Analysis

P/E Ratio: Definition

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Simple Definition

How much you pay for every $1 a company earns. Price-to-Earnings ratio.

Why It Matters

P/E helps you spot overpriced stocks. If a stock has a P/E of 50, you're paying $50 for every $1 in annual earnings - that's expensive unless the company is growing fast. The S&P 500's average P/E is around 20-25. A P/E of 10 might mean a bargain, or a company in trouble.

Key Points

  • Calculate it: Stock Price ÷ Earnings Per Share (EPS)
  • Growth stocks have high P/Es (30-100+) because investors expect future earnings
  • Compare P/Es within the same industry - tech stocks naturally have higher P/Es than banks

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Related Terms

Common Questions

How much you pay for every $1 a company earns. Price-to-Earnings ratio. P/E helps you spot overpriced stocks. If a stock has a P/E of 50, you're paying $50 for every $1 in annual earnings - that's expensive unless the company is growing fast.

P/E helps you spot overpriced stocks. If a stock has a P/E of 50, you're paying $50 for every $1 in annual earnings - that's expensive unless the company is growing fast. The S&P 500's average P/E is around 20-25. A P/E of 10 might mean a bargain, or a company in trouble.

Calculate it: Stock Price ÷ Earnings Per Share (EPS)

Growth stocks have high P/Es (30-100+) because investors expect future earnings

Compare P/Es within the same industry - tech stocks naturally have higher P/Es than banks