A NOBO refers to an account holder who provides its carry broker (i.e., IB) permission to release their name and address to the companies or issuers of securities they hold.  These companies or issuers request this information in the event they need to contact shareholders regarding important shareholder communications such as proxies, circulars for rights offerings and annual/quarterly reports.  IB, by default, classifies clients as a NOBO but allows client to have their classification changed to that of an Objecting Beneficial Owner (OBO).  To do so, clients are required to provide formal notice of their request to be classified as an OBO through a Message Center ticket available via Account Management.