This means that the issuer's securities are no longer available for trading on a particular stock exchange.
As a professor of finance, it is crucial to understand the concept of delisting for listed issuers. In simple terms, delisting occurs when the last security of an issuer is removed from a stock exchange, rendering it unavailable for trading. This can happen for various reasons, such as not meeting the exchange's listing requirements or the issuer voluntarily requesting to be delisted. As a knowledgeable finance professional, it is essential to be well-versed in the implications of delisting for both the issuer and the stock exchange.