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Price–earnings ratio

The price–earnings ratio compares a share’s market price with earnings per share on a consistent basis. It is commonly used to compare market valuations and earnings expectations, but interpretation depends on the earnings period, accounting basis and prospects.

Worked example

A share price of 12 and earnings per share of 0.60 give a price–earnings ratio of 12 ÷ 0.60 = 20 times.

Common mistake

A high or low ratio alone does not establish that a share is overvalued or undervalued, and a negative EPS needs careful interpretation.

Where it appears in your exams

QualificationExamRelationshipPeriod
ACCA AAA (INT) Supporting September 2026–June 2027