What it is:
How it works (Example):
On the Nasdaq , for example, the letter Z after the ticker (an XYZ Company security on the Nasdaq would have four letters in its ticker and would look like this, for example: XYZC-Z) to denote that the security is a special class of , a stub security, represents a interest or is a special class of warrants.
Why it Matters:
Many companies have several different types of securities listed. Extensions help investors understand which securities are which.