The P/E ratio is the current stock price of a company divided by its earnings per share (EPS).
Variations exist using trailing EPS, forward EPS, or an average of the two.
Historically, the average P/E ratio in the market has been around 15-25.
Theoretically, a stock's P/E tells us how much investors are willing to pay per dollar of earnings.
A better interpretation is that the P/E ratio is actually a reflection of the market's optimism concerning a firm's growth prospects.
The P/E ratio is a much better indicator of the value of a stock than the market price alone.
It's difficult to say in general whether a particular P/E is high or low without taking into account growth rates and the industry.
Changes in accounting rules as well as differing EPS calculations can make analysis difficult.
P/E ratios are generally lower during times of high inflation.
There are many interpretations as to why a company has a low P/E.
Don't base any buy or sell decision only on the multiple.