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may 15, 2003
dear group members,
please excuse me for my audacious request. i have a problem on
money management for futures trading, but can not find someone familiar with to
give me advice. i have found this is a professional group
for the topic, so perhaps you are willing to do me a favor.
thanks.
i have one problem about the optimal f.
for a trading system and a futures market, if i
have calculated the optimal f is 0.42 and the biggest loss is -3329.39 per
contract, the optimal f rule tells that for every
3329.39/0.42=7927.12 i have in my capital, i should make one
contract for biggest profit.
but if the margin level is 8% and the price for one contract
is about 120000, the margin is 120000*0.08=9600. that means for every 7927.12 i
have, for biggest profit, i should buy one contract (9600 for margin),
which seems impossible.
even if i weaken the optimal f rule by "for every 9600 i have,
i can make one contract for big but not biggest profit", i can merely afford for
the margin, but the total margin for the total contracts will costs all
the capital i have, which also seems impossible.
if i use the half optimal f of 0.21, the margin and capital
conflict can be solved, but it will severely reduce the profit.
the above is my problem about the optimal f. wish i
express myself clearly and my request does not make you too much
trouble.
perhaps the developer of the method can
explain his/her optimal f more clearly. i have searched on the internet to find
ralph vince's email, but unfortunately failed. perhaps you have his/her email
and are willing to share with me.
i am not quite optimistic for solution, and only treat the
dead horse as if it were alive.
sincerely,
yao kai
china
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