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旧 Aug 25th, 2009, 15:28     #1
东山再起
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默认 【讨论】大家讨论一下高等数学吧

样样好睡完午觉喝了杯咖啡很清醒,大家讨论一下正态分布吧

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无限风光在险峰!
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旧 Aug 25th, 2009, 15:32   只看该作者   #2
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這要崇拜一下,炒股票你真的很用心。

擎傲世之龍碼 從混沌中明清澈
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东山再起 (Aug 25th, 2009)
旧 Aug 25th, 2009, 15:33   只看该作者   #3
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默认

东山干什么都很上心的
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旧 Aug 25th, 2009, 15:34   只看该作者   #4
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默认

图注:

在1个均方差里出现的概率是68%

在2个均方差里出现的概率是95%

在3个均方差里出现的概率是95.44%

在4个均方差里出现的概率是99.74%
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franktang1 (Aug 25th, 2009)
旧 Aug 25th, 2009, 15:40   只看该作者   #5
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默认

大于(均值+1个均方差)的概率是16%
小于(均值-1个均方差)的概率是16%

大于(均值+2个均方差)的概率是2.5%
小于(均值-2个均方差)的概率是2.5%

大于(均值+3个均方差)的概率是0.13%
小于(均值-3个均方差)的概率是0.13%

大家买卖期权的时候请参考上述概率论,有问题吗
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旧 Aug 25th, 2009, 17:16   只看该作者   #6
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默认

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作者: 东山再起 查看帖子
大于(均值+1个均方差)的概率是16%
小于(均值-1个均方差)的概率是16%

大于(均值+2个均方差)的概率是2.5%
小于(均值-2个均方差)的概率是2.5%

大于(均值+3个均方差)的概率是0.13%
小于(均值-3个均方差)的概率是0.13%

大家买卖期权的时候请参考...
先请东山兄(通俗移动得)解释一下这个概率区间和期权定价上的关系好吗?是期权得价格服从正胎分布吗?问题太多了。

有人向我挑战,我不回话,只是疾驰而去,然后放马后炮打倒他!
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旧 Aug 25th, 2009, 17:55   只看该作者   #7
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默认

这个是股价分布情况,与自然界其他情况一样属于正态分布,中间大,两头小,

股价大涨大跌的概率都很小,不要大量买OUT OF MONEY的期权

华尔街对期权定价考虑了东山的正态分布

CALL的定价= 股价×股价的正态分布- 行权价×行权价的正态分布

PUT的定价= 行权价×行权价的正态分布- 股价×股价的正态分布

影响正态分布的因素很多,暂不告诉你

正态分布有多种变形,就像女同志的乳部一样,有中间高,两端低的,中间不高,两端粗

的,苹果,菠萝,梨等等,也就是要忽悠起来,不同的股票忽悠得不一样,但一忽悠就有机

会。。。说着说着我都要LOST了,不知是否通俗



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先请东山兄(通俗移动得)解释一下这个概率区间和期权定价上的关系好吗?是期权得价格服从正胎分布吗?问题太多了。
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franktang1 (Aug 25th, 2009)
旧 Aug 25th, 2009, 18:07   只看该作者   #8
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默认

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作者: 东山再起 查看帖子
说着说着我都要LOST了,
光说不练,为什么会LOST的呢?顶多是纸上盈亏

警世基金就是用来警世的,不是用来赚钱投资的
我要是能赚钱,还收个鸟费?我要是亏钱,你还投资个鸟蛋?
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旧 Aug 25th, 2009, 18:56   只看该作者   #9
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默认

东山对这里的讨论略感郁闷,本来想通过对基本数学的学习引起大家对大盘的思考,进而引

导大家玩指数期权,居然无人思考,无人发问。

唉,曲子又弹高?
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笑熬漿糊 (Aug 25th, 2009), franktang1 (Aug 25th, 2009)
旧 Aug 25th, 2009, 19:13   只看该作者   #10
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Talking

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作者: 东山再起 查看帖子
东山对这里的讨论略感郁闷,本来想通过对基本数学的学习引起大家对大盘的思考,进而引

导大家玩指数期权,居然无人思考,无人发问。

唉,曲子又弹高?
基本這裡對買進股票都很缺乏自己很獨立的分析,都是跟風,根本無所適從,能有幾個問題?最直接的表現就是買進了股票沒漲就罵MM,要知道你不尊重MM就是不尊重股票,怎麼可能掙錢?
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旧 Aug 25th, 2009, 19:17   只看该作者   #11
franktang1
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默认

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作者: 东山再起 查看帖子
东山对这里的讨论略感郁闷,本来想通过对基本数学的学习引起大家对大盘的思考,进而引

导大家玩指数期权,居然无人思考,无人发问。

唉,曲子又弹高?
稍微弹低点吧
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旧 Aug 25th, 2009, 23:03   只看该作者   #12
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默认

你的意思是,买 in the money option 的 risk 小一些?当然啦,reward 也同样小一些?
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旧 Aug 26th, 2009, 00:15   只看该作者   #13
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默认

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样样好睡完午觉喝了杯咖啡很清醒,大家讨论一下正态分布吧

附件 34328
这跟 小山 抄股票 有关系 吗 ?


和尚念经
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旧 Aug 26th, 2009, 08:18   只看该作者   #14
hazelton
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默认

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作者: 东山再起 查看帖子
东山对这里的讨论略感郁闷,本来想通过对基本数学的学习引起大家对大盘的思考,进而引

导大家玩指数期权,居然无人思考,无人发问。

唉,曲子又弹高?
请问东山做 指数期权 主要是什么策略用得多呢,
还有比如现在这种情况? 看空好象不太对,看长又好象挺高的了,说不动吧,还在向上?

blog.163.com/itoronto
多伦多一无名小街。。。
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旧 Aug 26th, 2009, 09:48   只看该作者   #15
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默认

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CALL的定价= 股价×股价的正态分布- 行权价×行权价的正态分布

PUT的定价= 行权价×行权价...
不知我是否理解对?
CALL的定价= 股价×股价在正态分布中对应的概率- 行权价×行权价在正态分布中对应的概率
龙虎山 当前离线  
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旧 Aug 26th, 2009, 11:15   只看该作者   #16
东山再起
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默认

你的理解很对!

分布是没有概率,只有对分布进行积分才有概率。

SO, 预测某个点位是没有意义,预测某个区间有意义



引用:
作者: 龙虎山 查看帖子
不知我是否理解对?
CALL的定价= 股价×股价在正态分布中对应的概率- 行权价×行权价在正态分布中对应的概率
东山再起 当前离线  
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旧 Aug 26th, 2009, 11:19   只看该作者   #17
东山再起
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东山再起 has a reputation beyond repute东山再起 has a reputation beyond repute东山再起 has a reputation beyond repute东山再起 has a reputation beyond repute东山再起 has a reputation beyond repute东山再起 has a reputation beyond repute东山再起 has a reputation beyond repute东山再起 has a reputation beyond repute东山再起 has a reputation beyond repute东山再起 has a reputation beyond repute东山再起 has a reputation beyond repute
默认

上次东山总结临近OE可以玩SWING策略,别的还处于只到2试阶段,要经过3试再公布策略

结果

你做指数期权有何体会呢


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作者: hazelton 查看帖子
请问东山做 指数期权 主要是什么策略用得多呢,
还有比如现在这种情况? 看空好象不太对,看长又好象挺高的了,说不动吧,还在向上?
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旧 Aug 28th, 2009, 12:54   只看该作者   #18
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默认

东山昨天对SPY进行了统计分析,与XDZM分享

MAR 6--MAR 20, SPY68.92-76.61 涨11%

MAR 20-APR 24, SPY76.61-86.66 涨13%

APR 24-MAY22, SPY 86.66-89.02 涨2.72%

MAY22-JUN26, SPY 89.02-91.84 涨3.17%

JUN26-JULY24, SPY 91.84-98.06 涨6.77%

JULY24-AUG21, SPY 98.06-102.97 涨5%

看了后对大盘有感觉了吧
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