The letter "Z" after the ticker symbol and a dot on the Nasdaq identifies a miscellaneous entity. This extension is one of the fifth-letter identifiers that appear after a dot and a company’s ticker symbol. It indicates that the stock differs from single issue of common or capital stock. Essentially, it's a ticker add-on for "miscellaneous" and used far less now.

The reasons for a Z designation vary, including depositary receipts and other tradable units. The reasons for a Z designation aren’t always obvious and usually require a little research.