for a naked straddle and once it became even with the wings he bought those. He then opened new naked straddles.
So, in short, the main advantage is it's known and limited risk. The other points I just don't see. I would urge you to get the 'cheap' idea out of your head.
Ursa..