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PEG Ratio Calculator

Calculate the Price/Earnings-to-Growth (PEG) ratio to evaluate stock value relative to earnings growth.

Calculation Inputs

Calculation Results

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Enter inputs on the left and click Calculate to view results.

Formula & Methodology

PEG = P/E Ratio / Annual EPS Growth Rate (%)

PEG < 1: undervalued; PEG = 1: fairly valued; PEG > 1: possibly overvalued relative to growth.

Frequently Asked Questions

Who invented the PEG ratio?

Popularized by Peter Lynch in "One Up on Wall Street." He used PEG to find fast-growing companies at reasonable prices.