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What Is PEG Ratio?

Definition and plain-English explanation of "PEG Ratio"

PEG Ratio — Valuation illustration

The Price/Earnings-to-Growth (PEG) ratio refines the P/E ratio by dividing it by the company's expected earnings growth rate. A PEG around 1.0 is often considered fair value; below 1.0 may indicate an undervalued growth stock. The PEG helps investors avoid overpaying for fast-growing companies that look expensive on P/E alone.

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