What is P/E Ratio (Price-to-Earnings)?
The P/E ratio divides a company's stock price by its earnings per share, indicating how much investors are willing to pay for each dollar of earnings. It's the most common valuation metric.
P/E Ratio (Price-to-Earnings) Explained
A high P/E suggests investors expect high future growth, while a low P/E may indicate undervaluation or declining prospects. P/E ratios vary widely by industry — tech companies typically have higher P/E ratios than utilities. Comparing a company's P/E to its historical average and industry peers is more meaningful than the absolute number. The S&P 500 average historical P/E is approximately 15-20.
Real-World Example
Company A trades at $100 with earnings of $5 per share — a P/E of 20. Company B trades at $50 with earnings of $5 per share — a P/E of 10. Company A is more expensive relative to current earnings, but if Company A is growing earnings at 30% vs 5% for Company B, the higher P/E may be justified.
Related Terms
Build Discipline Around P/E Ratio (Price-to-Earnings)
Understanding P/E Ratio (Price-to-Earnings) is one thing. Applying it consistently is where most traders fail. Ivern AI helps you build the daily habits to actually use what you know.
Start Building Discipline — Free