从
市盈率衍生出来的一个比率，由
股票的未来
市盈率除以
每股盈余(
EPS)的未来增长率预估值得出。粗略而言，PEG值越低，股价遭低估的可能性越大，这一
点与
市盈率类似。须注意的是，PEG值的分子与分母均涉及对未来盈利增长的
预测，出错的可能较大。计算PEG值所需的预估值，一般取
市场平均预估(consensus estimates)，即追踪
公司业绩的机构
收集多位
分析师的
预测所得到的预估平均值或
中值。此比率由Jim Slater于1960年代发明，是他投资的主要判断准则之一。
参见P/E Ratio(市盈率)，
Consensus Estimates(市场平均预估)及EPS(每股盈余)。
The price earnings growth ratio is calculated by dividing a
stock's prospective price/earnings ratio (PER) by the rate of estimated future growth in earnings per
share (EPS). The higher the
PEG ratio, the more the market has already valued future earnings growth. A company with a PER of 15 and estimated growth rate of 15 percent would have a PEG of 1.0. A company with a PER of 15 and an estimated growth rate of 10 percent would have a PEG of 1.5. The ratio was invented by 1960s markets expert Jim Slater, who used it as his main investing criterion.
Consensus estimates are used to derive the PER and EPS used in the calculation.
See also: Ratio, EPS
