Thank you Ricky for the 'Algorithm for Flattening Expiration Graphs'.
I am looking at it.
Thank you James for your comments.
Previously, a poster mentioned that he went through Cottle's book a couple of times to soak in his method.
I found it heavy-going too but I continued because what I learned from it helped me a lot.
You seem to be familiar with his book and style.
What was your positive experience that helped you understand his book better?
Thanks,
Sam
- - -
--- In OptionClub@yahoogroups.com, Ricky Jimenez <rickyjim@...> wrote:
>
> On Fri, 21 May 2010 15:31:12 -0000, "JP" <jamesbparker999@...>
> wrote:
>
> >Ricky
> >
> >Please don't take this as being in any way critical, but I disagree completely with you regarding Cottle's book [Options Trading: The Hidden Reallity] as it contains many examples of dissections and synthetically equivalent positions.
> >
> >Michael's positions frequently end up with 'guts' options that can easily be plotted on a risk graph, but not easily understood from the raw data unless you apply some form of dissction.
> >
> >For example in the preface to Cottle's book he asks: what amount of money is the most one can lose with the following position:
> >
> >QQQQ trading at 37.30
> >36 strike call at $1.70
> >39 strike put at $1.90
> >
> >A trader buys 10 lots of the 36c / 39p strangle for $3.60 ea.
> >
> >Have a go at answering without using a risk graph ..
> >
> >Cheers
> >James
> >
> I agree, James that there are plenty of examples in the book but not
> enough information how to go about using dissections to make money.
> Buying or selling a box can simplify a position, but I need guidelines
> on where to look for such opportunities and how they lead to profits.
> I don't see why it is a virtue, not to draw a risk graph. Using the
> mechanical table method I have shown before:
>
> 10*39p
> 10*36c
> Slope: -10 0 10
> Payoff: 30 30
> Profit: -6 -6
> BE: 35.40 39.60
>
> so the minimum result is -6 in the interval [36,39].
>
> I did try to find use for one of Charles' ideas, decomposition in
> terms of "baby butterflies". After staring at his description for a
> while, I saw that any position, in s region where strikes are at equal
> distances, can be decomposed into a positive or negative whole number
> of baby all put or all call flies. This becomes obvious if you
> realize that a baby fly has the property that its expiration payoff is
> the distance between strikes at its center and zero at its wings. I
> thought that maybe I could buy a wide fly, say, and then sell off most
> of the ATM babies as the underlying hit various strikes in between the
> wings of the wide fly. But I soon found out that even with well
> traded stocks like Google, ATM baby flies have very large bid/ask
> spreads so I was not accumulating much credit by selling them.
>
> But if you can give me a hint as to where to look for the really
> useful stuff in the book, I will try again. :-)
>
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