股票市盈率是什么?为什么能帮我们判断股票价值?
在股票市场上有很多投资术语,如果投资者不了解其中意思的话,基本上是很难进行买卖交易的。而其中,市盈率就是一个新手比较难度用的名词,那到底股票市盈率是什么?为什么资深投资者能通过市盈率,判断股票价值?今天大田环球就给大家解答一下:
1、什么是股票市盈率?
其实股票市盈率,就是当我们需要比较不同价格的股票是否被高估或低估时,用来衡量股票投资价值的一项指标。准确来说,市盈率是一个考察期在一年内,股价跟每股税收收益的比例,通常计算公式是:股票市盈率=普通股每股市场价格÷普通股每年每股盈利。
比如,某只股票的市场价格为20元,过去1年的每股税收盈利为5元,那么该股票的市盈率就是:20÷5=4,也就是该股票有4倍的市盈率,每付出4元的时候就可以收获1元盈利。
2、股票市盈率有什么用?
一般而言,市盈率是用于衡量同类股票的投资价值,如果某只股票市盈率越低,那么就愈值得投资。但是呢,由于不同行业、国家、时段的股票市盈率往往不一样,所以最好不要简单粗暴地进行类比。
此外,市盈率在衡量一家公司股票价值时,也有一定的参考价值。一般来说,公司股价的价值水平,往往可以通过市盈率来衡量:
0-13: 即价值被低估;
14-20:即正常水平;
21-28:即价值被高估;
28+: 反映股市出现投机性泡沫;
不过,市盈率对企业公司的股票价值也并非百分百准确,如果一家公司股票的市盈率过高,那么该股票的价格具有泡沫,价值被高估。但若公司的增长迅速以及未来的业绩增长非常看好时,股票目前的高市盈率可能恰好准确地估量了该公司的价值。
本文来源: 大田环球贵金属
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