金字塔操作法 | 胡立阳
2014-03-09 作者:胡立阳
投资人问:
常常听到分析师在建议投资人可采用金字塔方式来买进,很奇怪的名称,怎么买股票会跑到埃及去了,他们指的是否就是要分批买进?
“金字塔”型股票操作法在世界各地已行之多年且相当风行。它主要是说,当投资人买进了一批股票后,立刻遇到上涨,在兴高采烈之余,总会兴起再多加码补进的念头,这时只需遵行“每次加码数量应比上一次少”的原则,就会安全多了。
举例说,你以每股20元买进了5手某家公司股票,当股价上涨了1元,也就是21元,若想加买,可以买进4手。假设股票再涨至22元时,可以再加买3手,因此,在数量必须依序减少的原则下,究竟应加买多少,则可由投资人自行决定。
这套操作法完全是针对投资人的贪念而设计的。许多缺乏自制力的人,买进股票后,见到上涨,便会犯下得意忘形的毛病,一时毫无约束地疯狂加买。譬如说,在20元时买进了5手,但在21元时又加码了8手,这个时候只要股票稍稍回跌个5毛钱,便开始摇摇晃晃,这都是“头重脚轻”惹的祸。
“金字塔”操作法与“分批买进”法乍看相似,实则不尽相同,因为前者是在事先较无准备的情况下,随兴致与机会以“缩量”加码买进,目的是在消除投资时的过度情绪化。而分批买进法通常则是按部就班,依计划分批以“等量”买进,为的是要避免患得患失造成坐失良机。两种方法各具备其优点与特色,都是值得参考的投资良方。
加买数量依序减少是金字塔操作法的原则
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