I don't deal with wheat or bean calls..
only spider options,
Nothing unusual happened with my positions
they were not bigger than usual
that's why I was surprised .
atticus -I might use wings or ..
oldnemesis, I liked this link
http://quant.stackexchange.com/ques...-be-short-gamma...
I have about half my money available
as what they consider - available Option buying power .
But now they added another criteria
" when stressed up or down 20%,
now represent a theoretical loss of more
than double the current equity in your account.."
There is a difference between...
I have a portfolio margin in TOS ,
I'm well above with the Option buying power
and then I receive this Email :
Hello Mark,
We are writing to inform you regarding an increased option exposure in your account ending in ****. Your various positions, when stressed up or down 20%, now...
After speaking with TOS , this is their answer :
we use to have the requirements on the thinkorswim.com website, but it looks like we need to incorporate that information on the tdameritrade.com website as it is no longer on the TOS website.
here is the information that you will need...
I have to thank ids who explained to me several
points I was not aware of.
I think it is probably difficult to produce a specific
calculation on a trade but there must be an
inbetween option of knowing some of the
basic rules that are important to the Broker .
at the moment there is...
You would think that they are obliged to
publis these requirements but it seems
the opposit - both TOS and IB and no other
Broker I know of - don't specify and publish
a clear Margin Guideline that will specify what
are their requirements ..
I realy don't know why ..
I totaly agree with you , but when I tried understanding
those restrictions in TOS with the person in charge
I had the feeling he knows less than me or
he doesn't want to reveal those specific requirements ..