Nasdaq stocks have four-letter ticker symbols. If there's a fifth letter, it's there to signify something. Here are the extra letters you're most likely to see:

  • F designates a foreign company.
  • Y is for foreign stocks trading as American Depositary Receipts (ADRs).
  • E is for companies delinquent in filing reports with the Securities and Exchange Commission.
  • A and B refer to class A or B of the company's stock.
  • Q indicates that the firm is in bankruptcy proceedings.

If you're interested in investing in a company with a fifth letter, find out what it means before taking any action.

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This question and answer is adapted from The Motley Fool Money Guide: Answers to Your Questions About Saving, Spending, and Investing . For answers to this and 499 other common money questions, check it out -- it's a handy resource.