what is z in the nasdaq 
the term z refers to a designation for nasdaq listed securities that identifies a miscellaneous entity this extension is just one of the fifth letter identifiers that appear after a company s ticker symbol it indicates that the stock is different from single issues of common or capital stock the reasons for a z designation tend to vary and may include things like depositary receipts or units the reasons for a z designation aren t always obvious and usually require a little research understanding zcompanies must choose a unique ticker symbol when they want to list on a stock exchange this symbol is made up of a series of characters that identifies the company s stock it allows traders to execute transactions for these securities the ticker symbol also identifies the stock exchange on which a particular security trades for instance a ticker with three letters trades on the new york stock exchange nyse while those with four letters trade on the nasdaq these ticker symbols may come with suffixes that alert shareholders to specific situations about the stock itself suffixes for nasdaq listed securities appear as fifth letter identifiers and follow a dot after their ticker symbols 1 when a fifth letter appears it identifies the issue as different from a single issue of common stock or capital stock the z letter suffix identifies a variety of miscellaneous entities 1 unlike other designations this one can be fairly vague so it s up to individuals investors and traders to do their due diligence doing a little research can help them figure out why the suffix is added to the end of the security s ticker symbol as mentioned above the letter z identifies securities that are not single issues of common or capital stock it may indicate that the security is a depositary receipt stub additional warrant or another type of unit z historically had a different meaning in futures trading though where it indicated a delivery month of december until new options symbology was introduced in 2010 the nyse uses fourth letter identifiers to distinguish unique instances when certain issuances vary from normal conditions z vs other letter designationsthe nasdaq uses a variety of letters or fifth letter designations to distinguish stock issuances and the rights that come along with them z is just one of those designations like z the letter l also identifies miscellaneous entities this identifier denotes certificates of participation cops preferred participation and stubs if you see a ticker symbol with the letter p after a dot it means that the issuance is the preferred first issue of a company while the letter o is the second preferred issue the letter e means the company is delinquent with a securities and exchange commission sec filing while k denotes a series of non voting stock the letter f means that the stock is a foreign issue 