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CK Choy.

Market Sense 市场意识: 胡立阳股票投资100招 -第90招 简单又有趣的“二分之一平均法”(上)
Be decisive, Be patient, Don’t be greedy, Don't be stubborn

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The information contained in is provided to you for general information/circulation only and is not intended to nor will it create/induce the creation of any binding legal relations. The information or opinions provided do not constitute investment advice, a recommendation, an offer or solicitation to subscribe for, purchase or sell the investment product(s) mentioned herein. It does not have any regard to your specific investment objectives, financial situation and any of your particular needs. Accordingly, no warranty whatsoever is given and no liability whatsoever is accepted for any loss arising whether directly or indirectly as a result of any person or group of persons acting on this information. Investments are subject to investment risks including possible loss of the principal amount invested. The value of the product and the income from them may fall as well as rise.

You should seek advice from a financial adviser regarding the suitability of the investment products mentioned, taking into account your specific investment objectives, financial situation or particular needs, before making a commitment to purchase the investment product. In the event that you choose not to obtain advice from a financial adviser, you should assess and consider whether the investment product is suitable for you before proceeding to invest.

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Saturday 25 June 2011

胡立阳股票投资100招 -第90招 简单又有趣的“二分之一平均法”(上)

投资人问:

  前一阵子我在60元的价位买进一只股票就出差去了,没想到在短短的一个多月的外出期间它居然被拦腰一截,跌到了30元,之后由于太忙,我也差不多已经忘了它。这两天投资顾问通知我这只个股有慢慢往上反弹的迹象,劝我加买一点来摊平成本。其实,我对这只个股早已一点胃口都没有了,只希望找个好价钱卖掉算了。问题是,该反弹到多少钱才卖?我的顾问说:“这很难讲!”你看,连专家都不知道答案,要如何叫我这个门外汉来做决定呢?有谁能给我一点建议?我一定会请他吃一顿最上等的牛排大餐!

  看在你愿意请吃牛排大餐的份上,我一定要提供一点建议!

  当股市在经过相当一阵子的下跌之后,手中仍有持股的投资人会由下挫初期的焦躁、生气转为默默无语的“认命”了,由一开始的极度关心到完全不闻不问,确实是个大转变。

  然而,蛰伏已久的股市有了反转迹象,马上又会勾起了投资人的注意,大家在一阵欢喜之余不免又开始紧张起来了。显然,只要身在股市一天,心情便会受行情起伏影响。无怪乎有人说,那些感叹生活枯燥乏味、常抱怨已心如止水的人,只消去买个几手股票便能脱胎换骨,重享酸、甜、苦、辣的人生。

  言归正传,假设你以60元买进了一只个股,然后股价不幸一路下跌到了30元,接着它又开始反弹了,此时你必定既喜又忧,不知道究竟应该怎么处理才好。是该加码买进,以降低成本?或者是择机出货,少输为赢?

  早在30年前,我就已经开始运用“二分之一平均法”来计算出个股或是指数的支撑与阻力价位,以决定进出。这个方法既简单又有趣,还极为准确呢!

  首先,我们来计算一下。你将上档的60元和最低点的30元,加起来除以2,得其平均价为45元。如果这波的反弹够强劲,股价可能由30元一路先爬升回到45元左右,这就会是反弹时的第一道的关卡。

  因此,你若是决定在30元回升之际补买一批,到45元时便可一次摊平卖出,顺利解套。

  但若你因跌怕了而不愿冒险加码,且一心只求早日脱手或是换股操作,则45元仍然可能是你未来的参考卖点。

  遇到千载难逢的大反弹时,想卖股,而心中又设定了理想的卖点,便再不会猛啃指甲而茫然不知所措了。

  最重要的是,这套将“一个阶段性的高点与低点加起来除以二”来求取中间卖出价位的方法经验证,其准确性极高,是投资人日后在反弹时决定卖点的最佳依据。

  好的,“中级班”又要上课了!

  许多喜欢做研究的人一定会接着问:“上面的例子,假若股价过了45元,那么,下一个阻力关卡会是在哪里呢?”

  答案是:52.5元!

  怎么算出来的?就是拿45元加上60元之后再除以2嘛!

  总之,一直拿最高价与最后的低价加起来除以2,就可以一路算出上档的各个关卡位置了。当然,最后最大的压力关卡会出现在60元,这是毋庸置疑的!




  说明:通过分析这只个股经过了“5R26;30”大跌后的调整走势,可以领略到“二分之一平均法”的神奇。该股5月30日由13.2元一路下跌到7.45元才开始反弹。那么它的第一关卡呢?

  第一阻力关卡(13.2+7.45)÷2=10.33

  股价在第一阻力关卡附近(10.60)冲关不过,开始了新一轮的下跌。

  第二轮下跌到了6.58后开始止跌反弹。那么反弹之后的第一道阻力关卡呢?

  第一阻力关卡(10.60+6.58)÷2=8.59

  可以看到股价在第一阻力关卡(8.60)处略作修整,跌到7.76,再次冲击第二阻力关卡。

  第二阻力关卡(10.60+7.76)÷2=9.18

  股价在冲到9.29附近的第二阻力关卡处休息了四五天,就再次挑战最大的关卡10.60。

  有了“二分之一平均法”,下次碰上股价调整,可以一路计算,很有趣,也再不会慌慌张张了吧。




  说明:由此例子可看出,这只个股的涨跌可以用简单的“二分之一平均法”来计算股价涨跌的关卡。股价先由最高价14.35下跌至8.32,根据“二分之一平均法”可以计算出阻力位在(14.35+8.32)÷2=11.33,果然股价在反弹到关卡附近11.20时,开始回跌。股价第二次下跌又跌回到了8.25的最低价,根据“二分之一平均法”可以计算出阻力位在(14.35+8.25)÷2=11.3。股价在反弹到11.47的关卡附近时又再次拉回休息了一个星期才完成了突破

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