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发表于 2012-2-23 22:54:53
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leverage reaction portfolio
1 -10% -10%
2 -10% -20%
3 -10% -30%
1 -20% -20%
2 -20% -40%
3 -20% -60%
1 -30% -30%
2 -30% -60%
3 -30% -90%
sample maths. so even 3 times leverage, if the market reaction 30%, the portfolio will lost -90%. I don't think people can insist their positon at this situation.
we all talk about precise market direction. the question is we are not god, some times we right, some times we wrong. and some times even we right, the market begin pullback and no liquid, see 2008 furture market in china.
we can use leverage, but not in this way, this very is dangers. if you see the market direction right, you can not use leverage buy positon, if you are right, and you can buy call options or put options, if we wrong, we lost the premium. but our market don't have these product now, they will be here in the future.
The finance market is so big, so complex, we all thing we all smart, the fact is not. don't see people failed and laugh them, because they all great before they failed. I'm not be great until now. so sad. we need keep study. the prof midas give the theory, but is not enough. I really think is not enough, we need study lots of details. the problem is we don't know what knowledge we need, because there is no outline. so we should keep study, open our eyes to watch and think, never think enough. there is no enough for enough.
thanks xboys talk, he point to key. we only focus on the discuss, lost ourself.
very very sorry for bad english. |
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