Chapter 3  用移动平均线来判定买卖时点

动平均线超过长期的移动平均线,表示短期的投资者愿意高价抢进,价格将会有更积极的表现。

如果价格在平均成本之下,表示大家都赔钱。当短期的移动平均线跌破长期的移动平均线,表示短期的投资者不计代价卖出持有头寸,汇价将会出现弱势表现。

投资者可以运用平均成本的观念,借由长短期移动平均线的关系,来找到买卖时点。至于长、短期的线,是比较得来的。比如:如果5日线和10日线比较,5日线为短线,10日线为长线;如果10日线和20日线比较,则10日线为短线,20日线为长线。

买进时机

当短期的移动平均线突破长期的移动平均线,为买进讯号。

当短期的移动平均线突破长期的移动平均线,且两条线上扬,为积极买进讯号,又称为“黄金交叉”。

如图5.3.1,10日移动平均线反转向上,突破20日移动平均线,且两条线上扬,呈现“黄金交叉”,为买进讯号。

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