What are some of the key identifiers/characters of an undervalued stock?
P/E = price per earnings. low P/E (P/E < 4) means stock is undervalued.
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### Instruction:
What are some of the key identifiers/characters of an undervalued stock?

### Response:
P/E = price per earnings. low P/E (P/E < 4) means stock is undervalued.